Assertion (A): Movement of organism from one place to another and back is called migration.
Reason (R): Eel is an example for anadromous migration.

Which of the following plant species is the most suitable oilseed for biodirect production?

Identify the wrong statement.

In embryo development of human beings, how long does it takes for a zygote to convert into morula?

Which of the following statement is not correct?
(i) Interstitial cells are seen surrounding the seminiferous tubule.
(ii) Nurse cells secrete inhibin.
(iii) Males have single prostate gland which encircles the urethra.
(iv) Insemination, Fertilization, Implantation, Placentation, and Parturition.

In genetic engineering, a DNS segment (gene) of interest is transferred to the host cell through a vector. Consider the following four agents (A to D) in this regard and select correct option about which one or more of these can be used as vector/vectors.
A) A bacterium
B) Plasmid
C) Plasmodium
D) Bacteriophage

Select the correct statement from the following.

In this type of fossilization, the molecules of the dead body is replaced for molecules by minerals and the original substance being lost through disintegration.

_____ is a sexually transmitted disease caused by a fungus

_____________ is called age of Invertebrates

______ is needed for normal functioning of reproductive structures

Which of the following is a behavioural adaptation?

Expulsion of baby from the mother's womb is called _____

______ is a process by which the proglottids are cut off from the tapeworm.

_________Can be confirmed by widal test.

The lygaeus type (XX - XY) type of sex determination is seen in ______

Competition between species leads to

CO₂ is not released during

The organization which published the red list of species is

Find the wrongly matched pair.

Klinefelters syndrome is characterized by a karyotype of ____.

Cirrhosis of liver is caused by chronic intake of ______

Genes G S L H are located on same chromosome. The recombination percentage is between L and G is 15%, S and L is 50%, H and S are 20%. The correct order of genes is _____.

Arrange the layers of anther wall from locus to periphery