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3 years ago

For what purposes does phytoplankton use carbon dioxide?

Biology

1 answer:

solniwko [45]3 years ago

8 0

Answer:

Phytoplankton use sunlight, carbon dioxide (CO2) and water, in a process called photosynthesis, to produce organic compounds which they use for food and to make their cells. The waste product of photosynthesis is oxygen.

Explanation:

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HELP!! DNA was isolated from water samples taken from six different sites. This gel

VladimirAG [237]

After running DNA in a gel, bands of different sizes and species might appear. Scientists know silver carp are at North Shore site 1 because one of the bands in lane 1 matches a band in the positive control (Option C).

When DNA was isolated and run in a gel, many bands migrated to different points.

These bands were the different-sized fragments of DNA samples from different species from the six sites.

Researchers wanted to figure out where the silver carp is.

To do it, they needed to identify the bands on the gel that belonged to the silver carp DNA, so they included negative and positive controls to make comparisons.

<h3>Positive and negative Controls</h3>

Negative and positive controls guarantee the interpretations of the results.

The positive control shows the band sizes that belong to the silver carp DNA.

Any band in the sampling sites that matches one of the positive control bands indicates that the species is present at that site.

The negative control is the opposite. It is the absence of the species' DNA.

<h3>Results interpretation</h3>

As we can see, there are four sites where the bands match one of the bands of the positive control. These are,

North shore site 1
Chicago site 1
Calumet site 1
Calumet site 2

This means that at these four sites, the silver carp is present.

So scientists know silver carp are at North Shore site 1 because one of the bands in lane 1 matches a band in the positive control (Option C).

By looking at the lane of the North Shore site 1, we can also see another band (Thinner and grey). But this band does not match either of the positive control bands. This result suggests that the grey band belongs to another species' DNA.

You can learn more about gel electrophoresis at

brainly.com/question/9437877

brainly.com/question/895793

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3 years ago

Describe the connection between limiting factors and invasive spicies

Alina [70]

Some examples of limiting factors are biotic, like food, and mates. Limiting factors can affect the populations of both plant and animal species. An invasive species is an organism that is not indigenous, or native, to a particular area.

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3 years ago

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What component of our skin allows us to sense changes outside of our body, such as temperature and touch?

krok68 [10]

Answer:

Merkel cells located in the epidermis.

It is called sensory function.
The Merkel cells send information to the brain about temperature and touch.
After brain decode that we can feel it.

5 0

3 years ago

List all the subsets of each set. {dog, cat, fish}

Burka [1]

Subsets of {dog, cat, fish} are Ф, {dog}, {cat}, {fish}, {dog, cat}, {dog, fish}, {cat, fish}, {dog, cat, fish}.

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3 years ago

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Name the four things that can happen to move carbon from a plant and return it to the atmosphere

kvv77 [185]

1. Respiration-process by which plants release CO, while they break down the sugar

2. Animals eat plants- They break down sugars and starches by a process of metabolism and the products are energy water, and CO2 molecules.

3. Decomposition-when plants die, their parts (wood, leaves) decay bringing the carbon into the ground

4. Root respiration- respiration that occurs in roots, adds to soil respiration (the amount of CO2 produced through root respiration is determined by the root biomass ).

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3 years ago