The bonds that hold the two chains of an insulin molecule together are two disulfide bonds.
Insulin molecule is made up of two peptide chains. These chains are referred to as the A and B chains. The A and B chains are help together by the two disulfide bonds present between them. The A chain has an additional disulfide bond inside it. The A chain is 21 amino acids long and the B chain is 30 amino acids long in most of the species.
There are lots of abiotic and biotic factors in our biological community that made up our ecosystem.
<h3>
What makes a biological community?</h3>
All the populations living and interacting within a particular geographic area make up a biological (or biotic) community. The living organisms in a community together with their nonliving or abiotic environment make up an ecosystem .
In our community, we are interact with various another species, plants tree on which our life and dependent. Abiotic factor like land, air, water are some of the main abiotic factor which make up our ecosystem.
Learn more about biological community here:
brainly.com/question/17304846
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I would say B.
A, umm, don't crash trains, that's bad.
C, Lillian is wondering how fast a train can go, not at what curve will it fall.
D, Lillian isn't wondering about the size of the trains, just the speed.
Answer: The answer would be A.
Explenation:
<em>Chemical weathering is the breakdown of rocks, soils, and minerals through atmospheric or biologically produced chemicals.</em>
A pituitary glad tumor releasing too much hormones
