The trunk of a tree carries out functions that are similar to the functions performed by which pair of human body systems?

The skeletal system and the circulatory system

Explanation:

The trunk of the tree helps in transporting the water and food materials to various parts of the plant.

The trunk of the plants provides it support and allows the movement of the substances from the roots to the other parts of the tree.

The skeletal system of the human body provides structural support to human body. The circulatory system of the body helps in transporting materials fro one part  to another in the body.

the abdomen (less formally called the belly, stomach, tummy or midriff) constitutes the part of the body between the thorax (chest) and pelvis, in humans and in other vertebrates. the region occupied by the abdomen is termed the abdominal cavity. the stomach secretes acid and enzymes that digest food. ridges of muscle tissue called rugae line the stomach. the stomach muscles contract periodically, churning food to enhance digestion. the pyloric sphincter is a muscular valve that opens to allow food to pass from the stomach to the small intestine.

the right answer is a. skin cells forming from sunlight.

the liver is an organ endowed with a fantastic ability to regenerate

. thus, if a hepatectomy (ablation) of 70% of the hepatic mass is performed in the rat, there is complete recovery in 7 to 10 days.

prokaryotes are beings that have existed since the existence of life on earth, and do not come from another realm.

ribosomes are organelles that exist naturally in eukaryotes, either in free form or attached to the endoplasmic reticulum.

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