The answers are the following:
- Hypothesis: caffeine affects the rate of mitosis in frog eggs
- Null hypothesis: caffeine has no effects on the rate of mitosis in frog eggs
- Independent variable: time
- Dependent variables: rate of mitosis in frog eggs, amount of caffeine used in each treatment, etc
- Control group: rate of mitosis in frog eggs no treated with caffeine
Question: Which pituitary hormone causes liver cells to release somatomedins that increase the rate of uptake of amino acids by cells such as skeletal muscle fibers?
follicle-stimulating hormone
prolactin
thyroid-stimulating hormone
growth hormone
Answer:
growth hormone
Explanation:
Somatomedins are growth factors. The growth hormone makes the cells such as liver cells, skeletal muscles, bones, etc. to secrete the somatomedins. The somatomedins from the liver enter the bloodstream to reach the target cells. The somatomedins make the skeletal muscles, bones, etc. to absorb amino acids into the cells so as to facilitate protein synthesis. This growth factor also downregulates the breakdown of proteins. This is how growth hormone triggers the growth of muscles and soft tissues.
Your answer is: <span>A) Lemon juice, water, Tums </span>
The correct answer is (b) Levees prevent rivers from flooding their banks.
Levees are formed when water pushes the sediments to the side of a river. They serve as a natural barrier and prevents flood. This is very beneficial in terms of human settlement. Levees can be natural or artificial. They prevent water from going into the areas where there is a human settlement (bank of river). They prevent the rivers from flooding cities in a storm surge. If levees are broken the result can be disastrous for the surrounding area.
