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What happens to energy in an ecosystem when it reaches the top of the food chain?
The energy is transferred to the soil and recycled back to the producers
A food chain incules W,X,Y,Z. If W out numbers X, which outnumbers Y, which outnumbers Z, at which trophic level in the food chain is Y?
Secondary
What happens during the Calvin cycle of photosynthesis?
Gluecose is synthesized from Carbon Dioxide
What is not a function of plant roots?
Delivering nutrients to the leaves
What plant hormones control certain tropisms?
Auxins
What is not controlled by plant hormones?
Photosynthesis
What is the function of guard cells on a leaf?
They allow carbon dioxide into the leaf and water out of
What most accuratley describes the process of photosynthesis?
It requires energy from the sun
What is the reaosn why animal cells can't carry out photosynthesis?
They lack chloroplasts
What is not contained in a seed before it germinates?
Photosynthesizing leaves
How does a seed relate to reproduction?
They are products of sexual reproduction in plants
What vascular tissue in plants transports water and nutrients from the roots to the stems then to the leaves?
Xylem
What do autotrophs do?
Make their own food from the ground
what do we depends of plants for?
clothes, food, shelter
Are leave sthe main organ of photosynthesis?
Yes
How do planst obtain energy?
They eat
