LIFE SCIENCE

OBJECTIVE LIFE SCIENCE

EVOLUTION

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
What term is used to refer to structures in organisms that have a similar origin or ancestry even though they may be very different in physical appearance?
A
analogous
B
homologous
C
genes
D
fossils
Explanation: 

Detailed explanation-1: -Homologous structures are similar structures in related organisms. The most important thing to remember about homologous structures is that they share common ancestry. In other words, only organisms that are somehow related to each other can have homologous structures.

Detailed explanation-2: -Analogous Structures vs. The structures derived from a common ancestor or from the same evolutionary or developmental origin are referred to as homologous structures.

Detailed explanation-3: -Homologous features Physical features shared due to evolutionary history (a common ancestor) are said to be homologous.

Detailed explanation-4: -Homologous structures share a similar embryonic origin; analogous organs have a similar function. For example, the bones in the front flipper of a whale are homologous to the bones in the human arm. These structures are not analogous.

Detailed explanation-5: -Homologous structures are structures that are similar in related organisms because they were inherited from a common ancestor.

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