The respiration system of frogs differs from mammals because frogs

During the evolution of life on Earth, the photosynthetic organisms initially responsible for raising atmospheric oxygen concentrations from less than 1 percent to about 20 percent were (A) cyanobacteria (B) archaea (C) diatoms (D) flowering plants

Which organelle act like a storage system for cells

Chromosomes move to the middle of the spindle during what phase?

All interactions between the atmosphere and hydrosphere involve? A-soil and living things B-water and living things C-gasses or particles in the air D-living things and gasses or particles in the air

If an individual has a body weight of 180 pounds with a body fat percentage of 30%, what would be your recommended goal on a weight reduction program if this person desired to have a body fat of 20%?

A client who developed gestational diabetes mellitus during the pregnancy has just been admitted in the labor and delivery unit. what is the priority nursing action for this client?

If you put three cells in an isotonic solution what will happen to them.

How does the presence of a mid ocean ridge most likely affect the nearby ocean currents? A lt speeds up surface currents B. it changes the course of surface currents C. It changes the course of deep ocean currents. D.

I need to know two structures that allow arthropods to breathe air?

Explain the similarity between aquifers and banks.