5.

Which tool enhances a scientist's senses?

a microscope

a stirring stick

a test tube

a calculator

Does a worm have cartilage?

Which does not usually trigger mass movements?

What occurs during G1 and G2 in the cell cycle? A) synthesis of the cell B) growth of DNA C) growth of the cell

What does the surface of a calm lake have in common with a contour line?

How do snakes subdue their prey? a. some by constriction c. grabbing and swallowing whole b. some by injecting venom d. all of these

If it were part of a food web, a pigeon could be eaten by

In human females, the ovaries play a role in several body systems and the interactions among these systems. Which body system would be most affected by damage to the ovaries? * A. Endocrine System B. Reproductive System C. Immune System D.

Metalloids have full valence shells of electrons

Which mineral is used in making cans and is found mainly in Australia? hematite bauxite tektite magnetite

Suppose you need to build a raft and what chemical physical properties will be needed