What are some proposed advantages to utilizing dna technology?

Which of these is a major trend in land plant evolution? a) the trend toward smaller size b) the trend toward a gametophyte-dominated life cycle c) the trend toward a sporophyte-dominated life cycle d) the trend toward larger gametophytes

Awave has a wavelength of 15 mm and a frequency of 6 hertz. what is its speed?

There are fewer than 100 naturally occurring elements in the universe, but there are millions of different unified substances. explain how this can be true.