Explanation:
D. A change in the amount of polar ice will alter how ocean currents move.
Answer:
The answer to the first question should be b.
Explanation:
Throughout your body, minerals help build bones and provide structural support. In your mouth, calcium helps harden your enamel and strengthen your jawbone. Hope this helps!
Answer: Positive
Explanation:
It encourages that stimulus.
Answer:
1. A. digestive system
B. excretory system
2. A. nervous system
B. respiratory system
Explanation:
1. the digestive system helps digest food and the excretory system helps get rid of waste.
2. asthma is considered a respiratory disease.
hope it helped. :) please mark as brainliest if it did. thanks in advance. :)