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gregori [183]
3 years ago
13

What part of the ice cores tells us what the atmosphere was like in the past?

Biology
1 answer:
Kitty [74]3 years ago
6 0

Answer:

C

Explanation:

I took the test a few days ago. :)

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I need help on this question in biology and biology is hard and confusing
Yuliya22 [10]

Answer:

b. the new species must be unable to breed with the original species.

Explanation:

By definition, species are defined as groups of similar organisms that can live and breed freely. This means that individuals in that species can interbreed and produce viable, fertile offspring. However, two different species cannot interbreed to produce fertile offspring due to biological barriers known as mechanisms of reproduction isolation.

These barriers are broadly classified as pre and postzygotic. Prezygotic barriers include the following:

  1. Habitat isolation: Two species occupy entirely different and distant habitats.
  2. Temporal isolation: Two species  procreate at different times of the year.
  3. Behavioral isolation: Two species exhibit different mating behaviors.
  4. Gametic isolation: The gametes of the two species cannot fertilize.
  5. Mechanical isolation

Speciation, the production of an entirely new species, requires a maintenance of genetic diversity. Therefore, the new and original species cannot interbreed as this would limit the gene pool and decrease genetic variations.

4 0
3 years ago
Read 2 more answers
What did the phase-contrast microscope allow scientists to study?
kvv77 [185]
Viruses research study related
3 0
3 years ago
Which statement describes an advantage of using biometrics for physical access control?
Soloha48 [4]

Answer: a.The individual always has the biometric in their possession.

Explanation:

Biometrics is a term that is used for the technology that is used to measure the bodily features and making a calculation on that basis. It is a method that can be used for the purpose of identification and authentication for the purpose of access control.

Among the given options, a.The individual always has the biometric in their possession. is the correct option. This is because of the fact that biometric measurements can be based upon physical characteristics such as fingerprints, retinal scans, and facial recognition. These features are common and unique to every human being. Hence, biometric system can be advantageous for physical access control.

8 0
3 years ago
If the order of base pairs in a DNA molecule is changed, what might occur?
tatuchka [14]

Answer:

When you change the order of the base pairs in an organism, that is called a mutation. There are three types of mutations: a deletion, an addition, and a substitution. In a deletion, one of the three bases in a codon is pulled out, or deleted.

Explanation:

6 0
2 years ago
One technique used to check ecosystem health and biodiversity of an ecosystem is to monitor populations of native species and in
vodomira [7]

Threats to Native Wildlife. Invasive species cause harm to wildlife in many ways. When a new and aggressive species is introduced into an ecosystem, it may not have any natural predators or controls. ... Invasive species can also alter the abundance or diversity of species that are important habitat for native wildlife.

8 0
4 years ago
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