
Body Systems Unit Skills Check
Authored by Celia Trujillo
Biology
9th Grade
NGSS covered
Used 10+ times

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25 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
The two types of feedback systems that help organisms maintain homeostasis are:
Tags
NGSS.HS-LS1-3
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
When glucose levels in the blood rise, your brain sends a signal to your pancreas. The pancreas releases insulin, which opens channels in cell membranes to allow glucose to enter the cell, lowering blood sugar levels. This is an example of a:
Positive Feedback Loop
Negative Feedback Loop
Tags
NGSS.HS-LS1-3
3.
MULTIPLE CHOICE QUESTION
45 sec • 1 pt
Homeostasis
Tags
NGSS.HS-LS1-3
4.
MULTIPLE CHOICE QUESTION
45 sec • 1 pt
When you get cut, your skin cells release hormones that signal platelets to come and stop the bleeding. Platelets then release more hormones that signal even more platelets to help stop bleeding. The hormone signals continue until the cut is closed. This is an example of what type of feedback?
Positive Feedback Response
Negative Feedback Loop
Tags
NGSS.HS-LS1-3
5.
MULTIPLE CHOICE QUESTION
45 sec • 1 pt
If the calcium in your blood decreases below homeostasis levels, a gland in the brain will sense the decrease and send a chemical message to your bones. Your bones will release calcium into the blood, bringing blood calcium levels back up. This is an example of what type of feedback?
Positive Feedback Response
Negative Feedback Loop
Tags
NGSS.HS-LS1-3
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
reverses the direction of change
positive feedback
effector
hypothalamus
negative feedback
Tags
NGSS.HS-LS1-3
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
increases or speeds up original change
negative feedback
positive feedback
endotherm
ectotherm
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