1. Passage of a sperm through the corona radiata of the oocyte.
2. Penetration of the zona pellucida.
3.Fusion of the plasma cell membranes of the oocyte and sperm. after fusion the sperm head and tail enters the oocyte but plasma membrane of sperm doesn't.
4. Completion of the second meiotic division of the oocyte. this creates female pronucleus and polar body 2.
5. Formation of the male pronucleus (nucleus of sperm enlarges)
6. Breakdown of the pronuclear membranes and restoration of diploid number of chromosomes.
I believe it is DNA: deoxyribonucleic acid
Answer:
Many <u>human activities</u> like burning of fossil fuels, cutting of trees, application of nitrogen-based fertilizers, etc can have a major impact on the <u>nitrogen cycle</u>. These human activities and other activities can dramatically increase the amount of biologically available <u>nitrogen</u> in an <u>ecosystem</u>.
<em>Hope it helps</em>
<em>:D</em>
Hello.
The answer is
<span>electron transport chain
</span>
The stroma is equivalent to the cytosol, it is the aqueous fluid in between thykaloid grana, where carbohydrate formation reactions occur in the chloroplasts of plant cells.
The electron transport chain is found in the thylakoid membrane
Have a nice day
Answer:
As we get older the number of taste buds decreases.
Explanation:
Gustatory cells or the taste buds contains the different sensory cells on the tongue. The papillae consists of all the taste receptors. The sweet, bitter, salty, umami and sour tastes are recognized by the receptors.
The different individuals have different taste because of the presence of the different taste buds. The number of the taste buds decreases the individual gets older. The children has more taste buds and can easily understand the taste of different things. Hence, Joshua dislikes the broccoli taste.
Thus, the correct answer is option (a).
