The diagram shows a chromosome. What name is given to the part labelled T?

Here are the answers to the multiple-choice questions:

8. The diagram shows a chromosome. What name is given to the part labelled T?
The part labeled 'T' is the constricted region that holds the two sister chromatids together. This region is called the centromere.
The correct option is A. centromere.

9. Which structure is absent in a nephron?
A nephron consists of the renal corpuscle (Bowman's capsule and glomerulus), proximal convoluted tubule, loop of Henle, and distal convoluted tubule. The collecting tubule (or collecting duct) is where several nephrons drain, but it is not considered part of an individual nephron.
The correct option is B. Collecting tubule.

10. Rabies is a disease that is transmitted through the bite of a rabid animal. In Zimbabwe the disease is prevented through
Rabies is a viral disease, and the most effective method for its prevention in animal populations, particularly canines, is vaccination.
The correct option is C. vaccination of canine populations.

11. The traditional 4Ps of the marketing mix are
The traditional marketing mix, often referred to as the 4Ps, consists of Product, Price, Place, and Promotion.
The correct option is B. product, price, promotion, place.

12. Which component of an animal is primary in the making of glue?
Traditional animal glues are primarily made from collagen, a protein found abundantly in the connective tissues (like skin, bones, tendons) of animals. When boiled, collagen breaks down into gelatin, which is the basis of glue.
The correct option is C. Collagen.

13. Which is the most dominant muscle in an animal's body?
Skeletal muscles are the most abundant type of muscle tissue in an animal's body, responsible for voluntary movement and making up the bulk of muscle mass.
The correct option is C. Skeletal muscle.

14. The end product of the Kreb's Cycle is a
The Krebs cycle (also known as the citric acid cycle) begins with acetyl-CoA (2 carbons) combining with oxaloacetate (4 carbons). At the end of the cycle, oxaloacetate is regenerated to continue the cycle. Therefore, the end product that is regenerated is a 4-carbon compound.
The correct option is B. 4 carbon compound.