Answer:
Letter B.
Explanation:
Aquaporins, also known as "water channels," are the main transport of water through the membranes of plant, animal, and bacterial cells. These channels allow the water to travel into and within cells and, at the same time, exclude the passage of ions and solutes.
What makes letter B the correct answer, is the form of transport and shape of the channel that allow water according to the osmotic gradient. In this model, letter A shows simple diffusion, while C and D seem to illustrate gated channels.
They're called Enzyme. They're made up of proteins. They act as a biological catalysts that can speed up chemical reaction. They have an active site that certain substrates binds into it and form a product. Enzyme works under optimum pH and temperature and the active sites are not changed unless denatured.
A, I’m pretty sure, Meiosis helps with genetic diversity
People living nearby steep cliffs can impact them in
different ways, the people nearby will affect them into having a decrease area
available to grow crops as it is dangerous to even grow crops in areas like it,
another thing is, there will be an increase of landslide hazard as they are in
a steep cliff. Having steep cliffs are dangerous and will only cause them a
disadvantage.
