Inroduced species often take over an ecosystem because they usually what?

Energy enters the food chain through

Describe one similarity and one difference between the functions of a three chambered heart and knows of a four chambered heart

Describe how mendel showed that the green-seed trait did not disappear but was only masked

For three autosomal dominant genes, what is the probability that a cross between two heterozygotes (i. e. AaBbCc x AaBbCc) will produce an offspring with the dominant trait for all genes?

Which organic compound serves this function? insulation against cold

Vertebrates are actually a subphylum of the Chordata phylum. True False

Which organelle in the plant cell makes glucose from sunlight?

The major cause of air pollution is: a. industrial waste b. sewage and pesticides c. car exhaust d. radioactive waste

What effect would there be on the final daughter cell if the spindle fibers failed to pull a chromosome toward the pole, as in case of non-Disjunction?

We summarize natural selection as "survival fittest". what factor "selects" the fittest organisms in natural selection?