Two atoms are isotopes of the same element. Which of the following should

be different for these two atoms?

A. The behavior in a chemical reaction

B. The number of neutrons

C. The type of element

D. The number of protons

What is red shift? How does it affect earth and our solar system?

Nuris is writing a paper on the scientist who first named cells after studying cork under a microscope. Who is her paper about?

If a female has hemophilia and is married to a normal man. What percentage of her sons will have hemophilia?

Which of the following statements does NOT correctly describe the results from cloning dairy cows? Cloning of dairy cows increases the production of dairy milk. Cloning of dairy cows decreases the quality of milk produced by dairy cows.

Why does a reduction reaction always accompany and oxidation reaction

Microscopic organisms that are disease-causing agents are called Answer a. pathogens. b. virulent. c. multifactorial disease. d. endoplasmic microorganisms.

Which of the following statements about REM sleep is TRUE? Question 3 options: While dreaming, eyes may dart around as if watching a dream unfold. Dreams occur only in REM sleep.

A geologist finds rocks with dinosaur fossils. what is most likely the approximate age of the rocks in which the dinosaur fossils were found? A, 5 billion years old. B, 70 million years old. C, 1 thousand years old. D, 500 million years old.

When water is absorbed from the chyme, it becomes what?

A body part that is on the opposit side of the body from another body part is said to be