Answer:
11. Why do scientists assume that experimental results can be reproduced? A key assumption in science is that nature behaves in a consistent manner.
12. What did Anton van Leeuwenhoek discover? He discovered a world of tiny moving objects, which he called "animalcules," in rainwater, pond water, and dust.
13. What did John Needham conclude from his test of Redi’s findings? He concluded that the little animals in a bottle of broth could only have come from the juice of the broth.
14. What did Spallanzani do to improve upon Redi’s and Needham’s work? He boiled two containers of broth, assuming that the boiling would kill any microorganisms that were present.
15. How did Pasteur settle the spontaneous generation argument? He designed a special flask to show that as long as broth was protected from microorganisms, it remained free of living things.
Explanation:
Answer:
Nucleic acids have the most control of traits and inheritance.
Answer:
No, not all oxygen atoms are the same
Explanation:
Isotopes and ions exist
Plant cells have a cell wall but animal cells have a cell membrane
Explanation:
Bases on the structure of their mouth and the type of the skeleton, scientists have divided the fish into 3 main categories:
- Jawless Fish
- Cartilaginous Fish
- Bony Fish
<u>Lampreys:</u>
- Lampreys belong to the first category i.e. Jawless Fish.
- Lampryes are mostly parasites and feed on other fish by sucking their blood and tissues using their suction like mouth structures.
- Their body is not covered with scales and they do not have a pair of fins.
<u>Skates:</u>
- Skates belongs to the second category i.e. Cartilaginous Fishes.
- They have jaws and pair of fine unlike Lampreys (Jawless Fish)
- Their bodies are covered with scales.
- These are carnivores.
