Evolution — BIOLOGY STD 12 Science — Question

Microbe used for biocontrol of pest butterfly caterpillars is

Persons with the following syndrome have a tendency of tall structure, mental defects and a strong antisocial behaviour

It is an antibiotic

If there was no CO2​ in the earth's atmosphere, the temperature of earth's surface would be:

Pyramid of energy in a forest ecosystem is:

In general, in the developmental history of a mammalian heart, it is observed that it passes through a two-chambered fish-like heart, three-chambered frog-like heart and finally to four-chambered stage. To which hypothesis can this above cited statement be hypothesis can this above cited statement be approximated?

The rupturing of graafian follicle and release of ovum is known as:

Experimental material in the study of DNA replication has been:

Being all mammals, whale, dolphins, bat, monkey and horse have some common characters but they also show conspicuous differences. This is due to phenomenon of