Using the following biomass data, determine which groups is most likely to represent the producers in an area.Group A- 1.5 Kg
Group B- 11 Kg
Group C- 37 Kg
Group D- 809 Kg

Answers

Answer 1

Answer:

Number of producer depends on ecosystem we are talking about. I am taking this question as terrestrial ecosystem so for the terrestrial ecosystem the answer will be group D.

In terrestrial ecosystem number of producer is higher than the second trophic level that is primary consumer. To study this we use pyramid of number. In most cases the pyramid of number is upright with members of successive higher trophic level being fewer than the previous one. The maximum number of individuals occurs at the producer level.

Answer 2

Answer:

I believe it is group D

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if a somatic cell in a carrot has 18 chromosomes. how many chromosomes would normally be present in a gamete

Answers

the answer would be 23

What does reproductive isolation within a species cause?A. A decrease in genetic drift
B. A decrease in gene flow
C. An increase in gene flow
D. an increase in genetic drift

Answers

Reproductive isolation within a species causes is an increase in gene flow. The correct option is C.

What is reproductive isolation?

Reproduction isolation is a mechanism constituted by some factors like behavior, physiological process, etc. by which the species does not reproduce with other species.

Gene flow is the flow of genes in forward generations, and reproduction isolation increase the gene flow within species.

Thus, option C. An increase in gene flow is correct.

Learn more about reproductive isolation, here:

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Answer:

Explanation:

i did this in class a few days ago i know this is right

Which situation does NOT require an organism to adapt due to an environmental change?

Answers

J.) deforestation would be the best answer because the orginsims would have to adapt to the cold, water and the warm or cold weather to survive

A food chain is shown between the phytoplankton, sea-nettle jellyfish, and copepods. Identify the producer, primary consumer, and secondary consumer in this food chain.

Answers

Answer:

The producers can be described as organisms which are able to make their own food through the process of photosynthesis. Phytoplankton is hence the producers in this food chain.

Primary consumers can be described as organisms which feed on the producers. Copepods are the primary consumers in this food chain.

Secondary consumers can be described as organisms which feed on the primary consumers in a food chain or food web. Sea-nettle jellyfish is the secondary consumer in the above food chain.

How dose natural selection produce adaptations in a species?

Answers

For natural selection to occur, several premises must be satisfied. Firstly, there must be variation in a population. If all individuals are the same, there is no variation on which selection can occur. Secondly, these traits must be heritable, meaning they are passed from parent to offspring. Natural selection cannot operate on traits that have no genetic basis. There must also be differential reproduction, which means that some individuals must reproduce more than others. When all of these factors occur, natural selection results in evolution as advantageous traits propagate throughout the population.

Natural selection is quite variable, as changes in the environment impact what traits are advantageous in a particular time and place. A good of example of this comes from Galapagos finches. These birds have varying beak sizes. Wide beaks are best for eating hard seeds, while long narrow beaks are more adept at exploiting the fleshy fruit from trees. Typically narrow beaks are more prevalent, but during drought conditions when trees cannot produce fruit, seeds become a more abundant food item. This results in those finches with wide beaks having more food available and reproducing more than those with narrow beaks. When droughts persist over many years, wide beaks replace narrow beaks as the most common, but this trend reverses when droughts end and fruits once again become available.

When there is a natural selection upon any species this means that that specific species has an adaptation / a increase in survival skills .

There a Giraffes for EXAMPLE : one group of giraffes have medium length necks and the 2nd group has longer necks , so they can reach the 85 foot tall trees.

That was an example of natural selection , i hoped that my answer helped yo out a lot , have a nice day.

Which of the following statements best compares genetic diversity in eukaryotes and prokaryotes?A. Both eukaryotes and prokaryotes can transfer DNA using conjugation and fertilization.
B. Eukaryotic species experience a greater rate of mutations within their populations.
C. Mutations increase the genetic diversity in both prokaryotes and eukaryotes.
D. Sexually reproducing eukaryotes evolve faster than species that reproduce asexually.

Answers

Answer:

C. Mutations increase the genetic diversity in both prokaryotes and eukaryotes.

Explanation:

It is a well-established fact that mutations increase the genetic diversity in living organisms (especially if they are positive mutations). The positive and faster mutations will help the organism to develop better traits for survival in the changing environments.

The other options are incorrect because of the following reasons:

A. Eukaryotes don't do gene transfer via conjugation.

B. Eukaryotic species don't experience a greater rate of mutations as compared to the prokaryotes. Prokaryotes have a faster mutation rate. This is the reason that microbes can adapt to changing environments faster than humans or other multicellular organisms.

D. As mentioned above, sexually reproducing eukaryotic species evolves slower than the asexually reproducing species. For example, evolution in bacteria (e.g. drug resistance) is faster than any organism belonging to eukaryotic lineage.

Answer:

C . Mutations increase the genetic diversity in both prokaryotes and eukaryotes.

Explanation:

I took the test and that was the correct anwser.

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A car slams on its brakes, producing friction between the tires and the road. Into which type of energy is the mechanical energy of the car converted?

Unlike a typical animal cell, this plant cell has an angular shape. The shape of a plant cell is due, mostly, to the presence of theA) nucleus. B) cell wall. C) chloroplast. D) cell membrane.

Kristen is running a half marathon. By her tenth minute of running, her breathing rate has increased from her resting rate.Which statement best describes how her tissues are responding to her running?A.They need more oxygen to function, so gas exchange needs to decrease. B.They need more oxygen to function, so gas exchange needs to increase. C.They need more carbon dioxide to function, so gas exchange needs to increase. D.They need more carbon dioxide to function, so gas exchange needs to decrease.