Biology Questions

___________ being a higher category, is the assemblage of families which exhibit a few similar characters.

Which type of permanent tissue helps the aquatic plants to float?

The smallest blood vessels which are one-cell thick, are called ______

Which of the following is not among the 3 main classes of Algae?

Among plants, three different genera Solanum, Petunia and Datura are placed in which family?

Path a secretory protein follows from synthesis to secretion :

Molecular clocks are based on the idea that _____.

In animals like Annelids, Molluscs, organs have associated to form functional systems, each system concerned with a specific physiological function. This pattern is called ________ system level of organization.