Answer:
C. Outer Core
Explanation:
a good thing to remember is that the inner core is solid and the outer core is liquid
the constants are the type of food given to the fish.
Wavelengths is the possibly correct answer also it’s on study island
write it in your own words:
"In humans, five days after the fertilization, the blastocyst performs zona hatching; the zona pellucida degenerates and decomposes, to be replaced by the underlying layer of trophoblastic cells. The zona pellucida is essential for oocyte growth and fertilization."
The zona pellucida supports communication between oocytes and follicle cells during oogenesis; protects oocytes, eggs, and embryos during development, and regulates interactions between ovulated eggs and free-swimming sperm during and following fertilization.
