The lining of the heart is the pericardium.
I think it’s b but I have no experience in this subject sorry
Answer:
A(n) <u>element</u> is a type of matter that has a unique set of properties and that cannot be broken down into simpler substances by chemical means.
Explanation:
A element is the simplest form of matter which also has a unique set of properties.
Hope this helps!!
Answer:
The correct answer is - increase in frequency.
Explanation:
According to the theory of Darwin, organisms most likely survive and reproduce in an ecosystem that is able to change or adapt to the changes in the ecosystem.
According to the modern evolutionary theory that the genes that are responsible for new changes or traits that help a species to reproduce and survive in a particular environment increase in frequency and the genes do not helps decrease in frequency.
