Final answer:
True mosses, ferns, and spike mosses possess alternation of generations in common, which becomes useless for determining the flower of stone's group. Other characteristics they share include the presence of a sporophyte generation that is dominant.
Explanation:
Mosses, ferns, and spike mosses share the presence of alternation of generations, which is the cycle of having a haploid gametophyte stage and a diploid sporophyte stage in their life cycles. The sporophyte generation is dominant in these plants, meaning it is the more visible and longer-lived stage.
In terms of the other characteristics listed, true mosses, ferns, and spike mosses differ. True mosses have simple midrib-like structures resembling true leaves, while ferns have fronds and spike mosses have strap-like leaves. True mosses and spike mosses have flagellated sperm, while ferns do not. Additionally, true mosses and spike mosses lack true roots, instead having multicellular rhizoids, while ferns have true roots and leaves.
A drug that restricts the activity of angiotensin converting enzyme (ACE) would likely result in all of the following physiologic changes but one. Which of the following is the least likely to result from a drug blocking ACE activity?
A student set up an experiment to show the effect of light color on photosynthesis in Elodea plants. She filled three test tubes with distilled water and placed a piece of Elodea in each of the tubes. She added a drop of phenol red, which turns red in a basic solution and yellow in an acidic solution. She blew in each tube to add carbon dioxide, which caused the distilled water to become more acidic so the phenol red turned yellow. She exposed Tube A to white light, Tube B to green light, and Tube C was wrapped in aluminum foil. Which of the tubes should she expect to turn red the fastest?
Answer:
Tube A will turn red the fastest.
Explanation:
Tube A will turn red fastest because Elodea plants will take up the white light and carry out photosynthesis.In tube B, the red colour will not be generated fastly because plants do not use green light. Usually, the green light is just reflected by the plants and it is not absorbed.
In tube C, no photosynthesis will be able to occur because due to the wrapped aluminium foil the plants could not receive any light for photosynthesis.
From the setup of the experiment to show the effect of light color on photosynthesis in Elodea plants, the solution in Tube A should turn red the fastest.
White light is essentially a mixture of all light colors. Hence, the Elodea plant in Tube A will absorb the most effective light color from the white light for its photosynthesis, utilizing the carbon dioxide in the tube's solution faster and making it turn red.
Green light is generally considered to be the least efficient of all light colors when it comes to photosynthesis. Hence, the rate of consumption of carbon dioxide from the tube with green (Tube B) light would be slow.
There will not be any photosynthesis in Tube C because there is no light for the process. the aluminum foil would have blocked any form of light that could get to the plant in the tube.
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An endospore may survive a drought because it is protected by a
Answer:
An endospore may survive a drought because it is protected by a THICK WALL
Explanation:
An endospore is a structure that is produced by some bacteria. This structure possesses characteristics such as:
a. Endospores have thick walls
b. They are very resistant and resilient to changes in temperature.
c. They are resistant as well to the action or activity of some chemicals.
d. Endospores serves as a means of protection for microorganisms such as Bacteria.
e. Endospores do not reproduce.
f. Endospores can be dormant or Inactive for a very long period of time.
Endospores may survive drought, activity of chemicals, extreme weather conditions, extreme temperatures due to the presence of thick walls in their structure.
Answer:
An endospore may survive a drought because it is protected by a specialized wall.
Explanation:
Endospores are non-reproductive, specialized cells, produced by bacterias to ensure survival under unfavorable conditions.
The endospore resistance can be explained by its particular wall structure. The most external proteinic layer that encloses the spore, supplies chemical and enzymatic resistance. Under this layer, there is a thicker layer composed of peptidoglycan, the cortex.
An appropriate cortex formation is necessary to avoid the spores´dehydration. This wall provides resistance against high temperatures.
The germ cellular wall is located under the cortex. This layer of peptidoglycan will become the bacterial cell wall after the endospore germinates.
The internal membrane, under the germen´s cellular wall, is an important permeability barrier against many chemical products potentially harmful.
If the parents of a child are blood types AB and O, what are the possible blood types of the child?
a) A or B
b) A only
c) O
d) AB
Is rainfall a density-dependent or density-independent limiting factor?
Question 3 options:
density-independent
density-dependent
Which describes the organs in the human body
Answer: A group of tissues that work together to perform a common function.
Explanation:
Which is an example of fungi reproduction? Question 24 options: A broken mycelium grows a new mushroom. During budding, a yeast cell forms spores. Lichen fungi produce egg and sperm cells. Mold produces seeds for new mold to grow.
Answer:
Which is an example of fungi reproduction?
During budding, a yeast cell forms spores
Explanation:
Fungi reproduce asexually through budding, fragmentation or producing spores
Final answer:
Fungi like yeast can reproduce asexually through budding, where a new cell forms from a bulge on the parent cell, eventually detaching after the nucleus divides.
Explanation:
Fungi have the ability to reproduce through various asexual methods, such as fragmentation, budding, and producing spores. In the process of budding, a characteristic of yeast, a bulge appears on the side of the yeast cell and the nucleus divides. The bud grows until it is ready to separate and form a new yeast cell. This asexual reproduction is a type of cytokinesis. It's important to note that fungi can also reproduce sexually; however, the example of yeast reproducing by budding is a case of asexual reproduction.
You are exploring the jungle and find a new species of plant. Some of the plants have red flowers and some have yellow flowers. You cross a red flowering plant with a yellow flowering plant and all the offspring have orange flowers. You might assume that the alleles for flower color in this plant show ____________________.
Answer:
You are exploring the jungle and find a new species of plant. Some of the plants have red flowers and some have yellow flowers. You cross a red flowering plant with a yellow flowering plant and all the offspring have orange flowers. You might assume that the alleles for flower color in this plant show
RR x YY= RY, RY, RY, and RY
It is expedient to know when offspring reflects different phenotypic features different from the parents, it might actually be mutation of gene caused such
Explanation:
The alleles for flower color in the new plant species described show incomplete dominance, resulting in an intermediate color (orange) in the offspring when a red flowering plant is crossed with a yellow flowering plant.
Explanation:Based on the provided scenario, where crossing a red flowering plant with a yellow flowering plant results in offspring with orange flowers, you might assume that the alleles for flower color in this plant show incomplete dominance. Incomplete dominance is where the phenotype of the heterozygotes is an intermediate phenotype of the two homozygote parents. In the case described, since the flowers of the offspring are neither purely red nor purely yellow but a mix of both (orange), this suggests that neither the red allele nor the yellow allele is completely dominant over the other.
For example, if we consider red to be R and yellow to be Y, when these alleles come together in the offspring, they produce the intermediate orange color, indicating that neither allele is completely dominant. This is similar to what is observed in snapdragons, where crossing a plant with red flowers (CRCR) with one with white flowers (CWCW) results in offspring with pink flowers (CRCW), illustrating incomplete dominance.
compare circulatory systems of the earthworm, frog, and squid. Include information on major organs and vessels, blood transfer process, how the systems are similar, and how the systems differ. Explain the differences in terms of structure and environment.
Answer:The frog and squid have similar structure while the earthworm differs
Explanation:
The earthworm has two ventricles while the latter have one ventricle each
Earthworm can't survive in water but the others can survive on land and in water
The current eccentricity of Earth is .017. The shape of the Earth's orbit changes from being elliptical (high eccentricity) to being nearly
circular (low eccentricity) in a cycle that takes between 90,000 and 100,000 years. When the orbit is highly elliptical, the amount of
insolation received at perihelion would be on the order of 20 to 30 percent greater than at aphelion. What would be the predicted
result of this change?
The awnser is “A much warmer climate than what we are currently experiencing”
Answer:
In the given case, a much warmer climate will be experienced in comparison to what one is experiencing at the present time.
Explanation:
When the orbit of the Earth changes its path, one can witness a variation in the Earth's climatic conditions. Like when the Earth comes nearer to the Sun, the climate of the Earth becomes warmer. However, when the axis of the Earth shifts slightly away from the Sun, one can witness a reduction in the Earth's temperature.
Therefore, in the given case, the isolation received at perihelion would be twenty to thirty percent more in comparison to aphelion when the orbit is more elliptical, this condition eventually results in a warmer climate.
Question on edmentum for earth and space science B:
The graph shows how the eccentricity of Earth’s orbit increases and decreases in a somewhat predictable pattern. Read and interpret the data in the graph. Approximately how long does it take for Earth’s eccentricity to complete a cycle from one crest to the next)?
a graph showing eccentricity variation with time; eccentricity fluctuates between a maximum of 0.05 at 225,000 years ago to a minimum of 0.005 at 375,000 years ago
Explanation/ sample answer is : This cycle takes approximately 100,000 years to complete.
Which of the following best describes an antibody?
1. Protane the targets and blocks and molecules
2. A molecule that causes the body to react negatively to certain substances
3. A tiny invader, like a virus,
bacterium or parasite
4. A molecule that provides energy to the body
Answer:
B. A molecule that causes the body to react negativly to certain substances.
Explanation:
Antibody (Ab) also known as immunoglobulin (Ig) is a large Y shaped protein produced by plasma cells. They are used by the body's immune system to neutralize pathogens like harmful bacteria and viruses.
They are secreted by the B cells of the adaptive immune system mostly by differentiated B cells called plasma cells. They are glycoproteins.
The structure labeled “A” in this diagram of a virus is called the
a. RNA envelope
b. Capsid
c. Nuclear membrane
d. Viral genome
The structure labeled “A” in this diagram of a virus is called the b. Capsid. Therefore, b. Capsid is correct .
The capsid, a crucial component of viruses, serves as a protective protein shell enveloping the viral genome.
Comprising subunits known as capsomeres, the capsid exhibits diverse structural forms, such as icosahedral, helical, and enveloped.
The icosahedral shape, with 20 triangular faces, is a common configuration, offering stability and efficiency in encapsulating the genetic material.
Capsomeres possess the unique ability to self-assemble, forming the capsid that shields the viral genome from external threats and damage.
Additionally, the capsid plays a pivotal role in facilitating the virus's attachment to host cells, a crucial step in the infection process.
Some viruses boast an additional layer beyond the capsid, known as the RNA envelope.
This outermost layer, though not labeled in the diagram, comprises a lipid bilayer studded with proteins.
The envelope serves several functions, including aiding the virus in evading the host's immune system and facilitating the virus's entry into host cells.
This membrane-like structure enhances the virus's adaptability and interaction with the host environment.
It's essential to note that the nuclear membrane mentioned is distinct from the viral components.
The nuclear membrane surrounds the nucleus in eukaryotic cells, providing a boundary between the nucleus and the cytoplasm.
The viral genome, on the other hand, represents the genetic material of the virus, not a membrane.
These structural elements is fundamental to deciphering the intricacies of viral infection and host interactions in various biological contexts.
What are the four levels of organization in an organism?
Answer:
Cell, Tissue, Organ, Organ system
Explanation:
A group of cells makes up a tissue, A group of tissues makes up an organ and a group of organs makes up an organ system.
Rock is a type of Earth material. Most rock is made up of _______.
Answer:
Rock is a type of Earth material. Most rock is made up of minerals.
Hope this helps you
How does fever indicate that your body's immune system is doing its job?
Answer:
Fever can support the immune system's attempt to gain advantage over infectious agents, such as viruses and bacteria, and it makes the body less favorable as a host for replicating viruses and bacteria, which are temperature sensitive.
Explanation:
Some cancers are caused by mutations that stop certain proteins from working. The inactivation of what kind of protein could lead to cancer? A. One that slows down the cell cycle. B. One that acts as a growth-reducing molecule. C. One that responds to growth-promoting molecules. D. One that speeds up the cell cycle.
Answer:
Some cancers are caused by mutations that stop certain proteins from working. The inactivation of what kind of protein could lead to cancer?
One that speeds up the cell cycle.
Explanation:
all i need to ask is in the picture above
Answer:
number 1
Explanation: it is nature, when one feels threatened they want to make themselves as unapproachable as possible and for comfort, it also eases ones mind to know that if something happens to them, that they will not be alone
why is it necessary to measure the temperature in the water bath
Measuring the temperature in a water bath is vital for controlling the heat transferred during processes like calorimetry, maintaining thermal equilibrium, and absorbing heat efficiently due to water's high specific heat. Different thermometers may also yield slightly different results, further underscoring the importance of temperature measurement in obtaining accurate results.
Explanation:It is necessary to measure the temperature in a water bath in order to monitor and control the amount of heat transferred in different processes, such as in calorimetry. Calorimetry is a technique used to measure the heat involved in chemical and physical processes. Heat is exchanged with a calibrated object, known as the calorimeter, and the temperature change measured by the calorimeter is utilized to derive the amount of heat transferred by the process under study.
Meticulously measuring the temperature of the water bath aids in maintaining thermal equilibrium and ensures that the correct amount of heat is being absorbed by the solution. Moreover, because the specific heat of water is significantly greater than that of many other substances, it can absorb a large amount of heat without a large change in temperature, making it an ideal medium for temperature control.
Additionally, different thermometers may give somewhat different results for other temperatures, hence adding to the importance of temperature measurement for accurate results.
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Which type of climate has the greatest amount of rock weathering caused by frost action? *
A) a wet climate in which temperatures alternate between below freezing and above freezing
B) a wet climate in which temperatures remain below freezing
C) a dry climate in which temperatures remain below freezing
D) a dry climate in which temperatures alternate between below freezing and above freezing
Answer:
This would be A hope this helps
Explanation:
The greatest amount of rock weathering caused by frost action occurs in a wet climate where temperatures alternate between below freezing and above freezing, because of the repeated freeze-thaw cycles that cause rocks to fracture.
Explanation:The type of climate with the greatest amount of rock weathering caused by frost action is A) a wet climate in which temperatures alternate between below freezing and above freezing. Frost action, or freeze-thaw weathering, is most effective in climates where the temperature variations allow water to repeatedly freeze and thaw. When water freezes in the cracks of rocks, it expands, exerting pressure and causing the rock to break apart. This process is less effective in climates where the temperature remains constantly below freezing, as the water remains frozen and does not undergo the expansion and contraction that causes the rock to fracture. Similarly, in dry climates (whether the temperature fluctuates or remains steady), there is insufficient moisture to contribute significantly to frost action.
Climate types such as subarctic climates and climates with pronounced seasonal temperature variations, often characterized by wet conditions and temperature cycles around the freezing point, result in considerable frost weathering. In contrast, dry or arid climates like deserts and polar climates with extreme colds provide less opportunity for such alternating freeze-thaw cycles and thus experience less frost action weathering.
Which of the following statements about the cytoskeleton is false? Group of answer choices The cytoskeleton is an elaborate series of rods throughout the cytosol. Once laid down, the elements of the cytoskeleton are fixed and remain permanently in place. The cytoskeleton helps organize the cell’s structure and activities The cytoskeleton is composed of three types of fibers: microfilaments, microtubules, and intermediate filaments. Next
Answer:
Which of the following statements about the cytoskeleton is false?
The cytoskeleton helps organize the cell’s structure and activities
Explanation:
The false statement about the cytoskeleton is Once laid down, the elements of the cytoskeleton are fixed and remain permanently in place.
The second option is correct
what is the cytoskeleton ?The cytoskeleton is described as a dynamic structure that is constantly being remodeled. The elements of the cytoskeleton can be broken down and reassembled, and they can also move around the cell. This allows the cytoskeleton to adapt to the changing needs of the cell.
The cytoskeleton is an elaborate series of rods throughout the cytosol.
The cytoskeleton helps organize the cell's structure and activities.
The cytoskeleton is composed of three types of fibers: microfilaments, microtubules, and intermediate filaments.
Therefore, The second option is correct
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He was not satisfied with command of his native language merely, but gave attention to the study of foreign ones, and in particular was a master of Latin that he could speak it as well as his native tongue; but he could understand Greek better than he could speak it. He was so eloquent . . . The King spent much time and labour with him studying rhetoric, dialectics, and especially astronomy; he learned to reckon, and used to investigate the motions of the heavenly bodies most curiously.
This passage exemplifies Charlemagne's enthusiasm for
Answer:
Explanation:
Language is the answer trust me
Answer:
Language
Explanation:
i just took the test
why does carbon accumulate?
Describe the relationship between DNA, Chromosomes, and Genes
Answer:
they are all located in the nucleus
Explanation:
Answer: DNA carries instructions for making the proteins a cell needs.
DNA molecules are found in chromosomes.
Genes are segments of DNA that contain instructions that code for proteins.
Explanation:
Just did it on edge 2020 i hope this helps you.
10. Sexual reproduction is believed to have
evolved originally as a way for cells to
a. shuffle genetic material.
b. repair damaged DNA.
c. produce diploid individuals.
d. increase their population growth at a
maximum rate.
Answer:
A
Explanation:
Describe the relationship between the two vocabulary terms given.
Dominant and Recessive
Answer:
The dominant trait is the trait that will overpower the recessive trait. Example: A brown eyed parent and a blue eyed parent will most likely have a brown eyed baby because brown eyes are dominant and blue eyes are recessive. Recessive traits can only happen if the other parent also is recessive or if the other parent is heterozygous recessive.
Explanation:
What is the shape and arrangement of neisseria gonorrhoeae
Answer:
Bean shaped diplococci
Explanation:
Typically Neisseria gonorrhea is bean-shaped and present in the form of pairs. Because they present in the form of pairs called diplococci.
Why does secondary succession occur faster than primary succession?
Answer:
Soil with nutrients is already present. Seeds are present from earlier occupants, brought in by wind, and/or germinate after fire.
Explanation:
Sample answer hope this helps!!! Brainliest?
Secondary succession usually occurs faster than primary succession because the components are already present. whereas in primary succession, there is no soil and it needs to form.
as pioneer species must inhabit the area, they must die, and as this happens repeatedly, soil formations take place.
What is Ecological Succession?Ecological succession is the process by which the mix of species and habitats in an area varies over time. Gradually, these communities replace one another.
Thus, Secondary succession usually occurs faster than primary succession.
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Your teacher is describing a plant that bears seeds and flowers, has five flower petals, and has seeds that are enclosed by
fruits. What kind of plant is he describing?
gymnosperm
o angiosperm
obryophyte
monocot
Answer: angiosperm
Explanation: NOT: monocot
angiosperm
Answer:
angiosperm
Explanation:
just took the test on edge 2021
Aquatic biomes can be distinguished by chemical characteristics such as dissolved oxygen content and salinity and by physical characteristics such as water flow. Which five of the following statements about aquatic biomes are true?
Answer:
which five?
Explanation:
Through the use of the Polymerase Chain Reactions (PCR), small amounts of DNA
A. can pair with complementary sticky ends of cut segments.
B. can be amplified in volume to result in many copies of the segment.
C. can be cut in specific locations to isolate DNA sequences.
D. can be sorted and mapped.
Answer:
B. can be amplified in volume to result in many copies of the segment.
Explanation:
The purpose of PCR is to amplify small amounts of DNA so that you can get a sample large enough to analyze (or use for some other purpose), especially in a crime scene. A. is referring to restriction enzymes, enzymes that cut at specific locations along DNA strands to create "sticky ends." C. is referring to restriction enzymes once again. D. is simply irrelevant.
Through the use of the polymerase chain reactions (PCR), small amounts of DNA can be amplified in volume to result in many copies of the segment. Thus, the correct option is B.
What is Polymerase Chain Reaction?The polymerase chain reaction is a method widely which is used to rapidly make millions to billions of copies of a specific DNA sample, it also allows the scientists to take a very small sample of DNA and amplify it to a large enough amount to study in detailed study.
Polymerase chain reaction is fundamental to many procedures which are used in genetic testing and research work, including the analysis of ancient samples of DNA and identification of infectious agents as well. In this process, small amounts of DNA can be amplified in volume to result in many copies of the segment.
Therefore, the correct option is B.
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