4. how does a cell membrane retain its shape?
a. the forces of polar molecules pushing on one another
b. the force of water molecules pushing on the lipids of the bilayer
c. the attractive forces of the lipid tails
d. the repellant forces between the heads and tails of the bilayer
5. what molecules are embedded within a cell membrane that allow needed materials to pass through?
a. dna
b. rna
c. proteins
d. carbohydrates

15 points come and ! in which environment is someone least likely to find fungi growing? a around the sides of a hot tub b on a log in a tropical forest c beneath a mat in a shower d under a rock in the desert

Which of the following is the main purpose of a human community?

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