<span>B. Stamen is the correct answer. It is the only part that
belongs to the male flower. Stamen has anther which is a saclike structure where
pollens are developed and filaments which act as the part of the flower which
transports the pollen. Flowers usually has the same petals as their number of
stamen. Various flowering plants have different types of stamen. Some are
attached to the petals and some are not. When female flowers receive the
pollens from the male flower’s stamen, the flowers reproduce.</span>
Answer:
(b) - A mnemonic device
Explanation:
A mnemonic device -
It is a technique used by a person to improve or faster the process of a learning .
This can be done by using some codes or tricks to make the concept or words easy and interesting , and can be easy learned .
hence ,
in the question , Luke used the mnemonic to learn the four bases of DNA quickly and efficiently .
14, add up protons and neutrons
Convection current is current which is caused due to the movement of group of molecules and also called difference in pressure and heat in earth
The convection current circulates in mantle when the earth spins whereas when the earth rotate it causes pull of matter in the mantle of earth.
As a result the earth rotation respond to mantle convection current where it travels.
hope it helps