Yes, you're correct, it's the first one. He should do research before he does an experiment, because someone else may already know.
Keens cycle connects glycolysis and the citric acid cycle.
The answer is "Cartilage"!!!XD
Hope this helped!!!XD
Also, can you give me brainliest please?
Answer:
The ecosystem would be forced to radically change, allowing new and possibly invasive species to populate the habitat.
Explanation:
A keystone species is an organism that helps define an entire ecosystem. Without its keystone species, the ecosystem would be dramatically different or cease to exist altogether.
I HoPe ThIs HeLpS!!!!!
