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The energy transferred from a lower trophic level to the next higher level:

Fill in the blanks :

(a) Transpiration is the loss of water as water..................... from the .............parts of the plant.

(b) Closing of...................and shedding of leaves reduce.................

(c) Transpiration helps in creating .......................force and in eliminating excess...............................

The highest inorganic constituent of urine

The ability of diaphragm to function can be attributed to its____.

Name and explain the function of the hormone secreted by the pituitary gland in humans.

Question 1 (iii)
A survey conducted by an organization for the cause of illness and death among the women between the ages 15−44 (in years) worldwide, found the following figures (in %):
$\begin{array}{ccc}\text{S.No.}& \text{Causes}& \text{Female fatality rate}\left(\%\right)\\ 1.& \text{Reproductive health conditions}& 31.8\\ 2.& \text{Neuropsychiatric conditions}& 25.4\\ 3.& \text{Injuries}& 12.4\\ 4.& \text{Cardiovascular conditions}& 4.3\\ 5.& \text{Respiratory conditions}& 4.1\\ 6.& \text{Other causes}& 22.0\end{array}$
(iii)Try to find out, with the help of your teacher, any two factors which play a major role in the cause in (ii)(Reproductive health conditions) above being the major cause.

Identify labelled structures in the diagram of chloroplast ____.

The parts of the respiratory tract that is responsible for keeping us healthy by preventing the entry of germs are:

After generation of action potential, the recovery process is called _____.

"In human cells, no biochemical reaction is accurate.” This applies to DNA replication also. What could be the possible advantageous outcome of this on DNA?

On what bases are plants and animals put into different categories?
[3 MARKS]

Which of the following pollination mechanism/s results in cross fertilisation?

The membranous cover of the ovum at ovulation is

Match the symptoms given below with the disease

1. Protruding tongue , bloated abdomen,

bradycardia, hypotension i. Graves disease

2. Exophthalmos, palpitations ,

jittery hands and inability to sleep ii. Hyperthyroidism

3. Sluggishness,fogginess, fatigue

impaired memory, and in general mental ability iii. Cretinism

4. Increased BMR, Hyperexcitability, enlarged bones iv.Hypothyroidism

Give the nuclear composition of ${}_8{O}^{18}$.

Respiration is a vital function of the body. Justify this statement.

Which amongst these is one of the end product of anaerobic respiration?

Which of the following is related to divergent evolution?

Why veins have thin walls?

What is the role of platelets in blood?

Most of the neurons in our body are ___

Write two evidences in favour of evolution

What is the name given to the process of using absorbed food for producing energy?

An automatic response that doesn't involve the brain is called ____________.

Why there is synaptic gap present between two neurons? Why don't they touch each other?

Is there any formation of water as a product in the photosynthesis chemical reaction???????

Reason of diversity in living being is

Why does the body show sexual maturation at the specific age of puberty?

What are the opening on the barks of older stems called?

Enter 1 word only.

It is said that small intestine is the site for the complete digestion of Carbohydrate, protein and fat ? Why is it so?

Which hormone is responsible for adapting the body to stresses like extreme heat and cold?

1. Mention the site of complete digestion of carbohydrate, proteins and fats in humans.

During day-time, the stomata are wide open primarily for the intake of ___________ for photosynthesis.

Which part of the brain is responsible for the movement of right side body parts?

When exactly the polarisation of neuron membrane take place?

From where do the following take in oxygen ? (i) prawn (ii) rat.

Why do leaves in a plant wilt?

Which of the following happens during Telophase?

Central canal of the spinal cord contains:

Which ability prevents some people from getting a particular disease while affecting others?

Which of these shows the correct order in which blood flows through the blood vessels:

Bundle of capillaries within the bowman's capsule

Match the descriptions with the following images.

A.B.

C. D.

i. Egg and the sperm are injected into the fallopian tubes.

ii. The embryo is transferred to the uterus.

iii. The sperm is directly inserted into the egg and then implanted in the uterus.

iv. Sperms are injected into the uterus.

State three characteristics of hormones. [3 MARKS]