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Name the process involving the combination of ADP with an inorganic phosphate to produce ATP.

Enter 2 words or less.

Question 6

Explain the difference between self-pollination and cross-pollination.

___ is also known as the theory of Organic Evolution.

Circular muscles around the lens are called __________.

Identify the part.

-It controls the flow of partially digested food.

-Present between duodenum and pylorus.

____ are located in the brain and spinal cord, which interconnect the sensory and motor neurons.

Glomerular hydrostatic pressure is present in

Question 7

The maleness of a child is determined by



(a) the X chromosome in the zygote

(b) the Y chromosome in the zygote

(c) the cytoplasm of the germ cell which determines the sex

(d) sex is determined by chance

What is the function of valves ?

Question 5

Draw the structure of a neuron and explain its function.

What is artificial selection?

Which of the following contracts during normal inspiration?

Question 13

Iodine is necessary for the synthesis of which hormone?



(a) Adrenaline

(b) Thyroxine

(c) Auxin

(d) Insulin

Definition of Transpiration:

Specific ions are acquired by root hairs against the concentration gradient by ___________.

Copy and complete the following table, using information from the boxes below. (Draw an X if there is no information to put in certain boxes.)

What are the different types of muscle tissue? Also, list which of these are voluntary or involuntary. [3 MARKS]

What do you understand by sleep deficit? Why does the amount of sleep required to rejuvenate people vary from one person to another

Which of the following diagram illustrates the distribution of $N{a}^{+}$ and $K^{+}$ ions in a section of non-myelinated axon which is at resting potential?

The ages of stars and planet are often expressed in:

With the help of suitable diagram describe the structure of neuron.

Region in the retina that does not have any photoreceptors.

Enter 2 words only.

Will the natural replenishment of the soil take place, even if decomposers are not there?

Match the following.

$$\begin{array}{cc}A.Addiso{n}^{\prime }sdisease& 1.Pituitary\\ B.Tetany& 2.Thyroid\\ C.Acromegaly& 3.Adrenalcortex\\ D.Myxoedema& 4.Parathyroid.\end{array}$$

A woman uses a device X made of a common metal for preventing pregnancy. This device works by preventing the implantation of the fertilised egg cell (or embryo) in the female organ Y.
(a) What are the two names of device X?
(b) Name the organ Y.
(c) Can this method of contraception protect a woman from acquiring an STD?

Change in the genetic constitution to obtain a desirable character is the characteristic of ________