Which structure normally stimulates an allergic response?

(1) white blood cells

(2) antigen

(3) antibodies

(4) white blood cells, antigen and antibodies

What do the arrows in a food chain or food web represent

Which traits are characteristic of single-celled organisms? Choose all answers that are correct. A. have different cells for different tasks B. often derive nutrition directly through their cell membranes C. require few resources D.

What type of fossil fuel is made from trees, ferns, mosses, and other marsh plants?

Volatile substances used by "huffers" travel rapidly to the brain, causing dizziness, giddiness, and euphoria. Although these substances are not habit forming, studies show that long-term used can yield brain, kidney, and liver damage.

Which of the following correctly describes how a diagram of cellular respiration would suffer from a diagram of photosynthesis

What math skill do scientists use

How are producers and consumers alike a. they both need sublight to make their own food b. they both are considered heterotrophs c. they both carry out nitrogen fixation d. they both need nutrients to carry out life functions?

Rewrite the problem to this equation 25=25+5x

What do the four kingdoms have in common

Which type of interest rate gives the most accurate measure of the amount a borrower will really pay in interest, because it takes into account compounding that happens during the year? (Select the best answer.) Question 4 options: FICO APR APY FCRA