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MAXImum [283]
3 years ago
6

During cell reproduction, chromatin fibers coil up into structures called

Biology
1 answer:
Naya [18.7K]3 years ago
8 0
It is a. chromosomes
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Indicate whether each of the following descriptions better applies to COPI- (1), COPII- (2), or clathrin- (3) coated vesicles. Y
Nostrana [21]

Answer:

3212

Explanation:

Transport vesicles are vesicles that function to carry molecules from one cellular compartment to another. The coat protein complexes I and II (COPI and COPII) are conserved pathways that transport proteins from the endoplasmic reticulum to the Golgi apparatus. Moreover, clathrin is a protein implicated in the formation of coated vesicles. The ADP-ribosylation factor GTPase activating (Arf GAP) proteins play a major role in Arf signaling pathways, which are responsible for uncoating of the COPI coat. On the other hand, COPII vesicles are known to retain their coats until they are recognized by tethering complexes, and whose formation is regulated by the GDP-GTP cycle of the small GTPase Sar1. Finally, the 70-kDa heat shock proteins (HSP70) are chaperones which function as uncoating ATPases to remove clathrin from coated vesicles after endocytosis.

5 0
3 years ago
The illustration shows the worldwide distribution of killer whales, or orcas. The dark areas indicate regions where the whales a
const2013 [10]
<span>Killer whales are much more common in highly productive cold water areas. These include the Atlantic, the Pacific Northwest, and the higher latitudes of the Southern Ocean.</span>
7 0
3 years ago
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The theory of evolution that states that a species evolved in spurts of rapid change and then goes through periods of no change
notsponge [240]
I think Punctuated Equallibruim is your answer
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3 years ago
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The gut of ruminants contains a highly diverse mixture of microbes responsible for digesting a wide variety of complex plant mol
podryga [215]
<h2>Microbes and ruminants relation</h2>

Explanation:

The mixture of microbes allows the host animal to produce a much wider variety of digestive enzymes, far more than the host could encode in their own genome

  • The microbes in the gut of ruminants include bacteria,fungi and protozoa
  • These microbes helps the ruminant animals to digest food,without the microbes these animals would die
  • The microbes break down feed to produce volatile fatty acids, which are used by the cow(ruminant animal) as energy for maintenance and milk production
6 0
3 years ago
What type of stream valley forms in mountainous areas?
Alex73 [517]

The type of stream valley likely to form in a mountainous area is a V- shaped valley. This is a narrow valley that has a profile giving the impression of the letter V. This kind of valley is characterized by steeply sloping sides. It results from a stream eroding downward, a process referred to as downcutting. V - shaped valleys form in mountains or highland areas where streams are in their youthful stage and are flowing rapidly down steep slopes.

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3 years ago
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