What does homeostasis means?

Which activity is considered a baseline activity A. sprinting to catch a bus B. putting away groceries C. walking to a friend's house D. mowing the lawn

The white blood cells that fight bacterial infections and attack cancer cells and viruses are called Group of answer choices lymphocytes. carcinogens. glucocorticoids. telomeres. neurotransmitters.

Which bioterrorism agent is at high risk for use as a potential biological weapon?

An organ composed mainly from epithelial and nervous tissues converts vibrations into impulses that are sent to the brain. Which organ could this be?

Where does photosynthesis generally occur?

How do you explain that the variability in a domesticated species is greater than in the same species, or a similar one, in the wild? For example: dogs vs. wolves; chickens vs. red jungle fowl.

Which of the following traits do archaeans and bacteria share? A) composition of the cell wall B) lack of a nuclear envelope C) presence of plasma membrane D) both A and B E) both B and C

In a population of birds, the percentage of individuals having a certain gene changes from 20% to 60% over the span of several hundred years.

How many codons equal an amino acid?

R = red flowers r = white flowers According to Mendel's law of dominance, which statement best describes the result of a cross between parents with genotypes Rr and Rr? A) Only RR offspring will have red flowers.