Which of the following character is not present in all arthropods?
Options
(a) haemocoel (b) true coelom (c) malpighian body (d) exoskeleton
Correct Answer:
malpighian body
Explanation:
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Night blindness is caused due to the deficiency of
Options
(a) vitamin K (b) vitamin B (c) vitamin E (d) vitamin A
Correct Answer:
vitamin A
Explanation:
Peyer’s patches are the aggregation of […]
The abundance of a species population, within its habitat is called
Options
(a) relative density (b) niche density (c) absolute density (d) regional density
Correct Answer:
niche density
Explanation:
No explanation available. Be […]
The ultimate source of variation is
Options
(a) natural selection (b) mutation (c) sexual reproduction (d) hormonal effects
Correct Answer:
mutation
Explanation:
No explanation available. Be the first to write the explanation for […]
Nerve impulse initiates with the movements of
Options
(a) Ca⁺⁺ (b) K⁺ (c) Mg⁺⁺ (d) Na⁺
Correct Answer:
Na⁺
Explanation:
No explanation available. Be the first to write the explanation for this question […]
The lateral roots originate from
Options
(a) pericycle (b) exodermis (c) vascular bundles (d) endodermis
Correct Answer:
pericycle
Explanation:
No explanation available. Be the first to write the explanation for this question by […]
An angiospermic plant has 24 chromosomes in microspore mother cell. The number of chromosomes in its endosperm will be
Options
(a) 36 (b) 12 (c) 48 (d) 24
Correct Answer:
36
Explanation:
No […]
The lower jaw of a mammal is made up of
Options
(a) premaxilla (b) dentary (c) post maxilla (d) maxilla
Correct Answer:
dentary
Explanation:
No explanation available. Be the first to write the […]
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