Ques: You are presented with the question "What undergoes a movement that changes population size?" and the following answer choices: - Wasps - camels - sheep - insects - animals - sharks - birds - ducks Now knowing that migration is a type of movement that changes population size and bird Migration and Isotopes Tracking animal migration is a difficult task, choose the best answer.
Ans: birds

Ques: You are presented with the question "what helps make up the excretory system?" and the following answer choices: - sugar - gills - h2o - lungs - aorta - bowel - fungi - honey Now knowing that organs of excretion make up the excretory system and excess estrogen is excreted in the bowel, choose the best answer.
Ans: bowel

Ques: You are presented with the question "how do foxes warm up?" and the following answer choices: - ligt - coat - fur - skin - two - water - fats - air Now knowing that thick fur can be used for keeping warm and if Arctic foxes are in too cool weather, they warm up by their thick fur, choose the best answer.
Ans: fur

Ques: You are presented with the question "What happens when muscles around the prostate gland contracts?" and the following answer choices: - preventing heat transfer - The bending of a ray of light - Generating heat - Warm air moving into cold air - Sperm leaves the epidiymes - heat produced - Release energy - rapid expansion Now knowing that ejaculation occurs when muscle contractions propel sperm from the epididymes and an ejaculation occurs as the muscles around the prostate gland and the penis contract, choose the best answer.
Ans:
Sperm leaves the epidiymes