Which best describes red blood cells? They are colorless. They protect against disease-carrying microorganisms. They transport oxygen throughout the body. They aid in blood clotting.

Water is formed when two hydrogen atoms bond to an oxygen atom. When a substance is made of two or more atoms like this, we call it A) a mixture. B) a complex. C) a compound. D) an element.

A boat moves up and down as water waves pass under the boat. If the amplitude of the wave gets bigger, then A) the boat will rise up higher. B) the boat will not rise up as high. C) the boat will go up and down more often.

Which of the best defines an individual based on chromosomal sex? 1. man 2. person 3. human 3. male

An organic compounds with a ratio of about two hydrogen atoms and one oxygen atoms for each carbon atom is a (n) ?

When the chromosomes line up in mitosis this is known as which phase?

Which of the following is true biased thinking promotes scientific ideas open - restricts scientific thinking creativity Foster scientific discovery clothes minus cultivate scientific exploration

Why do the lateral and polar views of chromosomes of the same cell in metaphase look different?

Which two words mean nearly the same thing

Look at the ocean system described below. plankton - - - > sardines - - - > swordfish - - - > shark What will most likely happen to this ecosystem if the swordfish are killed by a virus? A. The shark population will decrease. B.

Complete the word association: Small intestine is to nutrient absorption as blood is to nutrient A. translation. B. regulation. C. distribution. D. elimination.