Answer:
The floating leaves had stomata on the upper surface, were thicker and contained more chlorophyll per surface area than the submerged leaves.
Explanation:
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The following events will be catastrophic to an ecosystem:
1. Al volcanic eruption
2. An oil spill and
3. The introduction of a species that reproduce quickly.
A volcanic eruption will disrupt both the plants and the animal activities in a particular ecosystem and lead to loss of habitation. Depending on the extent of the volcanic eruption, a whole ecosystem can be completely wipe out. An oil spill is very poisonous to aquatic ecosystem and it leads to the death of the organisms that live in the water. Introducing a specie that reproduce quickly into an ecosystem will lead to fast taking over of the ecosystem by that specie to the detriment of other species.
C- mushroom
Mushrooms break down (decompose) dead cells of animals and plants.
Algae, lichen, and oak trees go through photosynthesis and are producers.
Answer:
1 calorie heat = 4. 2 Joule
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A.Afarensis,A. Africans, H.Habilis, H.Erectus, H.Sapiens