How can dna be useful in phylogeny?
a. dna isn't useful in phylogeny, as morphological characteristics are used exclusively in phylogeny.
b. dna sequences from different species can be compared, giving us more information about their evolutionary relationships.
c. dna sequences are rearranged to predict how species could evolve in the future.
d. dna from every organism in a clade is sequenced to identify genetic mutations that have occurred

In the african savanna, more wildebeests are born than the environment can support. which is most likely to happen over a period of years as a result

The ruiz family is exchanging euros for us dollars. the exchange rate is 1 euro equals 1.35261 usd. since the ruiz family knows that usd are stated to the nearest hundredth of a dollar, they used the conversion ratio

Which of these is true of the cytoplasm of an unfertilized egg? a. it is an unevenly distributed mixture of mrna, proteins, organelles, and other substances. b. it does not contain substances that are important in directing development. c. these substances are supplied by the sperm. d. it does not contain substances that are important in directing development. e. development is directed solely by the surrounding cells. f. it is a homogeneous mixture of mrna, proteins, organelles, and other substances. g. it does not contain substances that are important in directing development. h. these substances are produced by the dna of the fertilized zygote.