Answer:
False
Explanation:
Approximately 200 out of 200 million sperms ejaculated during intercourse reach the general vicinity of the egg. They sperms must undergo capacitation during which dilute inhibitory factors fluids of the female reproductive tract weaken the membrane of the sperm head so that head of the sperm can be broken easily when it came in contact with the egg.
The first sperm to reach an egg isn’t the one to fertilize it because the egg is surrounded by a gelatinous membrane called the zona pellucida. Outside this layer, a layer of small granulosa cells also present.
Therefore, it requires numerous sperm to clear a path through these barriers before one of them can penetrate the egg and fertilize it.
Answer:
Density = mass/volume = 57g/4.2 mL ≈ 13.6 g/mL
Explanation:
Mass = 57 g Volume = 4.2 mL
The density of mercury is ⇒ 13.6 g/cm3.
Trust me I got it wrong and it gave me this. I just did the instruction.
Answer:
3
Explanation:
Daily Recomendation
Children
2-3 years old ---2 cups
4-8 years old ---2½ cups
Girls
9-13 years old ---3 cups
14-18 years old ---3 cups
Boys
9-13 years old ---3 cups
14-18 years old ---3 cups
Women
19-30 years ---3 cups
31-50 years old ---3 cups
51+ years old ---3 cups
Men
19-30 years old ---3 cups
31-50 years old ---3 cups
51+ old years old ---3 cups
Cup Equivalents for Milk and Milk Products:
1 cup of milk, yogurt, or soymilk— gives 1 cup equivalent
1.5 ounces of natural cheese— gives 1 cup equivalent
2 ounces of processed cheese— gives 1 cup equivalent
Answer: The desert animals do not get appreciable amount of water quantity to survive on daily basis instead their body mechanism tries to conserve water by concentrating urine.
Explanation:
The desert mammal like kangaroo rat produces hyper concentrated urine so as to conserve water. It is facilitated by extremely long loop of Henle in their nephron. The long loop of Henle increases the time and space for absorption of water and nutrients from the urine filtrate. Hence, urine so produced is more concentrate and conserve water. Moreover, the kangaroo rat consume their urine to survive in extreme hot desert condition in scarcity of water.
