You are presented with the question "What animal uses gills to breathe?" and the following answer choices: - Shark - Platypus - salmon - trout - Whale - mussels - Crow - a fish Now knowing that breathing is when a gill converts from oxygen in water into oxygen in blood and sharks breathe under water, choose the best answer.
Shark
(Question)
You are presented with the question "Which are muscles?" and the following answer choices: - to move people - quadriceps - mechanical - critical organs - bones - heat or cold - joints - tendons Now knowing that muscles can only contract and quadriceps contractions and leg raises are begun immediately, choose the best answer.
(Answer)
quadriceps
Ques: You are presented with the question "What have a complete digestive system and a closed circulatory system?" and the following answer choices: - viruses - reptiles - phytoplankton - mammals - bacteria - graptolites - humans - elephants Now knowing that chordates have a complete digestive system and a closed circulatory system and because reptiles are vertebrates, they are chordates, choose the best answer.
Ans: reptiles
(Q).
You are presented with the question "An animal panting has decreased what?" and the following answer choices: - Quality of life - motility - common sense - life span - burnout - Heart rate - Temperature - body water Now knowing that if an animal sweats then that animal 's bodily water decreases and some animals sweat, some pant, some lick, choose the best answer.
(A).
body water
Ques:You are presented with the question "What are organelles involved in mitosis?" and the following answer choices: - animals - Conifers - Most plants - it needs them - graptolites - fur seals - centrioles - sensory neurons Now knowing that centrioles are organelles involved in cell division and mitosis is cell division, choose the best answer.

Ans:centrioles
Ques: You are presented with the question "What causes objects to be pulled down on a celestial body?" and the following answer choices: - power - friction - black hole - wind - gravity - orbit - earth - eclipse Now knowing that gravity causes objects that have mass to be pulled down on a planet and astronomy is the scientific study of the stars, planets and the other celestial bodies, choose the best answer.
Ans:
gravity