The circulatory and respiratory systems work together to circulate blood and oxygen throughout the body. Air moves in and out of the lungs through the trachea, bronchi, and bronchioles. Blood moves in and out of the lungs through the pulmonary arteries and veins that connect to the heart.
<h2>Answer</h2>
A single celled salt water protozoan is transferred to a a freshwater lake. What might happen to the protozoan
- it would gain water from the hypertonic solution. It it can't get rid of the pressure, it will burst.
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Answer:
I think its c Scientists cannot determine how it changes.
d). It increases over time.
Answer:
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<u>TRUE</u></h2>
Explanation:
The eggs of a frog hatch into tadpoles, which look like little fish. After a few days, tadpoles develop legs and arms and grow into young frogs with tails. In the next few days, they grow into an adult frog with no tail. The process of growing from a tadpole to an adult frog is called metamorphosis