The answer would be 4. The shapes that are filled in half are the carriers, the one fully filled in have the condition and the ones that are white are not carriers/dont have condition.
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Answer:
Nitrogen cycle is a biogeochemical cycle that involves the circulation and conversion of nitrogen into different forms among the living and non-living components of the environment. The following are the steps in nitrogen fixation.
1 Nitrogen fixation.
2 Plants absorb nitrates and conduct assimilation.
3 Nitrogen flows through the food chain as a primary consumer eats the plant, and a secondary consumer eats the primary consumer.
4 A consumer releases waste and ammonification occurs to convert ammonia into nitrates and ammonium.
5 Nitrification occurs to convert ammonium into nitrates. Denitrification occurs to release nitrogen back to the atmosphere.
Answer:
b
Explanation:
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Answer:
The practice of physics, math, taxonomy, and more improved because of the scientific revolution.
Answer:
there are tree hypothesis
Explanation:
There are several mechanisms by which multicellularity could have evolved:
1. A group of cells were added in a slug-shaped mass called grex, which was moved as a multicellular unit, as the Myxomycota do.
2. The primitive cell suffered an incomplete division of the cell nucleus generating a cell with multiple nuclei or syncytium. Next, membranes formed around each nucleus and the space was occupied by organelles. This resulted in a group of cells connected in an organism, an observable mechanism in Drosophila.
3. Daughter cells did not separate after cell division, resulting in a conglomeration of identical cells in an organism, which later developed specialized functions. This is observed in embryos of plants, animals and colonial cyanoflagellates.
Should read more about the topic here, google it:
<em>Multicellular development in a choanoflagellate; Stephen R. Fairclough, Mark J. Dayel and Nicole King
</em>
<em>In a Single-Cell Predator, Clues to the Animal Kingdom’s Birth</em>