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Which one of the following organism shows the fragmentation reproduction?

The instrument for measuring blood pressure is called :
(a) manometer
(b) sphygmomanometer
(c) barometer
(d) potentiometer

Which of the following plant hormones induce parthenocarpy?

Reflex actions which involve brain are called as _________ .

Which of the following endocrine gland produces the hormone calcitonin?

Formation of acetyl CoA in the process of respiration constitutes the:

Fertilization in plants occurs in the

Where does fertilization in plants occurs in plants?

Which of the following plant organs act as storage places for different minerals?

The energy produced during respiration is stored in the form of __.

Question 14
Which of the following statement(s) is (are) true about respiration?

(i) During inhalation, ribs move inward and the diaphragm is raised.
(ii) In the alveoli, exchange of gases takes place i.e., oxygen from alveolar air diffuses into blood and carbon dioxide from the blood into the alveolar air.
(iii) Haemoglobin has a greater affinity for carbon dioxide than oxygen.
(iv) Alveoli increase surface area for exchange of gases.

(a) (i) and (iv)
(b) (ii) and(iii)
(c) (i) and (iii)
(d) (ii) and (iv)

Internal fertilisation does not occur in ______ and ______.

You are a responsible citizen of your country and you keep your country clean. Which of the following will you support as a responsible citizen in relation to sanitation?

If by radiation all nitrogenase enzymes are inactivated, then there will be no

Name the organisms in which asexual reprodcution takes place by budding.

The given diagram represents the human ear. Name the part A in the diagram.

In a synapse, the chemical signal is transmitted from:

The stage at which implantation occurs is

_____ is the part of the brain which is an accumulation and release centre of neurohormones.

Asexual reproduction through budding takes place in :
(i) Amoeba and Yeast
(ii) Yeast and Hydra
(iii) Hydra and Plasmodium
(iv) Corals and Sponges

(a) (i) and (ii)
(b) only (ii)
(c) (i) and (iii)
(d) (ii) and (iv)

Wing of an insect and forelimb of a bird are :
(a) analogous organs
(b) analeptic organs
(c) homologous organs
(d) homophobic organs

Circular muscles around the lens are called __________.

Q23. Consider the following statements about Biosignature:

1. A biosignature is sometimes called chemical fossil or molecular fossil.

2. It is any substance – such as an element, isotope, molecule, or phenomenon – that provides scientific evidence of past or present life.

Select the correct answer using the codes given:

The figure given below represents an experimental set up with a weighing machine to demonstrate a particular process in plants. The experimental set up was placed in bright sunlight. Study the diagram and answer the following questions :

(a) Name the process intended for study.

(b) Define the above mentioned process.

(c) When the weight of the test tubes A and B is taken before and after the experiment, what change is observed ? Justify.

(d) What is the purpose of keeping the test tube B in the experimental set up ?

Name the following :
(a) The process in plants which converts light energy.
(b) Organisms that cannot prepare their own food.
(c) Organisms that can prepare their own food.
(d) The cell organelle where photosynthesis occurs.
(e) The cells which surround a stomatal pore.
(f) An enzyme secreted by gastric glands in stomach which acts on proteins.

This pedigree shows the inheritance of colour blindness or sex-linked trait. Is this trait dominant or recessive? Is the mother of the colourblind girl in the F3 generation colourblind, a carrier or a person with normal colour vision? Explain. [4 MARKS]

Which of these does not form organic molecules in living beings?

Arrange the following in correct order through which the air flows upto alveoli [2 MARKS]
Larynx, alveoli, trachea, pharynx, external nostrils, internal nostrils, nasal cavities.

Which of the following diseases can be treated with thyroxine supplementation?

1. Graves' Disease

2. Hypothyroidism

3. Cretinism

4. Hyperthyroidism

Which endocrine gland secretes hormones that regulate blood sugar level?

What would happen to RBCs (red blood cells) placed in a beaker containing water?

A Mendelian experiment consisted of breeding pea plants bearing violet flowers with pea plants bearing white flowers. What will be the result in F1 progeny

name the finger like structure present in cuscuta which helps in intake of food and water from host plant.

Nucleus of the bud is formed by which of the following types of division?

Given ahead is a diagrammatic sketch of the sectional view of a germinating pollen grain. Study the same and then answer the questions that follow :
(a) Name the parts labelled 1, 2, 3, 4,and 5
(b) Where does the germination of the pollen grain takes place and how ?

(c) What is the function of the part labeller `4' ?
(d) What happens to the part labelled '5' during the process ?

(a) State whether the following statements are TRUE (T) or FALSE (F) :

(i) Fertilisation occurs in vagina. (T/F)

(ii) Uterus is also known as birth canal. (T/F)

(iii) Nutrition and oxygen diffuse from the mother's blood into the foetus's blood through amminon. (T/F)

(b) Rewrite any two of the wrong statements by correcting only one word either at the beginning or at the end of the sentence.

Q16) Maharashtra Government declared the Blue Mormon (Papilio polymnestor) as its State butterfly.In reference to this, which of the following statements are true?

1) Blue Mormom is the largest butterfly found in India

2) With this, Maharashtra became India’s second state after Kerala to have a State butterfly

3) The species of butterfly is primarily found in Sri Lanka and South India (mainly restricted to the Western Ghats of Maharashtra, South India and coastal belts)

Code:

The area of retina in the human eye that contains only cone cells is