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4 years ago

Ecologists will often represent the amount of potential food available for each trophic level in an ecosystem with a(n)

2 answers:

34kurt4 years ago

7 0

Energy, the many types of Biomass. There are three levels, primary consumers, secondary consumers, and tertiary consumers. Lower level animals have a greater species biomass its because higher level consumers are limited by there number of biomass.

Inessa [10]4 years ago

6 0

Answer: Biomass pyramid

Explanation:

A pyramid of biomass can be used as a graphical representation that is used for the biomass present per unit area of various tropic level.

It shows the relationship between the animals at each tropic level and biomass. It helps in quantifying the biomass that is available for each tropic level.

Hence, the correct answer is Pyramid of biomass is used by the scientist to calculate the amount of food available at each tropic level.

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narvez 5. Everyone in Dobby's family has a long nose and they brag that they are from a purebred line. Viola has a stubby nose.

mote1985 [20]

Assuming a single diallelic gene coding for the trait and expressing complete dominance, the phenotypes, genotypes, and probabilities of getting each of them vary according to the parentals' genotypes. See the options below.

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Since I do not have the genotypes from #2, I will provide different potential scenarios for this question.

I advise you to check on them and see which one matches the genotype from #2.

Let us assume a single diallelic gene is coding for the trait and expresses complete dominance.

<h3 /><h3>SCENARIO 1 ⇒ long nose is the dominant trait</h3>

Let us say that

L is the dominant allele and codes for long nose

l is the recessive allele and codes for stubby nose

Since long nose is dominant over stubby nose

LL and Ll ⇒ long nose

ll ⇒ stubby nose

If Dobby comes from a purebred family and has long nose, his genotype must be LL.

And if Viola has stubbi nose, her genotype must be ll.

Cross 1

Parentals) LL x ll

Gametes) L L l l

Punnett square) L L

l Ll Ll

F1) Genotype ⇒ 100% heter0zyg0us Ll

Phenotype ⇒ 100% long-nosed

There is 100% chances for a child to have a long nose

There is 0% chances for a child to have a stubby nose

These children are not purebred

**********

<h3>SCENARIO 2 ⇒ Stubby nose is the dominant trait</h3>

Let us say that

S is the dominant allele and codes for stubby nose

s is the recessive allele and codes for long nose

Since stubby nose is dominant over long nose

SS and Ss ⇒ stubby nose

ss ⇒ long nose

If Dobby comes from a purebred family and has long nose, his genotype must be ss.

And if Viola has stubbi nose, her genotype must be either SS or Ss.

There are two possible crosses.

Cross 1 : Violet is h0m0zyg0us dominant SS

Parentals) SS x ss

Gametes) S S s s

Punnett square) S S

s Ss Ss

F1) Genotype ⇒ 100% heter0zyg0us Ss

Phenotype ⇒ 100% stubby-nosed

There is 100% chances for a child to have a stubby nose

There is 0% chances for a child to have a long nose

These children are not purebred

Cross 2: Violet is heter0zyg0us, Ss

Parentals) Ss x ss

Gametes) S s s s

Punnett square) S s

s Ss ss

F1) Genotype ⇒ 50% heter0zyg0us Ss and 50% h0m0zyg0us recessive ss

Phenotype ⇒ 50% stubby-nosed and 50% long-nosed

There is 50% chances for a child to have a stubby nose

There is 50% chances for a child to have a long nose

These children are not purebred

----------------------------

You can learn more about single gene crosses at

brainly.com/question/12653314?referrer=searchResults

7 0

2 years ago

What’s hypertonic Hypotonic and isotonic?

Fofino [41]

Isotonic is a solution that is equal in water and solutes hypertonic solution is a solution that contains a lot of solutes then the hypotonic solution is a solution that has very little solutes

3 0

3 years ago

Read 2 more answers

Which components would be found in a eukaryotic cell but not in a prokaryotic cell?.

tia_tia [17]

The component which would be found in a eukaryotic cell but not in a prokaryotic cell is the nucleus.

<h3>What is the difference between a eukaryotic and prokaryotic cell?</h3>

A eukaryotic cell is a cell that possesses a true nucleus surrounded by a nuclear membrane.

Examples of a eukaryotic cell is animal and plant cells.

A prokaryotic cell is a cell that lacks a true nucleus.

Examples of a prokaryotic cell is a bacterial cell.

Therefore, the components which would be found in a eukaryotic cell but not in a prokaryotic cell is the nucleus.

Learn more about eukaryotic and prokaryotic cells at: brainly.com/question/2088739

6 0

3 years ago

Since both hair and skin contain keratin, the hair shaft is most comparable to what part of the epidermis?

masha68 [24]

Answer:

stratum corneum

Explanation:

Keratin is a structural protein that builds up hair, skin and nails.

The stratum corneum is the outer most layer of the epidermis that contains Keratinized cells. It serves as the primary protective barrier. Its thickness varies throughout the body .

The hair shaft is the part of the hair seen above the skin. Just like the stratum corneum , it is also made up of the protein keratin compacted and fused together.

5 0

3 years ago

Air is made up of different gases, such as oxygen, nitrogen, and carbon dioxide.

evablogger [386]

Answer:

The correct option is A) they are all classified as pure substances.

Explanation:

Pure air is a term which is used to described air which is free from pollutants or other contaminants. All the substance from which air is made are considered as pure substances. Hence, option A is correct.

Other options, like option C, is false because the components of the air are no chemically bonded to one another. They exist freely. Options D is false because not all the components of air can be classified as an element. For example, carbon dioxide is not an element.

5 0

3 years ago