Unit 1 exam review

What three body systems work together to help you raise your arm or pick up your leg?

• Nervous

• Respiratory

• Skeletal

• Muscular

Tags

NGSS.MS-LS1-3

Different types of cells have specialized structures. This is because they have different functions.

• True

• False

Tags

NGSS.MS-LS1-2

NGSS.MS-LS1-3

NGSS.MS-LS1-1

How are plant and animal cells different?

• One is a eukaryote and the other is a prokaryote

• Animal cells have chloroplasts and cell walls and plant cells do not

• Plant cells have chloroplasts and cell walls and animal cells do not

• They are exactly the same

Tags

NGSS.MS-LS1-2

How are eukaryotes and prokaryotes different?

• Eukaryotes have more complicated cells than prokaryotes

• Eukaryotes have simpler cells than prokaryotes

• Eukaryotes can only be multicellular while prokaryotes are only unicellular

• Eukaryotes can be either unicellular or multicellular while prokaryotes are only unicellular

What two systems work together to supply the body with oxygen and remove carbon dioxide?

• endocrine

• respiratory

• circulatory

• nervous

What does your body do if your blood sugar rises above the normal level?

• takes in glycogen

• releases glucagon

• releases insulin

• takes in insulin

Which is an abiotic factor? Check all that apply

• water

• grass

• minerals

• air

In a feedback loop, what does the RECEPTOR do?

• receives messages from the control center

• Detects the stimulus and sends info to the brain or control center

• decides what action the body needs to take to maintain homeostasis

• Carries out the response to get our bodies back to the set point

Which two are examples of positive feedback mechanisms (loops)?

• A/C system

• Heater

• A woman having contractions during labor

• A fruit causing other fruits around it to ripen

Tags

NGSS.HS-LS1-3

Which two are examples of negative feedback mechanisms (loops)

• A/C system

• Body temperature

• fruit causing other fruits around it to ripen

• a woman having contractions during labor