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2 years ago

If a limiting nutrient is supplied to the producer in the diagram above, what effect could it have on the birds?

Biology

1 answer:

tangare [24]2 years ago

6 0

Answer: The producers are the bluegrass. Adding a limiting nutrient to the grass would increase the amount of primary productivity. The result would be an increased amount of biomass at the producer level, and increasing biomass and available energy at each successive level. The number of birds could increase, because there would be more for them to eat.

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Which variable is likely to undergo the largest change in value resulting from a mutation that introduces a new allele into a po

dsp73

Answer:

b. average heterozygosity

Explanation:

From the available options:

a. nucleotide variability

b. average heterozygosity

c. average number of loci

d. geographic variability

Nucleotide variability represents a form of genetic variation that occur as a result of difference in nucleotide sequence of deoxy ribonucleic acid.

The locus is a region on the chromosome where genes are located. Average number of locus thus refers to total number of loci per total number of individuals in a population.

Geographic variability refers to difference in genetic traits across the various geographical distribution of a population.

Average heterozygosity is the percentage or proportion of heterozygous individuals for a trait within a population. It is a common measure of genetic variation in a population.

When a mutation occur within a population and this leads to the introduction of a new allele at a locus for which some individuals within the population are homozygous, it will directly affect the average heterozygosity of the population because more individuals will lose their homozygosity and become heterozygous.

The correct option is b.

4 0

3 years ago

A "mystery molecule" was isolated in a laboratory and scientists found that the molecule readily crossed artificial membranes. W

Arlecino [84]

Answer: D. calcium chloride

Calcium chloride molecules can be ruled out as the mystery molecule

Explanation:

Artificial membranes are also called as the synthetic membranes. It is created synthetically for the special separation purpose in the laboratory. 

It is used to separate large molecules like solid particles and big biological molecules like protein, DNA. 

They are produced from organic materials. Calcium chloride contains the chloride ion and calcium ion, as the chloride ion easily passes the artificial membrane so we can term calcium chloride as the mystery membrane that passes the artificial membrane easily.

5 0

2 years ago

GIVING OUT A LOT OF POINTS FOR THIS, DONT USE ME OR IMA REPORT

valkas [14]

Answer:

Viruses cannot reproduce on their own, but inject their DNA into living cells in order to make copies of themselves.

Explanation:

A virus cannot reproduce itself outside the host because it lacks the complicated machinery that a [host] cell possesses.

8 0

2 years ago

Read 2 more answers

Which of the following statements is true? Choose one: A. Bacteria can undergo cell differentiation without a change in gene exp

iogann1982 [59]

Answer: Option D

Explanation:

The bacteria can undergo cell differentiation in response to the environmental conditions.

The oxidative stress, antibiotic exposure, stress conditions are some of the external conditions due to which the bacterial cell can respond in the cell differentiation.

The bacterial species can divide based in the conditions in which they are put. So it is true that under stress conditions the bacterial cell can undergo cell differentiation.

8 0

3 years ago

The anthropocentric viewpoint implies that: a. Engineers have an obligation to weigh the interests of animals as being more impo

bija089 [108]

Answer:

b. Engineers should consider how much pollution their devices create because of how human health is affected.

Explanation:

Anthropocentrism, is a worldview that argues that humans are more important and significant that any other entities or species in the world. This view point argues that humans possess greater intrinsic values compared to other species; this viewpoint sees humans as superiors while other entities are inferior to them and hence can be used by humans for their own benefit.

Therefore the anthropocentric viewpoint as it relates to environmental ethics implies that engineers should consider how much pollution their devices create because of how human health is affected.

8 0

3 years ago