EVERYDAY SCIENCE

Detailed explanation-1: -Pinus is a monoecious gymnosperm.

Detailed explanation-2: -Pinus reproduces through sporophytic generation and is a monoecious plant. Despite the fact that the microsporophyll (male) and megasporophyll (female) are generated on the same plant, they are found in separate cones or strobilli.

Detailed explanation-3: -Hence, the correct answer is ‘Pinus’

Detailed explanation-4: -Monoecious plants have both male and female reproductive parts in the same plant. E.g. cucurbits and coconuts. Monoecious plants produce both male and female gametes. The male part is called androecium, which consists of stamens and the female part is called gynoecium, which consists of the pistil.

Detailed explanation-5: -Pinus is monoecious as it bears both type of cones on the same tree on separate branches. The male cone consists of a number of small spirally arranged micrisporangia or pollen sacs as swelling on the lower suface of its horizontal position .