Membrane phospholipids are arranged in a bilayer with hydrophilic heads on the outside and hydrophobic tails in the middle. What is the advantage of this
arrangement?
A.) the phospholipid heads can interact with water inside and outside the cell

B.) the phospholipid heads repeal water inside and outside the cell

C.) the bilayer will not let any materials pass through it

D. the bilayer forms a non- permeable barrier

Which statement explains how gravity and intertia work together

Grade 91.)the gravitational pull from the moon words).2.) what is the rate of gravitational 3.)if you drop a hammer, is it more likely to drop handle side down, head side down, or equal chance that it will land either way? why? 4.)a car moves 60km east and 90km west.a.) what is the distance the car traveled? b.) what is the car's displacement5.)what is the average velocity of a car that moved 60 km south in 3 hours? 6.) a car starts from rest and acceleration to 60 m/s over a time of 5 seconds. what is the acceleration of the car? 7.)what is the speed of an object at rest?

4. multiple crosses were made between true-breeding lines of black and yellow labrador retrievers. all the f1 progeny were black. when these progeny were intercrossed, they produced an f2 consisting of 91 black, 39 yellow and 30 chocolate. a. propose an explanation for the inheritance of coat color in labradors. b. propose a biochemical pathway for coat color determination and indicate how the relevant genes control coat coloration.