Whats the difference between freshwater and saltwater?

Which of the following types of organisms must use the process of respiration? A) Autotrophs B) Primary consumers C) Secondary consumers D) All of the above

A doctor is trying to diagnose the cause of hearing loss in four patients. She has recorded her notes from the patient interviews in this chart.

A patient has diabetes, a disease that causes high blood sugar levels. Which macromolecule will a dietician monitor most closely in a patient that has the disease? A: carbohydrates B: lipids C: nucleic acids D: proteins

If you collected a piece of cell coating found directly external to a eukaryotic plasma membrane, and chemical tests showed that it was made of cellulose, you would expect to see plasmodesmata if observed with an electron microscope. True or False?

What happens in step 1 one of replication?

Does Insertion mutation alter protein function? Possible answers: It does, it won't, or it may or may not

Which sphere is home to the largest portion of animal life on earth

In a particular breed of cattle, the trait of not having horns (Pp) is dominant over having horns (pp). The Punnett square below shows a cross between parents with Pp and pp genotype. What percentage of offspring will be without horns? A. 0% B.

In a pond ecosystem, what generally happen over a long period of time? A) The pond will fill in, grasses and trees will grow there B) It will become deeper than a lake. C) The water will become stagnant and everything in the pond will die.

Which statements are part of Darwin's theory of evolution? Check all that apply. Organisms stay the same over time. Organisms change over time. All organisms have common ancestors. Only some organisms have common ancestors.