Which substance is used for structure in plants?

A. Amylopectin

B. Cellulose

C. Collagen

D. Starch

Trees convert light energy to chemical energy. When wood is burned, chemical energy becomes thermal energy. This heat can be used to run turbines (mechanical energy) that eventually create electrical energy.

What factors can control a persons weight and hieght?

When an animal receives a vaccine, about how long will it take before the animal's immune system will protect the animal from disease? A. Two weeks B. Two days C. Two months D. Two hours

5. What is the correct description of the genotype for individuals that express the trait cystic fibrosis? heterozygous. heterozygous recessive homozygous recessive heterozygous dominant homozygous dominant

Write a paragraph describing DNA structure

Why is the grass green and the sky blue?

Select ALL of the items below that were Hitler's beliefs which then became part of Nazi ideology. Question 2 options: Germans are members of the Aryan master race. It is not necessary to conquer territory.

Introduced species can threaten biodiversity because they

Which of the following statements does not describe a problem with modern landfills? A. Materials buried in landfills decompose in three years. B. Chemicals leaking out of the waste stored there may pollute wells or groundwater supplies. C.

Describe the basic functions of living organisms