Air rises when it is warmer
Both a and b. Protists can be heterotrophic (organisms that get their nutrition from complex substances) or autotrophic (organisms that make their own nutritional substances).
It means hot liquid or semifluid.
<h2>Answer is option "C"</h2>
Explanation:
- The way that these formative highlights are so like the gill structures in fish bolsters that fish, chicks, and people share a typical predecessor
- Ancestral characters are regularly, however not constantly, safeguarded in a life form's improvement. For example, both chick and human early creatures experience a stage where they have cuts and bends in their necks like the gill cuts and gill bends of fish
- These structures are not gills and don't shape into gills in chicks and individuals, be that as it may, how they are so similar to gill structures in fish currently being created support that chicks and individuals share a run of the mill ancestor with fish. Subsequently, formative characters, alongside different lines of proof, can be utilized for developing phylogenies
- Hence, the right answer is option C "fish, birds, and humans share a common ancestor"
