Explanation

The body is covered by a glandular epithelial envelope called a mantle

They secrete a calcareous shell

Explanation

The transfer of naked genetic material from one cell to another that can alter the genetic makeup of the recipient cell is termed Transformation.

In bacterial genetics, transformation refers to the process by which bacteria take up free DNA from their environment and incorporate it into their genome.

Explanation

• The hypocotyl hook is a structure formed during the germination of dicotyledonous seeds, such as beans (Phaseolus vulgaris).
• It is a curved region of the hypocotyl (the stem region between the cotyledon and the root) that protects the delicate cotyledon and plumule (shoot) as they emerge from the seed coat.

Explanation

• French bean (Phaseolus vulgaris) is a dicotyledonous plant, belonging to the family Fabaceae (Leguminosae).
• Dicot plants have two cotyledons (seed leaves) in their seedlings, and their leaves typically have net-like veins.

Explanation

Those symptoms are classic signs of intussusception, where one segment of the intestine invaginates into another, often leading to obstruction and ischemia.

It's commonly seen in infants and young children.

Explanation

• Decomposers are organisms that break down dead and waste products of producers and consumers, releasing nutrients back into the environment.
• Examples of decomposers include bacteria, fungi, and detritivores like earthworms and insects.

Explanation

A direct inguinal hernia occurs when the intestines protrude through the Hesselbach triangle into the inguinal canal

A short passageway in the anterior abdomen which allows structures to transverse the abdominal wall to the external genitalia.

Explanation

• Carnivores are animals that eat only meat, primarily from other animals.
• Examples of carnivores include lions, tigers, bears, wolves, and sharks.

Explanation

• Marasmus is a severe form of protein-energy malnutrition.
• It develops due to a lack of sufficient calories and essential nutrients.
• As a result of starvation, poverty, and inadequate food supply.

Explanation

In a young woman with severe right-sided abdominal pain radiating to the shoulder tip, along with a history of amenorrhea, ectopic pregnancy is a significant concern.

Ectopic pregnancy occurs when a fertilized egg implants outside the uterus

Most commonly in the fallopian tube, and can lead to severe abdominal pain