Q: Which of the following is the correct equation for the process of photosynthesis?

$$6CO_2 + 6H_2O + \text{light energy} \rightarrow C_6H_{12}O_6$ + 6O_2$$

Question 1

Which of the following best describes the hierarchical organization of life from smallest to largest?

Accepted Answer

Atoms → Molecules → Organelles → Cells → Tissues → Organs → Organ Systems → Organisms → Populations → Communities → Ecosystems → Biosphere

Question 2

Which of the following is NOT a property shared by all living organisms?

Accepted Answer

Ability to move independently

Question 3

A scientist observes that a certain plant grows faster when exposed to blue light compared to red light. She hypothesizes that blue light increases the rate of photosynthesis. Which step of the scientific method should she perform next?

Accepted Answer

Test the hypothesis with an experiment

Question 4

Which of the following statements about scientific theories is TRUE?

Accepted Answer

A scientific theory is broader in scope than a hypothesis and is supported by a large body of evidence.

Question 5

Which of the following best illustrates the theme that structure and function are correlated at all levels of biological organization?

Accepted Answer

The shape of a bird’s wing enables flight.

Question 6

Which of the following is a limitation of science?

Accepted Answer

Science cannot support or falsify supernatural explanations.

Question 7

Which of the following is the correct equation for the process of photosynthesis?

Accepted Answer

$$6CO_2 + 6H_2O + 	ext{light energy} ightarrow C_6H_{12}O_6$ + 6O_2$$

Question 8

Darwin’s theory of natural selection requires which of the following conditions to be met?

Accepted Answer

Variation in traits, heritability of traits, overproduction of offspring, and differential survival and reproduction

Question 9

Which of the following is an example of discovery science?

Accepted Answer

Cataloging all the plant species in a rainforest

Question 10

Which of the following best explains why evolution is considered the unifying theme of biology?

Accepted Answer

It explains both the unity and diversity of life through descent with modification.

Question 11

A population of beetles contains both green and brown individuals. After several years, most of the green beetles are eaten by birds, and the population becomes mostly brown. Which evolutionary mechanism is best illustrated by this scenario?

Accepted Answer

Natural selection

Question 12

Which of the following is a source of genetic variation in populations?

Accepted Answer

Mutation and genetic recombination during sexual reproduction

Question 13

Which of the following best describes the difference between a hypothesis and a theory in science?

Accepted Answer

A hypothesis is a testable, narrow explanation; a theory is broad and supported by extensive evidence.

Question 14

Which of the following is an example of how structure and function are related in biology?

Accepted Answer

The thin, flat shape of a leaf maximizes sunlight absorption for photosynthesis.

Question 15

Which of the following is NOT a step in the scientific method?

Accepted Answer

Ignoring data that does not fit the hypothesis

Question 16

Which of the following best describes the role of producers in an ecosystem?

Accepted Answer

They convert solar energy into chemical energy through photosynthesis.

Question 17

Which of the following is a falsifiable hypothesis?

Accepted Answer

If fertilizer is added to soil, then plant growth will increase.

Question 18

Which of the following best explains why mutations are important for evolution?

Accepted Answer

They introduce new genetic variation, which can be acted upon by natural selection.

Question 19

Which of the following is an example of hypothesis-based science?

Accepted Answer

Testing whether a new drug reduces blood pressure in patients

Question 20

Which of the following best describes the process of speciation?

Accepted Answer

The formation of new species from a common ancestor due to evolutionary processes

Principles of Biology: Diversity and Ecology – Study Guide (Themes, Scientific Inquiry, and Evolution)

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