Nelly was reading about ecological pesticides. She found a website that said that skeletons of some organisms settle as sediments in the ocean. They are then used as pesticides because they are abrasive against pests. Which organism is the article discussing?A. dinoflagellates
B. diatoms
C. green algae
D. euglenoids
E. amoeba

Answers

Answer 1

Answer:

The answer is B. When diatoms die and fall off the ocean column to the ocean floor, they become part of sediments over time. When they are mined and exposed, they turn to a diatomite. Diatomaceous earth is significant as a pest repellant because of its hygroscopic property and has very abrasive particle hence it absorbs the water-protective fats and oils from the outermost layer of insects.

Answer 2

Answer:

B. diatoms

(on plato)

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How do organisms benefit from adaptations?

Answers

Organisms benefit from adaptations because in order for them to survive, they need to adapt to their surroundings. For example, if a shark didnt have fins or a tail, it wouldnt be able to swim and catch its prey.

Organisms benefit from adaptation by surviving longer, reproduction, blending with their environment, and evolving.

This phrase, found in Darwin's Origin of Species, suggests that species adapt and change by natural selection and the changes aid in the survival of the organism.

Answers

I think the answer is "survival of the fittest" or in other words, organisms of the same species exhibit varieties and the favorable varieties to the particular environmental conditions which give an advantage to that variety will be naturally selected as they will survive and propagate whereas the poor varieties will perish eventually.

Answer:

fitness

Explanation:

took the vocab on utp

A truck whose bed is 2.5 m long 1.5 m wide and 1.0 m high is delivering sand for sand sculpture competition. About how many trips must the truck make to deliver 7m of sand

Answers

Assuming you mean 7m^3 (meters cubed) of Sand:
Volume = base x width x height
The truck can hold a volume of 2.5 x 1.5 x 1 = 3.75 m^3.
To move 7 m^3 of sand, the truck will have the make two trips. The first trip, the truck will move 3.75 m^3 of sand, and on the second, it will move 7-3.75=3.25 m^3.

if the low power objective and the eyepiece both have a magnifying power of 10x the total magnifying power of the microscope is

Answers

100x, all you have to do is multiply them together to get your answer.

Where does photosynthesis take place in a plants cell?

Answers

The photosynthesis occurs in the chloroplasts inside of the plants cell

In the chloroplasts, which have chlorophyll

What does selectively permeable membrane mean

Answers

Answer:

The answer is: It means it is a membrane that will allow certain molecules or ions to pass through it by means of active or passive transport.

Explanation:

All cells are enclosed with a cell membrane. The term, selectively permeable, refers to :

the membrane allows some substances or molecules to enter the cells, and others to be prevented from entering. It also allows substances to leave the cell.

This process can be done by :

Active transport -requires the cell to expend energy to move the materials.

Passive transport- it can be done without using cellular energy.

Selective permeability membrane is the membrane that allows certain organisms to come in and out of the cell.

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