For a plant stem and a domain allele, the height is set to T and the excessive allele is t. If the tall plant is means that the allele for T and t is 50% short and 50% small.
Hence the offspring would be the short stem.
The hetero parent for the tall (Tt) is crossed with a parent recessive (tt) The percentages are 25% for the tall stem and the 75% chance for a short stem plant.Learn more about the For plant stem length.
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To recharge your cell phone you plug it into an electrical outlet for several hours. The electrical energy is stored as ____ energy until you are ready to use the phone A. radiant B. Thermal C. Nuclear D.chemical
The electrical energy is stored as chemical energy within the phone's battery.
When you plug in your cell phone to recharge, the electrical energy from the outlet is stored as chemical energy in the phone's battery. This energy is released through chemical reactions when the phone is used.
How might a change in the strength of Earth’s magnetic field impact life on Earth?
Answer: i don`t know that much but
Explanation: if the magnetic field of the earth is decreasing year by year at one point it would be so weak that everything on earth would float here and there. the ocean of the earth would also float and as the ocean is one third of the earth the most of the earth would be covered in just floating water.
How do the expected results differ from the observed results?
Answer:
an expected result is more of an eduacated guess while an obsvered result is done through test experioments and observation.
Explanation:
What is the definition of photosynthesis
Answer:the process by which green plants and some other organisms use sunlight to synthesize foods from carbon dioxide and water. Photosynthesis in plants generally involves the green pigment chlorophyll and generates oxygen as a byproduct.
Explanation:
Hey there!
Photosynthesis is the reaction that converts light energy to chemical energy in sugar and carbohydrates. Humans can't eat sunlight, so we eat plants. Plants convert the energy in the sunlight into chemical energy using chlorophyll. Chlorophyll is a molecule produced by plants, algae, and cyanobacteria, which aids in the conversion of light energy into chemical bonds. It is the green pigment found in the chloroplasts of higher plants. They are a part of our ecosystem, and they are lower on the food chain.
Hope this helps!
Have a great day! :)
The central canal of an osteon contains
Answer:
Okay, Look at the explanation.
Explanation:
So what I interpret as
Hollow core of an osteon, also known as the Haversian canal. The central canal consists of blood vessels, lymph tubes, and nerves. Bone is positioned around the central canal, in compact rings, or lamellae.
The phases of the moon depend on how much of the lighted side of the moon can be seen from Earth
Please select the best answer from the choices provided
OT
OF
TRUE because the earth and moon are always rotating, therefore we see different parts based on where we are at.
Answer:
True
Explanation:
I took the test hope this helps
6. In fossils, what anatomical evidence indicates that gills were present?
7. Many transitional species had gills which means that they lived in
8. Lungs allow an animal to breathe _____________. Why did this adaptation evolve?
9. Tetrapods use ____________ to breathe. Do any modern tetrapods have gills? Explain.
13. Most modern tetrapods have ___________ digits on front limbs and __________ digits on back limbs, although some species have fewer. How does this number compare to the number of digits on the limbs of transitional fossil forms?
14. Why do many of the transitional fossils between fish and tetrapods have flat heads?
15. How did the anatomy of the shoulder and head change during tetrapod evolution?
16. ___________________ and __________________ are fossil species have characteristics unique to fish as well as characteristics found in fish and tetrapods. Describe the characteristics of lobe-finned fish that are similar to those of tetrapods.
17. Which lobe-finned fish is alive today? ________________________
18. Acanthostega and Icythyostega have been called fish-like tetrapods. Explain why they are described as such and describe the environment in which they probably lived.
19. Why is Tiktaalik such an important transitional fossil?
20. __________________ and _____________________ are early tetrapods that do not have features
unique to fish. Describe how these two species differ anatomically and what that means about where they each lived.
Answer and explanation:
6. In fossils, what anatomical evidence indicates that gills were present?
The anatomical evidence found in the fossils, such as special bone structures in the shoulders and skulls to support the gills, allows us to know the existence of these structures in some ancient species.
7. Many transitional species had gills, which means they lived in aquatic environments.
Gills are structures which allow people to breathe underwater, and many evolutionary transition species had them, such as the Tiktaalik, which also had lungs.
The existence of gill and lung respiration is what leads us to think that transition species were the first to leave the aquatic habitat to become terrestrial tetrapods.
8. Lungs allow an animal to breathe air. Why did this adaptation evolve?
Species considered transitional between fish and land animals were equipped with both gills and lungs.
It is suggested that the appearance of the lungs is due to the lower concentration of oxygen in the water and the need to obtain oxygen from another source, such as air, where the oxygen concentration is higher. In these circumstances, increased oxygen demand forced some animals to leave the aquatic habitat.
9. Tetrapods use lungs to breathe. Do any modern tetrapods have gills? Explain.
Some present-day tetrapods - such as salamanders, toads and frogs - are amphibians, and in their larval stage they remain in an aquatic habitat, so they are equipped with gills during this stage of their life cycle.
In amphibians like the frog, the passage from the larval stage to the adult stage involves a process called metamorphosis, in which the gills disappear and the lungs develop, in addition to the appearance of the four limbs, which are absent in the larva.
13. Most modern tetrapods have five digits on front limbs and five digits on back limbs, although some species have fewer. How does this number compare to the number of digits on the limbs of transitional fossil forms?
The transitional species originally had fins, but fossils of the first tetrapods have been found with developed limbs and five or more digits, representing an equal or greater number of digits than current species.
An example of a larger number of toes is represented by the genus Acanthostega, with eight toes on each limb.
14. Why do many of the transitional fossils between fish and tetrapods have flat heads?
Many of the transition fossils between fish and tetrapods have flat heads, from top to bottom, because these species participated in the transition between aquatic and terrestrial habitat, adapted to living in shallower waters near the surface, and with gill and lung breathing capacity.
15. How did the anatomy of the shoulder and head change during tetrapod evolution?
The changes in the anatomy of the shoulder and head during the evolution of the tetrapod were basically three:
The bony skeleton of the shoulder is separated from the skull, which in aquatic animals was attached. The appearance of the neck, between both structures. Development of an independent movement of the skull, with respect to the shoulder and the rest of the body.16. Tiktaalik and Acanthostega are fossil species have characteristics unique to fish as well as characteristics found in fish and tetrapods. Describe the characteristics of lobe-finned fish that are similar to those of tetrapods.
Lobe-finned fish -called sarcopterygians- like dipnoi, are lungfish, given the existence of functional lungs in their body. Another characteristic of lobefish is that each of their fins is attached to a single bone, as in the case of the humerus and femur of mammals.
The existence of lungs and the attachment of the limbs to a bone are common features among lobed finfish and tetrapods.
17. Which lobe-finned fish is alive today?
The coelacanth is one of the oldest species of fish that exist, as they are lobe-finned fish that were thought to be extinct, but still exist.
The characteristic of possessing lungs and bony skeleton relates them to the actual lung fishes and to the terrestrial vertebrates.
18. Acanthostega and Icythyostega have been called fish-like tetrapods. Explain why they are described as such and describe the environment in which they probably lived.
Both the Acanthostega and the Icythyostega were animals characterized by having four extremities and be equipped with gills and lungs at the same time, which determines that they are called tetrapods similar to fish.
Their characteristics made them suitable for living in aquatic and terrestrial environments, so they probably inhabited shallow waters or even the surface of the earth.
The origin of the fish from the tetrapods has been detected with the fossils and their study.
In fossils, the anatomical evidence indicating that gills are present has been the bone structure in the shoulder and skull to support gills.The transitional species having gills have been the indication that they live in an aquatic environment and utilize gills for respiration.Lungs allow the animals to breathe in air. The adaptation has been evolved as there has been to deal with the concentration difference of oxygen in air and water.Tetrapods use lungs to breathe. The tetrapods living in the larval stage in aquatic conditions have been equipped with gills.Most modern tetrapods have five digits on front limbs and five digits on back limbs, although some species have fewer. The fossils at the later stage of the development have been found to be equipped with an equal number of limbs.Many species have transition fossils as the intermediate has been the developmental phase of the fish and tetrapods.While the development from the tetrapod, the shoulder has been detached from the skeleton with the development of the neck. Free movement has been facilitated.Tiktaalik and Acanthostega are fossil species that have characteristics unique to fish as well as characteristics found in fish and tetrapods. The characteristic similar to the lobe fish and the tetrapods has been the presence of the gills.The characteristic presence of the lungs and the body skeleton in the lobe-finned fish supports their existence.Both the organisms have the presence of characteristic gills and fins similar to the fishes.Tiktaalik characteristics are unique to fish as well as characteristics found in fish and tetrapods.Pederpes and Tulerpeton are the early tetrapods that do not have features unique to fish.For more information about the fossils, refer to the link:
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______ are a group of cells that work together to perform a specific function
Answer:
tissue
Explanation:
Tissue
Answer:
✔ Tissues
Explanation:
:) its Correct i took a quiz
Describe the weathering process that has occurred to cause a dome to look the way it does now?
Answer:
The rain, wind, and possibly hail where's down the dome rock causing chucks of the dome fall off.
Explanation: The rain softens the rock while the wind blow debris on the dome and (possibly) hail knocks the chucks of rock off the dome. (If there is no hail then eventually the rain and wind will make the rock fall off the dome)
Hope this helps!Rebekah is studying lichens growing on a cooled lava field. What is Rebekah most likely researching?
A. secondary succession
B. climax communities
C. pioneer species
D. disturbances
Answer:
C) pioneer species
Explanation:
Rebekah is most likely researching pioneer species that are in option C, as lichens are known to be some of the first organisms to colonize barren or disturbed habitats, such as newly formed lava fields, and are therefore considered pioneer species.
What is the pioneer species?
Pioneer species are the first species to colonize a barren or disturbed habitat, such as a newly formed lava field, a recently retreating glacier, or an abandoned building. These species are able to grow in harsh conditions and are often characterized by rapid growth rates, high reproductive rates, and the ability to fix nitrogen. Pioneer species can be plants, lichens, or even bacteria, and they play an important role in the process of primary succession. Pioneer species are able to grow in these harsh conditions because they have adaptations that allow them to obtain nutrients and water from their environment.
Hence, Rebekah is most likely researching pioneer species that are in option C,
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A toxin was discovered that prevents cells from releasing stored energy. What process would be affected?
Answer:
cellular respiration
Explanation:
What are the flattened membranes in chloroplasts called?
O
A. Stroma
B. Photosystems
O
C. Thylakoids
O
D. Photons
Answer:
The answer is thylakoids.
Explanation:
Within the membranes, the region is called the stroma but the innerconected flattened membrane is called the thylakoids.
The flattened membranes in chloroplasts is called thylakoid, hence option C is correct.
The fluid-filled area of the chloroplast that encircles the thylakoids is called the stroma. The protein complexes known as photosystem are responsible for absorbing light energy and using it to fuel the creation of ATP and NADPH. Individual units of light energy are called photons.
Thylakoids are the term for the flattened membranes found in chloroplasts. They are the location of the photosynthesis' light-dependent processes, which use light energy to change water as well as carbon dioxide into oxygen and glucose.
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How does a scientist come up with the theory?
Answer: By reviewing extensive amounts of evidence that support a scientific explanation of phenomena. For example, Darwin's Theory of Evolution is supported because of the evidence and research of the finches in the galapagos islands that make sense in a scientific world that evolution does indeed exist.
Explanation:
What type of offspring are produced by asexual reproduction? *
Answer:
Asexual reproduction produces offspring that are genetically identical to the parent because the offspring are all clones of the original parent. This type of reproduction occurs in prokaryotic microorganisms (bacteria) and in some eukaryotic single-celled and multi-celled organisms.
Asexual reproduction produces offspring that are genetically identical to the sole parent, resulting in clones. Such reproduction is found in various species and can occur via methods like binary fission, fragmentation, budding, and parthenogenesis. Although this allows for quick population growth in stable environments, it limits genetic diversity.
Explanation:Asexual reproduction results in offspring that are genetically identical to the single parent and to each other. This means the resulting offspring are clones of the original parent. Different methods of asexual reproduction include binary fission, fragmentation, budding, and parthenogenesis, which vary among species but share the commonality of not requiring the genetic exchange that occurs in sexual reproduction. While this type of reproduction can be advantageous in stable environments where rapid population growth is beneficial, it lacks genetic diversity, which can be problematic when adapting to changing environments or resisting diseases.
Examples of organisms that reproduce asexually include bacteria that utilize binary fission, sea stars, and sea anemones that can regenerate from fragments, and some plants that can produce genetically identical offspring through budding or fragmentation.
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Can emotions affect breathing? Explain
Answer: Respiration is one of emotional-altered physiological mechanisms Breathing rate in breathing habits is significantly altered by emotional changes. ... Higher emotion-related centers affect respiratory changes in response to anxiety
Explanation:
hope this helps! let me know if its wrong pls!
if i get it right pls give me most brainly:D TYY
Yes. Having a panic attack can make breathing much more difficult with shallow breaths. Relaxing will slow down breathing.
What would happen to the cell or organism if the protein is changed as a result of the mRNA being produced incorrectly?
A. The cell or organism will definitely have changes
B.The cell or organism may or may not have any noticeable changes
C.The cell or organisms life expectancy will drastically decrease
D.The cell or organism will not have any changes
Answer:
B. The cell or organism may or may not have any noticeable changes.
Explanation:
Some mutations can cause small changes, if any, such as different colored hair, or they can cause massive changes such as uncontrollable cell division, AKA cancer. Mutations are random so nothing is definite.
The mutation is the alteration in the nucleotide sequence or the proteins. If mRNA is incorrectly produced and alters the protein then there may be or may not be any noticeable changes. Thus, option B is correct.
What is mutation?The mutation is the state in which the bases or the amino acids coding the proteins during the mRNA translation are altered due to mutagens, genetic error, etc.
The mutation in the protein may or may not cause any change as some changes are not noticeable and very small, while some alterations may be big and dangerous.
Therefore, the mutation in the proteins may or may not be noticeable.
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The model above shows a cell moving a substance into the cell using a protein to facilitate the transport. Which
substance is most likely being transported through the membrane with this method?
A protein is used to facilitate the transport of a substance into a cell, and the substance is most likely transported through the membrane using this method of facilitated diffusion.
What is facilitated diffusion and what is its significance?Facilitated diffusion is a type of passive diffusion in which the energy of the ATP is not used for the transport of the molecules from the outside to the inside, but there is a protein present on the cell surface that helps the movement of the molecule, and as this protein facilitates the movement, it is called "facilitated diffusion."
Hence, a protein is used to facilitate the transport of a substance into a cell, and the substance is most likely transported through the membrane using this method of facilitated diffusion.
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What is the Topic of "Yuck Germs"?
Please help!
4. How many chromosomes would be in an offspring?
Answer:
46
Explanation:
In a human egg or sperm, there are 23 chromosomes, one of which is an X or Y. A human egg is haploid (has 23 chromosomes) and a sperm is haploid (has 23 chromosomes). Upon fertilization, the new baby now has the 'correct' human number of 46 chromosomes in each of its somatic cells.
Answer:
There would be 46 chromosomes in an offspring.
Explanation:
This is because an offspring inherits 23 from its mother and 23 from its father.
A what is a scientific instrument used to sense and record movements in Earth's Lithosphere?
Answer: seismograph
Explanation:
The holes left behind in a rock by a crawling worms are
PLEASE HELP! In this simulation, the masses of the planets were all the same. Do you think if the masses of the planets were different, it would affect the results? Why or why not?
Answer:
It would certainly make a difference.
Explanation:
The mass of a planet determines how thick the planets atmosphere would be, if it can even sustain an atmosphere. If all the masses are the same, all of the large planets would not be able to sustain life, while all of the smaller, denser planets still have a chance.
The mass of a planet also affects it’s gravitational pull. If all of the planets had the same mass, they would all have the same gravitational pull, meaning that they would all attract the same amount of asteroids, meteors, and other spacial objects.
Overall, the simulation would certainly be different, for many, many reasons. The above are only two, and if you would like more, just add a comment and I can give you more.
As per the stimualtion if the mass of the plants is the same, It would not create any difference.
What masses of planets different?The mass of a planet are different as they are made of different compositions and their mass determines their thickness and thinness.
The mass is a indication the role of gravity and the density of atmosphere. If the masses are the same then all planets would be of the same size and many would not be able to sustain life.
Find out more information about the simulation.
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How big is the largest known asteroid? about 10,000 kilometers in diameter about 1,000 kilometers in diameter about 100 kilometers in diameter about 10 kilometers in diameter
Answer:
About 1,000 kilometers in diameter
Explanation:
Which lists the steps of Meiosis II in the correct order?
anaphase II, metaphase II, prophase II, telophase II
prophase II, metaphase II, anaphase II, telophase II
anaphase II, telophase II, prophase II, metaphase II
prophase II, telophase II, anaphase II, metaphase II
Answer: Prophase II, metaphase II, anaphase II, and telophase II
Explanation: In prophase the spindle forms to prepare the chromatids for splitting. Metaphase lines up the chromosomes at the equator. In anaphase, the sister chromatids split, and in telophase seperate cells are created.
The spindle develops during prophase to get the chromatids ready for splitting. The chromosomes are aligned near the equator during metaphase. Sister chromatids split during anaphase, and separate cells are formed during telophase. Thus, option B is correct.
What is the importance of steps of Meiosis II in cell cycle?The second division of meiosis, known as meiosis II, occurs when each chromosome's chromatid is evenly distributed across the daughter cells. The interphase, which comes before meiosis II, is a period in which DNA is not replicated.
It keeps the number of chromosomes in sexually reproducing organisms constant. Haploid gametes are created from a diploid cell, and they then combine to create another diploid cell. 2. It limits chromosomal number multiplication and preserves stability.
Therefore, Each time cells divide, it causes the development of four daughter cells. The daughter cells have the same size and structure as the mother cell, but have a different number of chromosomes.
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Which statements are true about skin cancer? Check all that apply. It can be caused by a mutation in normal cells. It can result from too much exposure to the harmful rays of the Sun. Skin cancer is found more frequently in people who have obesity. Most skin cancer cells multiply rapidly. Skin cancer can be treated in a variety of ways, including with chemotherapy.
Answer:
i know that it comes from harmful rays from the sun, and can be treated by chemotherapy. im not sure about the rest, and im pretty sure it is not more common in obese people.
Explanation:
Which is the final product of ecological succession?
A. climax community
B. ecosystem
C. secondary succession
Answer:
The final product of an ecological succession is a Climax Comminuty
What separates a salamander from a turtle?
One of the 14 families of living turtles, tortoises are just a collection of closely related land turtles with common names that finish in tortoise rather than turtle.
Thus, toads are just many species of frogs that, despite not all being closely related to one another, have drier skin than most other frogs and a propensity to secrete harmful substances.
And newts are simply salamanders from the same family that are termed newts rather than salamanders for some reason.
As with toads compared to frogs and newts compared to salamanders, all turtles are turtles, but not all turtles are turtles.
Thus, One of the 14 families of living turtles, tortoises are just a collection of closely related land turtles with common names that finish in tortoise rather than turtle.
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Final answer:
Salamanders have moist skin and need water for reproduction, unlike turtles which have dry scales and a hard shell. Salamanders are amphibians with varying modes of respiration and share a facial resemblance with frogs and toads.
Explanation:
What separates a salamander from a turtle? One of the key distinctions is their skin; salamanders have moist skin, which is quite different from the dry scales on a turtle's skin. Salamanders are also amphibians and share some evolutionary traits with frogs and toads, such as a similar facial structure and the need for a watery environment for reproduction. Unlike lizards that are purely terrestrial, salamanders are semiaquatic, meaning that they spend part of their lives in water, particularly for the purpose of reproduction.
Salamanders, like the marbled salamander, typically have a slender body, short legs, a long tail, and moist skin. While most have this general body plan, respiration among salamanders can vary. For example, some use lungs, others breathe through their skin or the lining of their mouth. In contrast, turtles have a hard shell for protection and are reptiles, living both on land and in water but not requiring water to reproduce as amphibians do.
Which examples represent abiotic factors affecting biotic factors? Check all that apply.
-sediment builds up in a riverbed, slowing the river's speed.
-ash from a volcanic eruption kills new plant growth.
-a hungry raccoon consumes a freshwater clam.
-warm water from a nuclear power plant causes overgrowth of algae.
-a river floods and deposits tree pollen along its banks.
Answer:
B-ash from a volcanic eruption kills new plant growth.
D-warm water from a nuclear power plant causes overgrowth of algae.
E-a river floods and deposits tree pollen along its banks.
Explanation:
Ecosystem consist of biotic and abiotic elements. Biotic refers to all living organisms while abiotic refers to all non-living elements of the environment. Living organisms depends on abiotic factors such as light, temperature, water and soil etc for their growth and survival. In the above answer, Ash of volcano, warm water and rivers are abiotic elements while plant, algae and pollen are biotic elements.
The non-living chemical and physical components that are part of the ecology and environment is called abiotic factor while biotic factors are living organism that is part of the ecosystem.
The correct examples are:
Option B. Ash from a volcanic eruption kills new plant growth.Option D. Warm water from a nuclear power plant causes the overgrowth of algae.Option E. A river floods and deposits tree pollen along its banks.The effects can be explained as:
Abiotic factors like temperature, water, air, soil etc. affect the biotic factors like plants and animals of an ecosystem.Ash from volcanoes and warm water discharged from nuclear plants are abiotic factors that affect the growth of biotic factors like plant and algae.Thus, options B, D and E are correct choices.
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Which of these best describes incomplete dominance? When the dominant allele covers up the recessive allele. When both the dominant and recessive allele express a phenotype (like spots). When the dominant allele does NOT completely cover up the recessive allele and they MIX creating a third phenotype.
Answer:
When the dominant allele does not cover up the recessive.
Explanation:
The mix and is considered incomplete.
Answer:
Which of these best describes incomplete dominance?
When the dominant allele does NOT completely cover up the recessive allele and they MIX creating a third phenotype.
Explanation:
A food chain has four trophic levels. The fourth level has 10 hawks that are a natural predator to the snakes in the ecosystem. How much energy would be available in the first trophic level?
A.
1000
B.
100
C.
1
D.
10,000
Starting with 10 hawks at the fourth level, considering a 90% energy loss per level, we calculate 10,000 units at the first trophic level.
The energy available at each trophic level typically decreases by about 90% due to energy loss through metabolism, growth, and waste production. Starting with the energy available to the hawks at the fourth trophic level, we can estimate the energy at the first trophic level as follows:
Energy at 4th level = 10 hawks
Energy at 3rd level = 10 hawks / 0.1 = 100
Energy at 2nd level = 100 / 0.1 = 1000
Energy at 1st level = 1000 / 0.1 = 10,000
So, the correct answer is:
D. 10,000
The correct question is:
A food chain has four trophic levels. The fourth level has 10 hawks that are a natural predator to the snakes in the ecosystem. How much energy would be available in the first trophic level?
A. 1000
B. 100
C. 1
D. 10,000