Bromthymol blue is a chemical that changes color to indicate the presence of oxygen or carbon iv oxide in a water sample. If oxygen is present it changes color from green to blue and if carbon iv oxide is present it changes from green to yellow. Therefore in this case where the BTB was green, it means there was no oxygen or carbon iv oxide in the beaker.
Answer:
Mitochondria: makes ATP
Rough ER: Modifies proteins
Smooth ER: Makes lipids
Golgi Apparatus: Packages and distributes proteins
Lysosome: Digests molecules
I believe this is correct. I took biology last year.
They use tools to help take precise measurements, carry out experiments, and make observations.
1. "Identical fossils were found on continents that were far apart" is the <span>observation that supported Wegener’s theory of continental drift. The correct option among all the options given in the question is the second option.
2. "Volcanoes" is the one among the following choices given in the question that happens when tectonic plates move apart. The correct option among all the options given is the first option.
3. "</span><span>Cold, dense material sinks while hot, less dense material rises" is what happens in a convection cell. The correct option among all the options given in the question is the first option.</span>
Answer:
Explanation:
I think it is 3, 1, and 6, please tell me if I am wrong, thanks