<span> The main source of energy for humans is the food we eat.</span>
Answer:
Other energy sources which are non-renewable are becoming more and more scarce, such as coal. Due to the lack of such resources, people are looking towards renewable sources of energy such as solar energy.
<span>Answer : spores, which grow into
a gametophyte<span>
</span><span>A
sporophyte produces spores therefore those plants that have spores is called
sporophyte. A sporophyte is a type of a diploid organism so, which means
that meiosis must occur in order to be able to produce haploid cells containing
half number of chromosomes. Meiosis in sporophyte occurs in an area called
sporangia. The spores that are being created inside sporangia shall be release
into the air. Mitosis is expected to take place on a single haploid spore in
order to be a multicellular gametophyte.</span></span>
Answer:
B. Hermit crabs and fish that hide in shells compete with each other for shelter.
Explanation:
Hermit Crabs hides from their predator by hiding in old seashells (e.g those of gastropods) for protection and/or shelter. This is a form of camouflage exhibited by hermit crabs for survival. Now, if peradventure some species also uses the same mechanism for adaptation and survival, vigorous competition will sets in between hermit crabs and those species because the availability of empty shells ata ny given place depends on the relative abundance of gastropods which is crucial for the survival of both organisms from their predators. Sometimes, they may even have to fight or kill a competitor in order to gain access to the shell that favors them.