Question

1) Microorganisms, such as bacteria and fungi

2) The growth and development of microorganisms

3) Food preservation methods

4) Parasites are microorganisms that

5) Pests may

6) Pesticides are chemicals that

7) Herbicides kill plant pests (weeds) while

8) The use of pesticides can

9) Biological pest control involves

10) The improper disposal of waste

11) Refuse can be classified as

12) Alternative methods of waste disposal

13) Your immune system protects you from infection

A) act as host to human parasites.

B) be hazardous to the environment and to the health of humans and other useful organisms.

C) are affected by temperature, moisture, oxygen and acidity.

D) biodegradable (decays) or non biodegradable (does not decay)

E) by making antibodies

F) cause decay

G) feed on living material

H) include reuse, recycling and converting to energy

I) include salting, heating, refrigeration, drying, pickling and adding of sugar

J) insecticides kill insects

K) introducing the natural predator or parasite of the pest

L) kill pests

M) will result in many health problems and the spread of diseases

Answer 1

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