Food Chains/Webs
How much energy flows from one level of the food chain to the next?
10%
What is produced during photosynthesis?
Oxygen and sugar
This part is brightly colored and attracts pollinators.
Petals
Positive Tropism
What does the xylem carry?
Water
Grass > mouse > snake > hawk
What level on a food chain has the least amount of usable energy?
The hawk
What is the first step of photosynthesis?
Light is absorbed by the leaves.
What part of the flower protects it during the budding stage?
The sepals
When a plant reacts to light.
Phototropism
What does the phloem carry?
Food (sugar)
A population of owls recently decreased in size. Which would most likely explain this: a decrease in their food supply, or a decrease in their predators most likely explain this?
A decrease in their food supply
Where does photosynthesis take place?
In the chlorophyll of the leaves.
What is it called when only one flower is needed for pollination?
Self pollination
This biome is the only one with 4 seasons.
Deciduous forest
Which direction does the xylem flow?
Upward from the roots to the leaves.
What process makes it possible for nutrients from organic material to be added back to soil?
Decomposition
Sunlight, Water and ___________ are needed for photosynthesis to occur.
Carbon dioxide
anther, Filament, stigma, style, ovary, ovule
Why is it beneficial for plants in the desert to store water?
so they can survive a long time between rain storms.
What are the waste products of cellular respiration?
Carbon dioxide, water, and energy
What is the difference between a food chain and a food web.
A food web is made up of multiple food chains.
_______ are where carbon dioxide is absorbed in the leaf.
Stomata
What it the process that takes place when the pollen tubes combine with the ovule inside the ovary?
Fertilization
The venus fly trap is an example of what kind of tropism.
Positive Thigmotropism
Which process has to happen first in the plant, photosynthesis or cellular respiration?