Science 2023

Question 1

What did Mendel use for his tests of heredity?

Answer 1

pea plant

Question 2

What is a description of the alleles present in an individual?

Answer 2

genotype

Question 3

What is a tool that would help predict patterns of heredity?

Answer 3

punnett square

Question 4

What is Phenotype?

Answer 4

the physical traits of an organism

Question 5

If a gene was homozygous recessive, how would you represent it?

Answer 5

two lower case letters (homo means same EX: rr)

Question 6

How many copies of alleles does each person have?

Answer 6

2 copies

Question 7

If a gene was heterozygous, how would you represent it?

Answer 7

one uppercase and one lowercase (Hetero means different EX: Bb)

Question 8

What is carrying capacity?

Answer 8

the size of population that is supported by resources in a given location

Question 9

What usually happens to a population of organisms when the region’s carrying capacity has been reached?

Answer 9

it levels off

Question 10

What is an ecosystem?

Answer 10

all living and nonliving things in and area

Question 11

What are populations influenced by?

Answer 11

prey, resources, water, shelter, food, predators

Question 12

Explain the relationship between population and community and ecosystem.

Answer 12

a population is all of the organisms of the same species in the same area, a community is all populations of different species living in an area , and an ecosystem is all the living and nonliving things in a given area.

Question 13

What happens when the needs of species are no longer met?

Answer 13

they either migrate or die off and that leads to extinction

Question 14

What are some causes of extinction?

Answer 14

habitat loss not enough resources and overhunting

Question 15

When does overpopulation of species occur?

Answer 15

when species’ numbers exceed the carrying capacity

Question 16

Why is overpopulation so dangerous?

Answer 16

it messes up the ecosystem, it uses up more resources, and messes up the food web

Question 17

What is the most common effect of overpopulation?

Answer 17

starvation

Question 18

What happens if an ecosystem is left alone?

Answer 18

it balances out

Question 19

What happens when population numbers increase?

Answer 19

the resources are used up faster

Question 20

What molecule is most responsible for the adverse effects of of pollution and deforestation on Earth’s climate?

Answer 20

carbon dioxide

Question 21

What is global warming?

Answer 21

the slow warming of earth’s atmosphere

Question 22

What is anthropogenic mean?

Answer 22

caused by humans

Question 23

What are the greenhouse gases?

Answer 23

methane, carbon dioxide, water vapor

Question 24

What is happening to the weather that is a sign of climate change?

Answer 24

extreme weather, glaciers are melting

Question 25

What is a water cycle?

Answer 25

the movement of water between various reservoirs of water around the planet

Question 26

What is the most important source of energy that drives the water cycle?

Answer 26

the sun

Question 27

What are the basic forces that drive the water cycle?

Answer 27

buoyancy and the force of gravity

Question 28

What does the global wind system and the resulting currents in Earth’s oceans move around the planet?

Answer 28

thermal energy and moisture

Question 29

What is precipitation?

Answer 29

snow sleet rain hail

Question 30

What are temperatures affected by?

Answer 30

seasons and the water cycle

Question 31

What is a meteorologist?

Answer 31

observes, studies, forecasts the weather

Question 32

Name some of the tools they use.

Answer 32

satellites, weather radar

Question 33

What is a front?

Answer 33

boundary between large air masses with different densities