What happens to genetic information before a cell divides?

Why do relatively few fetuses with chromosomal trisomies survive to birth?

The temperature of the stratosphere increases with height. True False

Species A became extinct about 200,000 years before Species B evolved. Both species lived in the same location. In which arrangement would you MOST probably find their fossils in a rock sequence? a Species B would be in a deeper layer than species A.

Janie is three years old. what serving size of mashed pinto beans would you recommend for her

The whitefish slide is from a blastula, an early stage in embryonic development. why do you think that this sample was chosen rather than a sample of adult tissue?

Describe the type of evidence that scientists used for classifying organisms before they were able to sequence dna

Which of the following is true for DNA but not RNA? Release of PPi from the monomer provides the energy for polymerization. It has 4 different bases. It has secondary structure. None of the above; all are true for both DNA and RNA

What are two important things we use gymnosperms for?

What are some examples of comparative anatomy as evidence of evolution?

A group of students is counting the number of plastic bags placed in a landfill during a single day. what are the students doing? A. starting a promblem b. drawing a conclusion c. making a hypothesis d. collecting data by the way this is ecology!