Answer: Van der Waals forces
Explanation:
Van der Waals forces are weak intermolecular forces that depend on the distance between two particles. They are caused by correlations in the change in polarization between two nearby particles. To put it in other words, when a particle changes its polarization (becomes more positive on one end and more negative on the other), so does the adjacent particle, and the next one, and so on. This causes these particles to stick together weakly.
The tiny "hairs" increase the surface area of the gecko's feet in contact with the wall, which makes the bond stronger and allows it to support all of its weight.
Because experiments have shown that geckos stick well to both hydrophobic and hydrophilic surfaces, we can assume there aren't any hydrogen bonds present.
Ionic bonds can't be present either because geckos wouldn't stick to electrically neutral surfaces, as these bonds require charged molecules.
<span>cells are the units of structure and different functions in livings things
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<span>B. A producer supplies energy for the consumers in the ecosystem.
In science, a producer is an organism that can create it's on food and serves as food for a consumer. An example of a producer could be seaweed, or algae.
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Answer:
Explanation:
Human beings also compete with some animals for food. For example, humans fish the oceans, taking many fish for their own consumption. When they do so, they take fish that larger fish would otherwise have eaten. These are both instances of humans and animals competing for resources.
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