Body Fluids and Circulation — BIOLOGY STD 11 Science — Question

How is the shape of red blood cells in humans?

How would non-secretion of saliva affect the digestion of food in the mouth?

Which type of venation is found in the leaf of a dicot plant?

Name the first group of land/ terrestrial plants that possess vascular tissues.

Name two groups of animals where exchange of gases occurs by diffusion across their entire body surface.

Where are seeds located in gymnosperm?

While eating watermelons, all of us wish it was seedless. As a plant physiologist can you suggest any method by which this can be achieved.

Mark the odd one in the following group. Kranz anatomy, oxaloacetic acid, phosphoel pyruvate, photorespiration.

Fill in the blanks:

Hormones	Target gland
Thyrotrophin (TSH)	__________________.

"Viruses viruses could be crystallised." Whose statement is this?