Identify two environmental factors that affect the germination of seeds. Then list the adaptation(s) of seeds to deal with each environmental factor. What will be an ideal response?
1. Low oxygen levels: rice plants carry out alcoholic fermentation, which enables the
seeds/seedlings to stay alive under anaerobic conditions
2. Low temperatures: apple seeds require low temperatures to “sense” winter so that they will
then germinate in the more hospitable environments of spring
3. Light: lettuce seeds require light in order to germinate, which ensures that the seedling will
photosynthesize instead of depleting the small amounts of food stored in the seed
4. Water: Certain desert plants require water to wash out the abscisic acid, which ensures that
there will be sufficient water available for seeding growth
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In C3 plants, the ____ are typically closed at night and open during the daytime to allow for gas exchange
a. grana b. stomata c. cuticles d. epidermis e. spongy mesophyll
Why are large amounts of red meat and butter not healthy choices in the diet?
A) They contain a lot of saturated fat. B) They contain too much protein. C) Most people cannot digest them. D) They contain excessive amounts of fiber.
Why do we have storage macromolecules, such as fats, in our bodies?
Why do we have storage macromolecules, such as fats, in our bodies?
What building blocks make up proteins?
What will be an ideal response?