Answer:
Birds, such as owls and eagles, have feathers and thin, hollow bones. Reptiles, such as snakes and lizards, have scaly skin and are ectothermic animals. Both possess a unique kind of egg called the amniotic egg.
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Newton's law of gravity helped to change the initial view that the Universe was supported by some mystical force or object.
<h3>What did Newton say held the Solar system together?</h3>
Newton's explanation that the Solar system was held together by the force of gravity helped to explain so many observation which were not explained before.
Newton's explanation that objects were attracted to one another by the force of gravity helped to change the view that the Universe was held together by some mystical or magical force or that the earth and other planets were supported on something.
Therefore, Newton's law of gravity helped to change the initial view that the Universe was supported by some mystical force or object.
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Answer: Mutation. The allelic variations that make evolution possible are generated by the process of mutation, but new mutations change gene frequencies very slowly, because mutation rates are low. Assume that the gene allele A1 mutates to allele A2 at a rate m per generation and that at a given time the frequency of A1 is p.
Explanation:
Answer:
Purple, spherical-shaped organisms arranged in chain like formations.
Explanation:
Bacteria are the microscopic organisms and included in the prokaryotes as they do not have nucleus. Two main types of bacteria are gram positive bacteria and gram negative bacteria.
The gram positive bacteria has thick cell wall peptidoglycan cell layer and can uptake the crystal voilet stain. These bacteria seems purple under the microscope due to the uptake of stain. The bacteria Streptococcus pyogenes are spherical in shape and occurs in the cluster of chain.
Thus, the correct answer is option (d).
