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Anni [7]
3 years ago
9

If there was a sudden drop in temperature after the evolution of the first living cells, predict how that might have affected th

e changes in the atmosphere and the evolution of cyanobacteria and other autotrophs.
Biology
1 answer:
fgiga [73]3 years ago
8 0
If there was a sudden drop in temperature after the evolution of the first living cells, the rate of fermentation would drop due to the temperature. My prediction would have to include the data, which is on the graph. The question does not include a temperature to base my hypothesis on so I would have to conclude that if the temperature suddenly dropped to 35ºC to -20ºC, that the initial cells would die, and that the atmosphere and the evolution of cyanobacteria would change drastically.
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The distant ancestors of tigers may have had bodies without stripes. Use the theory of natural selection to explain how tigers m
Degger [83]

The tigers have stripes because it is advantageous for them because they are an ambush predator and need good camouflage. The stripes are excellent camouflage for places that are shady, so the tiger can easily get close to its prey and attack it.

There's a very big possibility that the distant ancestors of the tigers did not had stripes. The reasons for that are different environment, but also that the stripes are actually a very rare type of pattern among the felidae family members.

As the environment started changing, the tigers needed to adapt to it, so they also needed a different camouflage. As some tigers in the population started to develop stripes, they were better hunters, thus were stronger, and seen as suitable mates for the females, as it would provide an offspring with the advantage that the male tiger has. Through this selection in the breeding process of mates that have advantageous camouflage patterns, the stripes were becoming more and more present, to the point where they totally pushed aside and eliminated the previously dominant camouflage pattern.

8 0
3 years ago
Cells must remain small because? Why?
goldenfox [79]

Answer:

they have to remain small because nutrients go around faster around the cell then bigger cells

Explanation:

hopefully i explained it well

3 0
3 years ago
what sentence best supports the statement that hormones are involved in the regulation of homeostasis?
nadya68 [22]

Answer:

Answer optino C.

Explanation:

the hormone erythroprotein increases the production of red blood cells when oxygen levels are low best supports teh statement taht hormones are involved in the regulation of homesstasis.

4 0
3 years ago
Pancreatic cells, which secrete a large amount of digestive enzymes, are labeled with radioactive leucine and then chased for se
stiv31 [10]

Answer:

On the exterior of the cell.

Explanation:

The black spots as mentioned in the given case would appear on the exterior of the cell after three hours, which suggests that the proteins or the enzymes had been discharged from the pancreatic cell. The mentioned method of labeling and then chasing the component is known as a pulse-chase experiment.  

In this experiment, the labeled compounds are used to follow the dynamics of cellular pathways and procedures. The molecules in a cell get produced and degraded spontaneously at various rates. These changes in the localization of the molecule and its expression levels with time can be determined by exposing or pulsing cells to a labeled compound.  

After this the cells are exposed sequentially to the same compound unlabeled, the process is termed as the chase. The compounds are generally labeled with fluorescent dyes or radioisotopes.  

3 0
3 years ago
The dark reaction of photosynthesis is also called the
mr_godi [17]
<span> It is called the Calvin Benison Cycle</span>
5 0
3 years ago
Read 2 more answers
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