Peter and rosemary discovered a natural ecosystem with an extreme climate, oscillating between cycles of intense drought and abundant rainfall, as well as an uncontaminated area that had never been explored by humans. This was an excellent location to study the evolution of Galapagos finches.
- For their outstanding long-term studies showing evolution in action in Galápagos finches, Peter and Rosemary Grant are renowned.
- They have shown that natural selection is responsible for the incredibly quick changes in body and beak size in response to variations in the availability of food.
- Due to the lack of predators or rivals for the finches, Daphne Major makes an excellent location for research.
- (The cactus finch is the only other finch on the island.)
- The weather, and consequently the availability of food, has a significant impact on the medium ground finch's capacity to survive.
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Answer:
Homeostasis refer to as the maintainence of equillibrium within the body. Endocrine systems play a major role in maintainence of equillibrium. The hormones released are continuously inactivated by negative feeback system to maintain homeostsis.
Explanation:
Homeostasis in a body is refered as a dynamic equillibrium which constantly changes. Feedback regulation systems maintain homeosatsis.
The release of hormones into the blood is controlled by a stimulus. A stimulus can increase or decrease the release of hormones.The response to a stimulus changes the internal conditions and may itself become a new stimulus. This self-adjusting mechanism is called feedback regulation.
There are two types of feedback systems.
Negative feedback occurs when the response to a stimulus reduces the original stimulus. Positive feedback occurs when the response to a stimulus increases the original stimulus.
If the hormones released are not controlled by these feedback systems, enormous amount of hormones will change the whole internal enviornment of the body ,hence, equillibrium will be disturbed and result in death of cells and death of an indivisual.
Filtration rate = 125 mL/minute = 0.125 L/min
Minutes in a day = 24 hours x 60 minutes per hour
Minutes in a day = 1440
Total filtrate per day = 0.125 x 1440 = 180 L
Number of 2 L bottles to be filled = 180 / 2
= 90 bottles
This value is very large and we do not produce this much urine in a day. This means a portion of the fluid is being reabsorbed.
Absorption.
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Answer:
multicellular and eukaryotes.
