Hello.
The answer is <span>Passive transport.
</span>The movement of substances<span> in and out of a </span>cell<span> membrane </span>without the use of energy<span> by the </span><span>cell.
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Have a nice day
Answer:
the design of rabbit hutches is based on this system
Explanation:
it provides a mixture of grazing area and a solid floor for sleeping
Heart attack and strokes are caused by interruptions to the normal flow of blood to the heart or brain. without access to oxygen-rich blood and nutrients, heart or brain cells begin to malfunction and die. this cell death can set off a series of harmful effects throughout the body.
Answer:
C
Explanation:
I'm pretty sure it's actually C and not A. It's asking for human-related release from greenhouse gases. Humans don't cause volcanic eruptions and aren't in control of wildlife's respirations. The solar cycles has to do with the magnetic flux that rises to the surface of the sun and lasts 11 years. Intensive agriculture increases pollution which harms the environment.