Had to look for the missing options and here is my answer.
Rock layers tell something of what has occurred in the past times. Based on this, we can assume as we read this story is that "t<span>he process in the rock cycle were the same in the past as they were today." This answer is based on the actual options posted. Hope this answers your question.</span>
Are you talking about a fruit fly?
They are used to feel around and to capture prey. They extent their tentacles to capture prey, and use their nematocysts (nettle-like cells on their tentacles) to pierce and poison their prey. Hope that helps!
Answer:
A
Explanation:
A cell can communicate with nearby cells (paracrine signaling) and with cells far away from them (endocrine signaling). These signalings are dependent on the cell membrane receptors on the cell and their response to ligands that bind to them. An example of close cell communication is that of neurotransmitters in neural synapses. An example of cells communicating with faraway cells is that of the pancreas that produces insulin into the blood. The insulin induces other cells across the body to take up glucose.
I hope this helps and that you have a great day! :)
Answer:
Explanation:
The O-F glucose test (oxidative-fermentation) is used to determine whether an organism is performs oxidative or fermentative metabolism.
Oxidative metabolism (i.e respiration) takes place in the presence of oxygen while fermentative takes place in the absence of oxygen.
Facultative anaerobes can carry out both fermentation and respiration.
The O-F medium has glucose, peptones and a pH indicator. When the pH of the medium is acidic, that is glucose has been broken down, the medium turns yellow. When it is basic, it turns blue implying that peptone and not glucose had been broken down.
The sealed tube is overlaid with oil so as to prevent oxygen from getting in, making it anaerobic.
The unsealed tube allows oxygen.
Enterics would be yellow is both tubes because they are facultative anaerobes and can grow in the presence or absence of oxygen, hence they carry out both respiration and fermentation.
