ScienceBiologyBiology 3-4
Please enter something

Biology 3-4

Myla Baker avatar Myla Baker
25 July 2022
4.7 (114 reviews)
39 test answers

Unlock all answers in this set

Unlock answers (35)
question
Ecology is the study of what?
answer
interactions among organisms and between organisms and their physical environment
question
Know the levels of organization within Ecology
answer
species population community ecosystem biome
question
What are the 3 ecological Methodists ecologist use?
answer
observation experimenting modeling
question
Are plants primary producers or consumers?
answer
producers
question
How do most primary producers make their own food?
answer
light energy
question
Does chemosynthetic bacteria require sunlight to live?
answer
no
question
Know difference between food chain and food web.
answer
chain-series of steps in which organisms transfer energy by eating and being eaten web-complicated feeding relationship
question
What is the total amount of living tissue within a given trophic level called?
answer
biomass
question
What is another name for a producer? Consumer?
answer
autotroph heterotroph
question
Know the difference between the types of consumers and what they eat?
answer
carnivore-meat omnivore-vegitation and meat herbivore-vegitation detritivore- dead plant and animal remains decomposer-fungi and bacteria
question
What is the term for each step in the transfer of energy & matter within a food web?
answer
trophic level
question
What are the 3 ecological pyramids?
answer
numbers,energy, biomass
question
What percent of energy is passed on to the next trophic level?
answer
10%
question
The energy that is not being stored on passed on to the next trophic level goes where?
answer
to the bodies of the organisms at the next level
question
How does matter cycle through the biosphere?
answer
biogeochemical cycles
question
Is matter created, destroyed or transformed?
answer
transformed
question
Which cycle is the repeated movement of water between Earth's surface & the atmosphere?
answer
water cycle
question
What is the difference between evaporation & transpiration?
answer
transpiration happens with plants specifically
question
Carbon cycles through the biosphere in all of the following processes EXCEPT: photosynthesis, transpiration, burning of fossil fuels, or decomposition of plants & animals?
answer
transpiration
question
Nitrogen fixation is carried out primarily by what?
answer
bacteria
question
Which of these has a direct role in the nitrogen cycle: bacteria, legumes, decomposers, or all of them?
answer
ALL OF THEM
question
Why do organisms need nutrients?
answer
to carry out life functions
question
How does energy move through an ecosystem? How does matter?
answer
energy moves through one direction while matter is recycled
question
Nutrients are circulated through the biosphere by what processes?
answer
carbon,oxygen,nitrogen,and phosphorus cycles
question
What occurs if a lake receives a large input of a limiting nutrient?
answer
there might be an algal bloom, or a dramatic increase in the amount of in the amount of algae and other primary producers.
question
Phosphorous is important for living things because living organisms need it to form what?
answer
DNA and RNA
question
What is the difference between abiotic & biotic factors?
answer
abiotic- nonliving biotic- living
question
What is at the base of ALL ecological pyramids?
answer
producers
question
Which biome has the lowest amount of precipitation annually?
answer
desert
question
In a tropical rain forest, the dense covering formed by the leafy tops of tall trees is called?
answer
canopy
question
Which biome has grasses that are high in silica content which makes them less appetizing to grazing animals?
answer
Tropical Grassland/Savanna/Shrubland
question
What 2 biomes have the least precipitation?
answer
desert and tropical grassland
question
Which biome will animals reduce their need for water by entering long periods of inactivity called estivation?
answer
tropical dry forest
question
What gas do producers release into the atmosphere during photosynthesis?
answer
oxygen
question
What happens to the amount of biomass as it moves through food web/chains?
answer
decreases
question
Scientists classify nitrogen, carbon, phosphorous, and water cycles as _________ cycles.
answer
biogeochemical cycles
question
What process during the water cycle occurs between transpiration & precipitation?
answer
water seeps into ground/roots
question
What is runoff?
answer
any water that is not absorbed into the ground or doesn't evaporate
question
How are seepage and transpiration related?
answer
Water seeps through soil and into the ground water. Roots of trees and plants take the water up through their roots. Plants release the water through the process of transpiration. Both seepage and transpiration are parts of the water cycle.