BIOLOGY HIGH SCHOOL

Who observed that some species possess vestigial structures, such as finger bones in the flippers of manatees and similar bones in whale flippers?

Answers

Answer 1
Answer:

Answer:

My gut answer would be Charles Darwin

Explanation:
Answer 2
Answer: It was Charles Darwin

Related Questions

a sample of food containing one type of a large molecule was treated with a specific digestive enzyme . nutrient test performed on the resulting products showed the presence of simple sigars based on these test results the original large molecules contained in the sample were molecules of
Read the sentence.Mom brought her dog, AN OLD BLACK POODLE, to Grandpa’s birthday party. AN OLD BLACK POODLE is what kind of phrase? A) appositive phrase B) infinitive phrase C) verb phrase D) gerund phrase
In a certain plant, yellow leaves are dominant (Y) and red leaves are recessive (y). A plant with genotype Yy and a plant with Yy are crossed. If they have four offspring, how many would you predict would have red leaves?
Similarities between mitosis and meiosis (as many as possible, I really need help)
Which of the following techniques of microscopy allows the observation of living cells (i.e. NOT fixed cells) ?A) scanning electron microscopy B) fluorescent microscopy C) transmission electron microscopy D) There are no microscopy techniques suitable for the observation of living cells

Is the following sentence true or false? The composition of the atmosphere changes every few kilometers as you move away from earth.

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This sentence is True because the air thins throughout the atmosphere.

The development of some organisms, like sea turtles, are affected by the temperature at which the eggs are incubated. Typically, cooler temperatures produce more males, and warmer temperatures produce more females. How might climate change affect the reproductive success of sea turtles?Reproductive success will increase, because there will be more nesting ground available due to sea level rises.

Reproductive success will increase, because there will be more females to lay eggs.

Reproductive success will decrease, because there will be skewed numbers of males and females.

Reproductive success will decrease, because there will be longer migration routes due to sea level rises.

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Answer:

The correct answer would be Reproductive success will decrease, because there will be skewed numbers of males and females.

Explanation:

Sea turtles incubate their eggs in the sand at nesting beaches. In cooler temperatures produce more males, and warmer temperatures produce more females.

If the temperature rise will be in the climate then there will be fewer males in comparison to the females which can lead to a decrease in reproductive success. If there will be a fall in temperature than there will be fewer females in comparison to males which also led to a decrease in reproduction success.

Thus, the correct answer is the third statement.
Reproductive success will decrease as there will be a skewed number of males and females.

The process of natural selection is based on the assumption that:(1) environmental changes will cause changes in body structure in individuals
(2) most changes from generation to generation are the result of mutations
(3) part of the population of organisms always remains stable
(4) different traits inherited by offspring have different survival value

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Answer:

Option B, most changes from generation to generation are the result of mutations

Explanation:

Through the process of evolution, an individual changes from one generation to other generation. These variations are caused by genetic changes.

Genetic variations are caused by -

a) Genetic mutation

b) genetic recombination

Genetic variation leads to alteration of gene or protein function due to which differences traits arises in an organisms. Thus , it can be said that genetic mutation brings variation in structure and thus leads to evolution of any species.

As long as  generations of individuals with the newly developed trait continues to mate and reproduce, new trait becomes  common in a population.

Hence, option B is correct
4 God I hate how they make u do 20 characters

Zara investigated how giving plants different amounts of water affected their growth. She grew some seedlings in pots and watered them each day. She measured the height of each seedling on day 1 and on day 7. The table shows her results.

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Explanation:

 

 

CAMBRIDGE LOWER SECONDARY SCIENCE 9: END-OF-UNIT TEST

Cambridge Lower Secondary Science 9 – Mary Jones, Diane Fellowes-Freeman and Michael Smyth © Cambridge University Press 2021

 

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Name

 

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Date

 

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Disclaimer:Thistestandmarkschemehavebeenwrittenbytheauthors.

End-of-unit test

Unit 4

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Zara investigated how giving plants different amounts of water affected their growth.She grew some seedlings in pots and watered them each day.She measured the height 

Which molecule in the chloroplast of a plant cell first captures light energy from sunlight? A. glucose B. carbon dioxide C.chlorophyll D. adenosine triphosphate

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The molecule called chlorophyll which is present in the chloroplast of the plant cell captures the sunlight first. Thus, the answer is letter C. This molecule is responsible for the green color of leaves. This absorbs sunlight to use its energy in synthesizing carbohydrates. 
The molecule in the chloroplast of a plane cell that first captures light energy from sunlight is C. Chlorophyll.

Belinda and her husband, alan, are both 40 pounds overweight. they decide to change their lifestyle, increasing the amount of exercise they do and reducing their calorie intake by 20 percent. they both lost the 40 pounds, but three years later, alan has put all of the weight back on while belinda has regained only 15 pounds. what is the most likely explanation?

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The correct answer is that "Alan has a set point closer to his original weight".

A set point in weight refers to the weight in one's body, in which the body would be more likely to stay in and the body favors. Like in the given situation, Belinda and Alan both lost weight, yet Alan retained the 40 pounds he has lost after three years because of his weight's set point.
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The scientific name for a white oak is Quercus alba; the scientific name for a red oak is Quercus rubra. What does this tell you about the organism? A. Red oaks are grouped in the genus alba. B. White oaks are grouped in the genus Quercus. C. White oaks are grouped in the same species category as red oaks. D. Red oaks are grouped in the species Quercus. Is it B????
How does the motion of particles in a gas change as the gas cools?They move more slowly. They move in a more circular pattern. They move faster. They move more randomly.