Which of the following is true about environmental hazards to humans?
A)
Children are more at risk than adults because they take in more air per unit mass than adults.
B)
Adults are most at risk because they have the highest exposure to environmental hazards.
C)
Elderly people are most at risk because their immune systems do not perform efficiently.
D)
Children are least at risk because they have well functioning immune systems.
E)
Adults are most at risk because they take in more pollutants relative to their size than children.

Answers

Answer 1

Answer: A)

Explanation:

Children are at a higher risk of suffering negative effects from environmental hazards than adults, because children do not have fully developed immune systems. In addition, children have a higher exposure to environmental hazards, because they spend more time outside, on average, than adults. Children also take in more air per unit mass than adults, which means that they also take in more pollutants relative to their size.


Related Questions

At a point during a cell's development, it begins to differentiate. How does differentiation occur?

Answers

Differentiation occurs numerous times during the development of a multicellular organism as it changes from a simple zygote to a complex system of tissues and cell types.

Just want to make sure these are correct (if one is wrong then there should be another wrong answer)

Answers

Answer:

I think they're correct

What is the complementary strand for the DNA strand below?
GGCATACGTTAC

A. GGCATACGTTAC
B. CCGUAUGCAAUG
C. TTACGCATGGCA
D. CCGTATGCAATG

Answers

THE answer is D

As G goes with C
And T goes with A
The answer is d If I’m correct

In ionic type of bond electrons pooled together and shared by many atoms. *

1 point

True

False​

Answers

Answer:

In ionic type of bond electrons pooled together and shared by many atoms. 

True

what is the percent of hydrogen in cu(C2 H3 O2)

Answers

Answer:

34.986%

hopefully this helps!

please help in your own words i’ll mark brainliest

use an analogy to explain the sequence of events in the replication of DNA

Answers

Answer:

- There are three main steps to DNA replication: initiation, elongation, and termination.

- In order to fit within a cell's nucleus, DNA is packed into tightly coiled structures called chromatin, which loosens prior to replication, allowing the cell replication machinery to access the DNA strands.

Placing geologic events in a chronological order from their position in the rock record is
neptunism
uniformitarianism
relative dating
absolute dating

Answers

Uniformitarianism(1785)
Relative dating(around the 1800’s)
Absolute dating also known as radiometric dating (1905)
Neptunium (1940)

which of the following accurately describes the relationship between the lungs trachea and alveoli in the respiratory system.
A. They work together to transport blood.
B.They work together to allow gas exchange.
C. They work together but with completely separate functions.
D. They work together to obtain nutrients to deliver to cells.

Answers

B

the lungs is an organ of respiration,while the trachea allows passage of air from the larynx to the bronchi Of the lungs.. the alveoli is a tiny air sac that takes the oxygen and allows the body going

The trachea divides into a left and right bronchus inside the lungs. These further separate into bronchioles, The tiniest bronchioles have tiny air sacs at their ends. They are known as alveoli. Thus, option B is correct.

What is the role of trachea and alveoli?

The trachea splits into the right and left principal bronchi at the mediastinum at the level of the fifth thoracic vertebra.

The bronchi split off into progressively smaller channels before coming to an end in tiny air sacs known as alveoli.

During this process, oxygen diffuses from the alveoli to the blood through the alveolar walls' capillaries (small blood vessels).

Hemoglobin in red blood cells absorbs oxygen as it enters the bloodstream.

Therefore, trachea and alveoli in the respiratory system  work together to allow gas exchange.

Learn more about trachea and alveoli here:

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Biology 1 Honors Module
9. Select ALL of the following that would increase the reaction below, resulting in the formation of more products.

A:Increasing the temperature

B:Increasing the concentration of lipids

C:Adding an enzyme that forces the molecules to collide in the correct orientation

D:
Decreasing the reactant concentration

Answers

Answer:

A: Increasing the temperature

B: Increasing the concentration of lipids

C: Adding an enzyme that forces the molecules to collide in the correct orientation

Explanation:

Temperature plays a very important role in the chemical reaction as it increases the rate of reaction and allows the formation of more products.

Increasing the concentration of lipids will also promote the production of more products because lipids function as energy-storage molecules and chemical messengers which can give more energy to the reaction.

Adding an enzyme will definitely allows the formation of more products as enzymes are responsible for accelerating chemical reactions by increasing collision between reactants. More is the collision more products will form.

Hence, the correct answers are:

A: Increasing the temperature

B: Increasing the concentration of lipids

C: Adding an enzyme that forces the molecules to collide in the correct orientation

Think of an example from your own life such as school, sports, or an extracurricular activity. Develop an analogy to explain why specialization and communication are as important to that activity as they are to a cell

Answers

Answer:

In a school environment, there are different teachers who teach a different subject, administration controls all the school functions and affairs other than teaching. Other staff such as janitors, bus drivers carry out necessary functions.

In the schools, there are various specific tasks carried out by specific teaching or non-teaching staff. In the cell, a similar condition found as they show specialization and communication as various cell organelles are specific to a specific function and communicate with one another.

what would happen if the plasma membrane ruptures of breakdown​

Answers

If the plasma membrane ruptures or breakdown then the cell will not be able to exchange material from its surrounding by diffusion or osmosis. Thereafter the protoplasmic material will be disappeared and the cell will die.

Can someone help me with just these three questions!

Answers

Answer:

Use the formula to answer

Explanation:

There is a formula that you should've taken note of that includes weight, velocity, and distance. The distance formula I believe.

After fertilization the embryo will leave the oviduct to be _________in the uterus *

Cultured
implanted

Fertilized

Pollinated

Answers

Answer:

Implanted is the correct answer.

implanted is the answer :)

Which of the following statements are safety guidelines that must be followed during this lab? Check all that apply.

The lima beans should not be eaten.

Warning labels on soil products need to be followed.

Hands must be washed after handling any of the material used in this lab.

Soil is common and can be disposed of nearly anywhere.

Answers

Answer:

The first three are the correct choices. The last is wrong

Explanation:

Hope this helped Mark BRAINLEST!

Answer:

correct answer below

Explanation:

whats the location of a nerve impulse?

Answers

Answer:

the place where the axon of one neuron meets the dendrite of another, using chemicals called neurotransmitters

what is the combination of alleles for a trait, shown as letters??
please help me i will mark brainliest

Answers

Answer: the genotype

AA hom0zygous dominant, Aa heterozygous, aa hom0zygous recessive

can use any letters

Explanation:

Concentration of sodium

Interpret each as higher,lower,or equal to normal blood Na concentration.

Answer:
Equal
Lower
Higher

Concentration of free water

Now,rank these 3 saline solutions based on free water concentration.

Answer
Middle
Highest
Lowest


If you like my answer plz answer yes so this answer gets to every one who needs it :)

Answers

Yes thanks it really helped me so so soooooo much I finally get a good mark

How does the theory of natural explanation explain the medical phenomenon of antibiotic resistance?

Answers

Answer:

Antibiotic resistance evolves naturally via natural selection through random mutation, but it could also be engineered by applying an evolutionary stress on a population. Once such a gene is generated, bacteria can then transfer the genetic information in a horizontal fashion (between individuals) by plasmid exchange.

Explanation:

i hope is helpful

Why are proteins important for organisms?

Answers

Answer:

They are good for organisms because they store energy that organisms need.

Explanation:

Answer:

it is aj energy source for the orginisms and it makes the stronger

Explanation:

In general, what causes a sea breeze?

A. The difference in elevation between land and water

B. The difference in cloud cover between land and water

C. The difference in density between land and water

D. The difference in specific heat capacity between land and water

Need a 100% correct answer please

Answers

Answer:

During the day, the sun heats up both the ocean surface and the land. ... The wind will blow from the higher pressure over the water to lower pressure over the land causing the sea breeze. The sea breeze strength will vary depending on the temperature difference between the land and the ocean. At night, the roles reverse.

Answer:

Explanation:

D, the answer is d

Which statement best describes the normal growth of a plant's roots?
Question 3 options:

The roots grow out of the soil in search of oxygen from the air.

The roots seek light from photosynthesis, so they grow outside of the soil.

The roots respond to the force of gravity by growing down toward the earth.

The roots respond to contact with the ground by sliding alongside it.

Answers

Answer:

option C is correct answer of this question

Answer:

C

Explanation:

i did the test

Reproductive system when running

Female-

Male-
Own words 10 pts

Answers

Female- running improves menstrual and ovulation cycles including fertility as it decreases blood glucose, abdominal fat etc . It also decreases testosterone levels and increases other sex hormones
Male - for men running also increases sperm count and produces a higher concentration. However excessive exercise might actually DECREASE sperm count says studies.

Sorry for it being too brief hope it helps though :))

1. What are waves?

2. What causes waves

3. Compare and contrast mechanical and electromagnetic waves

Answers

energy causes waves yup yup yup

What products are formed during respiration?

Options:

A: Glucose and oxygen

B: water and carbon dioxide

C: water and glucose

D: water and oxygen

Part 2:

Is energy absorbed or released during respiration?

A: Absorbed

B: released

Part 3.

The energy produced during respiration is placed into what energy molecule?

A: glucose

B: adenosine Triphosphate (ATP)

C: light energy

Answers

Answer:

The answer to this question is A.

Explanation:

In the chemical equation for photosynthesis, carbon dioxide and water are converted to glucose and oxygen
6CO2 + 6H20 - CH2O +602
Which component could be added to complete this chon

Answers

Explanation:

because c how JavaScript help guidev. your house he hasn't gotten help gettingg

Which is an extreme disturbance to any ecosystem?

A. coral bleaching

B. hurricanes

C.extreme temperature change

D.elk overgrazing

Answers

Answer:

1) B. extreme temperature change

2) D. living things in that ecosystem

3) B. the smaller herbivore population will decrease

4) B. the loss of a river system due to contamination

5) B. die out in the area

Explanation:

Modest Disturbances in Ecosystems Quick Check

100% :)

extreme temperature change s an extreme disturbance to any ecosystem.

what is ecosystem ?

An ecosystem can be defined as a community of living organisms  concurrence with non-living components, interacting with each other in an environment.

The structure of an ecosystem composed of both biotic and abiotic components which include the distribution of energy in our environment, climatic conditions prevailing in that specific environment.

The structure of an ecosystem  can be divided into two components such as Biotic Components and Abiotic Components

both biotic and abiotic components are interrelated with each other in an ecosystem,. it is an open system where the flow of energy and components occur throughout the boundaries.

The functions of the ecosystem include regulates the essential ecological processes, responsible for the cycling of nutrients between biotic and abiotic components, maintains a balance among the various trophic levels in the ecosystem.

For more details regarding ecosystem, visit

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help please its only three questions!!

Answers

Answer:

A crystal is a solid geometric form of minerals produced by a repeating pattern that is present throughout the mineral. Also a crystal's shape is determined by the arrangement of the atoms within the crystal.

Explanation:

What is an enzyme?
1
A catalyst that breaks down
large molecules
2
A catalyst that speeds up a
reaction
3
A biological catalyst / substance
that speeds up chemical
reactions

Answers

Answer:

An enzyme is a biological catalyst and is almost always a protein.

Answer:

3

Explanation:

an enzyme is a biological substance which 99% of which are proteins and the rest are made up of nucleotides. Also, they speed up chemical reactions but keep in mind that they will remain when the reaction is finished.

Tides are the cycle of rising and falling
ocean water that repeats approximately
A every 24 hours
B every 12.5 hours
C every 25 hours
Devery 6.25 hours

Answers

Answer:

B. every 12.5 hours

Explanation:

Tides can be defined as the rise and fall of water level in water bodies such as lakes and oceans due to the gravitational force of attraction exerted by the moon on earth. The side closest to the moon creates a bulge of water known as high tide. Low tides are generally experienced when a sea level is not within the bulge.

Hence, tides are the cycle of rising and falling ocean water that repeats approximately every 12.5 hours.

4. Which of the following is true about a mutation? A.) it is always damaging to a person B.) it never harms the next generation D.)it may harm the next generation C.) it never passes down diseases​

Answers

Answer:

D

Explanation:

Mutation can be harmful and it can have no effect.

Answer:

d

Explanation:

it is d because it just is so yw

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With the help of circulatory it produce blood cells.A. ExcretoryB. MuscularC. EndocrineD. Skeletal A 5.0-kg object is suspended by a string from the ceiling of an elevator that is accelerating downward at a rate of 2.6 m/s2. What is the tension in the string (in N)? A garbage truck and a minivan are moving at the same velocity.Which automobile will have greater momentum and why? Explain your response using Newtons second law of motion specifically.If the garbage truck and minivan in Part A get into an accident with each other, how can safety restraints in a car can save a life? Explain your response using one of Newtons laws.Which of Newtons laws of motion act upon the vehicles at the point of impact? Explain your answer. What substance is a gas at -120C?carbon phosphorusxenonarsenicnitroge please help i will mark branliest a) SimplifyX-27(x - 2)2 B/C 4. All, Cin-ForumVous voulez aller au cinma ce soir. Vous tlphonez au Cin-Forum pour obtenir desinformations. Compltez votre conversation. to decrease an amount by 73 what single multiplier would you use Check whether A{x:x2 =25 and 6x= 125} is an empty set or not A meal has 310 calories in 5 servings. Find the calories per serving. in a bag of marbles 4 areblue. 5 are white, and 11 arered. What is the probability ofNOT drawing a red? The De Lacey family is so horrified by their interaction with the creature, they leave their cabin even at the loss of three months rent. a. Trueb. False A field of grass feeds 28 cows for 6 days. How many days would the same field feed 21 cows? 17. Which of the following statement best explains what pollination is?A. It is the union of sperm and egg cell.B. It is the process where the pollen of one flower reaches the stigma of another flower.C. It is the process wherein plants are developed from seeds.D. It is the process by which seeds are sent by their parent plant into a faraway place tobecome a new plant. 3x+x+y PLEASE HELP ME ITS DUE TODAY what is the name for the warm water that flows north warming great britian Read the paragraph.I have been a nurse for twenty years. In that time, I have seen a great number of patients suffer because they did not have health insurance. One of the worst cases was a young mother of two who was diagnosed with early stage skin cancer. Because she could not afford treatment, the cancer spread from her skin to other parts of her body. By the time I saw her for the first time, the cancer had reached her brain, and she could no longer be helped. This sort of thing should not happen to anyone. A strong universal health care system could prevent instances like this from occurring.Which addition would make the paragraph more objective and effective?the use of facts and statistics to support the anecdotethe use of more subjective words like worst and bestthe use of another anecdote about a patient in a similar situationthe use of more figurative language when relating the anecdote Please help Which ratio represents cos(c)? can someone please help me???? how much did he spend on the cookir