You are presented with the question "What does natural selection do to organisms?" and the following answer choices: - move to different locations - Damages them - protect them - Creates them - Softens them - competing for resources - Helps them survive - Destroy them Now knowing that evolution occurs by a process called natural selection and evolution is about electing to survive, choose the best answer.
Helps them survive
(Question)
You are presented with the question "some what lack respiratory systems?" and the following answer choices: - Smoking - respiratory systems - deuterostomes - cigarettes - alpacas - hawks - barnacles - pigs Now knowing that echinoderms lack respiratory and excretory systems and all echinoderms are deuterostomes , choose the best answer.
(Answer)
deuterostomes
Ques: You are presented with the question "What does a mirror reflect?" and the following answer choices: - body water - watershred - biceps - motion - sunlight - coastlines - movement - sun's heat Now knowing that amirror is used for reflecting light and sunlight is white light, choose the best answer.
Ans: sunlight
(Q).
You are presented with the question "What occurs when many muscles contract a little bit all at once?" and the following answer choices: - the production of cells - preventing heat transfer - To keep their body heat. - the production of heat - Generating heat - recovery time from fatigue - the production of cold - the production of skin Now knowing that shivering occurs when many muscles contract a little bit all at once and involuntary contractions, shivering, cause the production of heat, choose the best answer.
(A).
the production of heat
Ques:You are presented with the question "zinc has a positive impact after what" and the following answer choices: - surgery - leukemia - Cooking - cycles - cancer - disease - exercise - the skin Now knowing that zinc has a positive impact on the healing of wounds and wound healing Wound healing is a critical aspect of surgery, choose the best answer.

Ans:surgery
You are presented with the question "Vibrations in air can be used for what by animals?" and the following answer choices: - activation energy - communication - Something to move - sleeping - sustenance - Heart rate - food and shelter - tasting Now knowing that sound can be used for communication by animals and sounds are vibrations in air, choose the best answer.
communication