What should an ecologist measure in order to construct a pyramid of biomass for an ecosystem? A. the biomass in each trophic level of the food web B. the total mass of all the organisms in a representative area of the ecosystem C. the total mass of all the organisms in the ecosystem D. the number of organisms in each trophic level of the food web

Answer:

Grasslands and herbivores have a mutually beneficial symbiotic relationship. If larger herbivores such as Kangaroos and Elephants are removed from them, they may become extant.

Explanation:

Herbivores are always hungry and they are always looking for ways to replenish lost energy. Between tree shoots and grass, they often go for the former because they are tender, easier to reach, and less difficult to masticate than the young tree shrubs.

When baby trees become bigger, their shade prevents adequate sunlight from reaching the grass, then gradually they become scanty or subdued for as long as the shade remains.

When large herbivores are removed or leave a grassland, trees have the ability to flourish. Then the results indicated above happens.

Cheers!

Answer:

Pepsi- Mixture

Sulfure- Pure substance

Copper penny- Mixture

Explanation:

Answer:

C. Takes millions of years to make

Answer: warm front

Explanation: When a warm air mass meets a cold air mass, the warm air rises since it is lighter. At high altitude it cools, and the water vapor it contains condenses. This type of front is called a warm front. It generates nimbostratus clouds, which can result in moderate rain.

Answer:

Physical

this type of weathering is known as freezing and thawing

Answer:

B

Explanation:

Answer:

a. 4 R¹R²

b. 4 Pink flowers

c. 1 Red, 2 pink and 1 white phenotypes

d. 1R¹R¹ : 2R¹R² : 1R²R²

Explanation:

This question involves a single gene coding for flower color in petunia plants. However, the allele for red flower color (R¹) is incompletely dominant over the allele for white flower color (R²), hence, a pink intermediate phenotype (R¹R²) is formed.

According to these questions;

A. If a white-flowered plant (R²R²) is crossed with a red-flowered plant (R¹R¹), all of the F1 generation will have a genotype of R¹R² (see attached image for punnet square).

B. The F1 generation, which possess a genotype: R¹R² will express the pink flower phenotype because neither of the two alleles are truly dominant over the other i.e incomplete dominance.

C. If two of the F1 offspring were crossed i.e. R¹R² × R¹R², each parent will produce R¹ and R² gametes. Using these gametes in a punnet square (see attached image), the following phenotypes will be produced in the F2 generation: Red, pink and white phenotypes

D. The F2 generation will possess a genotypic ratio of 1R¹R¹ : 2R¹R² : 1R²R².

Answer:

heat, gas(condensation), Adhesion

Explanation:

Yes they both contain atleast 2 chromosomes

Answer:

The right kind of self-love is an achievement, love for what is best in us, motivated by self-love. Selfishness for Aristotle does not hold negative connotation, when considered in the context of a good or virtuous man., but rather motivates human action.

Explanation:

Note about the question:

Among the (observed-expected)² list, there is one value missing. This value corresponds to round yellow gray plants, and equals 0.002. This number was included in the explanation of the problem.

Answer:

The chi-square value is X² = 2.6813.

Explanation:

Available information:

Observed individuals numbers:

The expected numbers

The (observed-expected) ² numbers

To get the chi-square value, we just need to replace the terms in the following equation.

                       Chi square= ∑ ((O-E)²/E)

Where,  

X² = ∑ ((O-E)²/E)  

X² = (0.002/269.58) + (65.61/89.86) + (15.2/89.86) + (3.61/89.86) + (8.41/29.95) + (16.81/29.95) + (0.01/29.95) + (9/9.98)

X² = 0.0000074 + 0.73 + 0.17 + 0.04 + 0.28 + 0.561 + 0.0003 + 0.9

X² = 2.6813

Among the (observed-anticipated)² list, there's one price missing. This price corresponds to spherical yellow-grey plants and equals 0.002. This variety became protected withinside the clarification of the problem.

The chi-square value  is [tex]X^ 2 =2.6813.[/tex]

Information given.

Observed people numbers:

Total variety withinside the population: [tex]639[/tex]

Round yellow grey [tex]269[/tex]

spherical yellow-white 98

spherical inexperienced, grey 86

wrinkled yellow grey 88

spherical inexperienced white 27

wrinkled inexperienced grey 30

wrinkled inexperienced white 7

wrinkled yellow white 34

The anticipated numbers

ratio 27:9:9:9:3:3:3:1

spherical yellow grey 269.58

spherical yellow white 89.86

spherical inexperienced grey 89.86

wrinkled yellow grey 89.86

spherical inexperienced white 29.9!

wrinkled yellow white 29.95

wrinkled inexperienced grey 29.95

wrinkled inexperienced white 9.98

The (observed-anticipated) 2 numbers

spherical yellow grey 0.002

spherical yellow white 65.61

spherical inexperienced grey 15.2

wrinkled yellow grey 3.61 spherical inexperienced white 8.41

wrinkled yellow white 16.81

wrinkled inexperienced grey 0.01

wrinkled inexperienced white 9.00

To get the chi-square value, we simply want to update the phrases withinside the following equation.

[tex]Chi square = Sigma((O - E) ^ 2 / E)[/tex]

Where,

[tex]Σ[/tex] is the sum of the phrases

O refers back to the Observed variety of individual

E refers back to the Expected numbers of people

[tex]X ^ 2 = Sigma((O - E) ^ 2 / E)[/tex]

[tex]X^ 2 =(0.002/269.58)+(65.61/89.86)+ Chi quare = Sigma((O - E) ^ 2 / E)[/tex]

Where,

Σ is the sum of the phrases

O refers back to the Observed variety of individual

E refers back to the Expected numbers of people

[tex]X ^ 2 = Sigma((O - E) ^ 2 / E)[/tex]

[tex]X^ 2 =(0.002 / 9.58)+(65.61/ 89.86) + (15.2/89.86)+(3.61/89.86)+(8.41/29.95)+ (16.81/29.95) + (0.01/29.95) + (9/9.98)[/tex]

[tex]X^ 2 =0.0000074+0.73+0.17+0.04+ 0.28 + 0.561 + 0.0003 + 0.9[/tex]

[tex]X ^ 2 = 2.6813[/tex]

Pearson's chi-square test is utilized to inspect the job of chance in creating deviations among noticed and anticipated values. The test relies upon extraneous speculation since it requires hypothetical anticipated that values should be determined.

Hence it clearly calculates the value of chi-square.

To know more about chi-square refer to the link :

https://brainly.com/question/15232994

Wheres the data

Explanation:

Answer:

Uh sir- i dont see anything, or a picture

Explanation:

Please update a picture so i know what to awnser!

As far as I can tell, the answer would be D. Adaptation. The birds are evolving to adapt to their environment, and as such, their beaks are getting larger to crack larger seeds.

Answer:

Air mass motion is usually from the air flow in the upper atmosphere. As a stream changes intensity, and position, it affects motion, and strength of air masses.

Explanation:

Answer:

Gene flow is an important mechanism for transferring genetic diversity among populations. ... Gene flow is expected to be lower in species that have low dispersal or mobility, that occur in fragmented habitats, where there are long distances between populations, and when there are small population sizes.

Explanation:

Answer:

Because it is important for transferring genetic diversity among populations.  Even low levels of gene flow can have a large impact, counteracting the other evolutionary force.

Explanation:

Answer:

that looks complicated

Explanation:

please do not answer other's question if you don't know the answer

Answer:

c

Explanation:

Answer:

Well I thought it was the nervous system but that is connected/ made up of the brain so I would go for C, Brain

Answer:

si

Explanation:

Answer:

I believe that if you were to install a home battery, it should be pretty easy to store the excess energy for later use.

So, my guess is that it's false.

Answer:

B is true

i took the test

Oil is a renewable energy resource. It is processed to make jet fuel. Thus, the correct option is B.

Renewable energy is the energy which is derived from natural sources which are replenished at a higher rate than they are being consumed. Sunlight and wind are the two such sources of energy which are constantly being replenished from the planet. Renewable energy sources are present in plentiful amounts and are found all around us.

Jet fuels are the energy fuels which are typically made by the blending and refining of various crude oils such as petroleum distillation products including naphtha, gasoline, or kerosene in order to meet the specific military or commercial specifications required.

Therefore, the correct option is B.

Learn more about Energy resources here:

https://brainly.com/question/504027

#SPJ2

Answer:

it calms down and gets to get cool again

Answer:

2

Explanation:

thermoregulation is process that allows your body to maintain its core internal temperature

Answer:

diagram

hope this pic helps you

Answer:

Hope it will help you be happy ^_^

Answer:

They inhabit numerous niches within the forest.

Explanation:

All the biophysical environments where a species lives and how it acquires what it wants for its life and reproduction. In same forest, three separate warbler species live. No, since they occupy the environment, and get nutritional resources across multiple locations on the plant.

Answer:

occupy different niches within the tree

Explanation:

Answer: xylem

Explanation:

Direction of transport : Xylem= Upwards

Phloem=Upwards and downwards

Answer:

It dont go anywhere because it never existed

Explanation:

its gone its gone