BIOLOGY HIGH SCHOOL

In diffusion, movement of particles across a membrane is driven by differences in A. force.
B. shape.
C. concentration.
D. size.

Answers

Answer 1
Answer: c.  concentration;  moves from areas of high concentration to areas of low\
Answer 2
Answer: Its C. Concentration.
one area has HIGH Concentration, and another has a LOW Concentration.

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Can somebody please draw this equasion: 2H2 + O2 --> 2H2O

Answers

I attached a drawing of the equation.

The human stomach secretes an enzyme known as pepsin. This enzyme breaks down proteins into smaller chemical molecules called peptides. If pepsin was mixed in a laboratory with sugar molecules like glucose, what is the MOST LIKELY result?

Answers

Answer;
The most likely result is that Pepsin would probably NOT break down proteins in the test tube because pepsin is designed to work at very acidic pH ranges. 

Explanation;
Enzymes are very specific in that they work on a specific substrate and specific conditions such as optimum pH and temperature. Each enzyme has its own optimum pH and temperature; without which they would be inactive or denatured. For example higher temperatures higher than the optimum pH denatures the enzyme while low temperatures inactivates the enzyme.
Pepsin work best at low pH or acidic pH in the stomach, therefore, changing its pH will render it function-less and thus it wont break down proteins.
the question here is, is glucose a protein? No, it's not; it's a carbohydrate.

So pepsin would not break it down: it would most probably not react with glucose at all, since pepsin breaks down proteins, not carbohydrates.

About how thick is the biosphere ?

Answers

20 km (Is correct on grad point)
Microscopic organisms live at such extremes that, taking them into consideration, the thickness of the biosphere is much greater. Culturable microbes have been found in the Earth's upper atmosphere as high as 41 km (25 mi).

How does logging(chopping down trees)...benefit(helps) society

Answers

chopping off trees helps society by allowing new plants and trees that are not being allowed by the trees (not enough space/blocking sunlight) to grow.
another benefit is that we need wood to build lots of places and make lots of things that could help us in making our society a better place.
it allows people to get extra space that they probably need, as the population keeps on growing.. 
hope these helped! brainliest?

The cyanobacteria reproduce by simple cell division known as _____. fission fusion germination

Answers

Correct answer: A). Fission

The cyanobacteria reproduce by the fission. It is a mode of reproduction in which the parent cell divides to give two daughters cell. First of all the circular DNA replicates and then it moves to both the pole of the cell.

After that, the cell lengthens and then the equatorial plate of the cell constricts and  divide the plasma membrane into two identical cell

Hence, the correct answer would be option A.
Bacteria reproduce by Binary Fission (also known as "Budding"), a simple process in which many prokatyoric organisms reproduce; it involves cell division after the replication of the nucleoid.

pinworms have smooth bodies bilateral symmetry and complete digestive tracts. what type of animal are they

Answers


Pinworms are also known as threadworm or seat worm in some countries. Its Scientific Classification:
Kingdom: Animalia
Phylum: Nematoda
Class: Secernentea
Subclass:  
There are different types of pinworms in humans and animals. They spread by touching contaminated object they are also parasitic worms. 
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