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GREYUIT [131]
3 years ago
15

Researching the question "Should we dissect?"

Biology
1 answer:
Flura [38]3 years ago
8 0
Dissection is ethically and socially against humans
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How are things transported through the membrane
AlladinOne [14]

Answer:

The mechanisms of transport across the cell membrane are as follow: 1- simple diffusion, 2- facilitated diffusion, 3- primary active transport and 4-secondary active transport

Explanation:

The cell membrane is a selectively permeable structure capable of transporting substances by different mechanisms. Simple diffusion is a type of passive transport (i.e. does not require energy) where non-polar molecules (e.g. O2, CO2) pass across the membrane by a process that does not require energy from the cell. Facilitated diffusion is another type of passive transport where larger polar molecules (e.g., glucose and amino acids) pass across the membrane by using specific transmembrane integral proteins. On the other hand, primary active transport is a type of active transport that uses chemical energy (e.g., ATP) to move substances such as metal ions (Na+, K+, Ca2+) across the cell membrane against their concentration gradient. Finally, secondary active transport is another type of active transport where transporter proteins are used to couple the movement of ions (e.g., H+ protons) down their electrochemical gradient to the transport of another ions/solutes against their concentration/ electrochemical gradient.

6 0
3 years ago
How do the plant cells placed in a medium for tissue culture change in terms of their degree of specialized?
Alinara [238K]
<span>A higher developed organism will have a higher degree of specialization.</span>
7 0
3 years ago
One of the key elements in creating a green economy is the construction of ________________.
Lubov Fominskaja [6]

Answer:

<u>A</u> One of the key elements in creating a green economy is the construction of <u>green buildings</u>.  

Explanation:

Any economy relies on businesses and buildings, so a green economy is going to need green buildings to support a green economy as well.

7 0
3 years ago
After experimenting with the injection of various solutions into specific areas of a rat's brain and observing the subsequent ba
Maurinko [17]
<span>The types of effects that the surgery had on the rats were documented with their bar-pressing behavior. The differences and changes from the injections effected the rats in certain ways. The location of the injection and which types that was more pleasurable for the rat is something that needs further investigation.</span>
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3 years ago
Describe the trophic structure of energy in an ecosystem
ale4655 [162]
As you go up in an ecosystem the bigger animals have less energy. While the organisms down at the bottom like plants that create their own energy have greater amounts. This is because energy is rated doing everyday things. As energy travels up the food pyramid, it looses more and more energy. This is knower as the 10% rule. In which every time you go up 10% of energy is lost.
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2 years ago
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