Cystic fibrosis, which is usually lethal before reproductive ages, is a homozygous recessive disease. why do cases continue to arise, even though people with the disease rarely live to reproduce?

Match the types of competition to their descriptions

Imagine that certain laws of physics could be ignored and you were able to travel vast distances in moments. now imagine that you traveled to an earth-like planet located light-years away that is known to support life. think about what you’ve learned in this unit and make an argument for what you think would be the dominant type of life form on this planet. consider whether a notochord is required for an organism to manipulate its environment and become a dominant creature.

Eutrophication caused by human nutrient pollution.