Differentiate between the following:
(a) Binary fission in amoeba and multiple fission in Plasmodium
(b) Budding in yeast and budding in Hydra
(c) Regeneration in lizard and Planaria

What is the difference between syngamy and fertilization?

Explain the role of oxytocin and relaxin in parturition and lactation.

The following is the illustration of the sequence of ovarian events (a-i) in a human female.

a) Identify the figure that illustrates ovulation and mention the stage of oogenesis it represents.
b) Name the ovarian hormone and the pituitary hormone that have caused the above-mentioned events.
c) Explain the changes that occurs in the uterus simultaneously in anticipation.
d) Write the difference between C and H.

Write the preventive measures of STDs.

Amniocentesis, the foetal sex determination test, is banned in our country, Is it necessary? Comment.

Explain the mode of sex determination in honeybees.

What are the applications of Karyotyping?

What is extra chromosomal inheritance? 

Explain the formation of a nucleosome.

How does Neanderthal man differ from the modern man in appearance?

List the causative agent, mode of transmission and symptoms for Diptheria and Typhoid.

(i) Write the scientific name of the filarial worm that causes filariasis.
(ii) Write the symptoms of filariasis.
(iii) How is this disease transmitted?

List the advantages of biogas plants in rural areas.

Mention the advantages (3) and disadvantages of cloning (3).

Differentiate between Tundra and Taiga Biomes.

Describe Population Age Distribution

Alien species invasion is a threat to endemic species – substantiate this statement.

What is mass extinction? Will you encounter one such extinction in the near future. Enumerate the steps to be taken to prevent it.

List out the various causes for biodiversity losses

‘Stability of a community depends upon its species diversity’ Justify the statement.

How does recycling help reduce pollution?

In what way Peyang conserves the forest?

What are some solutions to toxic dumping in our oceans?