Which statement best summarizes 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
15
A food chain includes species W, X, Y, and Z. In terms of the number of individuals, species W outnumbers species X, which outnumbers species Y, which outnumbers species Z. At which trophic level in the food chain is species Y?
Secondary Consumer
15
Which of the following most accurately describes the process of photosynthesis?
It requires energy from the sun
15
Animal cells cannot carry out photosynthesis because they lack ___________________.
Chloroplasts
15
What happens during the Calvin cycle of photosynthesis?
Glucose is synthesized from carbon dioxide
5
What is not contained in a seed before it germinates?
Photosynthesizing leaves
15
What is not a function of plant roots?
delivering nutrients to the live
20
Identify how seeds relate to reproduction.
They are products of sexual reproduction in plants
15
What plant hormones controls certain tropisms?
Auxins
15
Which of the following is not controlled by plant hormones?
Photosynthesis
15
What is the function of guard cells on a leaf?
They allow Carbon Dioxide into the leaf and water out of it
15
Which vascular tissue in plants transports water and nutrients from the roots to the stems and then to the leaves?
Xylem
15
What is the process plants use to make food?
Photosynthesis
15
True or False? Oxygen is released as a byproduct of photosynthesis