Type 2 diabetes mellitus may reflect declining receptor sensitivity to insulin rather than decreased insulin production. most type ii diabetes do not produce insulin.
true / false.

Type 2 diabetes mellitus generally reflect declining receptor sensitivity to insulin rather than decreased insulin production- True.

Most Type II diabetes do not produce insulin- False.

Explanation:

Diabetes mellitus may be defined as the group of metabolic disorder that re characterized by the high blood glucose levels in the body of an individual.The receptor sensitivity decreases towards insulin decreases in Type II diabetes.

The insulin is produced in the proper amount during Type II diabetes. The receptors are unable to respond towards the diabetes.

Thus, the answer is a)-True

                                b)-False.

fertilization, pictured in figure 24.23a is the process in which gametes (an egg and sperm) fuse to form a zygote. the egg and sperm each contain one set of chromosomes. to ensure that the offspring has only one complete diploid set of chromosomes, only one sperm must fuse with one egg. in mammals, the egg is protected by a layer of extracellular matrix consisting mainly of glycoproteins called the zona pellucida. when a sperm binds to the zona pellucida, a series of biochemical events, called the acrosomal reactions, take place. in placental mammals, the acrosome contains digestive enzymes that initiate the degradation of the glycoprotein matrix protecting the egg and allowing the sperm plasma membrane to fuse with the egg plasma membrane, as illustrated in figure 24.23b. the fusion of these two membranes creates an opening through which the sperm nucleus is transferred into the ovum. the nuclear membranes of the egg and sperm break down and the two haploid genomes condense to form a diploid genome.

explanation:

they deliver oxygen to the blood