02.02 Limiting Factors

Question 1

Abiotic factors

Answer 1

all nonliving things in an ecosystem, including water, rocks, sunlight, weather, natural disasters, oxygen, space, hunting, and shelter

Question 2

Biotic factors

Answer 2

all living things in an ecosystem, including animals, bacteria, plants, fungi, and other living species

Question 3

Infectious agents

Answer 3

things that gain access to other living organisms, causing harm

Question 4

Limiting factors

Answer 4

the living and nonliving things present in an ecosystem that prevent a population from growing beyond a certain size, including food, water, available mates, and predators

Question 5

Native population

Answer 5

a species specially adapted to survive in the specific environment where they were born

Question 6

Ecosystems maintain healthy population sizes by balancing biotic and abiotic limiting factors (these populations must be neither too big nor too small). The number of _________ __________ that are present impacts the number of species—or the species diversity—in an area.

Answer 6

limiting factors

Question 7

How can scientists investigate the impact of limiting factors on a population?

Answer 7

Scientific Experiment or Observational Study

Question 8

Parts of Scientific Inquiry involved in a Scienctific Experiment

Answer 8

-Observations
-Research question
-Hypothesis
-Procedure
-Test variable (independent variable)
-Outcome variable (dependent variable)
-Control group
-Data, graph, analysis
-Conclusion
-Must be replicable (able to be repeated)

Question 9

Parts of Scientific Inquiry included in a observational study

Answer 9

-Observations
-Research question
-Procedure
-Data, graph, analysis
-Conclusion

Question 10

4 Types of Infection Agents

Answer 10

Bacteria

Viruses

Fungi

Parasites

Question 11

Bacteria

Answer 11

• single-celled biotic organisms
  -microscopic
  -some bacteria are helpful; digestive tract.
  -other bacteria are harmful and cause illness and infection.

Harmful bacteria can invade and replicate very quickly, causing damage to your cells. Examples of harmful bacteria: E. coli, streptococci, staphylococcus, and salmonella.

Question 12

The smallest abiotic infectious agents are

Answer 12

viruses

-they are considered nonliving; as they cannot reproduce or produce energy on their own

Question 13

Viruses must live inside a ______ ______

Answer 13

host cell

Question 14

Examples of viruses are

Answer 14

HIV, West Nile, and Zika.

Question 15

biotic organisms that can cause infection.

Answer 15

fungi

Question 16

Some types of fungi are multicellular, and some are __________.

Answer 16

unicellular

Question 17

Examples of fungi include

Answer 17

molds, yeast, athlete’s foot, and ringworm.

Question 18

_________ are biotic organisms that feed on other organisms.

Answer 18

Parasites

Question 19

Parasites may steal _________ and can transmit viruses and bacteria to humans.

Answer 19

nutrients

Question 20

Examples of parasites are

Answer 20

mosquitoes, ticks, and tapeworms.

Question 21

How can you help prevent the spread of infectious diseases?

Answer 21

Just think “Give Me Five!”

Number one Wash your hands frequently.

Number two Don’t share personal items.

Number three Exercise caution around animals and insects.

Number four Cover your mouth when you cough or sneeze.

Number five Stay informed of the news to be aware of current disease outbreak