Which of the following are factors which shape marine ecosystems?
a) salinity of the water
b) temperature of the water
c) the amount of oxygen dissolved in the water
d) all of these

What organ systems are working to you cool down after a workout?

Immature bone cells, or osteoblasts, manufacture a protein called osteoid as well as several hormones. because of this, we would expect osteoblasts to contain numerous a) nuclei. b) ribosomes. c) lysosomes. d) golgi bodies.

Label all the places where dna is located in the plant cell and in the animal cell. dna