In 2004 a fossil of an organism that had fins and gills but also lungs and wrists was discovered what might the fossil suggest about evolution

Explain how the resting potential is created and maintained. (sodium potassium pump) What happens when sodium comes in and potassuim leaves.

How will the excretory system respond when an animal is thirsty? A. by relaxing the striated muscles B. by retaining body fluids C. by absorbing heat from the digestive glands D. by releasing hormones

What type of organism does not contain a nucleus

Are all mutations bad? True or false. Explain And what is a mutation?

what else can be compared to computer viruses? A. bacteria B. protozoans C. bacteriophages D. fungi

Which class of immunoglobulins sensitizes cells to allergens?

Which statement about somatic mutations is true? A. They exist in all the cells of the body. B. They are acquired through exposure to mutagens. C. They are inherited via sperm and egg cells. D. They are passed on to offspring.

In year three the farmer discontinue the use of the insecticide Which statement would best predict the population in generation 4

What happens to carbon atoms during cellular respiration or fermentation?

How are photosynthesis and chemosynthesis similar?