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Sonja [21]
3 years ago
15

What is the basis for most ecosystems?

Biology
1 answer:
LUCKY_DIMON [66]3 years ago
6 0
C. The sun, this gives energy and to animals and food for plants
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PLSSS HELP <br> Do you think an international orbiting space station is a good idea? Why or why not?
maksim [4K]

Answer:

Yes it is (we already have one)

An international orbiting space station would be a great idea! We could use the space station as a refueling point for passing spaceships. This could helps us achieve things such as space exploration, mars/moon colony, or even contact with other unearthly organisms. This could also allow us to conduct space research.

No it isn't

An international orbiting space station is a horrible idea! The first thing to think about is the money. This would put the entire area in stasis as we try to raise money for the space station. We also need contact with the humans/robots in space! Building a space station would confuse other nations as to what we plan to do with said space station. This could cause a war of some sort.

8 0
3 years ago
Why is the Evolution considered to be a scientific theory
hammer [34]

Answer:

It is considered to be a scientific theory because,

Explanation:

there are many other believes or as you would call it religions that give a good explanation on how humans were created.

To be honest I don't  believe the evolution because what if there was another way we were created, and not really turned into cavemen that came from monkey's or whatever.

It is honestly up to YOU on what you believe or feel about were we came from!

6 0
3 years ago
Explain the mechanisms for movement of materials across cellular membranes anatomy
trapecia [35]
There are 2 types of transport mechanisms that involve the movement of materials across the cellular membrane:

1. Passive Transport Mechanisms which is the movement of materials that does not require energy. Instead the movement relies on the permeability of the cell. Under this are three kinds of passive transport mechanisms:

a. Simple Diffusion: 
- the movement of materials from a region of higher concentration to lower concentration. No external energy is necessary for the movement. The materials supply the energy themselves. 

b. Facilitated Diffusion:
- This differs from simple diffusion because the movement is facilitated by proteins that make up the structure of the membrane. The proteins include channel proteins that allow ions and smaller molecules to cross the membrane. The other protein are the carrier proteins, which bind to materials like sugar molecules and move it across the membrane.  

c. Osmosis:
- This is the diffusion of water across the membrane. Osmosis moves water from regions where there are more water molecules of water per volume to regions where there are less water molecules per volume.  

2. Active transport on the other hand is a movement mechanism that requires energy. It uses the energy to send materials against the direction it is coming from through simple diffusion. This mechanism is used in a way to keep unwanted ions or other materials out of the cell.
6 0
3 years ago
What domain does eukarya evolve?
Arte-miy333 [17]
My best answer would be E<span>ukaryotic</span>
5 0
3 years ago
Which term refers to the ability of a substance to be hammered or rolled into sheets?
xz_007 [3.2K]

Answer:

malleability

Explanation:

the last two are relating to elelectricity and luster isnt something that can be hammered

7 0
2 years ago
Read 2 more answers
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