This is true. In biology a key is used to identify a plant or animal.
These keys will depend upon certain characteristics that can be used to
determine which part of the animal kingdom an organism belongs to.
The heart is made of involuntary cardiac muscle. to help you remember, cardiac is defined as “relating to heart” so if you’re ever stuck in this question again, look for the word “cardiac” and “heart”
The fact that he acted selfish and lied in front of his mother proves he is dishonest and self serving.
Answer:
Based on the relative volumes of the gases in Earth’s atmosphere, nitrogen is actually more than 3 times more than oxygen. Because the troposphere is the lowest atmosphere layer, it contains 75 percent of the atmosphere’s mass.. From largest to smallest, Earth’s atmosphere composition contains nitrogen, oxygen, argon, CO 2 and trace gases.
Explanation:
