HELP PLEASE! WILL GIVE Describes a weak, electromagnetic bond between polar molecules. A. Adhesion b. Hydrogen bond. C. Polar covalent bond. D. Ionic bond

Living cells cannot use heat to provide the activation energy for biochemical reactions because which choice(s) complete the sentence correctly? a) answer choice ii. eliminate b) answer choices ii and iv. c) answer choice iii and iv. d) all answers can complete the sentence.

Which of the following does not describe a physical property of iron? a iron is silvery-white or gray in color. b iron has a boiling point of about 3,000°c. c iron is a magnetic element . d iron and sulfur react to form iron sulfide.

Acquired mutations can result from radiation pollution toxins inheritence select all that apply