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nydimaria [60]
3 years ago
9

A bat wing, an alligator leg, and a human arm are homologous structures. Which fact about those structures best supports one asp

ect of theory of evolution
Biology
2 answers:
valentinak56 [21]3 years ago
7 0

Answer:

The correct answer is descent from a common ancestor.

Explanation:

Homologous structures are the structure which is similar in appearance but perform different functions in a different organism.

The wing of a bat, leg of an alligator and arm of a human, they all look similar in appearance with same type and number of bones but they all perform different functions in them.

The same type and number of bones show that they all have come from the same structure of the last common ancestor or their ancestor was common. This type of evolution is called divergence evolution and provides a piece of evidence to the theory of evolution given by Charles Darwin that "all species arises from same ancient common ancestor also called descent from a common ancestor". This proves that the evolutionary history of life forms a branching tree.

Thus, descent from a common ancestor is the correct answer.

miskamm [114]3 years ago
6 0
Although a bat's wing, an alligator's leg and a human arm function differently, they all have similar structures in common. All have five digits and most likely the same number of bones within them.

This signifies that they all had similar origins in evolution.

Hope that helps!
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Answer:

a.) freshwater plants may be rooted here--- Shore

b.) littoral zone--- it is the region of a lake or pond that is nearest to the shore

c.) limnetic zone--- A region of open water in lakes and ponds.

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e.) extends to edge of the continental shelf--- Neretic Zone

f.) generally low nutrient levels

g.) light penetrates here--- Photic Zone

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i.) benthic zone--- this is purely known as the bottom of the lakes or oceans

6 0
2 years ago
How does crossing over add to the genetic diversity of sexually reproducing organisms?
neonofarm [45]
<span>Crossover is the first way that genes are shuffled to give rise to genetic diversity. Crossover takes place in sexual reproduction. Chromosomes line up side by side and break off pieces of themselves, then trade those pieces with each other. When they break at the same place (locus) in the sequence of base pairs, the result is an exchange of genes called genetic recombination. That is the normal way for crossover to occur. Genetic recombination ensures that the daughter cells produced have a different genetic makeup from the parent cell and thus diversity is created.</span>
8 0
3 years ago
After a natural disaster such as a hurricane or tornado, what will happen in the damaged ecosystem?
Lyrx [107]

Answer:

C

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8 0
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the salivary glands, stomach, and pancreas secrete ____________ enzymes to break down triglycerides into monoglycerides, fatty a
likoan [24]

The salivary glands, stomach, and pancreas secrete<u> lipase enzymes</u> to break down triglycerides into monoglycerides, fatty acids, and glycerol.

Lipases are a set of water-soluble enzymes that hydrolyze substrates such as triglycerides and phospholipids, have a similar structure and are essential in the metabolism of lipoproteins and lipids.

That is, the function of lipase enzymes is to hydrolyze triglycerides to generate diglycerides, monoglycerides, fatty acids and glycerol.

<u>About lipase enzymes</u>:

  • It acts on the neutral fats in the diet, splitting them into triglycerides or diglycerides and these to monoglyceride, which is the most easily absorbed fatty compound.

  • The action of lipase is much more manifest on triglyceride, and it is also much faster the higher the molecular weight of the fatty acid present.

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Therefore, we can conclude that the salivary glands, stomach, and pancreas secrete lipase enzymes to break down triglycerides into monoglycerides, fatty acids, and glycerol.

Learn more here: brainly.com/question/15737562

8 0
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