Organisms in the lowest trophic level of an ecosystem are always what ?

Answers

Answer 1
Answer:

I believe that the answer is autotrophs

Answer 2
Answer: "autographs" is your answer!
this is Kai signing off, hope it helps

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If the average student's arms can extend about 1.3m how many students would have to join hands to form a human chain around a giant sequoia ? the sequoia is 30 m around and grow to about 91m tall
















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Answers

If the tree is 30 m around, then shouldn't we take the lengths of the arms and divide it into the perimeter of the tree? So what we do is take 30/1.3 = about 23. So it would take about 23 children to stretch their arms around the tree.

PLEASE HELP!!!!! Explain how infection might spread, how people fight off diseases, and why malnutrition can lead to the spread of disease in the time immediately following a natural disaster.

Answers

Answer:

When people are unable to access their homes due to a natural disaster, a(n)  

✔ shelter-in-place plan

advises them where to stay.

To lessen the likelihood of a wildfire spreading, a(n)  

✔ containment plan

might be enacted.

A(n)  

✔ evacuation plan

explains what people should do immediately following a disaster.

Explanation:

Infections spreading:
Infections are caused by bacteria, virus and other microscopic organisms. They spread through droplet (sneezing etc), they can spread through blood contact (used needles that are re-used), direct physical contact (skin infections), stool (germs from excretion) and contaminated objects.

How people fight off disease:
We have antibodies in us that fight off invading cells that contain foreign bodies. Our immune system secretes these antibodies and these antibodies will fight off the infection. The time it takes for the infection to be eradicated depends on the strength of your immune system and whether you have been vaccinated.

Natural disaster:
Natural disaster such a tsunami's and earthquakes can contaminate water supplies. In tsunami's the water from the sea will go into the drinking water which isn't safe because it could cause diseases such as cholera to spread. Earthquakes disrupt sewage structures. If these are broken, water regulation would not be as good so we end up drinking dirty water, which could also be contaminated with cholera!

Wow that was long, hope it helped! :) 

Which sentence uses the past participle form of the verb draw?A.
The artist had drew her sketches with a charcoal pencil.

B.
The artist had drawn her sketches with a charcoal pencil.

C.
The artist drew her sketches with a charcoal pencil.

D.
The artist is drawing her sketches with a charcoal pencil.

Answers

choice b choice b choice b choice b choice b

The are forming where the Indo-Australian plate collides into the eurasian plate.

Answers

it is the Himalayas hope this helped

Which of the following is not a typical way for a person to catch a disease?A. From pathogens in boiled water.
B. From pathogens in the air.
C. From pathogens in poorly cooked food.
D. From physical contact with an infected person.
Imagine you were investigating the cause of a mysterious disease. Which of the following would not be important to determine?
A. The food that the diseased people recently ate.
B. Who the diseased people were in contact with recently.
C. Where the diseased people had recently been.
D. How wealthy the diseased people were.
Where would a disease transmitted by person-to-person contact be most likely to spread quickly?
A. In a remote region, where contact between people is rare.
B. In a rural farming community, where neighbors live miles apart.
C. In a crowded city.
D. In a medical lab, where people wear protective gear (face masks, gloves, etc.) and equipment is regularly sterilized.
What type of disease transmission is most likely represented by the graph shown below?
Graph of disease spread




A. Person to person.
B. Foodborne.
C. Airborne.
D. Foodborne and airborne.
Which of the following patterns is most likely to indicate a foodborne illness?
A. All of the victims worked in the same office.
B. All of the victims were friends.
C. All of the victims shopped at the same supermarket.
D. All of the victims had the same symptoms.

Answers

1. A person cannot catch disease from pathogens in boiled water.
 2. It is not important to be determined of how wealthy the diseased people were.
3. The quickest part for the disease to spread is in a crowded city.
4. The type of disease transmission is person to person.
5. The foodborne illness is an indication of the pattern that all the victims shopped at the same.

The spread of diseases is caused by pathogens.

A pathogen is an organism that is capable of causing a disease. It is not typical for a person to catch disease from pathogens in boiled water since boiling destroys pathogens.

When investigating the cause of a mysterious disease, it would not be important to determine how wealthy the diseased people were.

The place where  a disease transmitted by person-to-person contact would be most likely to spread quickly is in a crowded city.

From the graph, we can see that the disease is mostly spread by person to person contact. A food borne disease is most likely to be indicated if all of the victims were friends.

Learn more about pathogens: brainly.com/question/13873423

How will this mutation affect the golden retriever puppy? A.the mutation will not cause. ...
etc pls help

Answers

Answer:

C.

Explanation:

Because since it only changed one amino acid in the sequence there most likely won't be a noticeable change in the phenotype. Also through process of elimination you can rule out both A and D because there since the amino acid sequence has changed there will be a change to the genotype and B can be eliminated because there is not enough information to know the change of the one amino acid will cause a disease in the dog.