C would be the correct answer.
A. theory because it is an explanation that is supported by extensive observations, experimentation, and reasoning.
Explanation:
Evolution can best be described as a theory because it is an explanation that is widely supported by extensive observations, experimentation and reasoning.
Theories are formulated after careful observation into a particular phenomenon.
- Most theories provides a vivid explanation into an observed event or process.
- The theory of evolution is one of such theories that suggests that an organism changes in order to adapt to its environment.
- Some of the key figures who contributed to the study of evolution are J. B Lamarck, Charles Darwin, Williams Smith e.t.c
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A scientific investigation...
Answer: 1:2:1
Explanation:
The genotypic ratio is 1:2:1 whereas, the phenotypic ratio is 3:1 in the monohybrid cross. 2. Dihybrid cross: It is simple defined as the cross between two pairs of contrasting characters or parental alleles. Pea shape and color are used to conduct the dihybrid cross test.
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https://www.chegg.com/learn/biology/introduction-to-biology/cross-between-two-pea-plants
https://www.albert.io/blog/dihybrid-cross-ap-biology-crash-course/#:~:text=A%20cross%20between%20two%20plants%20that%20are%20heterozygous,alleles%29%20parents%20this%20will%20always%20be%20the%20ratio.
The allele for black is B and the allele for white is B1. The heterozygous phenotype is known as erminette (black and white spotted). In shorthorncattle<span>, when a red </span>bull<span> (R R) is crossed with a white </span>cow<span> (R</span>1<span> R</span>1<span>), all the offspring are </span>roan<span>—a spotted, red and white or milky red color.</span>