What information do chromosomes contain?

Ashort, vertical, solid, or fleshy stem possessed by gladiolus and which is used in reproduction is termed a

What are the student's observations and inferences before he starts his investigation?

Which member of the following food chain will be least affected by ddt, a pesticide water pollutant, if bio-magnification is occurring? algae> zooplankton> crayfish> leopard frog> large mouth bass