Scientists believe all the continents were once connected. They named the supercontinent . 1) Euroasian.
2) Pre-America.
3) Prehistoria.
4) Pangea.

Which organelles are involved in energy conversion

Compare the depth of field when focusing with low power and high power. which power has the greater depth of field?

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