Answer:
By designing an experiment where the temperature on the thermometer is measured after a chosen (same) time interval when the thermometer is wrapped with the different materials and placed in the freezer
Explanation:
Experimental design
Materials given: freezer, a thermometer, samples of materials
setup:
1. The freezer is put on and made to remain at a particular temperature, mimicking the winter season.
2. Next, different materials for the coat design with equal dimensions are used to rap the thermometer whose initial temperature has been recorded in the same pattern and the thermometer is placed in the freezer and left for a certain time, which is made constant for the different materials.
3. after the time, the final temperature on the thermometer is recorded.
Result interpretation
The temperature is expected to drop after the time in the freezer, but the material with the smaller change (drop) in temperature indicates that it traps more heat hence is the best material for designing a winter coat
independent variables: type of material used
dependent variables: temperature on the thermometer
control variables: time, dimensions of materials, temperature of freezer, pattern of wrapping.
Answer:
B
Explanation:
because they belong to classe Echinoidea, phylum echonodermata
The answer would be: White blood cell (WBC) count of 20,000/mm3
Peritoneal dialysis is an invasive treatment that involves an injection of fluid to the peritoneal space. It has a high risk of infection, which could cause peritonitis. Increases of white blood cells is a sign of infection. Peritoneal dialysis needs to be stopped if the infection occurs.
Answer:
A buffer is a solution that can resist pH change upon the addition of an acidic or basic components. It is able to neutralize small amounts of added acid or base., thus maintaining the pH of the solution relatively stable. This is important for processes and/or reactions which require specific and stable pH ranges.
Explanation:
A habitat is the area where a plant or animal naturally lives and grows. You could think of habitat as the special place in a community in which a plant or animal lives. An ecosystem is a community of living and non-living things that work together. An ecosystem is basically the "neighborhood" where animal lives
