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Penn Foster - Biology Lesson 5, Plant and Animal Systems, and Behavior, EXAM (700042RR) Already Passed $9.99
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Penn Foster - Biology Lesson 5, Plant and Animal Systems, and Behavior, EXAM (700042RR) Already Passed What are the main functions of the plant vascular system? To transport water, nutrients, and sugars throughout the plant. What are the two main types of vascular tissues in plants, and w...

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  • September 6, 2024
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Penn Foster - Biology Lesson 5, Plant
and Animal Systems, and Behavior,
EXAM (700042RR) Already Passed

What are the main functions of the plant vascular system?


✔✔ To transport water, nutrients, and sugars throughout the plant.




What are the two main types of vascular tissues in plants, and what are their functions?


✔✔ Xylem transports water and minerals from roots to other parts of the plant, while phloem

transports sugars and other organic nutrients.




What is the role of stomata in plants?


✔✔ To regulate gas exchange and water loss by opening and closing pores on the leaf surface.




How do plant roots contribute to overall plant health?


✔✔ By anchoring the plant, absorbing water and nutrients from the soil, and storing energy.




What is the primary function of the animal circulatory system?


✔✔ To transport oxygen, nutrients, hormones, and waste products throughout the body.

1

, What is the difference between an open and a closed circulatory system in animals?


✔✔ In an open circulatory system, hemolymph is not confined to blood vessels and flows freely

through tissues, while in a closed circulatory system, blood is contained within vessels and

pumped throughout the body.




What are the major components of the human respiratory system?


✔✔ The major components include the nose, trachea, bronchi, lungs, and alveoli.




What is the function of alveoli in the lungs?


✔✔ To facilitate the exchange of oxygen and carbon dioxide between the air and the

bloodstream.




What are the primary functions of the human digestive system?


✔✔ To break down food into nutrients, absorb these nutrients into the bloodstream, and

eliminate waste products.




What is the role of enzymes in digestion?


✔✔ To speed up the chemical breakdown of food into simpler molecules.

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