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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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In bacteriophage lambda, the choice between the lytic and lysogenic pathways is often thought of as a sort of race between the p
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What pathway would likely predominate in a mutant in which ci was overexpressed relative to a wild-type virus? - Lytic pathway; when the virus infects the cell, that is, it gets into it, clones or forms thousands of viruses and then breaks the capsid and continues parasitizing other cells to follow the same procedure.<span>in a mutant in which ci was underexpressed relative to a wild-type virus?</span> Lysogenic; that is when the genetic material of the virus is coupled to the genetic material of the cell, then the cells b, daughters of this, will be possessors of the virus (genetically).
4 0
3 years ago
Which is an advantage of genetic engineering?
trapecia [35]

Answer:

You want thicc thighs there you go big nose here you go big ears here you go by breeding with the qualities they want they will get a dog that looks how they want by breeding things with certain qualities together.In genetic engineering you can elimnate health risk and replace it with something else.

7 0
4 years ago
We live in the Cenozoic era, and scientists know more about this era and the epochs it's divided into than any other time period
mel-nik [20]

Answer:

D. We know more about the Cenozoic era because this the most recent time period in the history of the Earth, and we have more information available to study.

Explanation:

The Cenozoic era is the era that is by far the best studied and known by the scientists. The main reason for this is that this era is the most recent one, and it is actually the era we live in. Because it is the most recent era, the Cenozoic is abundant with lot of evidence of what has happened in it. The fossil records are very rich as the fossils didn't had that much time to totally decompose. The rock layers are much younger, so they contain much more detailed evidence of the plant life, climate, changes in the environment. The oceanic crust is also in abundance, which is not the case with the other eras as the oceanic crust is constantly suducted.

6 0
3 years ago
Imagine that you live in the midlatitudes—say, Virginia—and a cyclone passes by. What is the correct sequence of events?
Bas_tet [7]

Answer:

First a warm front then a cold front.

Explanation:

Cyclone may be defined as the amount of the large air and move around the area that has low atmospheric pressure. The cyclone can cause the large disturbances to the living organisms.

The cyclone formation occurs at the low polar vertices. The two main types of front are related to the cyclone. The warm front first form for the air movement. This warm front is later replaced by the formation of the cold front of that cyclone.

Thus, the correct answer is option (3).

4 0
3 years ago
What are sediments that can be found in all sedimentary rocks
Georgia [21]
I'm gonna guess sand...
4 0
3 years ago
Read 2 more answers
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