The common characteristic of those two organisms is hard spherical shells (exoskeleton).
Foraminiferans are single cell marine eukaryotes divided into granular endoplasm and transparent ectoplasm. Foraminiferans are enveloped with tests, hard shells, usually composed of calcium carbonate (sometimes from organic compounds or silica).
Coccolithophore is a unicellular, eukaryotic alga with special calcium carbonate plates (or scales) of uncertain function (coccoliths). Each unicellular alga is enclosed in its own collection of coccoliths, the which make up its exoskeleton- coccosphere.
Answer:
the fact that rod functioning predominates during dark adaptation, therefore poor acuity
Explanation:
- Rods and cones are the photoreceptor cells present in the eye that perform the function of converting the light received into signals that stimulate the biological processes.
- Out of the rods and cones, the rods are more sensitive and they are so sensitive that they can be activated even under low light conditions.
- However the cones can be stimulated only under bright light conditions, but the visual acuity is higher for the cones as compared to the rods.
- <em>Therefore under conditions of dim light, the rods are activated and hence it results in a poor visual acuity and a person experiences difficulty in reading. </em>
d. carbon atoms in ocean water
Explanation:
The carbon atoms in ocean water is one of the ways through which carbon is sequestered in nature.
Sequestration of carbon implies the storage of carbon either naturally or artificially for a very long time.
Carbon sequestration cuts off carbon from the normal biogeochemical cycle and stores it in natural reservoirs for a very long duration.
- In nature, carbon is sequestered a whole lot through biological and chemical activities.
- Phytoplanktons are food producers. When consumed by higher organisms, their organic materials which contains carbon can become sequestered when the consumer dies and falls to the bottom of the ocean.
- Organisms that used carbonate to manufacture their shells in the ocean also sequesters carbon.
Learn more:
biogeochemical cycle brainly.com/question/4217448
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Answer:
Direct relationship.
Explanation:
There is direct relationship between growth rates and time which means growth rate of organism increases with the passage of time. Direct relationship means if one increases the other automatically increases and if one decreases, the other also decreases. The growth of bacteria becomes double when more time passes and vice versa. After every 20 minutes, the population of bacteria becomes double.
<span>Unlike vascular plants, non-vascular plants do not have tissue specialised fro transport of fluids, so</span> they cannot control the rate of water loss. However, they have simple tissues that can perform this function. They also lack in true leaves, seeds, flowers, and roots. They usually live in moist environment so they can absorb water more efficiently.
