which of the following is a type of circulatory system open closed both a and b or none of the above

Which homeostatic process is characterized by the diffusion of water molecules? active transport osmosis passive transport dynamic equilibrium

The great lake in north america hold about what percent of earth's fresh surface water?

In the question do thin liquids freeze faster than thick liquids what would the independent and dependent variables be?

What is the process by which a cell engulfs large particles as defense or for food

Choose all the right awnsers. each new cell produced by mitosis: 1) obtains new traits. 2) inherits all traits from its parent. 3) is identical to the parent's structure. 4) is different.

The secretions of the bulbo-urethral glands neutralize traces of acidic urine in the urethra and serve as a lubricant during sexual intercourse.

What two types of materials transfer thermal energy through convection?

A homozygous round seeded plant is crossed with a homozygous wrinkled seeded plant. What are the genotypes of the parents?

A shrew requires about 4.2 kcal per day to simply exist. If you add in activity, the shrew needs about twice that amount. Which of the following would provide the shrew the highest number of kcal for the least amount of food in grams? A. protein B.

5. Which of the following statements is true of a scientific theory? A. It's an accepted explanation for how the world works. B. It explains what happens but not how it happens. C. It's a guess accepted by a few scientists. D.