MCQ
Sensory structures in Ascaris are:
- APhasmids
- BAmphids
- CPapillae
- ✓All of the above
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Reason : Trace evidences such as hairs, saliva and dried semen are adequate for $DNA$ analysis.
$II.$ Allen's rule is explain mammals living in colder climates
$III.$ Altitude sickness is caused because of body not getting enough oxygen due to low atmospheric pressure at high altitude
$IV.$ Desert lizards lack behavioural means to manage to their body temperature
Choose the correct option for above adaptations
$R$- The microspores are arranged in a cluster of four cells - the microscopic tetrad.