Bio Unit 4 test

Question 1

Abiotic

Answer 1

Non living things

Question 2

Biotic

Answer 2

living things

Question 3

What is natural selection

Answer 3

Process where organisms with traits more suited to their environment are more likely to survive, reproduce, and pass those better traits to their offspring

Question 4

What are the different types of natural selection

Answer 4

Directional, stabilizing, disruptive

Question 5

What is ocean acidification

Answer 5

Changing of ocean water PH levels due to increase or decrease in CO2 levels in atmosphere

Question 6

What is the PH scale

Answer 6

0-14 is the scale, 7 is neutral, 0-6 is basic, 8-14 acidic

Question 7

What is biodiversity

Answer 7

The variety of life on earth at all levels, encompassing the diversity of species, genes, and ecosystems

Question 8

What is homeostasis

Answer 8

Ability to maintain a stable environment

Question 9

What is carrying capacity

Answer 9

It’s the maximum number of organisms an environment can sustainably support over time.

Question 10

How do you label a graph- include example

Answer 10

Dependent variable on Y axis, Independent variable on X axis
Ex; time spent studying (independent variable), test scores (dependent variable)

Question 11

Label the cell membrane-

Answer 11

Draw it and refer to answer slide

Question 12

What’s the equation for cellular respiration-

Answer 12

O2 + Glucose= CO2 + H2O + ATP

Question 13

What cell part is needed for the cellular respiration process-

Answer 13

Mitochondria

Question 14

What are the different types of adaptation

Answer 14

• Adaptations for resources (food)
• Adaptations for reproduction
• Adaptations for protection (from environment or predators)

Question 15

Hypertonic

Answer 15

High solute → Low water

Question 16

Hypotonic

Answer 16

Low solute → High water

Question 17

Isotonic

Answer 17

Equal solute → equal water

Question 18

What is the difference between active and passive transport

Answer 18

Passive transport:
- High concentration to low concentration
- Along the concentration gradient
- No chemical energy required (ATP)

Active transport:
- Low concentration to high concentration
- Against the concentration gradient
- Requires chemical energy (ATP)

Question 19

Diffusion has what type of transport (active or passive)

Answer 19

Passive transport

Question 20

Osmosis has what type of transport (active or passive)

Answer 20

Passive transport

Question 21

Draw and label a plant cell-

Answer 21

Draw it and refer to answer slide

Question 22

What is an example of something that would need to leave and come into a cell

Answer 22

Oxygen comes in, waste goes out.

Question 23

Draw and label an animal cell-

Answer 23

Draw it and refer to answer slide

Question 24

What is the main function of the cell membrane

Answer 24

To allow things to enter and exit the cell to help maintain homeostasis

Question 25

What does semipermeable mean

Answer 25

Some things can go into the cell and some things can leave the cell

Question 26

Which macromolecule is the phospholipid bilayer made of-

Answer 26

Lipid

Question 27

What is cell transport-

Answer 27

It’s the process of moving substances across the cell membrane.

Question 28

When we breath in where is there a higher concentration of oxygen

Answer 28

The alveoli cells

Question 29

After cellular respiration where is there a higher concentration of oxygen

Answer 29

Blood cells

Question 30

What are the different types of cell transport-

Answer 30

Passive and active transport

Question 31

Sea urchins are prey for both sea otters and large sea stars. When Sea Star Wasting Syndrome drastically reduced sea star populations, both urchins and sea otter populations went up but kelp populations went down. What is the term for these far-reaching consequences of changing one aspect of a food web?

Answer 31

Trophic Cascade

Question 32

Sea otters tend to hunt larger urchins. This exerts a __________ on the urchin populations so that smaller diameter urchins are more likely to survive and reproduce.

Answer 32

Selective

Question 33

When carbon dioxide dissolves in water, it forms

Answer 33

Carbonic acid

Question 34

How does ocean acidification impact the larvae of sea urchins?

Answer 34

stunts their growth

Question 35

What abiotic factor is LEAST LIKELY to limit the growth of kelp forests?

Answer 35

salinity

Question 36

What caused sea otter populations to almost go extinct in the 1800s.

Answer 36

hunted for fur

Question 37

What is a main reason sea otter populations are currently declining?

Answer 37

Orcas lost their usual prey and are now desperately hunting sea otters

Question 38

What impact do the amounts of available energy, water, and oxygen have on an ecosystem?

Answer 38

They act as limiting factors

Question 39

Bird Species A is small while bird Species B is large. Scientists believe that they have been living together in the same type of pine tree for hundreds of years. Which of the following statements is most likely to be true?

Answer 39

the species have different niches

Question 40

Which would INCREASE the carrying capacity of an ecosystem?

Answer 40

increase in available food

Question 41

Observable characteristics of an individual resulting from the interaction of its genes with the environment

Answer 41

phenotype

Question 42

Know how much of a percent increase

Answer 42

subtract the original value from the new value, divide the result by the original value, and then multiply by 100