A keystone species helps define an entire ecosystem. Without its keystone species, the ecosystem would be dramatically different or cease to exist altogether.
Warm currents move from the equator to the poles.
Answer:
The correct answer is option B, that is, temperature optimum.
Explanation:
Every organism demonstrates maximum growth and survival under some values of abiotic elements. The temperature, which encourages maximum development and growth of a specific organism signifies its temperature optimum.
In the mentioned question, the lizard has opted for certain places where the temperature is most appropriate to it. The selection of the specific place to attain the best possible temperature conditions signifies its temperature optimum.
<u>Answer</u>:
A total of 32 ATP molecules per glucose molecule is generated in cellular respiration and glycolysis. In substrate-level phosphorylation, ATP is generated from the coupled reactions whereas in oxidative phosphorylation ATP is formed by using the oxidized NADH and FADH cofactors. The energy for oxidative phosphorylation comes from the movement of proton to the matrix of mitochondria through ATP synthase.
<u>Explanation</u>:
Each molecule of glucose utilizes 2 ATP molecules and breaks down into 2 pyruvate molecules and generates 4 ATP from substrate-level phosphorylation and 2 molecules of NADH.
Pyruvate converts into acetyl Co-A and produces 2 molecules of NADH. In citric acid cycle, the 2 molecules of acetyl Co-A produces 2 molecules of GTP/ATP, 6 molecules of NADH, 2 molecules of FADH2.
In oxidative phosphorylation 1 molecule of NADH contributes to the production of 2.5ATP, FADH2 gives 1.5ATP. Hence the total production of ATP is 4 + 2 + 25 + 3 = 34 – 2 ATP (used early in glycolysis) = 32 ATP (net ATP production).
