Presence Of Hind Helps Us Tide Over Worst Hurdles.

Assertion : Presence of zona pallucida over the fertilized ovum prevents ectopic pregnancy . Reason : Zona pellucida helps the ovum to penetrate endometrium .

Assertion : Presence of zona pallucida over the fertilized ovum prevents ectopic pregnancy . Reason : Zona pellucida helps the ovum to penetrate endometrium .

In higher plants, which structure serve as means to tide over period of stress and also helping in dispersal

In a hurdle race, Nidhi is over hurdle B and 2/6 of the way through the race, as shown in Fig. 2.7. Then, answer the following: (a) Where will Nidhi be, when she is 4/6 of the way through the race? (b) Where will Nidhi be when she is 5/6 of the way through the race? (c) Give two fractions to tell what part of the race Nidhi has finished when she is over hurdle C.

Presence of an allele that can help an organism under changed conditions is called

Presence of an allele that can help an organism under changed conditions is called

Presence of carotenes in chloroplast helps in

Stems that spread to new niches but do not help to tide over the unfavourable conditions of growth i.e., perennation is found in