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Contact [7]
3 years ago
11

Nelly was reading about ecological pesticides. She found a website that said that skeletons of some organisms settle as sediment

s in the ocean. They are then used as pesticides because they are abrasive against pests. Which organism is the article discussing?
Biology
1 answer:
aleksley [76]3 years ago
5 0

Answer:

Diatoms

Explanation:

Diatoms are a photosynthetic eukaryotic phytoplankton that virtually found in all waterways, fresh waters and  oceans, and also in most soils on earth. Diatoms play a very important role in the global carbon cycle. Diatoms are single-celled algae that has a characteristics cell wall that is made up of transparent opaline silicia that are elegantly sculpted.

When diatoms die, their shell or skeleton that is composed of silica, do not decay, but settle at the bottom of oceans as sediments to form what is often referred to as diatomaceous earth. It is this diatomaceous earth deposit that is then converted to diatomite powder, which is used as pesticides against insects such as ants, cockroaches, bedbugs and some other pests.

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There is a 50% probability that the flowers of a plant with pink flowers parents will have pink flowers due to incomplete dominance.

The genotypes and phenotypes that we will employ to address this issue are as follows:

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They would have the RW genotype as the first parent plant is pink. They would have the WW genotype because the other parent is white. When the Pink flower parents are crossed, the children that might be expected from this cross

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The progeny will be : 1 RR (Red), 2 RW (Pink) and 1 WW (White)

This shows that there is a 50% probability that the progeny will have the RW genotype and thus the pink phenotype. Additionally, we can observe that there is a 25% likelihood that the progeny will have the WW and RR genotype and the white and Red phenotype.

Learn more about the Incomplete dominance with the help of the given link:

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