Answer:
arthropoda : invertebrate
mollusca : invertebrate
chordata : vertebrate
Explanation:
There are 9 in total but those are the main 3
Answer:
The main purpose of the circulatory system is to transport blood, oxygen, nutrients and hormones to and from different cells and tissues throughout the body.
Explanation:
This system works hand-in-hand with the respiratory system to facilitate the exchange of oxygen and carbon dioxide within the blood per the alveoli in the lungs.
Answer:
Yes
Explanation:
So, yes, we can end up with genes we wish to have in an organism. ... Well, the problem is that a mutation is actually either a deletion or insertion within a sequence of nucleotides, things that make up a gene. Now, in later generations of offspring, genes will mutate randomly on their own anyway.
Answer:
Metabolism!!
Not to mention pretty much the entire digestive tract and nervous system.
Explanation:
