Answer:
The head of the sperm contains the nucleus. The nucleus holds the DNA of the 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.
Explanation:
Answer:
yess oh my god i've been on here for like an hour instead of doing my history test
Explanation:
The value of over yourself affects you based on how you see yourself. if you see yourself in a bad way it will affect you in a worse way but if you see yourself in a good way will affect you in a better way. The same goes for when you value someone else
Answer:
Blood enters the heart through two large veins, the inferior and superior vena cava, emptying oxygen-poor blood from the body into the right atrium. The pulmonary vein empties oxygen-rich blood, from the lungs into the left atrium.
Explanation:
hope this helps...
and if u didn't get it its veins...
