Explanation:
Carrier proteins are proteins that carry substances from one side of a biological membrane to the other.
Answer:
Either the cell wall or the cell membrane
Explanation:
Both have same structure. Eat the same, move the same.
Answer:
The correct answer is b. The oldest generally accepted fossils of large animals range in age from 565 to 550 million years old.
Explanation:
The oldest one of them all is the hematite tubes, that are dated about 3.77 billion to 4.2 billion years and it's from a yet unknown bacteria.
