A key element recognized by all anthropologists who use the concept of caste is that caste groups are:. a. endogamous
b. exogamous
c. unequal
d. open

Can someone i have no idea of how to do this.

In tomato plants, mendel found that the allele for smooth seeds (s) is dominant, while the allele for wrinkled seeds (s) is recessive. which of these punnett squares shows crosses between two plants heterozygous for smooth seeds? i need this to be answered as soon as ! sry the picture is bad quality

The main ingredient of magma is a pahoehoe. b silca c dissolved gases d obsidian