Answer:
Ponds:
Shallow & warm
A lot of plant and animal life
Many nutrients
Lakes:
Large, deep, cold
Little sunlight near bottom
Plants mainly along the shore
Answer:
plants
Explanation:
all green life gives us oxygen, and in turn we give c02 or carbon dioxide
Answer:
DNA: 2 strands, Deoxyribose, Nucleus, A pairs with T
RNA: 1 strand, Ribose, Nucleus & Cytoplasm, A pairs with U
Explanation:
the three accessory glands: the seminal vessicles, the bulbourrethhral gland, and the prostate
Answer:
they give the lungs a really big surface area. they have moist, thin walls (just one cell thick) they have a lot of tiny blood vessels called capillaries.
The walls of the alveoli are only one cell thick. This makes the exchange surface very thin - shortening the diffusion distance across which gases have to move. Each alveolus is surrounded by blood capillaries which ensure a good blood supply.Adaptations of the alveoli:
Thin walls - alveolar walls are one cell thick providing gases with a short diffusion distance. Moist walls - gases dissolve in the moisture helping them to pass across the gas exchange surface. Permeable walls - allow gases to pass through.
Explanation:
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