<span>A water molecule is a polar molecule because ot the shape of its molecule. One side of the water molecule is positively charged while the other is negatively charged. The oxygen and the hydrogen atom in water shared electrons by covalent bonding, the oxygen atom has a slight negative charge and attract most of the electron to itself.</span>
Producers, herbivores, secondary consumers, apex predators
"They result in high non-response bias" is a disadvantage of online surveys.
<u>Option: A</u>
<u>Explanation:</u>
To several market analysts online surveys have become the default tool. It is fairly so. The ease of accessibility and the use of online surveys also in turn creates issues in itself. The advantages and disadvantages of online surveys are listed below:
<u>Advantages:</u>
- Accessible to most target audiences.
- Generally no cost-based geographic restrictions.
- Motivate flexible framework with countless question forms and formats.
<u>Disadvantages:</u>
- Poorly chosen networks of dissemination can contribute to skewed data, low success rates and a host of other possible problems.
- Difficulty targeting other groups of respondents, like those without internet access or samples of non-customers in niche sectors.
Answer:
cell membrane and cell wall
Answer:
C: The transition area towards the continent from the ocean floor
Explanation:
