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White raven [17]
2 years ago
10

A forest is an ecosystem. There are many plants and animals in the forest. What is true about the plants and animals? The plants

depend on the animals. The animals depend on the plants. The plants do not depend on the animals. The animals do not depend on the plants.
Physics
2 answers:
Volgvan2 years ago
7 0

Answer:

The plants depend on animals and animals depend on plants.

Plants depend on animals for nutrients, pollination and seed dispersal. Animals are totally dependent on plants. First of all plants produce oxygen which is vital for life on earth. Then, for many animals plants are their basic food, or if plants don’t make up 100 % of their diet, plants are nevertheless essential in their food supply.

ivanzaharov [21]2 years ago
6 0

Answer:

A. The plants depend on the animals.

B. The animals depend on the plants.

Explanation:

Plants require animals to spread their seeds around the area, also known as seed dispersal. They also use the help of other animals for pollination. Bees can be used as a great example for pollination and so as butterflies, flies, etc. Some plants have seeds with barbs that stick to the animals fur. Some just simply stick to the animals paws and/or fur until dropping off to another place. Other seeds are consumed and then composed. Here's an example. A deer eats an apple. Everyone knows that apples have seeds, hence, the deer consumes the seeds. The deer will then compose the digested food along with the seeds. Now, the apple's seeds have settled in another place and will start its growth. Animals also depend on the plants. Plants are a source of food for many herbivores and omnivores. Plants also have a high nutrition, giving animals the nourishment needed. They also produce oxygen and take in carbon dioxide. This is necessary for earth and its wildlife on it.

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6 0
2 years ago
A block of gelatin is 120 mm by 120 mm by 40 mm when unstressed.
ycow [4]

Answer:

σ = 3.402 KPa ,  γ = 0.25 , G = 13.608 KPa

Explanation:

Given:-

- The dimension of gelatin block = ( 120 x 120 x 40 ) mm

- The applied force, F = 49 N

- The displacement of upper surface, x = 10 mm

Find:-

Find the shearing stress, shearing strain and  shear modulus.​

Solution:-

- The shear stress is the internal pressure created in an object opposing the applied action ( Force, moment, bending, or torque ).

- A force of F = 49 N was applied parallel to the top surface of the gelatin block.

- The shear effect results in a stress in the gelatin block.

- The formulation of stress ( σ ) is given below:

                        σ = F / A

Where,

           A : The surface area of the object that experiences the shear force.

- The top surface have the following dimensions:

          A = ( 0.120 )*( 0.120 ) = 0.0144 m^2

Therefore,

                     σ = 49 / 0.0144

                     σ = 3.402 KPa

- The shear strain ( γ ) is the measurement of change in dimension per unit depth of the block.

- The top surface undergoes a displacement of ( x ). The height of the top surface of the gelatin block is L = 40 mm.

Hence,

                    γ = x / L

                    γ = 10 / 40

                    γ = 0.25

- The shear modulus or the modulus of rigidity ( G ) is a material intrinsic property that signifies the amount of resistive stress to any cause of deformation.

- It is mathematically expressed as a ratio of shear stress  ( σ ) and shear strain ( γ ):

                   G =  σ / γ

                   G = 3.402 / 0.25

                   G = 13.608 KPa

7 0
3 years ago
The wavelength of visible light is about 5500 times longer than the wavelength of x-rays. If you represent the wavelenth of an x
Pie

Answer:

458.33 ft

Explanation:

We are given that

Wavelength of of an x- ray photon=1 in

Wavelength of of an x- ray photon==\frac{1}{12}ft

1 in=\frac{1}{12}feet

We have to find the  length of line (in feet) drawn by you to represent the wavelength of visible light.

According to question

Wavelength of visible light=5500\times \frac{1}{12} ft

Wavelength of visible light=\frac{5500}{12}ft

Wavelength of visible light=458.33 ft

Hence, the 458.33 ft line must drawn  by you to represent the wavelength of visible light.

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3 years ago
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