Answer:
(VEE-nuh KAY-vuh) A large vein that carries blood to the heart from other areas of the body. The vena cava has two parts: the superior vena cava and the inferior vena cava. The superior vena cava carries blood from the head, neck, arms, and chest.
D. Estuaries
Estuaries are a place where fresh and salt water mix.
The coenzyme required is pyridoxal phosphate. It is a vitamins B6 cofactor required for transamination reaction.
Answer:
I think bacterial cell becausea microscope look into small organisms that we can't see with a naked eye
the internal structures provide shapes and support to a variety of living organisms both unicellular and multicellular