Strategies for Enhancement in Food Reproduction — BIOLOGY STD 12 Science — Question

Give any two examples of xerarch succession.

The cross between the F, hybrid with a homozygous dominant individual, is called a test cross. True/ False

When does a human body elicit an anamnestic response?

What is it that prevents a child to suffer from a disease he/ she is vaccinated against? Give one reason.

Sometimes cattle or even human beings give birth to their young ones that have extremely different sets of organs like limbs/position of eye(s), etc. Why?

The theory of spontaneous generation was dismissed by whom and why?

Which fungus is responsible for ringworm? Write only one name.

Name two cattle diseases.

Name a plant in which dichogamy is found.

Write the name of 2 STDs which are transmitted through contaminated blood.