What were the first cells like

Mitosis results in how many cells? are they different or identical? what kind of cells do mitosis?

Which of the following is true of cloning? A) clones are the result of gene therapy B) clones contain exactly the same DNA sequences as the original organisms C) clones are always exactly identical in their appearance and behavior D) clones contain

Which of the following is a major difference between lactic acid and alcohol fermentation?

What three substances can raise blood cholesterol level and why is this a concern?

If nutrients were in short supply in an ecosystem how might it affect an organism

Demi is a 10-year-old with a mental age of 12. demi's intelligence quotient (iq) is

Where does most of the nitrogen in earths atmosphere come from? A: fires B: erosion C: bacteria D: the breakdown of carbon dioxide

Which of these cannot be broken down into simpler substances? Compound Element Organ Organism

What jseone ting dna and rna have in common

Any statements about optimal population are inevitably culturally determined. a. True b. False