Answer:
Finger prints, hair, body fluids( blood, saliva, semen), bone.
Explanation:
Answer:
<em>The correct option is D) How is the number of frogs in Massachusetts affected by pollution</em>
Explanation:
A scientific question can be described as a question which can be answered through the scientific method of research. Based on the scientific question, a hypothesis can be formulated. For example, for the option D, the hypothesis can be 'if the pollution increases, then the number of frogs decreases.' A hypothesis is a tentative statement which can be tested through experiments. Based on these experiments, results are formulated and conclusions are drawn. The question mentioned in option D can be answered through this method hence, it is the correct option.
Answer:
C. 579g
Explanation:
Use the formula Density= mass/ volume, make mass the subject of the formula and substitute the given values.
19.3g/cm3 is the density of gold
30cm3 is the volume for the piece of gold
1. 2
2. 34
3. 34
4. 2
Explanation:
2
34
34
2
Answer:
True
Explanation:
All living organisms have DNA which stored their genetic information.This genetic material may show a minute variation, but very similar in compositions. Therefore all organisms share common ancestry.
