A scientist thinks he has discovered a new virus that degrades cellulose, major component in cell walls. Which type of cell would be affected by this virus?

A. a leaf cell C. a bacteria cell

B. a muscle cell D. a red blood cell

Explain how carnivores might be affected if the main plant species in a community were to disappear

If a person eats hurriedly and barely chews his food before swallowing it, what effect will it likely have on his stomach? a. His stomach will have to excrete enzymes to digest carbohydrates as well as those to digest protein. b.

Which statement provides an example of epigenetics A. Genetic mutations arising every other generation B. Selective breeding of dogs to develop an ultra-aggressive strain C. Genetic mutations eliminating maternal behavior D.

An ecosystem is self-sustaining as long as organ - isms have sufficient quantities of energy, oxygen, minerals, and water. when organisms die, some of these materials are recycled back to plants in the ecosystem primarily through the activity

Most of the nitrogen in the atmosphere is found in what form

What does the principle of descent with modification imply?

There is a high level of occupational inheritance. a. True b. False

Some types of aquatic frogs bury themselves in the mud and spend the winter hibernating at the bottom of the lake and pond. which characteristic of life does this behavior represent

How do nonliving things and living things interact in the temperate forest biome

An apples cells contain 34 chromosomes. After the process of meiosis is complete, each gamete produced would contain how many chromosomes?