Answer:
DNA is most succeptible to radiation.
Explanation:
DNA is most succeptible to radiation because;
- The radiations may break the Double strand of DNA.
- Base pairs of DNA or sugar phosphate backbone may be broken down by radiations (X-ray, aplha and beta particles).
- The hydrogen bonding between nitrogen bases may be affected by radiation.
The radiations may cause mutations in DNA which effect the cell survival or correct replication.
False. Smooth muscle is found throughout the chest and abdominal cavities, where most of the body organs are located.
The effects of exercise on heart rate can be studied by analyzing the number of heart pumps according to physical exercises, while control variable is room temperature.
<h3>What is an independent variable?</h3>
An independent variable is any variable that isn't changed along the experimental procedure, while the dependent variable is modified by the conditions.
The sample size must be statistically significant (N sample size higher than 50 individuals) and a number of trials at least two to compare results.
In conclusion, the effects of exercise on heart rate can be studied by analyzing the number of heart pumps (dependent variables) according to physical exercises (independent variable), control variable is room temperature.
Learn more about independent variables here:
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Answer:
Primary consumers are the organisms that feed directly on the autotrophs to obtain energy. These consumers thus help to transfer energy to higher trophic levels that are secondary consumers. An example is the goat feeding on a plant is a primary consumer that directly obtains its energy from the plant.
Explanation:
The answer is true, since catabolism is the breakdown of more complex compounds into more simpler ones.
