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asambeis [7]
4 years ago
10

What is the importance of having a controlled experiment.

Biology
1 answer:
stira [4]4 years ago
8 0
A controlled experiment is an experiment which only changes one variable at a time in order to isolate results. 
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The diffusion of water through a semipermeable membrane is an example of _________ and __________. osmosis; passive transport os
lana66690 [7]

Answer:

osmosis; passive transport

Step-by-step explanation:

The definition of osmosis is exactly: the diffusion of water through a semipermeable membrane.

Osmosis is when water diffuses, or goes from a high to lower concentration through a semipermeable membrane (such as the cell membrane).

Therefore the first blank is "osmosis". Osmosis is one of the types of passive transport because it does not require ATP to get transported. Transport requiring ATP would be called active transport.

The second blank is passive transport because water can easily pass through a semipermeable membrane without the help of ATP molecules.

8 0
3 years ago
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Heterotrophs obtain chemical energy from ______________.
loris [4]

Answer:

Heterotrophs obtain chemical energy for their survival by eating plants and animals.

Explanation:

  • The chemical energy that organism need comes from food. They break this food down to obtain energy.
  • Depending on their source of nutrients , they are classified into: Autotrophs and Heterotrophs.
  • Autotrophs use sunlight and photosynthesize to produce their own food. They are often known as producers.
  • Heterotrophs are beings that can't prepare their own food and consume other organisms to obtain energy.They are also called consumers.
  • Examples include: Animals, fungi,etc.
8 0
3 years ago
What kind of organisms usually make up a pioneer community?
Alexandra [31]

Bacteria, Protists, and Fungi.

Hope this helps

7 0
4 years ago
NEED HELP WITH THIS !!!!!! ASAP!!!!!
aivan3 [116]

Answer:

Explanation: I'm pretty sure that wind power is a renewable resource. An advantage would be that we can use it to power many different things, and for the foreseeable future, it won't run out. A disadvantage would be that it some countries, they don't have access to wind power, because the country may not have the money to pay for anything to be installed in order to use it, or there may not be anywhere to put anything to generate wind power.

I'm not so sure about coal and hydroelectric power, though. Hope his helped you some!

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3 years ago
Match these objects with their best description.
Y_Kistochka [10]

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Jupiter - Giant red spot

Mars - Most habitable other than earth

Mercury - Smallest terrestrial planet

Pluto - Is a Kupiter belt object

Saturn - Most visible rings

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3 years ago
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