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atroni [7]
3 years ago
10

What is the product of one equivalent of phosphorus and three equivalents of hydrogen? What does its Lewis Structure look like?

Biology
1 answer:
sladkih [1.3K]3 years ago
8 0
The product is called phosphine, and it has a Lewis diagram similar to that of ammonia. The diagram shows a single pair of electron shared between each hydrogen molecule and the phosphorus molecule. One electron is from the hydrogen while the other is from phosphorus. 

Because phosphorus has 5 valence shell electrons, the remaining two electrons exist as a lone pair. Using this information, the Lewis structure of phosphine can be imagined and drawn.
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The effects of sympathetic stimulation are longer lasting and more widespread than the effects of parasympathetic stimulation be
svlad2 [7]

An effects of sympathetic stimulation are longer lasting and more widespread than the effects of anxiety (low vs. high) and stress (low vs. moderate vs. high) on test.

Everyone experiences sympathetic occasionally, but persistent anxiety can reduce your quality of life. Though likely best known for altering behavior, worry can have negative effects on our physical health. Anxiety speeds up our heartbeat and sympathetic, concentrating blood flow to the parts of our brains that need it. You are getting ready for a challenging situation by having this extremely bodily reaction. Test performance may be impacted by anxiety. According to studies, pupils with low levels of test anxiety perform better on multiple-choice question (MCQ) exams than pupils with high levels of anxiety. Studies have indicated that female students have greater levels of test anxiety than male students.

Learn more about anxiety here:
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5 0
2 years ago
A group of long-billed prairie birds migrates from a pristine, protected prairie to a nearby, newly restored prairie. They colon
spayn [35]

Answer:

While the long-billed prairie-bird’s fundamental niche included a wide range of prey species, competition with other species in the newly colonized prairie reduced the realized niche such that fewer food types were utilized

Explanation:

Options  are given:

The two populations of the long-billed prairie-birds had different fundamental niches, but the same realized niche

The original population of long-billed prairie-birds had higher levels of competition for food resources and in order to find enough food had a more varied diet. Those in the newly colonized area faced less competition and adapted to a smaller range of food types.

While the long-billed prairie-bird’s fundamental niche included a wide range of prey species, competition with other species in the newly colonized prairie reduced the realized niche such that fewer food types were utilized

The long-billed prairie-bird’s fundamental niche shifted as a result of competition with other species such that individuals in the newly colonized prairie foraged on a smaller variety of food types

Since in the question it is mentioned that scientists compare the populations with respect to the two bird and determined for the long billed prairie birds and the available of food is same in the two areas

This above situation represents the competitive exclusion concept. The species should be entered into the competitor in the case when there is a large number and the feeding should be started for survival

7 0
3 years ago
Helen Fisher suggests that "through evolution humans have developed a set of neurochemicals that drive an 'evolutionary trajecto
BabaBlast [244]

Answer:

2. dopamine

Explanation:

Dopamine is one of the neurochemicals involved in the transmission of signals between the neurons of the brain. It is usually referred to as “the feel good” “happy” hormone that is released when stimulated by engaging in a pleasurable experience or activity. Dopamine controls the emotional and mental processes of humans. It is important in sexuality of human as it is responsible for the pleasurable feelings of satisfaction we experience.

8 0
4 years ago
The degree to which the findings of a study may be applied to a larger population represents how ___________ a sample is. A. Ina
g100num [7]

Answer:

B. Generalizable

Explanation:

Generalizable means something's ability to be applied to a general or wide group. So, if something is generalizable that means that it is applicable to a wide group of things outside of the initial study. Thus, B is the correct answer because it is the only vocab word that properly describes how widely applicable the study is.

One of the best ways to generalize a study is to use random or probability sampling. This helps ensure that the findings of the study can be used by others in different situations.

7 0
3 years ago
The chemical bonds in glucose molecules are converted into usable forms of ATP during which
Len [333]

Answer:

Cellular respiration

Explanation:

The point of cellular respiration is to get energy for the cell. ATP is the "energy currency" of the cell that enables it to function at normal levels. In cellular respiration, a process called <u>glycolysis</u> breaks down glucose to obtain large amounts of ATP.

7 0
4 years ago
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