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What type of antennae do the cockroaches have?

The function of our visceral organs is controlled by

(a) sympathetic and somatic neural system

(b) sympathetic and parasympathetic neural system

(c) central and somatic nervous system

(d) None of the above

Why potato is a stem instead of being a root ?

It's a modification of stem but appropriate reasons are required ..

What are the two major types of leaves? Explain in brief by giving examples.

Which of the following is a disease caused by a nematode parasite?

Which of the following plant growth regulators (PGRs) promote root initiation, flowering, and induced parthenocarpy?

Differentiate between the followings

(a) Repetitive DNA and satellite DNA

(b) mRNA and t RNA

(c) Template strand and coding strand

Dikaryophase is not observed in

(a) penicillium

(b) ustilago

(c) Albugo

(d) puccinia

Chlorophyll a,similar to green plants,is found in_______

(a) Anabaena

(b) Euglena

(c) Nitrobactor

(d) All of these

What substance is produced by the oxidation of pyruvate and feeds into the citric acid cycle?

Which of the following is not released by the stomach?

Match the lists and find the correct option

$\begin{array}{cccc}& \text{I}& & \text{II}\\ \text{(a)}& \text{Early seed production in conifers}& \text{(i)}& \text{indole substance}\\ \text{(b)}& \text{Seed development and maturation}& \text{(ii)}& \text{Terpene substance}\\ \text{(c)}& \text{Lateral shoot growth}& \text{(iii)}& \text{Volatile substance}\\ \text{(d)}& \text{Root hair formation}& \text{(iv)}& \text{adenine derivative}\\ & & \text{(v)}& \text{Carotenoid derivative}\end{array}$

On which of the following, is five kingdom classification based?

Plants of this group are diploid and well adapted to extreme conditions. They grow bearing sporophylls in compact structures called cones. The group in reference is

(a) monocots (b) dicots (c) pteridophytes (d) gymnosperms

Mammals originated during the period-

For a
normal eye, the far point is at infinity and the near point of
distinct vision is about 25cm in front of the eye. The cornea of the
eye provides a converging power of about 40 dioptres, and the least
converging power of the eye-lens behind the cornea is about 20
dioptres. From this rough data estimate the range of accommodation
(i.e., the range of converging power of the eye-lens) of a normal
eye.

What are those structures that appear as 'beads-on-string' in the chromosomes when viewed under electron microscope?

Which of the following pairs of organisms is uricotelic?

'Shellac' secreted by lac insects is

Which is true for emasculation?

Animals with notochord are called

‘Systema’ means:

Somatogamy is the fusion of __________

Human beings are formed by evolution. Does human beings evolve into something else?

Ink: Pen:: Blood : ?