BIOLOGY MIDDLE SCHOOL

Find x.
2 square root 5
3 square root 5
6

Answers

Answer 1
Answer: 2 square root of 5 is 4.47
3 square root of 5 is 6.70

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What are the hypothesis for glowing water?????????????????

Answers

a hypothesis for a glowing water lab could be the water will glow brighter if more/ less chemical is added
or 
colder water will glow brighter than warm water when exposed to an amount of chemical 
A possible hypothesis could be that the glowing water might be pure.

In which symbiotic relationship does one organism benefit while the other organism is harmed? A.
mutualism

B.
commensalism

C.
parasitism

D.
competition

I will friend and thank for best answer

Answers

Parasitism. It is a non-shared connection between species, where one species, the parasite, benefits to the detriment of the other, the host. Customarily parasite alluded fundamentally to living beings unmistakable to the bare eye, or macroparasites.
It is a parasitic relationship, where parasite is benefitted and the host if harmed. Example of this includes, tapeworm which attaches themselves onto the intestine of the animals like pig, cow wtc, and use their undigested food, and cause nutrition deprivation in them.

Which statement describes gravity? Check all that applyThere is no defined unit of measurement for gravity
Gravity is the force that pulls objects toward Earth's center
Objects that have a small mass will have no gravitational pull
Gravitational pull between two objects increases as the mass of one increases
Gravitational puli decreases when the distance between two objects increases

Answers

Answer:

gravity is the force that pulls objects towards earths center

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 of the following statements is true? The earth's core is made of liquid metal. Convection currents in the mantle cause the movement of crustal plates. The earth's crust is very hard and strong. It is difficult for magma to break through. The presence of sedimentary rocks means the area was once near an active volcano.

Answers

Answer:

B. Convection currents in the mantel cause the movement of crustal plates.

Explanation:

This process is what causes plate tectonics, and doesoccurs in nature. All other options were false.

Answer:

2.Convection currents in the mantle cause the movement of crustal plates.

Explanation:

What might happen to an organism if it's habitat could not meet one of its needs

Answers

It might migrate to another nourishing habitat or if stays it might just perish...
Depends on what needs... If it was the food, weathering, etc. many factors play a role in this. For example if it were a drought and the organism could not live without a constant supply of water,then it would die?
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Which statement describes experimental evidence?