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Arrange the following in descending order of number of species in the Amazonian rain forest.
(a) Plants
(b) Birds
(c) Fishes
(d) Invertebrates
(e) Mammals
Choose the correct answer from the options given below:

Given below are two statements: one is labelled as Assertion A and the other is labelled as Reason R.
Assertion A: In an experiment, Mendel observed that the F1 progeny plants are all tall and none are dwarf.
Reason R: Stem height is a contrasting trait, with tall being dominant and dwarf being recessive.
In the light of the above statements, choose the most appropriate answer from the options given below :

Adaptive radiation in placental mammals and Australian Marsupials leading to similarity between distant species is an example of

The method of directly of injecting a sperm into ovum in assisted reproductive technology is called:

Given below are two statements: one is labelled as Assertion A and the other is labelled as Reason R.
Assertion A: In recombinant DNA technology, lysozyme is used for disrupting bacterial cells while cellulase is for plant cells.
Reason R: Isolation of genetic material needs disruption of cells.
In the light of the above statements, choose the most appropriate answer from the options given below:

In frogs, the number of pairs of cranial nerves arising from the brain are

The correct sequence of adult cell cycle phases is

Given below are two statements:
Statement I: When any plane passing through the central axis of the body divides the organism into two identical halves, it is called radial symmetry.
Statement II: In phylum Echinodermata, both adults and larvae are radially symmetrical.
In the light of the above statements, choose the most appropriate answer from the options given below:

Which of the following are characteristic features of Solanaceae family?
(a) Flowers are bisexual and actinomorphic
(b) Calyx have five sepals and are united
(c) Androecium have five stamens and are epipetalous
(d) Ovary is inferior
Choose the correct answer from the options given below:

Which one of the following statements is incorrect?

Arrange the following elements in descending order of their contribution percentage weight of the human body.
(a) Oxygen
(b) Carbon
(c) Hydrogen
(d) Nitrogen
Choose the correct answer from the options given below:

Which of the following is not a prokaryote?

Symbiotic association between fungi and algae are called

Match List-I with List-II.
List-I:
A. Marginal placentation
B. Axile placentation
C. Parietal placentation
D. Free central placentation
List-II:
I. Argemone
II. Tomato
III. Primrose
IV. Pea
Choose the correct answer from the options given below:

Given below are two statements:
Statement I: Chromosomes are fully condensed at the end of prophase I.
Statement II: Meiosis I resembles mitosis.
In the light of the above statements, choose the most appropriate answer from the options given below:

Which of the following is not a part of human central neural system?

Match List-I with List-II.
List-I:
A. Family
B. Genus
C. Class
D. Phylum
E. Order
List-II:
I. Sapindales
II. Dicotyledonae
III. Anacardiaceae
IV. Angiospermae
V. Mangifera
Choose the correct answer from the options given below :

The number of action potentials generated by sino-atrial node (SAN) in a healthy human is per minute.

Match List-I with List-II.
List-I:
A. Spherical
B. Rod
C. Comma
D. Spirillum
List-II:
I. Vibrio
II. Cocci
III. Bacilli
IV. Spirilla
Choose the correct answer from the options given below:

Length of the stem at time 0 is 20 cm. The arithmetic growth rate is 30 cm per day. What is the length of the stem at the end of the $7^{th}$ day?