(Q).
You are presented with the question "What can be used for hydration?" and the following answer choices: - tree bark - leaf - fur and fat - Heat energy - Calcium carbonate - tree branch - mussels - a cactus stem Now knowing that acactus stem is used for storing water and drink lots of water for hydration, choose the best answer.
(A).
a cactus stem

(Q).
You are presented with the question "Habitats where fish live in large quantities are usually larger than what?" and the following answer choices: - an object - Inches - crocodiles - body water - Decibels - Weight - streams - Length Now knowing that rivers are usually larger than streams and fish is available in the rivers and lakes of the district in large quantities, choose the best answer.
(A).
streams

(Q).
You are presented with the question "What is TSH regulated by?" and the following answer choices: - pituitary - sweating - animals - glucose - heat or cold - heat produced - temperature - organ Now knowing that tRH stimulates the pituitary gland to produce thyroid-stimulating hormone, or TSH and tRH synthesis is regulated directly by thyroid hormones, choose the best answer.
(A).
pituitary