Answer:
The correct answer would be B) homologous.
Homologous organs refer to the set of organs which have different appearance and function but share common anatomy due to common ancestry.
For example, the forearm of human, forelimb of the horse, wing of a bat, wings of birds, and seal's flipper share common underlying anatomy. They are made up of same sets of bones (humerus, radius, ulna, carpels, metacarpals, and phalanges).
These organs are adapted to perform different functions in an environment.
It is also observed that these organs developed in the same manner in the embryo and from similar origins.
As food passes through the GI tract, it mixes with digestive juices, causing large molecules of food to break down into smaller molecules. The body then absorbs these smaller molecules through the walls of the small intestine into the bloodstream, which delivers them to the rest of the body.
A)A chromosome is a long continuous strand of DNA
Answer:
When a foreign antigen or pathogen enters our body, our immune cells detect it and generate a response by producing antibodies against it. Also, our immune cells generate memory cells so that our body remembers this pathogen if it invades the body afterwards. Hence, it takes less time for an organism's body to generate a response when a pathogen invades for the second time. The memory cells immediately detect the pathogen and a response is generated.
