Answer:
Nucleus ;
Explanation;
The head of a sperm contains nucleus that holds the DNA of the cell which is the genetic material in the sperm cell.
The head also contains enzymes that help the sperm break through the cell membrane of an egg.
The midpiece of the sperm is packed with mitochondria. Mitochondria are organelles in cells that produce energy.
Answer:
The carboxyl group, the amino group, and the central carbon
Explanation:
<span>The correct option is C. Erosion is the process by which the earth surface get worn down. It involves the removal of soil, rocks or dissolved material from one location and its transportation to another location. Erosion can be caused by water, wind and glacier.</span>
Imena shoul tell her brother a fire is not a living thing , but if somethings alive it should grown and develop , reproduce and produce off springs .
<span>Smell often trigger vivid memory<span>. This is because of the anatomy of the olfactory pathway. The nasal mucosa senses odorant molecules wherein the olfactory nerve will transduce the signal to the olfactory bulb to the olfactory cortex, bypassing the thalamus (unlike other senses) Anatomically and physiologically, the olfactory cortex is closely related to the amygdala which is associated with memory formation.
</span><span><em>Primary example is that a certain smell of a perfume of your ex-lover can trigger vivid memories even if it was many years ago.</em></span></span>