The laws of heredity were discovered by Gregor Mendel in about 1856-1863. Mendel conducted experiments in plant hybridization, collecting the results of cross-fertilizing hundreds of edible pea plants. The results from Mendel’s experiments confirmed his ideas about heredity: the law of segregation, which has become known as Mendel’s First Law, and the law of independent assortment, also known as Mendel’s Second Law.

Correct Option: A

The laws of heredity were discovered by Gregor Mendel in about 1856-1863. Mendel conducted experiments in plant hybridization, collecting the results of cross-fertilizing hundreds of edible pea plants. The results from Mendel’s experiments confirmed his ideas about heredity: the law of segregation, which has become known as Mendel’s First Law, and the law of independent assortment, also known as Mendel’s Second Law.

A Red Data Book contains lists of species whose continued existence is threatened. Species are classified into different categories of perceived risk. Each Red Data Book usually deals with a specific group of animals or plants (e. reptiles, insects, mosses).

Correct Option: B

A Red Data Book contains lists of species whose continued existence is threatened. Species are classified into different categories of perceived risk. Each Red Data Book usually deals with a specific group of animals or plants (e. reptiles, insects, mosses).

Deciduous means “falling off at maturity” or “tending to fall off”. Deciduous trees or shrubs lose their leaves seasonally. The converse of deciduous is evergreen.

Correct Option: A

Deciduous means “falling off at maturity” or “tending to fall off”. Deciduous trees or shrubs lose their leaves seasonally. The converse of deciduous is evergreen.

Vitamin B₁: Thiamine; Vitamin B₂: Riboflavin; Vitamin B₆: Pyridoxine; Vitamin B₁₂: Cyano-cobalamin.

Correct Option: C

Vitamin B₁: Thiamine; Vitamin B₂: Riboflavin; Vitamin B₆: Pyridoxine; Vitamin B₁₂: Cyano-cobalamin.

There are rows and columns in any spreadsheet. Each column has a capital letter on the top to show what column it is. Each row has a number to the immediate left of the first column, to show what row it is. So address of the cell in the first column, first row is A1.

Correct Option: D

There are rows and columns in any spreadsheet. Each column has a capital letter on the top to show what column it is. Each row has a number to the immediate left of the first column, to show what row it is. So address of the cell in the first column, first row is A1.