PLEASE HELP What are the types of symmetry?
1. endo- and ecto-
2. bilateral and radial
3. psuedo- and true
4. proto- and deutero-

Me with biology endocrine system crossword also image left i need with hw

What are the two causes of density in deep current waters? a. salinity (how much salt) of the water and high temperaturesb. salinity (how much salt) of the water and low temperatures c. oxygen content of the water and high temperatures. d. oxygen content of the water and low temperatures

Which is the function of the hypothalamus in thermoregulation? answers: -sensor -effector -stimulus -intergrating center it's either a or c i believe