Histamine exerts each of the following effects EXCEPT: A. Dilation of small blood vessels, leading to a flushing of the skin B. Increased capillary permeability, leading to edema C. Bronchoconstriction, leading to difficult breathing D. Reduced secretion of gastric acid, leading to protection of the gastric mucosa

Need asap plz hurry im being timed when a body cell divides through the process of mitosis, the chromosomes in the daughter cells a. represent only the healthiest chromosomes from the parent cell. b. represent only half of the chromosomes in the parent cell. c. are identical to the chromosomes of the parent cell. d. are formed when chromosomes from the parent cell cross over.

Which of the following is the scientific term for an organism that makes its food from inorganic materials? a. autotroph b. heterotroph c. embryotroph

What is a food chain? a. different animals located in different communities b. energy transferred from the sun to plants and then to a series of living things c. rows of crops, such as lettuce, in a field d. animals using one another as food for energy and growth