Answer:
Heyyy
Plant cells require chloroplasts for the process of photosynthesis and to store food energy. And most leaves appear green due to this organelle present in it.
Whereas mitochondria present in both the plant and animal cells to produce the energy necessary for the cell's survival and functioning.
Hope it helps! :)
Answer: A . Has its collagen fibers randomly orientated.
Explanation:
In the microscopic anatomy of the bone, an osteon (basic microscope unit of the bone) can be arranged into two categories; woven bone or lamellar bone.
As the name suggests woven bone is characterized by the random orientation of the collagen fibers . These collagen fibers haphazardly form to give the visual appearance of an intertwined (woven) network of collagen fibers.
Due to the randomness of the collagen fibers orientation woven bone is thus mechanically weaker than lamellar bone. Woven bone is formed/produced when osteoblasts produce osteoids rapidly within the bone matrix thus woven bone has the ability to form quickly as needed.
Woven bone is thus immature bone or pathologic bone with no stress orientation, it has a high percentage of osteocytes per unit volume and a high rate of turnover.
Answer:
<u>Skin:</u> The skin acts as a barrier against external agents that could affect such as microorganisms, changes in temperature, etc.
<u>Excretes waste:</u> The excretion process, is done mainly by lungs (release of carbon dioxide), kidneys (elimination of excess compounds such as nitrogen) and the skin (sweat regulates temperature but also regulates the concentration of salts within the body)
<u>Nails:</u> It protects the soft tissues surrounding the distal phalanx, but it also exerts pressure over on the digits which allows more precission in the movements.
<u>Kidneys:</u> Eliminate waste from the blood and regulate body fluids, by generating urine.
<u>Bladder:</u> In charge of storing the urine produced by the kidneys, for the urination process to be controlled and not so frecuent.
This statement is false. Climate does affect the rate which weathering will occur. Weathering will occur when there is a physical or chemical process to the landscape. Freezing and thawing will turn minerals, like silicate, into clay. When the weather is hot it causes faster chemical weathering than it would in say colder locations. Rocks will also break down faster in a wet climate. So, climate can effect the rate of weathering.
B.
Special proteins are in charge of regulating the movement of substance through the double-membrane.
