Question

name:
science 7
lp 7 day 2
use the information below to answer question 6.
javier is growing a vegetable garden and enjoys the fresh vegetables that come from it. as he weeds the garden one afternoon, he remembers how plants are linked to both the oxygen and carbon cycles.
____ 6. in what ways are plants involved in the oxygen and carbon cycles?
a. photosynthesis, precipitation, nitrogen fixation
b. evaporation, making proteins, decomposition
c. respiration, condensation, free nitrogen
d. photosynthesis, respiration, decomposition
use the information and the chart below to answer question 7.
dr. hernandez is a biologist investigating the ecosystem of the lightning whelk, a sea snail found along the atlantic coast. she collects data about the whelk and its relationship to other organisms in its ocean ecosystem. she records the data in the table.

organism	energy role	food source
tiger shark	fourth - level consumer	loggerhead turtles
phytoplankton	producer	photosynthesis
loggerhead turtle	third - level consumer	whelks
clam	first - level consumer	phytoplankton

1. use information in the table to complete the model showing the flow of energy among the organisms. draw lines to indicate the order in which the organisms should appear.

Explanation:

Question 6

To solve this, we analyze each option:

• Option A: Precipitation (water cycle) and nitrogen fixation (nitrogen cycle) are not part of O₂/C cycles. Eliminate.
• Option B: Evaporation (water cycle) and making proteins (not a cycle process) are irrelevant. Eliminate.
• Option C: Condensation (water cycle) and free nitrogen (nitrogen cycle) don’t relate. Eliminate.
• Option D: Photosynthesis (plants make O₂ and use CO₂), respiration (plants release CO₂), and decomposition (releases CO₂ from dead plants) all involve O₂/CO₂ cycles. Correct.

1. Identify Producers: Phytoplankton is a producer (uses photosynthesis), so it starts the energy flow.
2. First - level Consumer: Clam eats Phytoplankton (first - level consumer).
3. Second - level Consumer: Whelk eats Clams (second - level consumer, given in the table).
4. Third - level Consumer: Loggerhead turtle eats Whelks (third - level consumer).
5. Fourth - level Consumer: Tiger shark eats Loggerhead turtles (fourth - level consumer).

So the order is: Phytoplankton → Clam → Whelk → Loggerhead turtle → Tiger shark.

Answer:

D. photosynthesis, respiration, decomposition

Question 7