General Biology Question

The human heart is ...

• Neurogenic heart

• Myogenic heart

• Pulsating heart

• Ampullary heart

Spermology is the study of ...

• Seed

• Leaf

• Fruit

• Pollen grain

Animal without red blood cells ...

• Frog

• Earthworm

• Snake

• Peacock

Chambered heart occurs in ...

• Leech

• Earthworm

• Snail

• Cockroach

The phenomenon of summer sleep by animals is called ...

• Hibernation

• aestivation

• laziness

• lethargy

The corner of the cells of collenchyma tissue in plant are thickened due to deposition of ...

• Lignin and suberin

• Suberin and cutin

• Cellulose and pectin

• Chitin and lignin

The energy released by 1 gram of glucose is ...

• 6 kcal

• 5 kcal

• 4 kcal

• 3 kcal

The enzyme that is necessary to bring about clotting of blood is ...

• peptidase

• amylase

• lipase

• thrombokinaae

During rainy season wooden doors are difficult to open or closure because of  ?

• Imbibition

• Plasmolysis

• Diffusion

• Osmosis

The rate of heartbeat is accelerated by the hormone ...

• Adrenaline

• acetylcholine

• thyroxine

• pituitrin