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solniwko [45]
3 years ago
7

How has artificial selection demonstrated species changing over time

Biology
1 answer:
tatyana61 [14]3 years ago
8 0

Answer:

Long before Darwin and Wallace, farmers and breeders were using the idea of selection to cause major changes in the features of their plants and animals over the course of decades. Farmers and breeders allowed only the plants and animals with desirable characteristics to reproduce, causing the evolution of farm stock. This process is called artificial selection because people (instead of nature) select which organisms get to reproduce.

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Explain to pieces of evidence that suggest humans and frogs are related
uysha [10]

Explanation:

Scientists found additional similarities between the frog genes and human genes. For instance, genes in frogs have very similar neighboring genes as humans about 90 percent of the time. In other words, the frog genome contains the same sort of “gene neighborhoods” as the human genome.

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2 years ago
What temperature does solid rock need to reach to melt and form liquid lava?
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Explanation:

 600 and 1,300 degrees Celsius 

4 0
3 years ago
State how the eye us adopted to its function
MrMuchimi
Light enters the eye through the cornea, the clear, curved layer in front of the iris and pupil. ... By changing its shape, the lens focuses light onto the retina. Through the action of small muscles (called the ciliary muscles), the lens becomes thicker to focus on nearby objects and thinner to focus on distant objects.
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3 years ago
Why would the pancreatic enzyme trypsin be non-functional if it was secreted in the stomach instead of the pancreas?
mel-nik [20]

Answer:

-Due to acidic pH of stomach.

Explanation:

Enzymes are generally made up of protein molecules and work at an optimum pH and temperature. This is because at change in pH and temperature leads to denaturation of proteins that cause change in active site of enzyme.

For trypsin, optimum pH is slightly basic as pH (7.5). So, trypsin would become non-functional at acidic pH due to denaturation and loss of active site.

Trypsin is a pancreatic enzyme that works at small intestine as pH of small intestine is slightly basic.Thus, if the trypsin was secreted in stomach instead of pancreas, it would be non-functional as stomach has acidic pH due to stomach acid.

8 0
3 years ago
Why do most biologists believe that true commensalism does not exist?
Pavlova-9 [17]

Answer:

the relationships are probably mutual or parasitic

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The argument of most scientists when it comes to commensalism is that the likelihood of a relationship between two different organisms, where one of the organisms to be completely unaffected is low. They propose that their relationship, although not obvious, is more likely to be mutualistic or parasitic at best.

3 0
3 years ago
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