Ai. What are ruminants? aii. Give two examples of ruminants.

bi. What is force?

bii. State four effects of forces on a body.

biii. Mention three sub-atomic particles.

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Which of the following is not am example of a polymer? protein nylon kevlar concreta

The focal length of a relaxed human eye is approximately 1.7 cm. when we focus our eyes on a close up object, we can change the refractive power of the eye by about 16 diopters. (a) does the refractive power of our eyes increase or decrease by 16 diopters when we focus closely? explain. (b) calculate the focal length of the eye when we focus closely.

Which body part transports oxygen removes waste materials in carries nutrients to the body as part of the circulatory system