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Ray Of Light [21]
3 years ago
11

What is one way that cancer can form?

Biology
2 answers:
zalisa [80]3 years ago
8 0

One way that cancer can form is when abnormal cells have uncontrolled growth, old cells die and get added on to which I believe creates tumors.

JulijaS [17]3 years ago
4 0

Answer:

Damage leaves the cell without the need to kill itself and begins to duplicate without removing older cells from the system.

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Which fossil occurs on the most landmasses what does this suggest about when the continents broke up
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Answer:

Glossopteris and Lystrosaurus

Explanation:

Glossopteris is an ancient plant flora and Lystrosaurus is a fossil fauna, and both are found in many of the landmasses on earth. The Glossopteris flora appeared about 300 to 200 million years back and the Lystrosaurus appeared about 250 million years back on earth. They both existed from the time of late Permian to early Triassic age.

Both these fossils played an important role in understanding the continental drift theory or the plate tectonic theory. This evidence enabled geologists to understand how the continents have moved across the large ocean basin from one place to another and at what rate they are drifting currently. It helped in understanding how the super-continent Pangaea had broken into Laurasia and Gondwanaland, and further broken into the present location of the plates.

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3 years ago
you can tell that this is an image of a dna nucleotide and not an rna nucleotide because you see a _____.
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I don't know what the picture is but I had a question like this on my packet and I saw a <span>sugar with two, and not three, oxygen atoms</span>
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3 years ago
Type B blood has type B markers on red blood cells, .......... antibodies in the plasma, and can donate blood to types........
just olya [345]
First select : Anti-B
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2 years ago
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Write the hardy-weinberg equation and list the conditions a population must meet to maintain the hardy weinberg equilibrium. exp
Artyom0805 [142]

1. p^{2} +2pq+q^{2} =1 where in a population:

p - the frequency of the <em>A</em> allele

q - the frequency of the <em>a</em> allele

p^{2} - the frequency of the <em>AA</em> homozygous genotype

q^{2} - the frequency of the <em>aa</em> homozygous genotype

2pq - the frequency of the <em>Aa</em> heterozygous genotype

A population at equilibrium will have the sum of all the alleles at the locus equal to 1.

2. Conditions:

A. The breeding population must be large

B. No natural selection

C. The mating must occur randomly

D. No mutations to cause changes in allelic frequency.

E. No changes in allelic frequency due to immigration or emigration.

3. By comparing the actual genetic structure of a population with what we would expect from a Hardy-Weinberg equilibrium, we can determine how much it deviates from the baseline provided by the mathematical model. Depending on how large the deviation is, one or more of the model's assumptions are being violated. Thus, we can attempt to determine which one.

3 0
2 years ago
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How can a scientist test a hypothesis if it is not possible to do a controlled experiment.
serious [3.7K]

Answer:

In an experiment, the researcher needs to have a control group with an experimental group where both groups are identical in every way except that the controlled group does not gets the experimental treatment.

Sometimes, it is not possible to do a test or the experiment utilizing a controlled trial (due to ethical reasons or no practical method available). All things considered, a researcher may test a theory by making predictions about outcomes or patterns that ought to be found in nature if the hypothesis is right.

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