Answer:
Fish
Explanation:
Fish are vertebrates and only have a single loop-circulation system.
Answer:
This is my answers, Hope it helps ☺️
Answer:
Natural protein fibers.
Explanation:
Fibers such as wool, hair,and silk, are made of protein. These are all natural fibers.
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Answer:
Arteries carry oxygenated blood away from the heart. Veins carry the blood back to the heart. Veins contain valves that ensure blood flows in only one direction. Arteries don’t require valves because pressure from the heart is so strong that blood is only able to flow in one direction.
Explanation:
Mitosis:
Produces gametes
Process ends with identical cells
Growth and repair
Meiosis:
Produces 4 cells that each have 23 chromosomes
Both: I think crossing over occurs in both
Interphase occurs before process
Hope it helps