An example would be acid rain because acid is a chemical.
Answer: True
Explanation: The only hints of the former hind limbs are the vestiges of a pelvis and femur embedded in the body wall. One in 100,000 whales is estimated to have a slightly protruding stub of a hind limb.
Answer: PART A: c. Gender
PART B : exercise diet
Explanation:
<span>Gram-negative bacteria have a cell wall that is <u>thin</u> and does not accept the stain, making it appear <u>red or pink</u><u />.
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</u>Gram staining is used for differentiation gram-positive from gram-negative bacteria based on the characteristic of their cell wall. Gram-negative bacteria have a thinner cell wall than gram-positive bacteria. In this staining, bacteria are first stained with crystal violet dye. Only gram-positive bacteria will be violet colored because they can retain the dye thanks to their cell wall. The second staining with fuchsine or safranin will give the red or pink color to the gram-negative bacteria. <u>
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The naturalist process involved in rolling over, crawling and walking would probably be part of the maturation process of mammals like man when they are infants and involve a progression in that order in learning how to stand up and walk upright eventually and in man it usually takes about one year for the walking to take place.
