Geckos and some other animals can climb smooth surfaces. which of these explanations of this observation do you think is most reasonable? the gecko’s feet are rough, which increases the friction with the surface. the gecko’s feet have tiny suction cups on them that stick to the surface. the gecko’s feet secrete a sticky substance that them adhere to the surface. the gecko’s feet contain molecules that are attracted to the molecules on the surface.

The gecko’s feet contain molecules that are attracted to the molecules on the surface.

Geckos are lizards which belongs to reptile group. They are found in warm climatic regions of the world. Geckos and some other animals can climb smooth surfaces because of presence of Van der waal forces of attraction between the molecules of gecko's feet with molecules of the surface. The force of attraction is generated due to fluctuations or differences in charge present in molecules of feet and that of surface. The charge fluctuations generally comes into sync and generate attractive force.

D. The gecko’s feet contain molecules that are attracted to the molecules on the surface.

step 1 ammonium can be absorbed by plants, but some is converted into nitrates which are better for plants to absorb. this is called nitrification. 2. step 2 the deer eats the plants and uses the nitrogen-containing proteins for cell growth. 3. step 3 bacteria in the soil conduct nitrogen fixation to convert nitrogen gas from the atmosphere into ammonium. 4. step 4 some of the nitrates are absorbed back into plants, but denitrification breaks down the nitrates into nitrogen gas released back into the atmosphere. 5. step 5 nitrogen is found in the urine, which gets broken down into ammonium through the process of ammonification. 6. step 6 plants absorb the ammonium and begin assimilation, the process to add the nitrogen to protein.