Answer:
Human papilloma virus.
Explanation:
STDs are sexually transmitted disease that are more often transferred through the sexual contact. They are the common contagious disease that affects the human population.
Genital warts are marked by the pink or brown swellings near the genital area. They can occur on any reproductive part of the body. The causative agent of the warts is the human papilloma virus and can be converted into cancer if left untreated.
Thus, the answer is human papilloma virus.
Friction would cause the box to be harder to push
Answer
About 10% energy is converted to biomass from one trophic level to another trophic level.
Explanation
Food chain is composed of different trophic level which are classified on the basis of their mood of food obtain. These include
1. Producers (photosynthetic)
2. Primary consumers (herbivore)
3. secondary consumer (Carnivore)
4. Tertiary consumer (carnivore)
5.Quaternary consumer (Carnivore)
6. Decomposer
As larvae are hatched by insects which belong to second trophic level. About 90% of energy in food is lost at each trophic level. As move down the trophic level the number of organism also decreases in each trophic level. Therefore, energy transfer from one trophic level to another is like a pyramid.
