Bio test

Question 1

definition of autotroph

Answer 1

Harvests energy from inorganic substances

Question 2

Definition of Biomass

Answer 2

total mass of organisms in a given area

Question 3

Definition of biome

Answer 3

an area classified to a species that lives in that population

Question 4

definition of carrying Compacity

Answer 4

The max amount or organisms that can live in that area.

Question 5

definition of expotential growth

Answer 5

growth of a population increasing over time s shaped curve

Question 6

definition of logistic growth

Answer 6

a growth of a population decreasing over time s shaped curve

Question 7

ecology

Answer 7

relations to organisms and there physical surounding

Question 8

ecosystem

Answer 8

interacting organisms and there physical enviorment

Question 9

Symbiosis

Answer 9

mutual advantage taken by both both organisms

Question 10

Comunalism

Answer 10

a system in which one organism benefits and thee other recieves no benefit or harm

Question 11

Mutualism

Answer 11

the belefe that mutual dependence is the key to well being

Question 12

succesion

Answer 12

the change a species faces over time

Question 13

food chain

Answer 13

a higharchy of organism dependent on each other for food.

Question 14

food web

Answer 14

a collection of food chanes

Question 15

Explain energy transfer

Answer 15

Only 10 percent of calories are passed on during consumption the rest are either used by the organism or lost in heat

Question 16

Explain the carbon cycle

Answer 16

Producers pull carbon from the air and ubsorb it consumers eat the plants. The consumers die and decompose millions of years later they become fossil fuel

Question 17

Explain the Nitrogen cycle

Answer 17

Nitrogen is taken from the air by bacteris into dirt that is obsorbed by plants animals eat the plants and die and decompose. Through the process of nitrogen fixation. nitrogen becomes gass again.a

Question 18

Reliabilty versus validity

Answer 18

Reliability is repeatabitly. Validity is acuracy. We look at quantitive dats for Reliability and qualitive data for accuracy

Question 19

Trophic levels

Answer 19

1. producers. 2.primary consumers. 3. secoundary consumers. 4 .teritory consumers

Question 20

Explain the ecological pyramid

Answer 20

1. 100 percent energy producers. 2. 10 percent energy primary consumers . 3. 1 percent energy secoundary consmers. 4. 0.1 percent energy teritory consumers.

Question 21

Bio mass pyramid

Answer 21

1.producers.2 herbevore. 3. primary carnivore. 4. top carnivoire

Question 22

Population density

Answer 22

number of orgainisms per square unit area.

Question 23

Abiotic

Answer 23

nonliving componanants to an ecosystem.

Question 24

biotic

Answer 24

living componants to an ecosystem

Question 25

niche

Answer 25

full range of consitions in which an orgainism lives.