2/11/2021

Assessment 3 Review

Friday 7 question assessment.

25 mins MAX no extra time.

5 multiple choice

2 short answer.

Multiple Choice

(Lesson 1) Homeostasis

• allows for a wildly fluctuating internal environment

• is impossible in vertebrates

• is the maintenance of a relatively stable internal environment and often incorporates a form of feedback regulation

• is the maintenance of a relatively stable external environment and often incorporates a form of feedback regulation

Multiple Choice

(Lesson 8)What happens to the body when the heart rate increases?

• more oxygen to muscles

• less oxygen to muscles

• blood cells are (excreted) leave the body faster

• hormones are not made

Multiple Choice

(Lesson 1) If the environment gets hot, we will often sweat in order to decrease temperature this is an example of

• external stimuli

• regulation of the execratory system

• feedback mechanism

• body recycling fluids

Multiple Choice

( Lesson 8) What is the average pulse at 4 mins of exercise?

• 125

• 135

• 145

• 150

Multiple Choice

(Lesson 8) When the heart rate increases because of exercise_________also happens?

• less oxygen goes to the muscles (reduced oxygen flow)

• less enzymes are destroyed

• more carbon dioxide is carried to the muscles

• more energy (ATP) is brought to muscle cells to keep moving

Multiple Choice

(lesson 8) What should scientist do after an experiment if they notice their data does not support their hypothesis?

• make a new hypothesis about topic to match your data

• do more research on the topic

• take a poll to see what other people think about the hypothesis

• have another person do the experiment and share their results.