Please Help!!!!!!!!!!!!!!!!!!!!!!!!!!!

Answer:

A. 1

Explanation:

pH is a measure of how acidic/basic a substance is. The range goes from 0 - 14, with 7 being neutral. pHs of less than 7 indicate acidity, whereas a pH of greater than 7 indicates a base.

note: the closer you are to the neutral the weaker it gets.

The sum of the decreases of the electric potential along the path will be 2.004V.

From the complete information, the total current(I) is given as:

= 2/(4 + 3 + 5)

= 2/12

= 0.167A

V3 = I × 3

= 0.167 × 3

= 0.501V

V4 = I × 4

= 0.167 × 4

= 0.668V

V5 = I × 5

= 0.167 × 5

= 0.835V

Therefore, the sum of the decreases of the electric potential along the path will be:

= 0.501V + 0.668V + 0.835V

= 2.004V.

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Matching the related items with their description

1.  Frontal lobe :     Voluntary muscles

2. Medulla :           Involuntary muscles

3. Thalamus :        Electrical relay

4. Cerebellum :     coordination

5. Cerebrum   :      emotions/ visual/ thought

6. Cerebral cortex :   Neurons

7. Left hemisphere : right body

The Medulla is a stemlike structure which makes up the lower part of the brain. It connects the spinal cord to the brain and it is cone-shaped neuronal mass, it controls autonomc functions in the human body. The cerbral cortex is the outermist of the brain which controls the mental capability of a human.

Hence we can conclude that matching each item to its decription is listed above

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Answer:

Incisor sharp  chisel shaped  for  biting and  cutting  food  one  root  for  support  in  the  jaw  bone Canines  long  sharp  pointed  for  holding  prey piercing  and  tearing  flesh  from  prey  single root  for  support  in  the  jaw  bone Premolars  large/wide to  increase  surface  area  for  grinding food  highly  cusped  to  increase  surface  area  for  grinding  food;  two  roots  for  firm support/anchorage  in  the  jaw  bone  molars  large/wide to  increase  surface  area  for  grinding food highly  cusped  to  increase  surface  area  for  grinding  food  Max.  20

Answer:

Trophic means involving, or feeding habits or food relationship of different organisms in a food chain.

Answer: Some consequences of building the road are that it will provide loggers access to highly-valued trees, provide a more accessible trade route for merchants and farmers, affect the wildlife and water quality in the area, and possibly cause indigenous populations to relocate.

Explanation:

Answer:

They are sources of direct current.

Explanation:

Answer:

Natural selection is a process that leads to evolution. For example variation can lead to this. Say back then one giraffe had a long neck this variation had a chance of being passed down to their children. If it keeps getting passed down by natural selection because its helping the giraffe survive then more and more giraffes will have long necks. Over time if the trait is super beneficial it could lead to the evolution of all giraffes having a long neck.

Explanation:

I used the terms that go with natural selection. If its not correct im sorry i tried lol.

Answer:

Natural selection leads to evolution due to the way reproduction works. In the example of European moths during the industrial revolution, we can see this clearly. When the industrial revolution was going on, there was more pollution, hence darkening the skies and leaving ash. Moths, which before were white with occasional black spots dominated the area until pollution affected their environment. Whiter moths were eaten by birds who could easily see them against the black trees and skies. These moths could no longer reproduce, they were dead. Moths with more black could survive longer to reproduce because they were harder to see. As time went along, the moths turned mostly black, showing an example of evolution.

Clear demonstration of deforestation, the cutting down of trees in large quantities.

So, answer is:

Harming the environment by destroying habitats and reducing the amount of oxygen in the air.

Hope this helps!

Answer:

structure, relationship, development

Explanation:

Does this answer your question???

To cross-fertilize flowers A and B, one would first remove flower A's immature stamens and later transfer pollen from flower B to flower A's stigma.

In a flower, the stigma represents the structural region of the flower that functions to collect the pollen grains.

The stigma is a female reproductive structure in the flowers, which plays a fundamental role during fertilization.

The stamens are considered the male reproductive structure of the flowers where pollen grains develop.

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From the results in the experiment the best conclusion is : ( B ) they are not valid because the student did not control all the variables that can affect plant growth

The growth variables such as amount of light and amount of water need for the plants to grow effectively are not controlled in the experiment. The first group was hand watered while the second group was watered with a sprinkler therfore the amount of water reaching both groups are not the same therefore the experimental conclusion is not valid.  

Hence we can conclude that From the results in the experiment the best conclusion is : ( B ) they are not valid because the student did not control all the variables that can affect plant growth.

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Answer:

B on edge

Explanation:

Answer:No

Explanation:

Gender traits in human are different and determined by your biophysical processes. Not at all a societal expectations.

Human gender features vary and are influenced by your biophysical processes. Not at all what society would expect.

We often care what our close friends and family think of us when it comes to them. The impact of others on our thoughts, feelings, and behaviors is known as social influence.

Social institutions include things like family and friends. Religious organizations, the media, and socioeconomic status organizations are other social institutions. These can all have an impact on our actions, thoughts, and emotions.

As we explore some theories relating to the concept of social expectations, let this serve as a unifying principle. We are taught what is right and wrong when we are little children. We learn what is wrong in stage one because we are punished for it.

Therefore, Human gender features vary and are influenced by your biophysical processes. Not at all what society would expect.

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One of the events that could give credence to the panspermia hypothesis would be the presence of carbon-based molecules on meteors that strike the earth's surface.

All biomolecules of life are carbon-based.  Examples of these molecules include carbohydrates, proteins, ribonucleic acids, etc.

In order for life to exist in a place, carbon must be abundant.

Thus, the presence of carbon-based molecules on meteors from another planet that hit the surface of the earth may be evidence that life exists on another planet.

This can be used as evidence that life on earth came from extraterrestrial sources.

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Answer:

Scientists say it's caused by humans

Explanation:

It is entirely our fault

Answer:

The average emission of SO2 would be 4.55 lb/MWh, and the average emission of NOx would be 2.1 lb/MWh.

Explanation:

Answer:

With a NOx release speed of 2.1 lb/MWh, the run-of-the-mill SO2 spilling over rate would be 4.55 lb/MWh.

Explanation:

This is Plato answer but slightly paraphrased.

Answer:

Invasion by the malaria parasite brings about extensive changes in the host red cells. These include loss of the normal discoid shape, increased rigidity of the membrane, elevated permeability to a wide variety of ionic and other species, and increased adhesiveness, most notably to endothelial surfaces.    Now, sickle cells have membranes, stretched by their unusual shape, that become porous and leak nutrients that the parasites need to survive and the faulty cells eventually get eliminated quite fast by the organisms, destroying the parasite along the way.

I hope this helps :)

The two types of tests used by the denstist to determine whether the inflamatory process has gone into the peripical tissues are : Palpation and Percussion

Inflammatory process is response of the immune system such as the white blood cells respond to external stimuli ( harmful ) such as pathogens and cells that have damaged. To determine whether the process has gone into peripical tissues, palpation and percussion tests will be conducted.

Hence we can conclude that The two types of tests used by the denstist to determine whether the inflamatory process has gone into the peripical tissues are : Palpation and Percussion .

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Answer:

The answer is organs

Explanation:

Answer:

B is a carrier of cystic fibrosis

Explanation:

Since cystic fibrosis is a recessive disease the person must have a mutation in both copies of the CFTR gene in order to have the illness.

Answer: Meiosis is a process in which the number of chromosomes per cell is cut in half through the separation of homologous chromosomes in a diploid cell. Meiosis usually involves two distinct divisions, called meiosis I and meiosis II. By the end of meiosis II, the diploid cell becomes four haploid cells.

Explanation:

Answer:

They are all composed of one or more cells.

Explanation:

The greatest concentration of the cones are located at the fovea which is the center of the macula.

Cones cells may be defined as the receptors in the retina responsible for your understanding of sight.

The fovea which is the center of the macula also known as the yellow spot has the highest concentration of the cones. This is because the image formed here is very clear and distinct as cones and rod cells are known for the sense of sight.

Therefore, the greatest concentration of the cones are located at the fovea which is the center of the macula.

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Microbes are the organisms that is responsible and main cause of infection because these microbes uses it as a growth medium.

Many infectious diseases can be caused by microorganisms such as Bacteria and Viruses because these organisms lives and colonize in the infected parts.

So we can conclude that Microbes are the organisms that is responsible and main cause of infection because these microbes uses it as a growth medium.

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Answer: im pretty sure its A

Explanation:

Answer:

The Urinary bladder, the ureter, and the urethra are all organs that belong in the execratory system.

The heart and spinal chord are not organs in the execratory system. The spinal chord belongs to the nervous system and the heart belongs to the circulatory.