Biology Test 10...

Assertion: Hepatopancreas of prawn is equivalent to the liver and pancreas of higher animals.  , 
Reason: Hepatopancreas stores the absorbed nutrients from stomach and midgut.  , 

Read the assertion and reason carefully to mark the correct option out of the option given below :

A bryophyte suddenly started reproducing parthenogenetically. The number of chromosomes of the second generation compared to parent plant will be

When the sperms of Funaria and Pteris are put together near the archegonia of Pteris, only the sperms of Pteris readily enter the archegonia and reach the egg. The reason being that

Assertion: Skeleton helps in blood cell formation. , 
Reason: Blood flows through skeleton. , 

Read the assertion and reason carefully to mark the correct option out of the options given below:

Assertion: In hyperglycemia, the blood glucose level becomes increase. , 
Reason: Insulin secretion is elevated above the normal range

Pick out the correct statements , 

(i) Cytokinins especially help in delaying senescence  , 
(ii) Auxins are involved in regulating apical dominance  , 
(iii) Ethylene is especially useful in enhancing seed germination , 
(iv) Gibberellins are responsible for immature falling of leaves

Accessory gland associated with the genital organs in female rats are , 

(i) Vestibular bartholins  , 
(ii) Cowper's gland  , 
(iii) Ampullary gland  , 
(iv) Vesicular gland

One of the following plant species is in endangered list

Which of the following is expected to have the largest value (gm/m²yr) in a grassland ecosystem?