In which of the following, purifying bacteria is present
Options
(a) Intestine (b) Colon (c) Stomach (d) Liver
Correct Answer:
Colon
Explanation:
The bacteria are found in the colon which infact are the […]
Haversian canals are found in
Options
(a) Spinal cord (b) Brain (c) Long bones (d) Sponge
Correct Answer:
Long bones
Explanation:
Haversian canals are present in long bones such as humerus, femur, tibia […]
Cartilaginous joints in humans
Options
(a) permits movement (b) permits little movement (c) permits no movement (d) All of these
Correct Answer:
permits little movement
Explanation:
Cartilaginous Joints-They are slightly moveable joints.Disc of […]
Aquatic reptiles are
Options
(a) Ammonotelic (b) Ureotelic over land (c) Ureotelic (d) Ureotelic in water
Correct Answer:
Ureotelic
Explanation:
Ureotelic animals include mainly amphibians and mammals besides its annelids (earthworm) elasmo branch […]
Water enters from soil into the root hairs due to
Options
(a) turgor pressure of root hair (b) osmotic pressure of root hair (c) suction pressure (d) diffusion pressure
Correct Answer:
suction pressure
The leaf of Mimosa on touching becomes flaccid and droops down. This is due to
Options
(a) water goes into pulvinus (b) water movement (c) based on water concentration (d) based on water […]
In plants, the induction of flowering, by low temperature treatment, is called
Options
(a) vernalisation (b) photoperiodism (c) pruning (d) cryobiology
Correct Answer:
vernalisation
Explanation:
Photoperiodism is the response of plants to the relative […]
In flowering plants, a mature male gametophyte is derived from a pollen mother cell by
Options
(a) two mitotic divisions (b) one meiotic and two mitotic divisions (c) three mitotic divisions (d) a […]
Rhodopsin is found in
Options
(a) rods only (b) whole of retina (c) cones only (d) ganglion cells
Correct Answer:
rods only
Explanation:
The rod cells of the retina contain the pigment rhodopsin […]
The progesterone is a hormone which is
Options
(a) a protein useful for morphogenisis (b) helpful in relaxing uterus during child birth (c) an enzyme helpful in growth (d) responsible for growth and […]
2017 Copyright Doctor Dreams Training Academy