In children, lymphatic tissues such as adenoids, tonsils, and lymph nodes enlarge as growth continues and from exposure to microorganisms.

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.

Hurry where is the majority of earth's water found? o glaciers o oceans ground o rivers and lakes

How do all types of diffusion/passive transport actually ‘work’ without using even the smallest amount of cellular energy?