4. What is a physical or mental representation of an object or an arent?

a theor

a hypothesis

a model

a scientific lair

Using a light microscope the largest most noticeable organelle visible in most cells is the

Rock densities and age of crustal relationship between them

What group of cone bearing plants belong to?

Which of the following best describes gene regulation?

What is a difference between atp and adp molecules? a) adp can be used to directly power movement, while atp cannot. b) atp molecules provide less energy to the cell than adp molecules.

Which statement best explains how enzymes speed up chemical reactions? Question options: A. Enzymes lower the activation energy of a reaction. B. Enzymes gain heat from chemical reactions. C. Enzymes change shape during chemical reactions. D.

What is the most common sexually transmitted infection (sti) among young, sexually active people, particularly women?

Social networking is more important than direct contact with friends. A. True B. False

Simulated environment with equal amounts of insects seeds and fruit which flock will be able to eat the most the least and why

The English physician Ronald Ross wanted to try to find the cause of malaria. Based on his observations, Ross suggested that the Anopheles mosquito spread malaria from person to person. This suggestions was ... ?