Biology unit 2 study guide2025 LATEST
QUESTIONS AND DETAILS ANSWERS
GRADED A+
What term describes the branch of biology that deals with interactions between
species and their environment? - {ASNWER}-Ecology
What term describes the living organisms in an ecosystem? Give three examples
of these factors. - {ASNWER}-biotic - plants, animas, bacteria
What term describes the non-living things in an ecosystem? Give three examples
of these factors. - {ASNWER}-Abiotic - water, sun-light, rocks
What term describes all the ecosystems on Earth? - {ASNWER}-Biosphere
What term describes a group of the same species living in the same area? -
{ASNWER}-Population
What term describes an individual living thing? - {ASNWER}-Organism
What term describes different populations living in the same area? - {ASNWER}-
Community
,What term describes many populations living together with their non-living
environment? - {ASNWER}-Ecosystem
What term describes where an organism lives and is role (what it does there) in
the community? - {ASNWER}-Niche
What is the main source of energy for all life on earth? - {ASNWER}-The sun
What term refers to organisms that make their own food? - {ASNWER}-
Producer/autotrophs
What term refers to organisms that must eat other organisms to obtain food? -
{ASNWER}-Consumer/heterotrophs
What term refers to organisms that obtain their energy by breaking down dead
and decaying matter? - {ASNWER}-Decomposers
For each of the following organisms tell whether they are considered producers,
consumers, and/or decomposers.
a. Plants
b. Bacteria
c. Flies
d. Mushrooms - {ASNWER}-a. Plants > Producers
c. Bacteria > Decomposer
b. Flies > Consumers
d. Mushrooms > Decomposer
, What is the difference between an herbivore, a carnivore, and an omnivore? -
{ASNWER}-Herbivore - eats plants
Carnivore - eats meat (other animas)
Omnivore - eats both
What term describes each step or level in the transfer of energy and matter within
a biological community? - {ASNWER}-Trophic level
What is a food chain? - {ASNWER}-Single flow of energy movement in a ecosystem
Create a food chain using the following organisms: mouse, grass, hawk, snake. -
{ASNWER}-grass -> mouse -> snake -> hawk
Which direction does energy flow and what happens to the amount of energy as it
flows through a food chain? - {ASNWER}-One direction and decreases
How much energy is passed on to the next trophic level? - {ASNWER}-10%
What is a food web? - {ASNWER}-Several interconnected food chains
How much energy is passed on to the next trophic level in a food chain, web, or
pyramid? - {ASNWER}-10%
How much energy is left behind and what happens to it? - {ASNWER}-90% is left
and the organism uses it as heat
QUESTIONS AND DETAILS ANSWERS
GRADED A+
What term describes the branch of biology that deals with interactions between
species and their environment? - {ASNWER}-Ecology
What term describes the living organisms in an ecosystem? Give three examples
of these factors. - {ASNWER}-biotic - plants, animas, bacteria
What term describes the non-living things in an ecosystem? Give three examples
of these factors. - {ASNWER}-Abiotic - water, sun-light, rocks
What term describes all the ecosystems on Earth? - {ASNWER}-Biosphere
What term describes a group of the same species living in the same area? -
{ASNWER}-Population
What term describes an individual living thing? - {ASNWER}-Organism
What term describes different populations living in the same area? - {ASNWER}-
Community
,What term describes many populations living together with their non-living
environment? - {ASNWER}-Ecosystem
What term describes where an organism lives and is role (what it does there) in
the community? - {ASNWER}-Niche
What is the main source of energy for all life on earth? - {ASNWER}-The sun
What term refers to organisms that make their own food? - {ASNWER}-
Producer/autotrophs
What term refers to organisms that must eat other organisms to obtain food? -
{ASNWER}-Consumer/heterotrophs
What term refers to organisms that obtain their energy by breaking down dead
and decaying matter? - {ASNWER}-Decomposers
For each of the following organisms tell whether they are considered producers,
consumers, and/or decomposers.
a. Plants
b. Bacteria
c. Flies
d. Mushrooms - {ASNWER}-a. Plants > Producers
c. Bacteria > Decomposer
b. Flies > Consumers
d. Mushrooms > Decomposer
, What is the difference between an herbivore, a carnivore, and an omnivore? -
{ASNWER}-Herbivore - eats plants
Carnivore - eats meat (other animas)
Omnivore - eats both
What term describes each step or level in the transfer of energy and matter within
a biological community? - {ASNWER}-Trophic level
What is a food chain? - {ASNWER}-Single flow of energy movement in a ecosystem
Create a food chain using the following organisms: mouse, grass, hawk, snake. -
{ASNWER}-grass -> mouse -> snake -> hawk
Which direction does energy flow and what happens to the amount of energy as it
flows through a food chain? - {ASNWER}-One direction and decreases
How much energy is passed on to the next trophic level? - {ASNWER}-10%
What is a food web? - {ASNWER}-Several interconnected food chains
How much energy is passed on to the next trophic level in a food chain, web, or
pyramid? - {ASNWER}-10%
How much energy is left behind and what happens to it? - {ASNWER}-90% is left
and the organism uses it as heat
