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Alina [70]
3 years ago
13

what role does molecular evidence play in determining how closely two species are related to each other

Biology
1 answer:
qwelly [4]3 years ago
5 0
Recall the endosymbiosis hypothesis and recall endosymbiosis. Remember that the very first cell was a prokaryotic cell. Which engulfed chloroplast precursors and mitochondria. We all come from these cells. And how we evolved over time shows the relationship. I'm a bio major hope I helped
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Which one of the codons below would stop the translation of mRNA by ribosomal subunits?
Ostrovityanka [42]

Answer:

The correct option is D) UAG, UAA, UGA

Explanation:

The amino acid sequencing code or mRNA code contains specific codes which start and stop the process of translation at the right time. If the stop codon were not present then the ribosomal machinery would have made faulty proteins. If the stop codons are not at the right place, then it results in the production of faulty proteins. The stop codons which terminate the process of translation are UAG, UAA and UGA.

5 0
3 years ago
Why do leaves appear green?
s2008m [1.1K]

<u>Answer:</u>

The correct answer option is B. Green wavelengths are the least used in photosynthesis.

<u>Explanation:</u>

Plants have a pigment in them called as chlorophyll. This chlorophyll is able to absorb only certain wavelengths of the light within the light spectrum.

From that visible light spectrum, chlorophyll is only able to absorb light of red and blue wavelength. The green light is not absorbed by the by chlorophyll as it is reflected back.

Therefore, this reflection of green light makes the leaves to appear green.

6 0
3 years ago
Read 2 more answers
How do the lymph and immune systems depend on the cardiovascular system?
kari74 [83]
The correct option is C.
The heart is part of the cardiovascular system. The heart pump the blood round the body several times in a day. The blood is made up of several types of cells which carry out specific function in the body, these include the white blood cells which serves as soldiers of the body. The lymph refers to the fluid that circulate throughout the lymphatic system. Both the blood and the lymph are carried round the body by the cardiovascular system during the process of circulation.<span />
7 0
3 years ago
Which of the following describes the effect of global climate change on biodiversity: Rising ocean water temperatures have incre
jasenka [17]

Answer:

Warm temperatures and more frequent dry periods have stressed frog species such as the coqui making them more vulnerable to a lethal fungal infection thus reducing their populations.

Explanation:

Rise in temperature, flooding as well as drought affect biodiversity. As climate changes, there is usually an alteration of temperature as well as weather patterns, the impact is felt by

plant and animal life. According to

Scientists, there is an expectation that

number and range of species, which are regarded as biodiversity will experience declination with greatly increase in temperatures

6 0
3 years ago
At what angle is earths axis tilted in relation to the sun?
maxonik [38]
23.5 degrees relative
6 0
3 years ago
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