Heat is held in the air by:

A. nitrogen

B. water vapor

C. oxygen

D. none of the above

This is a safe method of testing the odor of a chemical.

What part of the food chain is the alga?

Protein synthesis can be compared to building a doghouse. Sondra wanted to build a doghouse and found a book in the reference section in the local library. She copied the pages of directions using wood and nails to make the doghouse.

How are the functions of vaccines and antibiotics different?

The Jones family has eight children, all of whom are girls. What is the chance that the next child will be a boy? Explain.

One function of the chromosomes in a cell is to A. absorb light and create energy for the entire organism. B. transport proteins throughout the cell and to other cells in the body. C. provide a location for protein synthesis inside the cell. D.

What are the differences between renewable resources, non renewable resources and sustainable option?

Although his cholesterol levels were not high, mr. martinez read that cholesterol was bad for his health, so he eliminated all foods and food products containing this molecule. he later found that his cholesterol level dropped only 20%.

Which type of receptor would you expect to be most abundant in the antennae of a moth? A) chemoreceptorsB) thermoreceptorsC) mechanoreceptorsD) electroreceptors

What is the maximum depth of surface curents? why a. 1,400 m b. 400 m c. 900 m d. 4,000 m explan why and how you choose your anwser