Draw the diagram showing the germination of pollen on stigma and label the following parts (i) Stigma (ii) Pollen tube…
Browsing: biology
Describe the internal structure of the leaflet of cycas and list out the xerophytic adaptations seen in it. Hint: The…
Prepare a chart giving detailed information at the carbon compound every day wise. Hint: As we know, carbon is a…
There are two sets of chromosomes in a zygote. A. True B. False Hint: A zygote is a eukaryotic cell…
Mother is responsible for the sex of the baby (a) True (b) False Hint: In humans, the female ovum contains…
Genotypic ratio of a dihybrid cross is A. 12:3:1 B. 15:1 C. 1:2:1 D. 1:2:2:4:1:2:1:2:1 Hint: Genotype refers to the…
Give five points to show the significance of variation? Hint: Variations involve changes in the genetic makeup of a population…
The term ecosystem was coined by? (a) E.P. Odum. (b) A.G Tansley. (c) E. Haeckel. (d) E. Warming. Hint: The…
Energy flow in an ecosystem is (A) Unidirectional (B) Bidirectional (C) Multi directional (D) All of the above Hint: Energy…
Correct percentage of carbon dioxide present in the atmosphere is A. 0.03% B. 0.3% C. 1% D. 1.1% Hint: Carbon…