Traits included physical features such as flower color. Today, these factors are called <u>alleles</u>. Mendel developed the hypothesis that some factors could be dominant, while others were <u>recessive</u>. According to his theory, a dominant factor is expressed when <u>only one factor is presen</u>t in the offspring. On the other hand, a <u>recessive</u> factor expresses its <u>phenotype</u> when <u>both factors are present</u> in the offspring. Today, the term<u> genotype </u>refers to the combination of factors possessed by an organism.
- alleles
- recessive
- only one factor is present
- recessive
- phenotype
- both factors are present
- genotype
A) single loop
Fish have a two-chambered heart in which a single-loop circulatory pattern takes blood from the heart to the gills and then to the body.
"the process of hypothesis and testing through which scientific inquiry occurs"
Answer: Option C, D, E and A
Explanation:
Sympatric speciation is the evolution or isolation of new species from the original population of species occupying the same geographic area. It is also due to sexual selection of mates leading to reproductive barriers. A plant with extra set of homologous chromosomes is an example. Sympatric speciation is due to isolation of new species from the population of species who arise from common anscetor.
