In humans, the dental formula of permanent teeth is: MCQ with Answer and Explanation

Explanation:
Cuscuta (dodder) is a parasitic plant that lacks chlorophyll and derives nutrients from the host plant through haustoria. It is a total stem parasite. Mango, neem, and sunflower are autotrophic plants performing photosynthesis. Heterotrophic plants include parasites (Cuscuta, Rafflesia) and saprophytes (Monotropa).

Explanation:
Ruminants like cows, sheep, and goats have a four-chambered stomach (rumen, reticulum, omasum, abomasum) to digest cellulose via microbial fermentation. Cats and dogs have simple stomachs, pigs are monogastric.

Explanation:
Frederick Griffith in 1928 demonstrated the transformation of non-virulent pneumococci to virulent by heat-killed virulent strain, suggesting a transforming principle. Avery et al. later identified it as DNA. Hershey-Chase confirmed DNA is genetic material.