How long does it take for the umbilical cord to fall off?

How does human environment effect the biosphere

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

Me with biology endocrine system crossword also image left i need with hw