Features Of Organisms

Animals do not have cell walls, whereas plants have cellulose cell walls. Animals are heterotrophic, whereas plants are autotrophic and photosynthesise.

Animals store carbohydrate as glycogen. Plants store carbohydrate as starch.

Mammals have a body covered in hair or fur. Female mammals produce milk to feed their young.

Amphibians have moist, permeable skin, whereas reptiles have dry scales. Amphibians lay eggs in water without shells, whereas reptiles lay eggs on land with leathery shells.

A whale is classified as a mammal because it has hair on its body rather than scales, it breathes air using lungs rather than gills, and it produces milk to feed its young.

Insects have six legs, arranged as three pairs. Arachnids have eight legs, arranged as four pairs.

A crustacean has more than four pairs of jointed legs. A crustacean has two pairs of antennae.

Myriapods have many legs with one or two pairs per body segment, whereas insects have only six legs in total. Myriapods also have a long segmented body without a distinct thorax and abdomen, whereas insects have three distinct body sections of head, thorax and abdomen.

The organism belongs to the reptile group.

The organism belongs to the insect group.

First, check for multicellularity and heterotrophic nutrition to confirm that the organism is an animal. Next, check for the presence of a backbone to confirm that it is a vertebrate. Finally, check for hair or fur on the body and the production of milk by females to classify it as a mammal.

Prokaryote cells have no true nucleus, as their genetic material is not enclosed within a nuclear membrane. Prokaryotes are microscopic, single-celled organisms.

Fungi are saprotrophic, digesting and absorbing nutrients from dead organic matter, whereas plants are autotrophic and photosynthesise to make their own food.

Protoctists are eukaryotic organisms that do not fit the criteria for animals, plants or fungi. They show a wide range of features, including varied modes of nutrition and the presence or absence of cell walls, so they are placed in their own kingdom.

Ferns reproduce by spores rather than by seeds. Ferns do not produce flowers.

Dicotyledons have two cotyledons in their seeds, whereas monocotyledons have only one cotyledon. The leaves of dicotyledons have a network of branching veins, whereas monocotyledon leaves have parallel veins. Dicotyledon flower parts are in multiples of four or five, whereas monocotyledon flower parts are in multiples of three.

The organism belongs to the plant kingdom. The organism belongs to the fern group.

A flowering plant can be classified as a dicotyledon by checking that its seeds contain two cotyledons. It can also be confirmed by observing a network of branching veins in the leaves and flower parts arranged in multiples of four or five.

A virus has an outer protein coat. A virus contains genetic material in the form of DNA or RNA.

Viruses are not placed into any of the five kingdoms because they do not have a cellular structure and are not made of cells. They also cannot carry out life processes independently and can only reproduce inside a host cell.