Lesson 3-4

Question 1

Virus

Answer 1

A tiny, non living particle that enters and then reproduces inside a living cell.

Question 2

Host

Answer 2

An organism that provides a source of energy or a suitable environment for a parasite to live with, in, or on.

Question 3

Vaccine

Answer 3

A substance used in a vaccination that consists of pathogens that have been weakened or killed but can still trigger the body to produce chemicals that destroy the pathogens.

Question 4

Bacteria

Answer 4

Single-called organisms that lack a nucleus; prokaryotes.

Question 5

Protist

Answer 5

A eukaryotic organism that cannot be classified as an animal, plant, or fungus.

Question 6

Parasite

Answer 6

An organism that benefits by living with, on, or in host in a parasitism interaction,

Question 7

Tissue

Answer 7

A group of similar cells that perform a specific function.

Question 8

Vascular plants

Answer 8

A plant that has true vascular tissue for transporting materials.

Question 9

Nonvascular plants

Answer 9

A low-growing plant that lacks true vascular tissue for transporting materials.

Question 10

Vertebrates

Answer 10

An animal with a backbone.