The gap between two neurons across which nerve impulses pass is called: MCQ with Answer and Explanation

Explanation:
Syphilis is caused by the spirochete Treponema pallidum and is curable with antibiotics. Hepatitis B and HIV are viral, genital herpes is caused by herpes simplex virus. Gonorrhea and chlamydia are other bacterial STDs. Early diagnosis and treatment prevent serious complications like neurological damage and congenital syphilis.

Explanation:
Adventitious roots arise from stem, leaf, or other non-root tissues, unlike taproots and fibrous roots that develop from the radicle. Examples: prop roots of banyan, stilt roots of maize, aerial roots of orchids. They can serve support, aeration, or additional absorption.

Explanation:
A food chain is a linear, simplified sequence showing the transfer of energy and matter from one organism to another through consumption. A food web is a more realistic, complex network of interconnected food chains, illustrating the multiple feeding relationships and pathways of energy flow in an ecosystem. While nutrients (matter) are continuously recycled in an ecosystem through biogeochemical cycles, energy flows unidirectionally and is eventually lost as heat; it is not recycled. Thus, statements 1 and 2 are correct.