what happened to the water vapor when the earth cooled 3 billion to 3.5 billion years ago? What formed?

True or false When completing a punnett square, genotype is referring to the possible letter combinations

Pangaea means "all lands" in Greek. Why is this a suitable name for a supercontinent?

Changes in behavior that can be attributed to learning may be due to which one of the following events? a. puberty b. eating c. illness d. hunger

A Pea plant that is homozygous for inflated pods are heterozygous for round seeds is crossed with a plant that is heterozygous for inflated pods and a homozygous for wrinkled seeds this across would produce a 4:12 or 1:3 phenotypic ratio true or

Gel, an electronic source, and a micropipet to load the sample into the gel, are needed to make a dna

Which of these is NOT considered to be an organic substance? A) carbohydrates Eliminate B) lipids C) metals D) proteins

Which one of the following remains intact after extensive decomposition and can be used to assist in personal identification of remains? A. Blood B. Hair C. Bones D. Muscle structure

Which star has the highest absolute brightness?

What is the benefit or advantage of using spectral karyotype

A hypothesis that in non-falsifiable is?