BIOLOGY HIGH SCHOOL

Why are hydrogen bonds important for life.

Answers

Answer 1
Answer: The DNA helix is held together with hydrogen bonding. It also makes up water which is a necessity of life.

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MIDDLE SCHOOL

A forest was converted into a natural park This process required constructing roads and highways to make it accessible for people Construction of roads inside a forest Has resulted in

Answers

Answer:

The process is habitat fragmentation.

Explanation:

Notwithstanding causing direct mortality, roads constructed between the forests can have various aberrant effects which lead to condition called habitat fragmentation. This can result from either creature not having the option to go across the road without being hurt or through shirking of the road.

For instance, a few snakes have been appeared to pivot and not go across the road when they experience it. Some creatures keep away from the outside of the road in any event, when there are no vehicles driving on it.

Flying creatures that normally fly short good ways starting with one tree then onto the next may likewise be reluctant to fly over a huge open space, which confines their developments crosswise over roads.  

MIDDLE SCHOOL

Which label in the above diagram represents a stoma

Answers

Answer:

stoma can be  a mouth, a nose, and an anus are natural stomata.

Explanation:

there no diagram but hope this helps!

HIGH SCHOOL

Some people have freckles, and some people do not have freckles. If a child has freckles, at least one parent has freckles. However, the child may have a sibling that does not have freckles. Which statement best describes the presence of freckles?

Answers

It may be that that freckles is a Ressesive gene and that the other parent has a dominant gene of having no freckles

Answer:

It may be that that freckles is a Ressesive gene and that the other parent has a dominant gene of having no freckles

Explanation:

HIGH SCHOOL

Besides glucose, what other kinds of molecules can be used to produce ATP in cellular respiration?

Answers

HI there,

Besides glucose, there are three other molecules that can be used to produces ATP in cellular respiration. The three molecules are carbohydrates, lipids, and proteins.

i hope this helped!
The other molecules produced in ATP are lipids, proteins, and carbohydrates.
HIGH SCHOOL

Which of the following is a common function of fats in the body? repairs bone cells
helps maintain healthy skin and hair
helps move foods through the digestive system
stored as glycogen for energy uses later

Answers

Helps maintain healthy skin and hair - function of fats in the body

Explanation:

Body fats, (cholesterol, triglycerides, and essential fatty acids) are one of the essential nutrients required by the body.

The main role of fats is to store and provide energy, insulate the body and protect all the organ of the body.

The other main function of fat is maintaining healthy skin and hair. The main nutrient from the dietary fat is the essential fatty acids (EFA), (omega -6 fatty acids and omega-3 fatty acids) also called the healthy fats, helps to nourish both skin and hair.

EFAs facilitate skin renewal, moisturize the skin, and enhances skin complexion.

EFAs promote growth of hair follicles and hair elongation and also help to maintain the hair texture.

Further, body fats help aids in the absorption of fat-soluble vitamins A, D, E, and K which play a major role in the maintenance of healthy skin and hair

MIDDLE SCHOOL

Which factors characterize ecosystems? A. biotic factors only B. abiotic factors only C. both biotic and abiotic factors D. neither biotic nor abiotic factors

Answers

Answer: C. both biotic and abiotic factors

Explanation:

An ecosystem can be define as biotic community where living beings or biotic  factors of the environment interacts with the non-living components or abiotic factors of the environment. This interaction is necessary for sustaining life on earth as living beings are dependent upon the non-living physical environment for completing their life cycles.

Biotic factors includes the plants, animals, microbes, and other living beings. Abiotic factors includes the soil, water, air and sunlight.

C. both biotic and abiotic factors in earth most ecosystems have both abiotic and biotic systems. They actually need both in order to survive.

HIGH SCHOOL

The energy of electron transport serves to move (translocate) protons to the outer mitochondrial compartment. how does this help the mitochondrion produce atp?

Answers

The translocation of protons sets up the electrochemical inclination that drives ATP amalgamation in the mitochondria. 
Glucose and different sugars made by plants amid photosynthesis are separated by the procedure of high-impact cell breath in the mitochondria of the cell. ATP is the vitality bringing atom delivered by the mitochondria through a progression of concoction responses.
HIGH SCHOOL

Why aren't organisms on the seafloor crushed by water pressure?

Answers

Answer: The deep-sea organisms found today have undergone evolution in the past and are very complex now because their body structure also varies from that of the organisms that are present at a lower depth.

The bodies of these organism does not contain any air cavities in which the pressure could exert. It is because of this, the organism are quite solid without any air in their bodies, thereby they can withstand extreme high pressure.

The organisms on the seafloor have do not have air inside their bodies. Unlike the hollow viscera of animals in the surface, the viscera of seafloor organisms are filled with fluid. Therefore, the internal and external pressure is equal and these organisms are not crushed.
MIDDLE SCHOOL

Match each method of erosion with the correct definition. 1. transport of large boulders along the bottom of a riverbed saltation 2. rocks carried by the river smash together and break into smaller pieces abrasion 3. rocks smash into the river bed and banks and break into smaller pieces traction 4. weak acids in the water dissolve the minerals in rock attrition 5. sediment is lifted off the ground and carried by wind over a short distance solution

Answers

1. Traction - transport of large boulders along the bottom of a riverbed  
It is a type of transportation that occurs in rivers where larger rocks roll and slide along the riverbed. 

2. Attrition - rocks carried by the river smash together and break into smaller pieces 

This is a method of erosion where the rocks that are being carried by the river bash against each other and break, reducing in size as a result. 

3. Abrasion - rocks smash into the river bed and banks and break into smaller pieces. 

This method of erosion occurs when rocks or particles that are already being transported ram into the beds and banks of the river.
 
4. Solution - weak acids in the water dissolve the minerals in rock attrition.

This occurs mostly in carbonate rocks like limestone. They are broken down by the weak acids and dissolved. The solution is then carried away by the river.  

5. Saltation - sediment is lifted off the ground and carried by wind over a short distance.

This is a transportation process where the particles are small enough to be lifted from the bottom of the river but is still to heavy to be suspended. As a result it bounces along the riverbed. 

Answer:

1.traction

2.attrition

3.abrasion

4.solution

5.saltation

Explanation:

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