The evolutionary process where two unrelated species evolve similar traits independently, often due to adapting to similar environments, is called: MCQ with Answer and Explanation

Explanation:
Germline mutations can be passed to offspring. Mutations can be spontaneous or induced; silent mutations do not change the amino acid sequence.

Explanation:
An ecosystem is a functional unit comprising both the biotic (living organisms) and abiotic (non-living physical environment like soil, water, sunlight) components interacting as a system. A population is a group of individuals of the same species living in a specific area and interbreeding. A community consists of all the interacting populations of different species living together in a defined area, not just one species. Thus, statements 1 and 3 are correct.

Explanation:
Natural passive immunity occurs when pre-formed antibodies are transferred naturally from one individual to another. During pregnancy, maternal antibodies (primarily IgG) cross the placenta to the fetus, providing temporary protection against diseases the mother is immune to. Colostrum (mother's milk) also provides IgA antibodies to the newborn.