Why are invasive species potentially dangerous? They can introduce foreign diseases and parasites
They decrease the number of predators in a food chain
They decrease competition for resources.
They increase the biodiversity in a population

In natural selection, what is actually “selected? ” a) alleles are directly selected b) genotypes are directly selected c) phenotypes are directly selected d) entire populations are directly selected

Which phase of the cell cycle ensures that identical copies of the dna are made for daughter cells?

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.