Biology

Excretion in Paramecium sp. is by diffusion because?

A. its habitat is water and moist places B. it has simple, small and few internal organs C. it has…

6 years ago

In cellular respiration, energy is made available to organisms by?

A. removal of a phosphate group from ADR B. breaking off a phosphate group from ATP C. adding a phosphate…

6 years ago

The mechanism of opening and closing of stomata in plants is based on?

A. turgidity and diffusion B. turgidity and flaccidity C. osmosis and diffusion D. diffusion and flaccidity Correct Answer: Option B…

6 years ago

Which of the following characteristics do fungi share in common with animals?

A. Presence of digestive tract B. Movement from one place to another C. Storage of carbohydrates as glycogen D. Movement…

6 years ago

Which of the following processes involves diffusion?

A. Opening and closing of stomatal pores B. Turgidity of herbaceous plants C. Absorption of water through the root hairs…

6 years ago

Which of the following cell types has the least number of mitochondria?

A. Cardiac cells of the heart B. Cells of the cornified layer C. Muscle cells of the bladder D. Muscle…

6 years ago

The organelle which eliminates water from the body of a protozoan is the?

A. plasma membrane B. contractile vacuole C. nucleus D. cell wall Correct Answer: Option B B. contractile vacuole

6 years ago

An organism that operates at the cellular level of organization, carries out its physiological activities by using its?

A. cell membrane B. organelles C. small size D. cytoplasm Correct Answer: Option B B. organelles

6 years ago

Which if the following organisms is not classified as an animal?

A. Amoeba B. Paramecium C. Euglena D. Obelia Correct Answer: Option C C. Euglena

6 years ago

Adenine pairs with thymine because?

A. the two occur in the same nucleic acid B. one is a strong base and the other a weak…

6 years ago