The cholesterol associated with membranes - is attached to proteins and extends into the environment surrounding the cell
- is an abnormality resulting from a diet high in cholesterol
- helps stabilize the membrane at body temperature
- both a and c

I’m doing some practice exam questions for biology, and i’m not sure how to do these 3 parts to the question.

1. emigration the movement of people from one place to another 2. immigration a situation in which resources are being used up at a faster rate than they can be replenished 3. migration the leaving of one's homeland to settle in a new place 4. overpopulation the movement of people to a new country 5. sustainable development a situation in which the birth rate is not sufficient to replace the existing population 6. underpopulation the ability to meet current needs without reducing the ability to meet future needs 7. unsustainable development the increase in the population of a city 8. urbanization a situation in which the number of people exceeds the available natural resources in an area

What is the term for the two sets of chromatids formed in the parent cell a.haploid b.diploid c.gamete d.tetrad