STD 12 - 1. sexual reproduction in flowering plants — Biology STD 12 Science — Question

If more than one code designates the single amino acid it is:

Sensitivity to any allergen is related to

Which of the following statements, support the view that elaborate sexual reproductive process appeared much later in the organic evolution,

1. Lower groups of organisms have simpler body design.
2. Asexual reproduction is common in lower groups.
3. Asexual reproduction is common in higher groups of organisms.
4. The high incidence of sexual reproduction in angiosperms and vertebrates.

Choose the correct answer from the options given below:

The testes of a great majority of mammals are typically enclosed in an extra abdominal sac, the scrotum. The temperature inside the scrotum is lower than that in the abdomen. What will happen if the temperature of the scrotum is artificially maintained to the level of abdominal temperature

Typhoid fever is caused by:

The phosphorus cycle differs from those of carbon and nitrogen as well as those of sulphur, oxygen and hydrogen in that it lacks:

Blastopore is.

Persistent nucellus in the seed is known as

Sex determination of foetus is banned because it leads to: