Which of the following best represents the avrege rate a person can quickly walk

How can scientists test their ideas about the origin of the universe if they can't physically interact with or study?

Round peas are dominant to wrinkled. what would you cross a round pea with to determine if it were heterozygous or homozygous dominant? why? ?

Twin boys have girlfriends one of the couples have a baby would the dna of the lil baby be the same as the couples dna bc the boys are identical twins