The right choice would be A
Bats eat insects the most, such as moths, mosquitoes, and beetles.
Question is incomplete. Complete question is as follows:
The ____ abuts the lumen of the alimentary canal and consists of epithelium, lamina propria, and muscularis mucosae.
Answer:
Mucosa
Explanation:
Mucosa or mucosal membrane forms the lining of many cavities in the body like the alimentary canal and also covers many internal organs. It lines reproductive, digestive and respiratory system. In the gastrointestinal tract the mucosa is made of three layers: epithelium, lamina propria and muscularis mucosae.
The epithelium of mucosa is made of simple columnar epithelium cells. It consists of many types of cells like parietal cells (secrete HCL) and foveolar cells (secrete mucus). Lamina propria is a loose connective tissue present beneath the epithelium. It provides nutrition and support to epithelium. Muscularis mucosae has smooth muscle fibers which helps the glands on the surface to secrete their contents and also increase the contact between contents of lumen and epithelium.
Answer:
It will depend on the type of virus that infects the host's cells. For example, if it is a poliovirus, the answer will be <em>"D. poliovirus protein coats and poliovirus genetic material"</em>
Explanation:
A virus is composed of genetic material encapsulated by a protective coat protein (capsid). The genetic material of a virus can be either DNA or RNA and single-strand or double-stranded (either DNA or RNA). Moreover, the capsid may be surrounded by an additional spikey coat known as envelope. During infection, a virus invades the host´s cells to replicate both its genetic material and its proteins (they use host cellular machinery to synthesize new viral proteins). Depending on the type of virus, they can integrate and replicate its genetic material into the host genome (DNA viruses and RNA retroviruses) or replicate its genetic material outside the host genome (RNA viruses in general).