Osteoporosis is a thinning of the bones that makes them prone to fracture. We often hear of old women who fall and break their hip. More often, their hip breaks causing a fall. What do you think is causing osteoporosis? Is it a lack of collagen or a lack of calcium phosphate? Why?

My question says on my assignment. read the following scenarios and decide which of the properties of life are being described. the first one is. katherine stopped on the way to school to grab some donuts. 2. because a dog cannot sweat, it has to pant in order to stay cool. 3. an elephant trun had no bone but 4,000 muscles. i have no idea what i am supposed to anwer. i can't find the answer in my notes or book that i can understand anyway

25. what does meiosis create? haploids or diploid? somatic cells or gametes?

Afamily has a y-linked disease that affects the father. what is the chance of a male offspring inheriting the same disease? oa. 100% ob. 50% oc. 25% d. 0%