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exis [7]
3 years ago
12

Which of the following statements about wings is true?

Biology
1 answer:
svp [43]3 years ago
8 0

Answer:

Option (A), (B), (D) and (E).

Explanation:

Wings are present in class Aves that helps the birds to fly. Wings provides the means of locomotion and also allow the sexual selection in case of birds. The wings are the modified forelimb of birds.

The bats wings are ancestral whereas birds have derived wings. Birds and reptiles (turtle) mostly have ancestor with wings. On the basis of wings we cannot construct a phylogeny tree. Hence, wings are not the ideal characteristics for the construction of a phylogenetic tree.

Thus, the correct answer is option (A), (B), (D) and (E).

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You spot a sea snake while you are in a boat on the Atlantic Ocean and remark about how similar it looks to a snake that lives i
lukranit [14]

Answer:

c) Habitat isolation

Explanation:

Habitat isolation is a mechanism that prevents species from mating even if they don't have reproductive barriers. The differences in the habitat types may thus be sufficient to develop reproductive isolation between two (or more) populations

4 0
3 years ago
which of the following steps is an important part of the process by which energy guides human to a sustainable future A) behavio
Tom [10]
Let's think of it like this.  We have an energy crisis, but how can we solve it?  There are three steps.  First, we need to recognize that we HAVE a problem that needs to be fixed.  Then, we need to determine what's causing the problem.  Finally, we need to change how we act in order to solve the problem.  Now, let's look at the options.

Is A correct, leaving our behavior unchanged?  NO: if we know the cause of the problem, we still need to solve it!  What about B: the problems are ignored?  NO: you can't solve a problem unless you know it's a problem.  C?  NO: to solve a problem, you need to find out what's causing it.  Finally, let's look at D: behavior is changed after cause is identified.  This is correct: not only do we know why it's happening, but we're fixing it!

Answer: D
8 0
3 years ago
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A student planted bean seeds in 3 identical pots. She labeled the pots A, B, and C and she gave all of them 125mL of water. She
madam [21]

Answer:

She places one pot in a sunny window, one under normal classroom lights, and one in a dark room.

Explanation:

An independent variable is the only thing that changes in a proper experiment.

6 0
3 years ago
Which category includes the terms carbon dioxide, methane, nitrous oxide, and CFCs?
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Explanation:

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Answer:

A

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