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?

How can you keep track of variables in a science experiment?

Did you know that a blue wales tongue weighs more than an elephant?

The us council on environmental quality, the world wildlife fund of the united states, the ecological society of america, the smithsonian institution, and the international union for the conservation of nature have proposed four principles of wildlife conservation. which of the following does not apply to wildlife conservation? a) continuous monitoring, analysis, and assessment b) ecosystem maintenance that includes wildlife c) a plan encompassing entire communities of organisms and all renewable resources d) a continued interest in harvesting populations for sport