People once believed that organisms could grow food and dirt. how might the study of cells affect the view.

A) Chromosome B) DNA nucleotide C) Codon D) Gene Place the components in order, from smallest to largest. A) A0B0D0C B) B0C0D0A C) C0D0B0A D) D0C0B0A

Patients being treated with a particular drug run the risk of being allergic to the drug. a patient's reaction to the drug is characterized by doctors as being hyperallergic, allergic, mildly allergic or not allergic, and these have probability

Which of the following types of organisms break down dead plant and animal matter and return carbon dioxide to the atmosphere? A) scavenger B) producers C) consumers D) decomposers

What are the group of cells called that are produced after the cell cycle

Which group from organisms includes only multicellular heterotrophs

Which type of property of matter can be observed without changing the composition of the substance? a) physical properties b) reversible properties c) chemical properties d) irreversible properties

Which best defines homeostasis? 1. modifying the external environment 2. maintaining a stable internal environment 3. controlling what enters and exits the cell 4. movement of materials into the cell

What is the dependent variable? A sunlight B the height of the plant C the color of the light D the intensity of the light

Many plants can grow in the littoral zone of a lake because a. sunlight reaches its bottom. b. there are no algae. c. there are no animals. d. there is both salt water and fresh water.

Give me 3 examples of things that can change an ecosystem.