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Ksju [112]
4 years ago
7

Really need help plz

Biology
1 answer:
katrin [286]4 years ago
6 0
Such a miniscule amount of light penetrates beyond a depth of 200 meters<span> that photosynthesis is no longer possible. </span>
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Number the following levels of organization in order from the simplest to the most complex : atoms of elements, biological commu
anzhelika [568]

Answer:

subatomic particles

atoms of elements,

molecules of compounds,

organelles

cells,

tissues

organs,

,  organ system, ,

complex organisms

population,

biological community

ecosystem

, biome

biosphere

Explanation:

3 0
3 years ago
How does the statement Archaea have ribosomes, similar to eukaryotes support the theory presented in the article
timama [110]
Sorry idk My bad I just need points for my calculus assignment
5 0
3 years ago
Consider the DNA sequence. 5' C C G T A A C A G T C G A C G A G C A C A T A G C T T C A G C A T A C A G C A G A T A G 3' 3' G G
umka2103 [35]

Answer:

Primers should be:

3 'ACGTATGTCGCTTAGT 5'

5 'ACGTTCCAGTCAATGA 3'

Explanation:

DNA replication occurs with the need for the presence of primers that are a small sequence of nitrogenous bases that will allow the initiation of replication.

Primers are extremely important in PCR and are represented as small pieces of single-stranded DNA that specify the region of DNA that should be replicated during PCR. These primers attach to the single strand of DNA by pairing the nitrogenous bases allowing the DNA polymerase to recognize where replication begins.

Regarding the question above, the primers should be:

3 'ACGTATGTCGCTTAGT 5'

5 'ACGTTCCAGTCAATGA 3'

6 0
3 years ago
How do you know what a plant cell is?
vampirchik [111]

Answer: you can recognize a plant cell by its rigid cell wall and by the fact that it contains fluid filled space known as a vacuole.

Explanation: hope this helps!

5 0
3 years ago
Cancer cells are rogue clones. List and describe three mutations that allow these cells to escape the normal restrictions placed
Amanda [17]
<span>Cells control cell division in order to maintain normal cell function. If something happens to the control of the cell division, the healthy cells will divide uncontrollably. These new cells are cancer cells. </span>
The mutations in three genes are responsible for development of cancers:
1. Mutation in proto-oncogenes. Proto-oncogenes normally signal cells to grow and differentiate. Proto-oncogenes can become oncogenes due to mutations which result in the uncontrollable division of the cells.
2. Mutation in tumor suppressor genes. In normal cells, tumor suppressor genes suppress genes essential for cell cycle and that way they prevent uncontrollable cell division. However, after a mutation in these genes, suppression is lost and the cell may progress to cancer.
3. Mutation in stability genes. In normal cells, they have no role either in cell death or growth, but they control mutation rate. Mutation in stability genes results in situation where all genes, including proto-oncogenes and tumor suppression genes, are more frequently mutated.
6 0
3 years ago
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