Answer:
You may have heard that your heart skips a beat when you sneeze, but that's a myth. Electrical signals that control your heart rate aren't affected by the physiological changes that happen when you sneeze. But the heart may get delayed for a second or two before resuming its regular rhythm.
Answer: Bones cells secrete an extracellular matrix that when combined with minerals becomes rock hard.
Explanation:
Answer: crossing over
during the process of fertilization, a sperm and egg join together to create a zygote. since a sperm had half the number of chromosomes and an egg has half the number of chromosomes, when they join together the zygote had a complete diploid set of chromosomes. the assortment of chromosomes and crossing over promotes genetic variation during the process of reproduction
Beowulf waits for Grendel to attack heorot.
Beowulf sets out on his journey for daneland.
Beowulf succeeds in defeating Grendel by tearing his arm off.
Beowulf sets out for his geatish homeland.
Hrothgar welcomes Beowulf.
Beowulf sets out for his fight with dragon.
Beowulf fights with grendles wife.