During the 1800s, seal hunters preferred dark-furred seals from natural seal populations. What effect would best describe what this did to the remaining seal populations over time?

Most animals can survive without food for a longer time than they survive without water. Why is water so important to animals? Why can an animal survive without food for longer?

Who is the curve for inventing the first structure of DNA

The genetic material that determines traits in a cell consists of DNA. How many different nucleotide bases are in DNA?

If the frequency of an allele ("A") for an STR locus is 0.02 and the frequency of another allele ("B") for the same locus is 0.03, what is the probability that a member of that population is heterozygous ("AB") for the above alleles?

If a cell is going through mitosis and it has 16 chromosomes, how many chromosomes will the daughter cell have? A. 8 B. 32 C. 16 D. 10

Why has antibiotic resistance evolved in bacteria? A. All bacteria reproduce very quickly. B. Bacteria exposed to antibiotics developed a resistance to them. C.

What is anaerobic respiration? A. The process cells use to release energy from glucose when oxygen is not available B. Physical activity that increases heart and breathing rates C. Physical activity that decreases heart and breathing rates D.

Newborn human babies with lesser body weight are prone to infections. Heavier babies are difficult to deliver through the narrow pelvic passage of human mothers and may not survive.

This biomolecule provides long term storage of energy in heterotroph A.) Carbohydrate B.) Lipids C.) Proteins D.) Nucleic Acids

Como os fósseis auxiliam nos estudos cientificos?