BIOLOGY COLLEGE

What is mariculture?a. farming of coral organisms for trade
b. the coral reef ecosystem
c. legislation regarding coral reefs
d. none of the above

Answers

Answer 1
Answer:

Answer:

a. farming of coral organisms for trade
Answer 2
Answer:

Answer:

A is your answer

Explanation:

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What would happen to the pH of the blood if excessive amounts of acetoacetic acid built up, as in a case of untreated diabetes.
One example of a stored-value card is a(n) *A. Credit CardB. Debit CardC. Gift CardD. Identification Card
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In genetic diseases like Down syndrome, the cause is often due to the presence of an extra chromosome. Do you think this mutation would occur in meiosis or mitosis? Why?

Answers

Answer:

meiosis

Explanation:

Down syndrome is an abnormality that occurs on chromosomes 21, it occurs because chromosomes 21 cannot be separated in meiosis, the pair of chromosomes 21 do not separate and go together to one of the daughter cells. In this way, the oocyte or the resulting sperm will have 24 chromosomes instead of 23. When in conception that oocyte or sperm joins the germ cell of its partner that contributes the 23 chromosomes, the total sum of chromosomes that will have the first cell of the new conceived being will be 47.

Answer:

The mutation observed in the down syndrome occurred as a result of a abnormal and non disjuncted meiosis.

Explanation:

Howbeit, mutation can be described as any heritable change of the base-pair sequence of genetic material.

Down syndrome also described as trisomy 21 is a medical condition caused by a chromosomal excess, whereby the patients bear a certain resemblance to the Mongoloid race, such as a small head and tilted eyelids, and typically have a delay in cognitive ability and physical growth.

Meiosis is one that describes the cell division process of a diploid cell into four haploid cells, which develop to produce gametes.

The chromosomal mutation of nondisjunction in down syndrome describes how a pair of chromosomes is not fully separated during meiosis, resulting in the gamete having an extra chromosame (or none at all).

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____ dating can be used to determine the age of something from of years ago

Answers

Answer:

Carbon Dating

Explanation:

Which element is a major component of nucleic acids?phosphorous
sulfur
nitrogen
calcium

Answers

Answer:

NITROGEN calcium

Explanation:

because it would have an chemical overflow and not be there

Answer:

nitrogen calcium

Explanation:

i took the tes

Which of these fields of study would be the most useful for someone whowants to examine the effects of deforestation on native species?
A. Ecology
B. Chemistry
C. Meteorology
D. Geophysics

Answers

Ecology, the definition of ecology is most summed up by studying organisms and their surrounding and how it effects them
The answer will be A. Ecology

HIV's genome of RNA includes the code for reverse transcriptase (RT), an enzyme that acts early in infection to synthesize a DNA genome off of an RNA template. The HIV genome also codes for protease (PR), an enzyme that acts later in infection by cutting long viral polyproteins into smaller, functional proteins. Both RT and PR represent potential targets for antiretroviral drugs. Drugs called nucleoside analogs (NA) act against RT, whereas drugs called protease inhibitors (PI) act against PR. Which of the following treatment options would most likely avoid the evolution of drug-resistant HIV (assuming no drug interactions or side effects)?(a) Use a series of NAs, one at a time, and change about once a week.

(b) Use a single PI, but slowly increase the dosage over the course of a week.

(c) Use high doses of NA and a PI at the same time for a period not to exceed one day.

(d) Use moderate doses of NA and two different PIs at the same time for several months.

Answers

Answer:

(d) Use moderate doses of NA and two different PIs at the same time for several months.

Which of the following is/are true? A. Sympatric speciation is best described as a random event that disrupts the allele frequencies in a population.
B. Red headed females in a population will only breed with red headed males. The yellow headed females will only breed with yellow headed males. The red and yellow populations live on separate continents and rarely met in nature. The red and yellow could breed and produce fertile offspring but they normally do not. This would be an example of sympatric speciation.
C. Sympatric speciation does not require geographic isolation.
D. Red headed females in a population will only breed with red headed males. The yellow headed females will only breed with yellow headed males. This population lives in the same geographic area. The red and yellow individuals could breed and produce fertile offspring but they normally do not. This would be an example of sympatric speciation.
E. Sympatric speciation can be due to sexual(mate) selection

Answers

Answer: Options A, C and E are correct

A) Sympatric speciation is best described as a random event that disrupts the allele frequencies in a population

C) Sympatric speciation does not require geographic isolation.

E) Sympatric speciation can be due to sexual(mate) selection

Explanation:

Sympatric speciation is the situation whereby organisms of the same species:

- live in the same territory or nearby territories ( i.e not living in isolation)

- DO NOT interbreed, but select a sexual mate from a much diverse territory which results in an uneven gene flow or disruption of alleles in new species or offsprings of such parents organisms.
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