Answer:
B
Explanation:
The law of superposition states that rock strata (layers) farthest from the ground surface are the oldest (formed first)
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Answer:
D
Explanation:
This is a typical monohybrid cross involving a single gene coding for seed shape in a plant. The allele for round seeds (R) is dominant over the allele for oval seeds (r) i.e. the round shape will mask the expression of the oval shape in a heterozygous state (Rr).
Hence, in a cross between two heterozygous parents (Rr), alleles on chromosomes will randomly separate into gametes according to Mendel's law of segregation to produce gametes with R and r allele each. When these alleles from male and female parent combine, four offsprings with RR, Rr, Rr and rr genotypes will be produced.
RR, Rr and Rr genotypes will be phenotypically round-seeded while rr will be phenotypically oval-seeded. Therefore, 3/4 × 100 = 75% of the offsprings will be round-seeded.
Answer: As it goes down in the food chain, and as the energy is passed, only 10% is kept as energy- the rest is lost as heat.
Explanation:
I’m going to say *True* if you agree I must be right!
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Answer:
Synthesized information from diverse scientific fields in order to document evolutionary change.
Explanation:
Charles Darwin's book catalogued species and organisms from around the world. He was also able to make information, based on actions performed by animals, and document how they evolved and changed over time.