311. The animals in which the body cavity is absent are known as __________.

1. Coelomates
2. Wild
3. Pseudocoelomates
4. Acoelomates

Option “4” is correct
An acoelomate is defined as an animal that does not possess a body cavity. Unlike coelomates (eucoelomates), animals with a true body cavity, acoelomates lack a fluid-filled cavity between the body wall and digestive tract
312. Biological names are generally derived from which language?

1. French
2. Latin
3. Mexican
4. German

Option “2” is correct
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.
313. The members of Rhodophyceae are commonly called _________ algae.

1. Green
2. Brown
3. Red
4. Yellow

Option “3” is correct
The members of rhodophyceae are generally called red algae, as it imparts often a red colour to the thallus. There are about 400 genera and 4000 species of red algae.
314. The members of chlorophyceae are commonly called _________ algae.

1. Green
2. Brown
3. Red
4. Yellow

Option “1” is correct
The members of Chlorophyceae are commonly called Green algae.The members of Chlorophyceae generally grow in fresh water (about 90%) and the rest in saline water, terrestrial habitat etc.
315. The body cavity which is lined by mesoderm is called __________.

1. Coelom
2. Chordata
3. Arthropoda
4. Platyhelminthes

Option “1” is correct
The coelom is the main body cavity in most animals lined by mesoderm and is positioned inside the body to surround and contain the digestive tract and other organs.
316. In females, the uterus is __________.

1. Single
2. Double
3. Triple
4. Four

Option “1” is correct
In females, the uterus is single.
317. Which of the following is not correct?

1. Members of Chlorophyceae are commonly called green algae
2. Members of Phaeophyceae are commonly called red algae
3. Members of Rhodophyceae are commonly called red algae
4. Members of Phaeophyceae are commonly called brown algae

Option “2” is correct
The members of Phaeophyceae are popularly called brown algae. Members of Chlorophyceae are commonly called green algae. The Rhodophyceae or the Red algae is probably the oldest groups of Eukaryotic Algae.
318. The process through which excess of light energy is dissipated in photosynthesis is known as –

1. Scavenging
2. Photolysis
3. Photophosphorylation
4. Non photochemical quenching

Option “4” is correct
Non-photochemical quenching (NPQ) is a mechanism employed by plants and algae to protect themselves from the adverse effects of high light intensity.
319. Excess amount of absorbed water by plants is liberated out by –

1. Evaporation
2. Osmosis
3. Diffusion
4. Transpiration

Option “4” is correct
Transpiration is the evaporation of water from plants. It occurs chiefly at the leaves while their stomata are open for the passage of CO2 and O2 during photosynthesis.
320. The basic structural and functional unit of living organisms is –

1. Cell
2. Tissue
3. Organ
4. Systems

Option “1” is correct
The cell is the basic structural, functional, and biological unit of all known living organisms. A cell is the smallest unit of life that can replicate independently, and cells are often called the “building blocks of life”. The study of cells is called cytology.
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