Plant Biology and Classification

Ans - 3

Ans - 3

Binomial nomenclature is a formal system of naming species of living things by giving each a name composed of two parts, both of which use Latin grammatical forms, although they can be based on words from other languages. It is described in Systema Naturae.

Phytoplankton produce their required sugar through photosynthesis. As they are able to produce their own energy with the help of light, they are considered autotrophic (self-feeding). Phytoplankton and other autotrophs are called primary producers, and make up the bottom of the food web.

Swedish naturalist Carolus Linnaeus introduced binomial nomenclature.

  Bryophytes are called amphibians of the plant kingdom.

Refer to question 2.

Refer to question no. 8

Kingdom Animalia is characterized by eukaryotic and heterotrophic organisms.

Order of classification is KingdomPhylum, Class, Order, Family, Genus, Species.

Artificial system includes the ordering of organisms into groups on the basis of non-evolutionary features.

Different animals and plants have habitant in different regions depending upon their body structure and adaptability. E.g. animals like Yak, Lions, ants live on ground and are known as terrestrial animals. Animals like fish, whales, sharks live in water and are known as aquatic animals crab is an animal which is generally found on the sea shores or beaches as it is neither completely terrestrial nor aquatic.

Cactus is a plant which grow in deserts. Thus to avoid the loss of excess water through stomata its leaves are reduced to spine like structures and it is the stem in these plants which is green in colour and performs the functions of photosynthesis.

Cuscuta is a parasite which obtains its nourishment from living hosts.

 Grana are absent in the chloroplast of algae.They have starch-accumulating structures called pyrenoids.