In DNA adenine levels were equal to thymine levels and cytosine levels were equal to guanine levels.

What system is made up of the nose, pharynx, trachea, lungs, bronchi, and alveoli. circulatory endocrine immune respiratory

When earthworms bring fine rock particles to the surface what type of weathering is that?

Which of the following statements shows an example of operant conditioning? A.) A chicken learns that if it pecks on a button, a food pellet will be released into its cage. B.) Pavlov taught a dog to salivate every time it heard a bell. C.

If you were to use an adult cell's nucleus with intact DNA from a Tasmanian tiger to replace the nucleus of a Tasmanian devil's egg cell and make it produce to a new organism in a surrogate Tasmanian devils womb, what kind of organism will it make?

Where would the origin of endothermy map on the phylogeny?

Which of Jupiter's moons is volcanically active? Io Ganymede Europa Callisto

Risk assessment depends on

DNA is genetic material that makes up living things, and folic acid plays an important role in the formation of DNA. Jon wants to study the effect of folic acid on DNA formation in microbes.

Your alien friend from planet Xenon is visiting and wants to learn how to breed pea plants. You show your friend a recent batch of pea plants with purple flowers that you grew by crossing plants that had purple flowers with plants that had white

The green stem ant has three (autosome) chromosomes. During meiosis, chromosome 1 and 3 separate normally, but chromosome 2 homologs do not separate during meiosis I. Meiosis II happens normally. What will the resulting cells of meiosis look like?