An egg is protected by its outer shell. However, the shell also allows moisture and air to pass through. Which cell structure performs a similar function?

A:cell membrane

B:cytoplasm

C:nucleus

D:vacuole

How is a new moon different from a lunar eclipse? O A. In a new moon, Earth is between the sun and the moon. O B. In a new moon, the moon is between Earth and the sun. O C. In a new moon, the sun, Earth and the moon are perfectly aligned.

An organism's allele combination is called the

How do the levels of protein structure affect each other?

Why are such different animals as fish, amphibians, reptiles, birds, and mammals grouped into a single phylum?

Which of the following can change scientific knowledge? A. Biased information B. New evidence C. Non-testable ideas D. Unreliable facts

Which m50 gas mask accessory should be used if storing the mask for more than 30 days?

The main function of the inflammatory response is 1. to initiate the production of antibodies. 2. remove contaminating microorganisms 3. initiate repair of damaged tissues. 4. initiate T-cell-mediated immune responses.

The functions of the nasal conchae are to enhance the air turbulence in the cavity and to increase the mucosal surface area exposed to the air. T/F

Which of these groups of animals are endargered a. mice b. killer whales c. dinosaurs d. sea turtles

Levels of organization of the biosphere