Answer:
The DNA is packed into chromosomes. The DNA replication is the same as mitosis. And after the DNA is replicated, the homologous will double, and now each chromosome now has a homologous pair
Explanation:
The frog<span> heart has 3 chambers: two atria and a single ventricle. The atrium receives de-oxygenated blood from the veins (blood vessels) that drain the various </span>organs<span> of the body. The left atrium receives oxygenated blood from the lungs and skin...i believe this is right :)but im not sure but this is some of what one of my books say.</span>
Answer:
Sympathetic Nervous system
Explanation:
The sympathetic nervous system is the part of the nervous system that is responsible for "Fight or flight" reactions.
The three factors are temperature, moisture, and air pressure
Answer:
Louis Pasteur.
Explanation:
Louis Pasteur gave theory of spontaneous generation that states, life arose from non-living things. Pasteur disprove the theory of spontaneous generation by S-shaped tube experiment.
He used swan-neck shaped flasks (twisted necks) and filled the flasks with sterilized beef broth. Due to twisted neck, entry of air was allowed to the flasks from outside, but not microorganisms.
In these sterilized flasks, microorganisms could not grow as entry of airborne microbes was prevented. But if the necks of flasks were broken, growth of microorganisms entered into flasks and showed growth.
Thus, Louis Pasteur showed that microorganisms do not grow spontaneously in flasks with beef broth.
