The Possibility of Extraterrestrial Life Was First Considered

question 13

Multiple Choice

The possibility of extraterrestrial life was first considered

• A) after the invention of the telescope
• B) only during the past few decades
• C) thousands of years ago during ancient times
• D) at the turn of the 20th century

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Definitions:

Teratogens

Agents or factors that cause malformation of an embryo or fetus, including certain drugs, chemicals, and infectious diseases.

Recessive Genes

Genes that produce their characteristic phenotype only when two copies of the gene (one from each parent) are present, otherwise being masked by dominant genes.

Prenatal Care

Healthcare and support given to a pregnant woman before childbirth to ensure a healthy pregnancy.

Birth Defects

Physical or biochemical abnormalities present from birth, which can result from genetic or environmental factors.