The _ system consists of the hypothalamus, pituitary, amygdala and hippocampus. They are located in the brain just under the cerebrum.
A) endocrine
B) limbic
C) nervous
D) skeletal

Biology ! the conversion of inorganic carbon to organic carbon by plants during photosynthesis is known as _[blank]_. filtration immigration reabsorption primary production

18. which statement about cancer is true?

Which spheres are involved when sedimentary rocks formed from parts of seashells at the bottom of the ocean? a.) biosphere, atmosphere, geosphereb.) geosphere, hydrosphere, biosphere c.) geosphere, exosphere, hydrosphered.) hydrosphere, biosphere, atmosphere