What type of cell division does the generative of a male angiosperm gametophyte cell undergo to produce sperm cells?.

the second type of galaxy is called a barred spiral, which has a thing called a bar straddling the nucleus

correct answer: understand the different control methods available

integrated pest management is an strategy that is based on the ecosystem and try to prevent the pest and the damage caused by them by applying combination of technique like habitat manipulation, biological control and use of resistant varieties.

the main aim of the integrated pest management is not to completely eliminate the pest but to strengthen the ecosystem so that conditions are favorable for plants and unfavorable for pests.

all matter is made up of atoms

in any element all atoms are the same

elements in a compound are always in a constant ratio: apex