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What process is responsible for maintaining proper pH in your body?

• metabolism

• reproduction

• homeostasis

• responding to stimuli

Which variable goes on the X-axis of a graph?

• dependent variable

• Independent variable

Why were fossils important to Darwin?

• They are a record for all living organisms

• Darwin could use them as evidence for evolution

• They show how all organisms are related

• They can easily be found and studied

What is the main goal of science?

• prove the evolution of life

• apply testing to prove ideas

• understand the world around us

• find new species of plants and animals

Hutton and Lyell were important to Darwin because

• they were respected scientists

• they both believed the earth was older than people believed

• they believed in evolution

• they used fossils in their work

Lamarck's idea that traits could be acquired in an organism's lifetime and these traits could then

• be passed onto the offspring

• increase the fitness of the organism

• become analogous organs

• become vestigial organs

Which of the following is not found in the nucleus?

• cytoplasm

• DNA

• chromosomes

• nucleolus

How do autotrophs differ from heterotrophs?

• heterotrophs make their own food while autotrophs do not

• autotrophs make their own food while heterotrophs do not

• autotrophs do not require oxygen to survive

• there are no differences between autotrophs and heterotrophs

Which of the following is not needed for photosynthesis?

• water

• carbon dioxide

• light

• oxygen

What type of graph would be used to show the growth rate of a plant over the course of one month?

• bar graph

• line graph

• pie chart

• scatterplot