STD 11 - 4. Animal kingdom — BIOLOGY STD 11 Science — Question

In rainy season, the doors get wet due to:

On an average, healthy human breathes …… times / minutes.

The phylum which was earlier considered as a sub-phylum under chordata but now placed as a separate phylum, in non-chordates is

What does lymph do?

The graph given below shows the effect of potassium cyanide on the rate of photosynthesis of Chlorella at different light intensities. Which one of the following can be deduced from the graph

Alkaptonuria is a disease where the urine is:

Number of chromatids at metaphase is:

A dental disease characterised by moltting of teeth is due to the presence of a certain chemical element in drinking water. Which of the following is that element?

Which one of these is viviparous?

That part of the brain which is involved in interpreting an input, storing input information and initiating a response in the light of similar past experience is