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kirza4 [7]
3 years ago
9

Which two photos show electric force in action? A. B. O c. D.

Biology
1 answer:
Komok [63]3 years ago
3 0
B and c is the answer
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How had/has human activity influenced the tropic cascade of the aleutian islands kelp forest
Rina8888 [55]

Answer:

humans killing whales caused orcas to have to eat otters which caused sea urchin populations to increase which caused kelp populations to decrease

Explanation:

7 0
3 years ago
Although the number of genes in the human genome is surprisingly low compared to less complex organisms, the number of possible
Effectus [21]

Answer:

alternate arrangements of exons from a primary transcription.

Explanation:

Genomics refers to the scientific study of genes (DNA) found in living organisms such as humans and animals.

A genome can be defined as the complete set of hereditary instructions that is typically found in the deoxyribonucleic acid (DNA).

Genome imprinting can be defined as an epigenetic biological process in which a genomic domain or genes of a living organism is marked biochemically with information that is related to parental origin. Thus, it is a non-Mendelian inheritance i.e genome imprinting is typically independent of Mendelian inheritance.

Transcription can be defined as a process which typically involves re-writing the informations contained within a Deoxyribonucleic Acid (DNA) into a Ribonucleic Acid (RNA) by enzyme RNA polymerase.

Although, the number of genes contained in the human genome is surprisingly low in comparison with less complex organisms such as bacteria, protozoa, salmonella, etc.

However, the number of possible products from those genes is greatly amplified by alternate arrangements of exons from a primary transcription.

An exon refers to the coding portion of a gene that contains the information required for transcribing and translating (encoding) the final part of a mature RNA, after one or more DNA sequences (introns).

Simply stated, an exon is a nucleotide sequence in DNA and RNA used for encoding a part of the final mature RNA.

A nucleotide can be defined as an organic molecule which forms the building block of nucleic acid such as deoxyribonucleic acid (DNA) and ribonucleic acid (RNA).

3 0
3 years ago
Knowing that some individuals from Island 1 colonized Island 2, biologists sample the Mainland and two Island populations fifty
raketka [301]

Answer:

The evolutionary mechanism that could be influencing the allele frequencies between both islands and the mainland population might be Founder Effect.

Explanation:

Genetic drift is the random change that occurs in the allelic frequency of a population through generations. The magnitude of this change is inversely related to the size of the original population. These changes produced by genetic drift accumulate in time and eventually, some alleles get lost, while some others might set. Genetic drift affects a population and reduces its size dramatically due to a disaster -bottleneck effect- or because of a population split -founder effect-. In <u>founder effect</u>, a new population originates when a few individuals who are coming from a bigger population carrying its genes, settle down in a new area and reproduce. This small population might or might not be genetically representative of the original one. Some rare alleles might be exceeded or might be completely lost. Consequently, when the small population increases in size, it will have a genetically different composition from the original one. In these situations, <u>genetic variability is reduced</u> and there exists the possibility of developing a peculiar allelic composition. If the number of individuals that originated the new population is low, the founder effect will be very extreme, because the effects of the genetic drift are inversely proportional to the original number of individuals.  

<em>In the exposed situation, the evolutionary mechanism that could be influencing the allele frequencies between both islands and the mainland population might be Founder Effect. The fact that both islands are similar in their frequencies might be due to little genetic variation on island 1, or because dispersion to island 2 is a recent event on time. </em>

5 0
3 years ago
A
OLga [1]

Answer

chlorophyll

Explanation:

Chlorophyll is a pigment that gives plants their green color, and it helps plants create their own food through photosynthesis

6 0
3 years ago
Read 2 more answers
Question 20 (1 point)<br> Phototransduction is the process:
Fiesta28 [93]

Answer:

Phototransduction is the process by which a photon of light is changed to an electrical signal, occurs in the photoreceptors.

Explanation:

HOPE THAT HELPS!!

4 0
3 years ago
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