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Leviafan [203]
2 years ago
8

1. Choose the graph that correctly represents the relationship of nucleotides in DNA and support

Biology
1 answer:
telo118 [61]2 years ago
8 0
Graph B, because the percentages between G and C are equal. Chargaff’s rule states that G = C and T = A. The graph correctly demonstrates this.
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What cells support the spermatogonia?
Vsevolod [243]

Answer:

Sertoli cells

Explanation:

The Sertoli cells nourish and protect the developing sperm cells, and spermatogenesis—the developmental pathway from germ cell to mature sperm—occurs in the recesses of the Sertoli cells (Figure 19.17)

8 0
3 years ago
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Even when asymptomatic, _______ can still be actively multiplying and killing cells in the immune system that help fight pathoge
podryga [215]

Even when asymptomatic, the virus can still be actively multiplying and killing cells in the immune system that help fight pathogens. This is further explained below.

<h3>What is a virus?</h3>

Generally, the virus is simply defined as a virus consisting of a core of genetic information, either DNA or RNA, wrapped by a capsid, which is a protective covering formed of protein.

In conclusion,  It is possible for the virus to be actively reproducing and destroying immune cells even in the absence of any outward symptoms.

Read more about the virus

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3 0
2 years ago
The average annual precipitation worldwide must equal the quantity of water that _____.
densk [106]
<span>..has evaporated from all the water sources around the world (streams, rivers, ponds, seas, oceans etc).
It is am established fact that the quantity of water present on the Earth has remained constant from the beginning of time. At any given point in time it may exist in one of its three forms i.e.ice, water or water vapor but there is no variation in its total quantity (hydrological cycle).</span>
4 0
3 years ago
A cell is said to have reached the metaphase stage of mitosis when
Ostrovityanka [42]
When <span>the centromeres have arrived at the equatorial plate. </span>
4 0
3 years ago
Several factors can lead to speciation. Eastern and western meadowlarks are similar birds whose habitats overlap in the United S
m_a_m_a [10]

The correct answer is option C, that is, behavioral isolation.  

The phenomenon of behavioral isolation takes place when two populations possess the tendency of interbreeding, but exhibit distinctions in courtship rituals or other kinds of behavior. For example, the western and eastern meadowlarks are very identical birds whose habitat overlap in the middle of the United States.  

However, the members of the two species will not mate with each other, possibly as they use different songs in order to fascinate males. The eastern meadowlarks will not respond to the songs of western meadowlarks, and vice versa.  


5 0
3 years ago
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