Lesson 3

Question 1

Virus

Answer 1

A tiny nonliving 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 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

Question 4

Bacteria

Answer 4

Single called organism 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 from living in or on a host in a parasitism interaction

Question 7

Resistant

Answer 7

Able to withstand

Question 8

Vertebrates

Answer 8

An animal with a backbone

Question 9

Invertebrates

Answer 9

An animal without a backbone

Question 10

Mammals

Answer 10

A vertebrate who’s body temp is regulated by its Internal heat and that has skin covered with hair or fur and glands that produce milk to feed its young