20 ! more than one

why are invasive species considered a threat to native wildlife?

they can breed and spread quickly.
they consume native species’ food supply.
they evolve, and native species don’t.
they all have higher genetic diversity than native species.
they don’t need resources from the environment as native species do.

Are the layers of rock above and below the coal older or younger?

Before classifying insects into different orders,review the larger classification for insects: • kingdom: animalia • phylum : arthropoda • class : insecta conduct research online to determine the characteristics an organism must have to be classified in each of the taxonomy levels shown. note the characteristics you find in the answer space.

Ts assignment - snow day assignment genetic variation and natural selection natural selection relies on genetic variation. in any population of beetles, there are alleles for brown or green color. what happens to the genotype and the phenotype of the beetle population when there are distinct advantages and disadvantages due to color? order the steps that take place during natural selection in this beetle population.