Name the following: (i) The organelle that forms the aster during cell division. (ii) A genetic disorder in which the blood does not clot. (iii) The permanent stoppage of menstruation in human females around the age of 45 years. (iv) The openings on the barks of trees through which transpiration occurs. (v) A gaseous plant hormone which promotes ripening of fruits.

State the exact location of the following structures: (a) Thyroid gland (b) Dura mater (c) Amniotic fluid (d) Papillary muscles (e) Islets of Langerhans

Arrange and rewrite the terms in each group in correct order to be in a logical sequence beginning with the term that is underlined: (a) Snake, Rabbit, Cabbage, Hawk. (b) Xylem, Soil water, Cortical cells, Root hair. (c) Receptor, Response, Effector, Spinal Cord. (d) Fovea, Lens, Cornea, Conjunctiva. (e) Testis, Urethra, Sperm duct, Epididymis.

Choose the odd one out from the following terms and name the category to which the others belong: (a) Used bandages, Pesticides, Face masks, Syringes. (b) Dust, Smoke, Carbon monoxide, Effluents (c) Uterus, Urethra, Urinary bladder, Ureter (d) Menstrual phase, Telophase, Follicular phase, Luteal phase (e) Malleus, Incus, Cochlea, Stapes

Differentiate between the functions of Urethra and Uterus.

Mention any two functions of amniotic fluid.

Mention any two secondary sexual characteristics in a 15-year-old boy.

What is the significance of the human testes being located in scrotal sacs outside the abdomen?

Give the biological term for the surgical method of contraception in human females.

During which phase of the menstrual cycle does the endometrium shed? (a) Follicular phase (b) Ovulatory phase (c) Menstrual phase (d) Luteal phase

Draw a neat, labelled diagram of a human sperm.

The diagram given below shows a section of the human ovary. (a) Name the process for the release of the part labelled 1. (b) Write the name of the structure marked 2.