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Veronika [31]
3 years ago
5

Some species of stick insects have wings, others are wingless. recent research indicates that wings have been gained and lost se

veral times during the evolutionary history of stick insects. for the six species on the evolutionary tree, which hypothesis require a lower total number of wing gains and wing losses?
Biology
1 answer:
adelina 88 [10]3 years ago
5 0

Answer:

It is a hypothesis that explains the origin of evolutionary reversions.

Explanation:

A phylogenetic tree may indicate that genes required for forming anatomical structures such as wings are not completely lost and they are activated many times during the evolution.

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Ganezh [65]

Answer:

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aldosterone causes the kidneys to reabsorb water

regulates the body using hormones

Explanation:

if i pick all of them i see which ones are right and which ones are wrong, your welcome :)

5 0
3 years ago
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An alternative to a controlled experiment would be a(n). a.. quantitative study. b.. correlation study. c.. field study. d.. a l
butalik [34]
<span>Controlled experiment is an experiment done under controlled conditions in which only one variable at a time is changed in order to isolate the results. An alternative to a controlled experiment would be a correlation study. A correlation study is a research method in which two variables are compared (what are the similarities and the difference between them). So, correlation study is a type of controlled experiment in which ove variable is changed and the dependence with another variable is analyzed.</span><span />
3 0
3 years ago
Whales have what seem like remnants of a pelvis and femur, as shown here. mc013-1.jpg What are these structures an example of?
Ainat [17]

Answer : Option C) vestigial structures.

Explanation : In the example of whales which is displaying the remnants of the pelvis and femur bones it seems to be the example of vestigial structures.

As vestigial structures are those anatomical feature which no longer seems to have a purpose in the current form of an organism of the given species.

7 0
3 years ago
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John is a smoker. he has at least doubled risk of which mental disorder?
Dafna11 [192]
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5 0
3 years ago
In writing On the Origin of Species, Darwin synthesized ideas from other publications, as well as observations he made while voy
algol [13]

Answer:

Principles of Geology

Explanation:

J. Henslow gifted Darwin the first volume of Principles of Geology, written by Charles Lyell. The book explains about the old age of the earth. Accordingly, the slow rate of several geological processes suggests that the earth is very old.

Darwin read the book as the ship was crossing the Atlantic and learned about geological processes occurring over the millions of years. For example, he learned that the earth's surface was not formed by some catastrophic event.

In his book, Lyell explained the slow and gradual geological processes like erosion gave rise to the vast landscapes present on the earth's surface.

Darwin compared the time taken by geological processes to form the earth's surface and reasoned if these millions of years were enough to support the evolution of species.

6 0
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