photosynthesis
During photosynthesis, plants take in this gas from the air.
carbon dioxide
In a food web, all usable energy begins with this source.
the sun
What does biodiversity mean?
the variety of living things in an area
What is a food web?
a large network of many different food chains
what sphere does carbon start?
atmosphere
During photosynthesis, plants give off this gas into the air.
oxygen
what trophic level would a rabbit be under?
primary consumer
Why can invasive species lower biodiversity of an ecosystem?
They can outcompete native species for space, food, or other resources
Why do producers have the most energy?
they capture energy from the sun
What is one way carbon moves from the air into living things?
Plants take in carbon dioxide during photosynthesis
Name the three things a plant needs to carry out photosynthesis. (inputs)
How will eating/drinking a ton of carbohydrates influence your physical activity events?
they give you energy
What is one example of a human activity that can decrease biodiversity?
habitat destruction, deforestation, poaching, pollution
When organisms compete for the same resource, what type of interaction is taking place?
A. Competition
B. Parasitism
A: Competition
After an organism dies, through what process can its carbon re-enter the ecosystem?
decomposition
Name two substances(outputs) made during photosynthesis.
glucose and oxygen
ATP is mainly produced during what process?
cellular respiration
Why are there typically more grass plants than hawks in a forest ecosystem?
grass are producers that get energy directly from the sun and support all higher trophic levels
how much energy is transferred to each trophic level?
10%
what process gets carbon from the biosphere back to the atmosphere?
cellular respiration or decomposition
if photosynthesis slows down, what happens to the amount of sugar a plant makes?
the amount of sugar it's producing will decrease
Plants do both photosynthesis and cellular respiration.
what one stores and which one releases?
Photosynthesis stores energy in sugar, while cellular respiration releases energy from sugar to make ATP
A scientist observes that secondary consumers are decreasing. Which is the MOST likely cause?
A decrease in primary consumers (less food available)
A scientist observes a decrease in available energy in an ecosystem. Which trophic level is MOST likely affected first?
producers
Give one example of carbon cycling through living things.
A plant takes in carbon dioxide, then an animal eats the plant