1) The ………………………… has colorful poisonous skin to protect itself from predators. a) lizard b) African penguin c) arctic fox d) dart frog 2) Poison frog lives in …………………………………. a) desert environment b) arctic environment c) tropical rainforest d) oceans 3) Polar bears have …………………………… to help them live in cold climate. a) Thick fur b) Thin fur c) sandy-colored fur d) poisonous skin 4) The trait that helps emperor penguin to keep its body warm, is ………………………….. a) presence of thin fatty layer b) presence of thick fatty layer c) absence of feathers around its eye d) absence of feathers around its body 5) Sunlight is a/an ……………………………. factor in an ecosystem. a) biotic b) abiotic c) genetic d) all are correct 6) Plant growth is affected by …………………………………. a) intensity of light b) duration of light c) length of day d) all are correct 7) All the following are biotic factors except ……………………………. a) animals b) rain c) insects d) grass 8) Sphynx cats and Birman cats differ in ……………………………. a) number of ears b) number of legs c) number of eyes d) length of hair 9) ……………………………… are responsible for determining the body features as the color of eyes. a) Behaviors b) Lifestyles c) Genetic factors d) Environmental factors 10) Clean water is an example of …………………………….. a) lifestyle choices b) environmental factors c) genetic factors d) inherited traits 11) Increasing the number of different animals species is affected by ……………………………… a) the body size of animals b) the length of plants c) the body color of animals d) the size of habitat 12) Which of the following is a bad habit in humans?............................ a) Eating healthy food b) Doing exercise c) Avoiding smoking d) Drinking soda

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