What causes infectious diseases in the human population?
(1) allergic reactions
(3) toxic chemicals
(2) poor dietary habits
(4) microorganism

Answers

Answer 1
Micro-organisms can spread to person to person

Related Questions

describe how photosynthesis and cellular Respiration Power all the ecosystems on this planet

Answers

Answer:

Photosynthesis and cellular respiration allow the carbon and oxygen that organisms consume and produce to be cycled through the ecosystem. They work together so that what is made from one process is used in the other. Without them the ecosystem would run out of carbon dioxide and oxygen, and everything would die.

Choose 1-3 activities that you perform regularly and explain the role(s) that each organ system plays in each activity, as well as explain how organ systems work together to perform the chosen activities.

Answers

Answer:As one example, think about a building's electrical system. Suppose a mouse chewed through an electrical wire to a furnace. Without electricity, the heating system would not work. If this happened in very cold weather, the plumbing system could be affected. Water pipes might freeze and burst. If a lot of water leaked into the building's walls, its support system would be damaged. Like a building's systems, your body's systems have

Explanation:

You know that your body is made of cells. When groups of cells do the same kind of work, they are called tissues. The word tissue comes from a Latin word meaning to "weave." Cells that make up tissues are sometimes "woven" together.

You have four main types of tissues: epithelial, nervous, muscle, and connective tissue. Epithelial tissue covers the outside of the body. It also lines organs and cavities. Nervous tissue sends electrical signals. Muscle tissue helps you move. Connective tissue joins bones and cushions organs.

When groups of tissues work together, they are called organs. Some

examples of organs are the heart, lungs, skin, and stomach. When organs work together, they are called systems. For example, your heart, lungs, blood, and blood vessels work together. They make up the circulatory system.

There are eleven systems in the human body: muscular system, respiratory system, digestive system, integumentary system (skin), skeletal system, circulatory (or cardiovascular) system, excretory (or urinary) system, reproductive system, nervous system, lymphatic system, and endocrine system. Each system has a special job.

All of your body systems have to work together to keep you healthy. Your bones and muscles work together to support and move your body. Your respiratory system takes in oxygen from the air. It also gets rid of carbon dioxide.

Think of your body as a building. A building has a plumbing system, a heating system, a cooling system, an electrical system, and a support system. If any system in a building breaks down, other systems can be affected.

When the humidity (amount of water vapor) increases, the air pressure decreases or increases

Answers

Answer:

decreases :)

Explanation:

How are mitchondria and chloroplasts similar to prokaryotes ?
A. They use oxygen to produce ATP during aerobic respiration .
B. They all contain membrane-enclosed organelles .
C. They are similar in size and contain their own DNA .
D. They are autonomous, meaning they can live on their own . ​

Answers

The correct answer is B

PLEASE HELP!!
What type of chemical is used to kill bugs?
rodenticide
insecticide
herbicide
fungicide

Answers

Answer:

It is insecticide

Answer:

insecticide

Explanation:

i took the quiz and looked it up : )

The one that provides short term energy and structure to the body ____________________

Answers

Answer: ATP—Adenosine triphosphate,

Answer:

Adenosine triphosphate,

Explanation:

Hope this help

fog is a cloud that has.

Answers

And red is a color not the word "stop"

Answer:

it's Base near the ground

Explanation:

occurs close to the earth surface

witch part of the plant gives leaves their green color

Answers

Answer:

The substance that gives plants green color is chlorophyll. Chlorophyll is a chemical found in organelles called chloroplasts in the cells of green plants. The chlorophyll uses the energy from the sun to produce glucose and oxygen from carbon dioxide and water in a process called photosynthesis.

Explanation:

HOPE THIS HELPS

TAKE CARE

HAVE A NICE DAY

Answer:

Chlorophyll.

If you are asking about the part, chloroplasts are the answer.

Which is the largest gland in the human body ?
Give an example of an organism whose digestion is intracellular.
These are VSQ, so pls answer in one word.​

Answers

➜ Liver.

➜ Amoeba.

Intracellular digestion is the form of the digestion which takes place in the cytoplasm of the cell.

Answer:

Liver is the largest gland in the human body.

Ameba.

I NEED THIS ASAP!!!! PLEASE!!
___1. Organisms that make their own food A. Chloroplasts
___ 2. Site of photosynthesis B. Aerobic
___ 3. Organism that must consume other organisms C. Glucose
to obtain energy. D. Mitochondria
___ 4. C6H12O6 E. Glycolysis
___ 5. Process requires oxygen F. Cytoplasm
___ 6. Adenosine diphosphate G. ADP
___ 7. During aerobic respiration, the most ATP H. Autotrophs
is produced during this process. I. ATP
___ 8. The anaerobic process of splitting glucose J. Anaerobic
and forming two molecules of pyruvic acid K. Electron Transport Chain
___ 9. Place where glycolysis occurs L. Heterotroph
___10. Place where the Krebs cycle occurs M. Mitochondria
___11. Process does not require oxygen
___12. Energy storing molecule

Answers

Answer:

___ 1. Organisms that make their own food

H. Autotrophs

___ 2. Site of photosynthesis

A. Chloroplasts

___ 3. Organism that must consume other organisms to obtain energy.

L. Heterotroph

___ 4. C6H12O6

C. Glucose

___ 5. Process requires oxygen

B. Aerobic

___ 6. Adenosine diphosphate

G. ADP

___ 7. During aerobic respiration, the most ATP   is produced during this process.

K. Electron Transport Chain

___ 8. The anaerobic process of splitting glucose and forming two molecules of pyruvic acid

E. Glycolysis

___ 9. Place where glycolysis occurs

F. Cytoplasm

___10. Place where the Krebs cycle occurs

D. Mitochondria

___11. Process does not require oxygen

J. Anaerobic

___12. Energy storing molecule

I. ATP

What means Resource ?

Answers

a stock or supply of money, materials, staff, and other assets that can be drawn on by a person or organization in order to function effectively.


What happens when the number of organisms in an environment is higher
than the carrying capacity?
O A. The population remains the same.
Ο Ο Ο
B. The population will increase slowly.
C. The population will increase quickly.
O D. The population will decrease.
SUBMIT
PREVIOUS

Answers

Answer:

Explanation:

The population would decrease I believe because that means that if there is more organism that an environment can handle that means there won't be enough resources for all of the organism like food that means the population will slowly die off.

The white-tailed ptarmigan lives at high elevations on mountains that receive a lot of snow in the winter. During the summer, the ptarmigans’ feathers are mottled brown. The birds lose the brown feathers and grow a new set of white feathers during the winter. Scientists are concerned that rising global temperatures will affect the white-tailed ptarmigan. If global climate change leads to the elimination of snow in the habitat of white-tailed ptarmigans, which adaptation is most likely to occur over many generations?

Answers

Answer:

The birds will no longer molt brown feathers for white ones.

Explanation:

Over time the birds with white feathers will slowly die off (mostly dude to predators), and over time the birds will likely no longer have white feathers, and they will no longer molt from brown to white and white to brown. The feathers will likely stay brown year round.

What determines the potential energy of particles in matter?

Answers

Potential energy depends on molecular size and structures and is inherent properties of the molecules. Hope this help!!!

Which of the following is the best example of a symbiotic relationship? The climate changes. As a result, hundreds of species become extinct and the land turns into a desert. A pair of birds fight over a piece of food. The dominant bird wins. Certain breeds of fish will often clean bigger fish. The cleaner fish gets food, the bigger fish gets a cleaning. A foolish man decides to go swimming in shark-infested waters. As a result, he is bitten by a shark looking for food.

Answers

Answer:

Certain breeds of fish will often clean bigger fish. The cleaner fish gets food, the bigger fish gets a cleaning.

Explanation:

I'm not too sure.

Good luck! <3

Based on the procedures and data, which of these is the MOST appropriate
conclusion?
The control situation was as effective as the hand sanitizer and anti-bacterial
soaps.
Both soaps did a better job killing bacteria than the hand sanitizer.
The advertiser's claims are true; the hand sanitizer worked best.
The experiment is not valid; there is no control.

Answers

Both soaps did a better job killing bacteria than the hand sanitizer

Given the DNA sequence TAC, what is the tRNA anticodon?

Answers

Answer:

ATG

Explanation:

T (thymine) pairs with the base A (adenine) and C (cytosine) pairs with the base G (guanine)

Answer:

The correct is UAC.

Explanation:

I will be back to explain. I do not remember at the moment. Also I took a test and the person that said ATG is wrong.

A new island has recently formed off the coast of Hawaii. What must
occur for it to become a stable ecosystem (climax community)?
Primary Succession
Secondary Succession
Tertiary Succession
Aquatic Succession

Answers

Answer:

Primary Succession

Explanation:

This is the first step for an environment in terms of its life cycle. The first plants (pioneer plants to be specific) to inhabit this new island will help make a layer of soil that the Secondary Succession stage will not have to go through. The creating of soil takes THOUSANDS OF YEARS so this would be associated with Primary Succession.

Hope this helps :)

I NEED HELP NOW!!

In which part of the Sun would the most helium be found? *
(20 Points)

Answers

Answer:

yes D part have most helium

The most helium in the Sun is found in its core. The core in the given image is represented by letter D.

What is nuclear fusion?

Nuclear fusion is the reaction that occurs when two or more atomic nuclei combine to form one or more different atomic nuclei and subatomic particles (neutrons or protons).

Nuclear fusion reactions take place in the Sun's core, converting hydrogen into helium and releasing energy in the process.

As a result, the core of the Sun has the highest concentration of helium, accounting for an estimated 60% of the Sun's total mass.

The outer layers of the Sun have much lower helium concentrations and are mostly made up of hydrogen.

Thus, the correct labeling is D.

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O Water is denser than isopropanol, so the water layer will always be below the isopropanol layer if they are both in the same container. What does this tell you about the make-up of the pigments for each specimen?

Answers

Answer:

One is polar and the other is non-polar.

Explanation:

The makeup of both water and isopropanol is different from each other due to their polar nature. Water is a polar substance means that it makes poles i.e. positive or negative while on the other hand, isopropanol is non-polar substance so due to this reason water and isopropanol make different layers. If both are polar or nonpolar substances so they will able to mix with each other.

What protein function listed here suggests that most enzymes are proteins?
A) provide structural support
B) transport substances inside the cell and between cells
C) communicate signals within the cell and between cells
D) speed up chemical reactions
E) control cell growth

Answers

the answer is D, speed up chemical reactions

The protein function listed here which suggests that most enzymes are proteins is that they speed up chemical reactions. That is option D.

Proteins are one of the classes of food that contains nitrogen in addition to carbon, hydrogen and oxygen.

Enzymes are those substances that helps in the breaking down of food substances into simple, soluble and diffusible substances before they can be absorbed into the body. It speeds up chemical reactions in the body by lowering the activation energy.

Enzymes are often referred to as proteins because proteins speeds up biological processes (chemical reactions) which is the same function performed by an enzyme in a living organism.

Learn more here:

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1. What is a mutation?
2. How does a mutation effect the process of transcription and translation?
3. How can mutations be good, bad, or have not effect? Explain how those effects could happen?

Answers

1. Mutation is a change in the genetic material of a cell; cause by a mistake during DNA replication 2.Some mutations seem to not cause any problems but others are like a train wreck. The protein that should have been formed is unusable 3 should be easy

PLEASE HELP, WILL MARK BRAINLEST

Which of these Earth spheres interact with oceans during beach erosion?

geosphere
hydrosphere
cryosphere
atmosphere

Answers

Answer:

I would say hydrosphere

Explanation:

Because it's what interacts with the water on earth

geosphere, the hydrosphere is the one doing the eroding.

what does as scientific theory compare to a scientific law?

Answers

A scientific law describes an observed pattern found in nature without explaining it. The theory is the explanation.

What are some of the main characteristics of cardiac muscle that make them distinct from the other two types of muscle cells? Why are these characteristics important for understanding the functions of cardiac muscle?

Answers

Answer:Four characteristics define cardiac muscle tissue cells: they are involuntary and intrinsically controlled, striated, branched, and single nucleated.

Explanation:on

how it would be possible to have a change in a single base of DNA, but have the protein NOT change and be functional

Answers

It Wouldn’t necessarily be possible
it would be possible because This happens because substitution of base or new base codes for the same amino acid. example in codon AAA if 3rd A gets change to G due to mutation and become AUG. ... Thus when amino acid is not changed the polypeptide will not change hence no confirmational or functional change in the protein

which of these fronts is most likely to produce a thunderstorm?
whoever to answer first gets a brainliest!!​

Answers

Answer:

Cold front

Explanation:

The heart muscle is a part of which organ system? You may select multiple answers.
A. Digestive

B. Circulatory

C. Skeletal

D. Muscular

Answers

Answer:

B. Circulatory

Explanation:

Ms. Lewis is a chemist mixing two solutions together. A chemical reaction takes place, and the solution becomes warm. Which statement best describes what has happened?

Answers

A chemical solution that becomes warm is an exothermic solution. An exothermic solution is when the solution heats up the air around it, while an endothermic solution would be a solution that cools down the air around it.

Which might indicate to a doctor that there is an issue with someone’s body chemistry?
sugar in the blood
sugar in the urine
water in the urine
water in the blood

Answers

Excess sugar in urine

The symptoms that a doctor says indicate that there is a problem with one's body are that the sugar in urine, which is in the second option, is not normal because the sugar returns to the blood during the filtration.

What is the significance of the urine abnormality?

High levels of sugar in the urine indicate uncontrolled diabetes and metabolic disorders like the Fanconi syndrome, where the body is unable to reabsorb sugar from the urine. This can lead to high levels of sugar in the blood, which can damage blood vessels and lead to serious health complications.

Hence, the symptoms that a doctor says indicate that there is a problem with one's body are that the sugar in urine, which is in the second option, is not normal because the sugar returns to the blood during the filtration.

Learn more about the urine abnormality here.

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