The adaptations of organisms in a specific ecosystem are clues of evolution. for example, a giraffe has a long neck to reach leaves of high trees, birds migrate when cold weather comes etc
Answer:
Scientists usually use the potassium-argon method to date rocks that are older than about 1 million years. Uranium-238 is also used for radiometric dating. It has a half-life of 4.5 billion years. It decays to produce lead-206.
The genotype would be X'Y for the father (he would be colorblind)
The genotype would be X'X for the mother (she would be a carrier)
The offspring would be X'X' _ X'X_ X'Y_ XY
The ratio would be 1:1 normal to colorblind
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Answer:
The fish is sick or its cold or people have C O V I D
Explanation:
Chromosomes condense during prophase
