Answer:
Organisms that produce chemical energy for the rest of the environment are the ones that produce chemical energy for the environment
Explanation:
Source: Trust me Bro
Answer:b. Facilitated transport
Explanation:in the usual activities of the cell,it's cell membrane is responsible for the movement of substance in and out of the cell.
Such substances include nutrients,water, oxygen etc.
The plasma membrane select the substances that it allows into the cell thus it is said to be selectively permeable.
The plasma membrane of the cell has a phospholipid bilayer made up of cholesterol, proteins and glycoproteins.
The proteins on the membrane are useful for facilitated diffusion.
In this diffusion process,the proteins helps to carry large molecules across the cell membrane.such molecules includes glucose,amino acids etc.
In the process energy is not expended so it is a type of passive transport.
A. The city receives direct sunlight all over the year since it is in tropical zone (less than 30 degrees in latitude). The solar intensity will not cause a significant difference in temperature since the solar intensity itself does not vary significantly.
<span>d. The decrease in ozone will increase solar intensity and the amount of ultra-violet rays. It may lead to a higher chance of sunburn. People may also have skin cancer because of ultra-violet.
I dont really know b and c neither.</span>
Answer:
Hello!
The answer is B. It is made up of amino acids.
Explanation:
Collagen:
Collagen is the most abundant protein found in mammals and makes up 25%of the entire protein count. Collagen is mostly present in the form of collagen fibers which give the extracellular matrix structure and support.
Amino acids:
Amino acids are organic molecules that possess the amino (-NH2) functional group. Amino acids are the building block of proteins. They combine together through peptide linkages to form polypeptides and polypeptides link together in the form of complex proteins.
Collagen possesses a complex structure of amino acids arranged in three alpha-chains wound around each other to give a triple-helix.
