Answer:
testing to see if it has cells
Explanation:
D) The Earth has changed over geologic time. Hope it helps!
Weak acids such as carbonic or sulfuric acid react with rocks in the ground, such as limestone. Groundwater reacts with limestone and the dissolving of limestone takes place which forms karst features, such as caverns.
Answer:
Carbon Dioxide
Explanation:
Snails will produce only carbon dioxide, while the Elodea will produce carbon dioxide and oxygen gas. Snails and Elodea will produce more carbon dioxide, causing the water to turn yellow.
<span>The gland which signals other glands to secrete hormones is the pituitary gland.</span>
