What is a mutagen?

O

A. A device used to test for mutations

O

B. A substance that causes a mutation

O

C. A sex cell that has a mutation

O

D. A somatic cell that has a mutation

1. What does the word imperceptible in paragraph 3 most likely mean?

What is a narrow valley found between steep rocky cliffs that was formed by a down cutting stream or river

Which phrases describe non-foliated rocks? Check all that apply. a. have grains in parallel layers b. have randomly arranged grains c. include quartzite and marble d. tend to split along their bands e. form from crystallized magma

Martha wrote the following sentences to describe a specific geologic feature. "This is an asymmetric block of Earth. It was formed when crust was uplifted and tilted along a major fault zone.

Static electricity can cause what two types of damage in electronic components?

Several hours after eating a chilled three-bean salad containing home-canned green beans, family members have difficulty breathing and swallowing, double vision, and muscle weakness. what should they do

What type of energy is this (not the light or wood, but the heat?

Some patients who are given a sugar pill to treat headaches feel much better. this is an example of the:

Animals with nerve nets have?

17. In which stage of the human menstrual cycle is an egg released from an ovary? A) Ovulation B) Follicle stage C) Menstruation D) Corpus luteum stage