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What is another name for ADH hormone?

Regarding the assertion and reason; choose the correct option.

Assertion [A]: Caecum is a blind sac that contains symbiotic micro organisms.

Reason [R]: E. coli produces vitamin B12, vitamin K, vitamin B1, and vitamin B2.

Which of the following is/are natural method(s) of contraception?

For the given assertion and reason, choose the correct option.

Assertion[A]: Fungi are saprophytic organisms.
Reason[R]: They feed on dead and decaying organisms for nutrition.

A chemical substance P is made and secreted by the meristematic tissue at the tip of the stem (or shoot) of a plant. The chemical substance P is responsible for a phenomenon Q in plants in which the stem bends towards a source of light. The same chemical substance P has an opposite effect on the root of a plant. It causes the root of a plant to bend away from the source of light in a process called R.

(a) What is the chemical substance P?

(b) State, whether P prefers to, remains in the sunlight side of a stem or in shade.

(c) What is the effect of substance P on the rate of growth of (i) a root, and (ii) a stem?

(d) What is the name of process (i) Q and (ii) R?

(e) What is the general name of chemical substances like P? Name another substance which belongs to this class of chemical substances.

The statistical study of human population is termed as

Where is the macula lutea located?

Which of the following has the longest small intestine ?
(a) carnivore (b) omnivore (c) herbivore (d) autotroph

The male insects have only one sex chromosome, hence they are labelled ___.

What are the two inorganic substances required by the autotrophs to carry on photosynthesis?

What are the tiny air sacs in the lungs called? __

Does transpiration take place in flowers

Name the part of the lungs where exchange of gases take place.

Protochordata marks the evolution of an important feature in the Animal Kingdom. Which of the following options best explains this?

Bubonic plague is caused by ___.

Why is the spinal cord and the brain referred to as the central nervous system?

A. Most primitive member of the human race .

B. Cranial capacity is $460{\text{cm}}^3$.

C. First fossils were discovered from France.

Which of the above are true regarding Ardipithecus ramidus?

Color blindness is inability to distinguish between certain colors. This disease is caused due to a _______.

Imagine one cell (A) has undergone one mitotic division and another cell (B) has completed its meiotic division. How many cells would the two produce?
Cell A: .....................
Cell B: .....................

Q1) why do dicot leaves have more number of stomata on their under surface.

Q2) differencee between i )photosynthesis and chemosynthesis and ii) photosythesis and respiration

Earth is protected from UV radiation by a layer of:

An organism which may be considered to be a kind of plant and reproduces by budding is :
(a) Paramecium
(b) Bread Mould
(c) Hydra
(d) Yeast

Write the names of all the major endocrine glands present in the human body. Which of these glands also function as exocrine glands?

A leaf-shaped gland is located above the intestine. The secretion of this gland regulates the metabolism of sugar in blood. What is this gland?

Which nerve comes into play when a person swings a golf club?

In the blind spot, where the optic nerves leave the eyes, ___ .

An ecological pyramid shows the relationship of biomass, productivity or energy at different trophic levels. Consider the following statements about ecological pyramids

What are the two types of clones?

Carrier of malaria-causing protozoan is:

P in the heart have thicker muscular walls than Q does. Also, R ensures that blood does not flow back when the atria or ventricles contract.
Identify P, Q and R.

When I look out side then I see rain is foling down then in my house fruit on tree are become tasty why

What is Chyme? What happens when it passes through Duodenum? Please be quick experts..

The triplets of bases in DNA that code for amino acids are called

What would happen if we kept a fresh grape in concentrated salt water solution?

The phenotypic ratio of a monohybrid cross is _________

Which of the following statements about alleles is not true?

The percentage of water used for photosynthesis is____________.

Ripening of bananas is associated with

How was wind energy harnessed traditionally?

Which of the following statements are true?
(i) Sudden reaction in response to the stimulus is called reflex action.
(ii) Sensory neurons carry signals from the spinal cord to muscles.
(iii) Motor neurons carry signals from receptors to spinal cord.
(iv) The path through which signals are transmitted from a receptor to a muscle or a gland is called reflex arc.

A person with type AB blood is considered universal recipient would have ______ antigens on red blood cells, and _______ antibodies in the plasma.

Two factors responsible for the contrasting pairs of a character in Mendelian crosses are called_________.