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Descending arrangement of categories is called

Chlamydomonas is the example of -

Fungi

Lichens

Algae

None of these

Give two examples of Mollusca.

Explain how sieve tubes manage to be living ?

Write the characteristic symptoms of :

(a) Masstitis

(b) Foot - and - mouth - disease

The digestive system of nematodes have two openings in the form of ___

The given illustration represents the process of asexual reproduction.

Which of the following pairs of organisms shows a similar mode of reproduction?

With reference to 'Microplastics', consider the following statements: 1. Their sources include cosmetics, clothing and industrial processes.

2. They can persist in the marine and aquatic ecosystems.

Explain how the irrigation requirements depend on the nature of the crop?

The husk of the coconut is made up of

cells.

Name the component of air that has maximum solubility in water.

Which one of the following is the correct statement about the respective animal(s)?

(a) Donkey and horse should be considered one single species because they can successfully mate and produce an offspring.

(b) Donkey and horse are two different genera.

(c) Mule is a separate species.

(d) Mule is neither a donkey nor a horse.

The function of the coronary circulation is____.

Fungi are generally found growing on:

The partial pressures (in mm Hg) of oxygen $\left(O_2\right)$ and carbon dioxide $\left(C{O}_2\right)$ at alveoli (the site of diffusion) are:

Which tissue makes up the husk of coconut

The nitrogen oxide present in the atmosphere when gets washed away by rain help in which fixation?

____________ are an ancient group of lower plants that contributed significantly in the creation of fossil fuels.

Write the functions of plant tissue :-

1) Meristematic Tissue

(a) Apical Meristem

(b) Intercalary Meristem

(c) Lateral Meristem

Which of the following is a weed?

Question 1

Asexual reproduction takes place through budding in



(a) Amoeba

(b) Yeast

(c) Plasmodium

(d) Leishmania

What are the different ways an insect can affect a plant?

Humans, in order to get desired characters, carry out pollination between the flowers of chosen parent plants. Such a method of deliberate pollination is known as_____

Which of the following is an action of WBC on germs?

Of the following muscles types, which ones have long fibers and multinucleated?

Based on the statements given here choose the correct answer.
(1) In polar regions aquatic life is safe in water under frozen ice.
(2) Water has a high latent heat of fusion and the upper portion of ice does not allow the heat of the water to escape to the surroundings.

Choose the correct option.
Assertion [A] : Insulin can be produced in bacterial cells.
Reason [R] : Genetic engineering techniques can be used to transfer genes across species.

Do all cells respond to stimuli? Is this ability possessed by nerve cells only? [1 MARK]

What happens when methylene blue stain is added to cheek cell?

Mention two ways in which the ileum of a mammal is adapted for the absorption of digested food.

Which chemical is deposited in the cell wall of sclerenchyma ?

Why meristematic tissues are categorized into apical and intercalary while they have almost same characteristics ?

The major difference(s) between an amphibian and a reptile is/are___________.

Make a sketch of human nerve cell. What function do nerve cells perform ?

The book ‘On the Origin of Species’ was written by

Name the type of joint in your hand which helps you to pick the peanut.