Cystic fibrosis, a disease that causes an accumulation of mucus in the lungs, results when a person is homozygous recessive for the autosomal trait (ff). if two parents who do not have cystic fibrosis give birth to a baby with cystic fibrosis, what are the parents’ genotypes? 1)ff, ff 2)ff, ff 3)ff, ff 4)ff, ff

Which strategy is an example of how companies may upgrade themselves to meet changing customer preferences? a. doing door-to-door sellingb. using billboards to advertise the productsc. making online shopping services availabled. giving discounts on products

Which of the following statements is most likely correct about a rock belonging to the jurassic age and a rock belonging to the cambrian age? options: 1) they have identical fossils of organisms that have evolved over time. 2) both have animal fossils preserved in them due to weathering and erosion. 3) they contain different fossils because life on earth has changed through time. 4) the fossils in them were formed on the surface of earth due to exposure to sunlight.

How do the evolutionary chart and the video support the claim that all living things are made up of cells?