Explanation

• Arthropods are divided into different classes based on body structure, legs, and antennae.
• Spiders, ticks, and mites have eight legs and no antennae, which classifies them differently from insects.
• These belong to the class Arachnida.

Last verified on 11-02-2026

Explanation

Gymnosperms are plants with "naked seeds," meaning their seeds are not enclosed within a fruit.

This group includes conifers like pine trees.

Explanation

There are Two types of vitamins

1. Water soluble

2. Fat soluble

Explanation

• Bile is produced by the liver and stored in the gallbladder.
• It is released into the small intestine to facilitate fat digestion and absorption.
• Bile breaks down fats into smaller particles, making it easier for enzymes to digest them.

Explanation

Snails are mollusks, belonging to the phylum Mollusca.

They typically have a soft body and, in many cases, an external shell.

Explanation

Origin of species using Natural Selection was the work of Charles Darwin.

It was published on 24 November 1859,

..

Charles Darwin's discoveries included.

four different species of giant ground sloth (some of the largest land mammals ever to have lived), a gomphothere,

and the remains of an extinct horse.

ND16-8-2023

Explanation

Bile is produced by the liver and stored in the gallbladder.

It is important for the digestion and absorption of fats in the small intestine.

Explanation

Cytosine does not form a bond with adenine because its hydrogen bond donors and acceptors are not complementary.

Cytosine typically forms three hydrogen bonds with guanine, whereas adenine forms two hydrogen bonds with thymine.

The patterns of hydrogen bonding in cytosine and adenine do not match, preventing the formation of a stable pair.

Explanation

The statement that tropical rainforests accumulate more organic matter on the forest floor than temperate grasslands is incorrect.

In reality, the decomposition rate in tropical rainforests is so rapid due to high temperatures and humidity that organic matter does not accumulate significantly on the forest floor.

In contrast, temperate grasslands may accumulate more organic matter over time due to slower decomposition rates caused by cooler temperatures and seasonal variations.

Explanation

When crossing an organism with genotype Aa (heterozygous) with one that has genotype aa (homozygous recessive), the offspring can inherit either the A or a allele from the Aa parent and only the a allele from the aa parent.

This results in a 1:1 ratio of genotypes, with half of the offspring being Aa (heterozygous) and the other half being aa (homozygous recessive).

The incorrect ratio of "1/2 Az & 1/2 aa" mentioned in the question is likely a typo.