The tiles below show several organisms that can be found in a desert ecosystem. Arrange the organisms in order of energy transfer to create the most likely food chain.
plant
hawk
mouse
grasshopper
snake
Answer:
plant - grasshopper - mouse - snake - hawk
Explanation:
A food chain shows how energy is transferred from one organism to another in an ecosystem. Arrows point from one organism to the organism that eats it. Photosynthetic organisms, such as plants, are always at the bottom of a food chain. In a desert ecosystem, plants would be eaten by grasshoppers, grasshoppers would be eaten by mice, mice would be eaten by snakes, and snakes would be eaten by hawks. So, the most likely food chain would be:
plant → grasshopper → mouse → snake → hawk
How do natural selection and evolution contribute to antibiotic-resistant bacteria ?
when a divergent boundary occurs under the ocean it is called
what is the path that a body follows as it travels around another body in space is
Answer:
The movement is called revolution when a body travels around another body in space.
Explanation:
The movement is called revolution when a body travels around another body in space. It is different from rotation which is a phenomenon where a body revolves around its own axis. For example, we can assume the motion of earth as revolution when it travels around the sun and completes one complete revolution in one year, on the other hand when it moves around its own axis the day and night transformation happens. We can also take the example of moon which revolves around the earth and many other planets which revolve around the sun. So it is very easy to understand the concept of revolution.
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An unlabeled hierarchical diagram of various astronomical bodies is shown below. The labels A, B, C, and D can be used to represent the Milky Way, Earth, universe, sun, and solar system.
Part 1: Which four astronomical bodies would you choose to represent the four labels in the diagram?
Part 2: Which astronomical body, other than the ones given, could also represent the label D?
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who was evolution established by
To which phylum would a flowering plant that produces seeds belong?
A. Bryophyta B. Lycophyta C. Anthophyta D. Ginkgophyta
give 3 examples where kinetic and potential energy is transformed into each other both ways.
Prokaryotes that live in almost every habitat are...
From the images, what can you infer about the wings of the bat and the butterfly? They have a similar structure but perform a different function. They have a similar structure and perform a similar function. They have a different structure and perform a different function. They have a different structure but perform a similar function.
Answer:
They have a different structure but perform a similar function
an object in an electrical circuit resists the flow of energy called a
A switch
B resistor
C ohm
D current
What are the main necessary qualities for manned vehicles of the space program? Select all that apply.
durability
reliability
efficiency
miniaturization
The answers are actually reliability and miniaturization. Brainliest please.
Answer:
The answers are actually:
Durability
Reliabilty
Explanation:
I answered these and i got it right.
how to differentiate between ectoplasm, endoplasm and cytoplasm?
Evolution never occurs in a straight line. There are always branches and nodes that can be seen along the way. Based on the image, which two statements are true?
1)All organisms have had one common ancestor in the past.
2)Chimpanzees are more evolved than all other organisms.
3)Gorillas share an extinct ancestor with bonobos.
4)Humans and chimpanzees are equally evolved.
5)Orangutans are unrelated to gorillas or bonobos.
Ans.
In a evolutionary or phylogenetic tree, the nodes represent common ancestral species of the descendants, which are represented by the tips of branches, arising from the nodes.
According to the given evolutionary tree, all organisms are evolved from a common ancestor, represented by the last node, which was present about 13 million years ago. Hence, the option 1). is correct.
The second last node is showing a common ancestor to gorilla, chimpanzee, bonobo, and human, which was evolved to different species about 6 million years ago. Hence, the option 3). is correct.
Thus, the correct options are 'option (1). and option (2).'
All organisms have had one common ancestor in the past. This statement reflects the concept of universal common ancestry in evolutionary biology. Gorillas share an extinct ancestor with bonobos. This statement suggests that gorillas and bonobos, two different species of primates, share a common ancestor in their evolutionary history.
The correct option is 1 and 3.
Over vast periods of time, species diverged and branched off from this common ancestral lineage, leading to the diversity of life we see today. The branching or divergence of their lineages from this common ancestor resulted in the separate evolution of gorillas and bonobos as distinct species.
Evolution does not work on a linear scale where one species is more "evolved" than others. Each species has its own unique evolutionary history and adaptations. Chimpanzees are more closely related to humans than they are to some other organisms, but this does not imply a hierarchy of evolutionary advancement. Evolutionary history does not involve a concept of species being equally evolved. Humans and chimpanzees share a common ancestor but have followed different evolutionary paths, resulting in distinct species. Orangutans, gorillas, and bonobos are all primates and share a common ancestor further back in evolutionary history. They are related, but they belong to different branches of the primate family tree, with each species having its own evolutionary lineage.
Hence , 1 and 3 are the correct option
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Inorganic fertilizers have a positive effect on agricultural crops but can adversely affect surrounding areas. What is a negative result of increased inorganic fertitizer run-off into ponds and lakes?
Inorganic fertilizers have a positive effect on agricultural crops but can adversely affect the surrounding areas and show a negative result by running off into ponds and lakes. The fertilizers are toxic and can pollute the water bodies.
What are inorganic fertilizers?Fertilizers are the chemicals which are added to the soil to increase the fertility of soil. Chemical fertilizers overuse can contribute to both the soil acidification and the soil crust, thus reducing the content of organic matter, humus, beneficial species in the soil and also reduces the plant growth, alters the pH of soil, growth of pests, and even lead to the release of many greenhouse gases.
Too much use of fertilizers can kill the plants and the excess amount of fertilizers can runoff into waterbodies causing toxic algal blooms to develop which are harmful to aquatic life and other living organisms. Excess fertilizer runoff from agricultural lands can also contribute to aquatic “dead zones” in coastal areas.
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Beth learned in her science class that white blood cells in the human body capture harmful material by engulfing them. Then they digest them using enzymes, thus protecting the body from infection. Which eukaryote has a similar mode of nutrition?
Answer:
The Answer Is C): Amoeba
Explanation:
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Amoebas are eukaryotic microorganisms that have a similar mode of nutrition to the process described for white blood cells. They capture and engulf food particles, such as bacteria or small organic particles, through a process called phagocytosis.
After engulfing the food particle, amoebas form a food vacuole around it. Within the food vacuole, enzymes are secreted to digest the captured material, allowing the amoeba to obtain nutrients and energy from the ingested material.
This process of engulfing and digesting food is known as phagocytic nutrition and is a characteristic feature of certain eukaryotic organisms like amoebas.
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which biome has multistory communities?
Rain Forest (:
(Novanet)
The correct answer is rain forest.
The tropical rainforest refers to a forest of tall trees in the warm regions of the planet. An average of 50 to 260 inches of rain falls annually. Rainforests come under the tropical wet climate group.
Rainforests cover about 6 percent of the Earth's land surface. The tropical rainforests generate about 40 percent of the Earth's oxygen. The rainforests are biomes that comprise of various communities within them. A community refers to a naturally taking place group of local animals, plants, and other species, which are associating in a specific habitat.
During a total solar eclipse, you observe a red ring in the sky. Which part of the Sun are you seeing?
a)corona
b)photosphere
c)chromosphere
d)radiative zone
Which statement is true of Y chromosomes?
Answer: Only men have them
Explanation: just got it right on A p E x
describe the interior of the rats stomach
in most animal cells a complex Network of proteins provides
which of the following
Answer:
Option D, All of the above
Explanation:
Complete Questions -
In most animal cells a complex Network of proteins provides which of the following -
A.Organization B.Movement C.Shape D. All of the above
Solution -
Proteins are complex molecule that plays a critical role in the body. They are responsible for defining the shape of the body and regulate its function and structure. Based on their functions, proteins are of different types such as antibody ( protective proteins), enzyme (catalyst), messenger ( transmit signals to co-ordinate between functioning of cells, tissues and organs), structural protein (that provide structure to allow a body to move) and transport protein (transport essential molecules with in the cell and through out the body)
Thus, option D is correct
Comparisons of cranial capacity between A. africanus and the later species H. erectus and A. boisei show that H. erectus had much larger brains, while A. boisei had only slightly larger brains, than A. africanus. There is evidence that A. africanus and H. erectus used tools, though the tools made by H. erectus required more skill and planning to craft. How do you think the toolmaking abilities of A. boisei would have compared? (A)A. boisei would have had very little ability to make tools, unlike the other two hominids.(B) A. boisei would have been able to make more advanced tools than the other two hominids. (C)A. boisei would have been able to make tools that were less advanced than H. erectus. (D)A. boisei would have made tools that were less advanced than those made by A. africanus.
Answer:
A. boisei would have been able to make tools that were less advanced than H. erectus.
Explanation:
because im him
Water harvesting, the collection of rainfall and run off for future use, has been practiced for thousands of years; but in some regions where it was previously used it has been forgotten. In countries facing huge problems with land erosion due to runoff, governments have been encouraging the implementation of this technique. The implementation is important for more than prevention of water erosion. What other benefit might water harvesting have in these areasscience
Answer:
To provide clean drinking water in areas where there is no ground water or it is contaminated.
Explanation:
Rainwater can be reused in a number of ways where with a rainwater catchment system it is entirely possible to reduce the use of drinking water as well as expenses, not to mention flood reduction, flooding, future water rationing, and still help the environment with that.
In addition to allowing the drinking water economy, rainwater capture is extremely important in places where water is contaminated or drought punishes almost the whole year and water scarcity ends up being frequent as is the case of countries like Africa for example.
Which organelles store food and other materials needed by the cell?
vacuoles
ribosomes
chloroplasts
mitochondria
The vacuoles are the organelles that store food and other materials required by the cell. They maintain pressure within the cell and support its structure besides storing substances. Other organelles have differing functions such as protein production, photosynthesis, and energy production.
Explanation:The organelles that store food and other materials needed by the cell are the vacuoles. Located mainly in plant cells, vacuoles are large, fluid-filled organelles that store substances like water, nutrients, or waste products. In addition to storing substances, they also contribute to many other functions within the cell such as maintaining pressure within the cell which helps the plant cell keep its structure.
It's worth noting that other organelles like ribosomes, chloroplasts, and mitochondria also play significant roles within cells. Ribosomes produce proteins, chloroplasts are involved in photosynthesis in plant cells, and mitochondria are responsible for producing energy in the cell through the process of cellular respiration.
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under ideal conditions, bacteria have a generation time of about 20 minutes. Humans have a generation time of about 20 years. Which would you expect to evolve faster? Why?
Bacteria would be expected to evolve faster than humans due to their significantly shorter generation time. This allows for frequent genetic recombination and mutation, resulting in rapid adaptation to environmental changes.
Explanation:Under ideal conditions, bacteria, such as Escherichia coli, can have a generation time as short as 20 minutes due to binary fission. This rapid reproduction, coupled with mechanisms of genetic recombination and high rates of mutation, results in the rapid evolution of bacteria. They can respond to environmental changes, such as the introduction of an antibiotic, very swiftly.
On the other hand, humans, as eukaryotic organisms, have a typical generation time of about 20 years. The significantly longer generation time in humans slows the pace of evolution considerably when compared to bacteria.
Therefore, under ideal conditions, we would expect bacteria to evolve faster than humans due to their shorter generation time, allowing for more frequent genetic recombination and mutation.
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What happens to the recessive allele in a heterozygous offspring
In a heterozygous offspring, the recessive allele becomes latent. It can be passed on to future generations and may show up in the phenotype if an offspring is homozygous recessive.
Explanation:In a heterozygous offspring, the recessive allele essentially becomes 'latent', meaning it is present but not expressed in the phenotype. This occurs due to Mendel's law of dominance which states that in a heterozygote, the dominant allele masks the effect of the recessive allele. The recessive allele will only be observable in offspring that are homozygous recessive in nature.
When parents with contrasting dominant and recessive traits reproduce, their offspring will mostly be heterozygous but will express the dominant trait in their phenotype. However, if these heterozygous offspring reproduce, the recessive trait can reappear in the next generation. This happens due to random segregation during formation of gametes where each allele from a pair has an equal chance of being passed on to the offspring.
The recessive trait can appear in the third generation with a 25% probability when heterozygous parents reproduce. This is because there's a 1 in 4 chance of getting a homozygous recessive offspring - that is, an offspring that inherits the recessive allele from both parents.
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Which of the following is the main evidence of life in the early universe?
Question 1 options:
dinosaur fossils
rock layering
plant remains
cyanobacteria
5.17 Unit Test: History of Life on Earth, Part 1 Pool 2
Question 2 (3 points)
Question 2 Unsaved
Which of the following would have resulted from the functions of prokaryotes on early Earth?
Question 2 options:
Earth's oceans grew larger
less oxygen gas became present in the atmosphere
less carbon became present in Earth's soil
more oxygen gas became present in the atmosphere
5.17 Unit Test: History of Life on Earth, Part 1 Pool 3
Question 3 (3 points)
Question 3 Unsaved
Which of the following was most likely not present in creating the amino acids of early Earth's waters of the past?
Question 3 options:
sulfur
nitrogen
hydrogen
ammonia
5.17 Unit Test: History of Life on Earth, Part 1 Pool 4
Question 4 (3 points)
Question 4 Unsaved
Which of the following is used as evidence in supporting the idea that life changes over time?
Question 4 options:
the big bang theory
the existence of homologous structures
the similarities in body systems such as the nervous and circulatory systems
the time period in which an embryo develops
5.17 Unit Test: History of Life on Earth, Part 1 Pool 5
Question 5 (3 points)
Question 5 Unsaved
The diagram shows embryo development of four different animals. How is this evidence used to suggest that life changes over time?
History of Life on Earth
Question 5 options:
Late-stage embryonic development illustrates how acquired characteristics have caused these species to become more differentiated over time.
The DNA of all these life forms begins exactly the same and then changes over time as it replicates to produce the organisms different traits.
These stages indicate that animals within a species must have changed over time.
Striking similarities at early developmental stages is evidence that they came from a common ancestor.
5.17 Unit Test: History of Life on Earth, Part 1 Pool 6
Question 6 (3 points)
Question 6 Unsaved
Which of the following describes how homologous structures provide evidence to support that life changes over time?
Question 6 options:
some animals exhibit similar structures, possibly due to a common ancestor
some animals exhibit similar stages of embryonic development
some animals exhibit structures that are no longer used for any purpose
some fossils exhibit similar biological proteins
Question 7 (3 points)
Question 7 Unsaved
How can these forelimbs explain how life changes over time?
History of Life on Earth
Question 7 options:
These illustrations show the progressive development of the forelimb in a species over time, one example of how life has changed over time.
These illustrations show the homologous forelimbs of four different species with enough similarities to suggest all had a common ancestor.
The illustrations show the vestigial structures of four different species that once had a function in an ancestral organism but no longer have a function today.
These illustrations show the variety of bone structures that exist among different species and how life has changed over time as new species develop.
Answer:
number 2 is D im pretty sure
Explanation:
Which of the following is NOT a function of Earth's atmosphere?
A. provides carbon dioxide for plants
B. provides oxygen for plants and animals
C. keeps volcanoes from erupting too much
D. keeps Earth's surface at a comfortable temperature
The function of the earth's atmosphere does not involve the volcanoes that erupted so much.
The following should be the function of the earth atmosphere:
It gives carbon dioxide to plants. It gives oxygen to plants & animals. The surface of the earth should be at the temperature i.e. comfort.Therefore we can conclude that the function of the earth's atmosphere does not involve the volcanoes that erupted so much.
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What is a common issue with both tidal power and OTEC?
Maintenance costs due to salt water corrosion
Necessary temperature differences in the water
Having to construct a dam
All of the above
The answer should be the first option
Maintenance costs due to salt water corrosion
Understand how and why heredity increases the diversity among organisms