Lesson 9, Chapter 1

Question 1

Pathogens

Answer 1

Organisms that make you sick

Question 2

Bacteria

Answer 2

A one-celled organism without a nucleus

Question 3

Binary fission

Answer 3

The way that bacteria divide

Question 4

Bacterium

Answer 4

The singular form of the word bacteria

Question 5

Viruses

Answer 5

Pathogens that don’t have any chromosomes

Question 6

DNA Viruses

Answer 6

Viruses that insert their DNA into a host cell’s DNA in the nucleus

Question 7

Adenoviruses and herpes viruses

Answer 7

Two examples of DNA viruses

Question 8

RNA Viruses

Answer 8

Viruses that insert their RNA into a host cell

Question 9

Hepatitis, Ebola, and Coronavirus

Answer 9

Three examples of viruses that are RNA viruses

Question 10

Fungi Organisms that, in the human body, are usually made up of long, thin cells called hyphae.
Hyphae Chains of long, thin cells that make up some types of fungi.
Parasites Organisms that can be single-celled or multi-celled; get their nutrition from the host organism.
Tapeworms, pinworms, and roundworms Three examples of multi-celled parasites.
Giardia An example of a single-celled parasite that invades the digestive system.
Protozoa Single-celled parasites.
Cancerous cells Abnormal cells that can multiply uncontrollably and become tumors.
Phagocytize Surround and engulf.
Angiogenesis The creation of new blood vessels.

Answer 10

Organisms that, in the human body, are usually made up of long, thin cells called hyphae.

Question 11

Hyphae Chains of long, thin cells that make up some types of fungi.
Parasites Organisms that can be single-celled or multi-celled; get their nutrition from the host organism.
Tapeworms, pinworms, and roundworms Three examples of multi-celled parasites.
Giardia An example of a single-celled parasite that invades the digestive system.
Protozoa Single-celled parasites.
Cancerous cells Abnormal cells that can multiply uncontrollably and become tumors.
Phagocytize Surround and engulf.
Angiogenesis The creation of new blood vessels.

Answer 11

Chains of long, thin cells that make up some types of fungi.

Question 12

Parasites Organisms that can be single-celled or multi-celled; get their nutrition from the host organism.
Tapeworms, pinworms, and roundworms Three examples of multi-celled parasites.
Giardia An example of a single-celled parasite that invades the digestive system.
Protozoa Single-celled parasites.
Cancerous cells Abnormal cells that can multiply uncontrollably and become tumors.
Phagocytize Surround and engulf.
Angiogenesis The creation of new blood vessels.

Answer 12

Organisms that can be single-celled or multi-celled; get their nutrition from the host organism.
Tapeworms, pinworms, and roundworms Three examples of multi-celled parasites.
Giardia An example of a single-celled parasite that invades the digestive system.
Protozoa Single-celled parasites.
Cancerous cells Abnormal cells that can multiply uncontrollably and become tumors.
Phagocytize Surround and engulf.
Angiogenesis The creation of new blood vessels.

Question 13

Tapeworms, pinworms, and roundworms Three examples of multi-celled parasites.
Giardia An example of a single-celled parasite that invades the digestive system.
Protozoa Single-celled parasites.
Cancerous cells Abnormal cells that can multiply uncontrollably and become tumors.
Phagocytize Surround and engulf.
Angiogenesis The creation of new blood vessels.

Answer 13

Three examples of multi-celled parasites.

Question 14

Giardia

Answer 14

An example of a single-celled parasite that invades the digestive system.

Question 15

Protozoa

Answer 15

Single-celled parasites.

Question 16

Cancerous cells

Answer 16

Abnormal cells that can multiply uncontrollably and become tumors.

Question 17

Phagocytize

Answer 17

Surround and engulf.