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allochka39001 [22]
2 years ago
15

I NEED HELP ASAP! Which of the following is true of variation?

Biology
2 answers:
EastWind [94]2 years ago
6 0

Answer:

all of them are correct

Radda [10]2 years ago
4 0
D.) All of the choices are correct.
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Edxcel alevel biology past papers: some of the blood plasma of individuals who have survived infection wtih Ebola can be collect
beks73 [17]

Answer:

This was the only treatment options adopted for the Ebola in  1995 in the Democratic Republic of Congo. The assumption was that immune response is generated by the virus in the WBC of the infected individuals. These response produce antibodies.

A total if 8 patients were transfused with these blood contained antibodies, but one of these died, the remaining 7 patients survived.

The antibodies were believed to  have  multiplied(produced b-cells) to neutralize the Ebola virus(antigens)  and to ensure the survival of the patients

Explanation:

6 0
3 years ago
Determine the density of the rock using correct significant digits. The mass of the rock is 25.69 g
Angelina_Jolie [31]
The right answer for the question that is being asked and shown above is that:

The density of a certain object can be solved using two parameters: The mass and the volume.
Density = mass / volume.
So, from the given question, we are lacking on what the volume is.
4 0
3 years ago
PLEASE HELP ME NOW!!!! (NOT FOR BEGINNER)
Semenov [28]

Answer:

1. C.

2. D

3. D.

4. D.

Explanation:

1. Landslides can be initiated in slopes already on the verge of movement by rainfall, snowmelt, changes in water level, stream erosion, changes in ground water, earthquakes, volcanic activity, disturbance by human activities, or any combination of these factors.

2. Landslides are geologic phenomena that can happen suddenly or through imperceptively slow downslope movement. ... A "translational" landslide can happen rapidly and result in all of the soil on a hillside being stripped off and filling the area at the bottom of the slope.

3. Sedimentary rock contains fossils because it was built up layer upon layer, often trapping and preserving animals, plants, footprints, and more within the layers of sediment.

4. The Uplift of the Colorado Plateau. The Kaibab Limestone, the uppermost layer of rock at Grand Canyon, was formed at the bottom of the ocean. ... The action of plate tectonics lifted the rocks high and flat, creating a plateau through which the Colorado River could cut down.

<em>Hope this helps! :D</em>

6 0
2 years ago
Read 2 more answers
if a retrovirus could infect one of any of these kinds of cells, which would amplify it the most within the first 2 hours?
ryzh [129]

Cancer cells are the best target to amplify the most within first 2 hours. Highly oncogenic retroviruses are recombinants of viral and host genes.

Retroviruses are viruses with RNA rather than DNA in their genomes that infect cancer cells. Reverse transcriptase is an enzyme that is used to integrate into the DNA of the host cells. It is enhanced to a greater extent the more cell replication takes place. More retroviruses are then produced by the cell, infecting further cells. Many diseases, including AIDS and various types of cancer, are linked to retroviruses.

Low-incidence cancer-causing retroviruses lack inserted host information. Instead, it seems that they alter the expression of potentially carcinogenic host genes, which in turn results in cancer. Retroviruses incorporate proviral DNA into the chromosomal DNA of their host during the course of their regular life cycle. Integrations take place across numerous locations. Although most integrations are benign, some can cause cancer. Many of these seem to encode tyrosine phosphorylating protein kinases.

Learn more about Cancer here:

brainly.com/question/14945792

#SPJ4

4 0
1 year ago
Iv u answer this ? youll get points
Pachacha [2.7K]

the answer is A. covalent bonds

3 0
3 years ago
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