Answer:
Exclusive features from Protozoa
Explanation:
Protozoa are unique and complex single-celled eucaryot. So, if the discovered microfossil still has some clues of a presence of a nucleus it might be a feature that can be related with only with a protist organism. Also, some protozoa has special anatomy structures like sensory bristles, photoreceptors, cilia, sting darts, etc. In conclusion there might be some features that could lead researchers to find a new extinct protist organism.
The killer whales primarily feed on the secondary consumers in the oceanic food web.
Explanation:
Killer whales are the tertiary consumers and occupy the highest position in the ocean food web. They are predating carnivores and feed on secondary consumers like other fishes, marine animals like leopard seals, sea turtles, dolphins, sea birds, etc. These secondary consumers in turn feed on primary consumers like zooplanktons, small fishes etc which feed on the primary producers like phytoplanktons. The energy flow is highest at the primary producer level and decreases as it goes up to the consumer levels.
Ocean acidification is sometimes called “climate change’s equally evil twin,” and for good reason: it's a significant and harmful consequence of excess carbon dioxide in the atmosphere<span> that we don't see or feel because its effects are happening underwater. At least one-quarter of the carbon dioxide (CO</span>2) released by burning coal, oil and gas doesn't stay in the air, but instead dissolves into the ocean. Since the beginning of the industrial era, the ocean has absorbed some 525 billion tons of CO2<span> from the atmosphere, presently around 22 million tons per day.
This is a scientific fact...
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Answer:
The correct answer is: aerobic respiration -the root cells metabolize the sugar produced during photosynthesis
Explanation:
From the germination of seeds, roots will depend exclusively on energy in the form of photosynthates supplied from the aerial parts of the plant. Photosynthesis takes place in the leaves. Sugar is produced which is transported to all the other plants via phloem tube.Roots absorbs air from the air spaces present between the soil particles and is able to carry out aerobic respiration. The sugar is metabolized and energy is produced.