Answer:
Primary succession begins in barren areas, such as on bare rock exposed by a retreating glacier.
Explanation:
<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"
Pyrimidines are single-ringed nitrogenous bases that include Uracil, Cytosine, and Thymine.
If any of these three nitrogen bases are part of the multiple choice, then it should be the answer. I just took the test and for me it was Thymine.
Answer:
pigs
Explanation:
Influenza is an infectious disease caused by influenza viruses, which can be divided into four types A, B, C and D. In humans, influenza A and B viruses are known to cause epidemics, while A viruses are known to cause pandemics. Influenza viruses are also found in birds and mammals (e.g., dogs, cats, cattle pigs and horses). Cross-species virus transmission refers to the transmission process of infectious viruses between hosts from different species. Several viruses that may cause severe diseases in humans have originated from animal species, e.g., avian influenza A virus that can be transmitted to humans through an intermediate host (e.g., pigs). Other examples of cross-species virus transmission include the Ebola virus and Hantaviruses. It has been suggested that cross-species transmission is a common phenomenon in rapidly evolving viruses.
Answer:
True. Homologous structures provide evidence of a common ancestor.
