The cell membrane is semi-permeable, kind of like a filter to let some molecules in and keep larger molecules out
Explanation:
Oogenesis refers to the process of the formation of ovum cells from the oocyte. The oogenesis process involves the fusion of meiosis I and meiosis II. The oogenesis process begins even before the birth of a girl but is halted after meiosis I. The meiosis II forms the one functional ovum cell and one polar body.
This formation of unequal division is due to the reason that the polar body has to be degenerate while the ovum cell when formed will require the nutrition for the zygote as a result of which the receive more cytoplasm and organelles.
Muscle contraction that results in a change in joint angle is called <span>concentric contraction.
This contraction occurs when enough force that can overcome the resistance applied is developed by the muscle where this force developed is larger than the force of the resistance applied.</span>
Answer : I believe the answer is D.
1. Multicellular Organisms have different types of cells that make them up while Unicellular Organisms only have one type of cell in their body.