Answer:
Explanation:
Eating well is fundamental to good health and well-being. Healthy eating helps us to maintain a healthy weight and reduces our risk of type 2 diabetes, high blood pressure, high cholesterol and the risk of developing cardiovascular disease and some cancers.
Answer: Adaptations to a common environment and examples of convergent evolution.
Explanation:
Ichthyosaurs were the giant marine reptiles but it possess tails and dorsal fins though this is not a common character of reptiles. But the presence tails and dorsal fins states that it was an adaptation which was required at that time.
This giant reptile was an mixture of modern fish and dophins. It also had dorsal fin for swimming in water and has vertical tail which was used for the propulsive stroke. They were air breathing but had some part of their life in water as well like other reptiles.
Convergent evolution can be defined as the evolution of similar features in the species found at different period.
Some of the fishes like dolphins and other fishes shows convergent evolution to ichthyosaurs.
I believe the answer is littoral zones.
Sorry if I'm wrong, Hope this helps.
Answer:
c)negative feedback, because the body’s responses counteract the stressor
Explanation:
We know that during exercise or extreme physical activity, the energy requirements are not only met by aerobic respiration but also an-aerobic respiration in which glucose is converted into lactic acid along with CO2.
How negative feedback works:
In our body, the negative feedback mechanism works by adjusting the output of a process. Now, during exercise when there is an increased demand of oxygen in our body, the homeostatic set points of our body for blood pressure and heart rate are reset.
When CO2 is increased,it accumulates in the body and decreases pH, why? Because CO2 is acidic.
So, we know that our body needs pH 7.35 to 7.45 to perform all physiological processes normally. Therefore, during exercise, chemoreceptors of our body detect the pH change and send the signals to our brain for increasing the rate of respiration of lungs. So body, responds by increasing the breathing out of excess CO2 rapidly and the pH is maintained.
This is negative feedback and body's response to counteract the stress.
Hope it helps! :)
I would say B because A doesn’t have a ring to it.