Human Body Systems

The primary function of the circulatory system is to transport oxygen, nutrients, and wastes. Its main components include the heart, blood, and blood vessels.

The respiratory system takes in oxygen, which is then transported to the heart through the circulatory system, where it is pumped to the rest of the body.

The digestive system breaks down food and absorbs nutrients, with its main organs being the mouth, esophagus, stomach, and intestines.

<p>Photosynthesis is the process by which plants use sunlight, carbon dioxide, and water to produce glucose and oxygen.</p> Signup and view all the answers

<p>Transpiration is the process of water movement through a plant and its evaporation from leaves, stems, and flowers. It is essential for maintaining plant water balance and regulating temperature.</p> Signup and view all the answers

<p>Two methods of plant reproduction are sexual reproduction (involving seeds) and asexual reproduction (involving parts of the plant like runners or tubers). An example of sexual reproduction is the production of seeds in flowers, while an example of asexual reproduction is the growth of new plants from potato tubers.</p> Signup and view all the answers

<p>The primary function of the circulatory system is to transport oxygen, nutrients, and wastes throughout the body. It is responsible for delivering oxygen and nutrients to cells and removing waste products.</p> Signup and view all the answers

<p>The respiratory system takes in oxygen, which is then transported to the circulatory system, where it is distributed to cells throughout the body. The circulatory system also transports carbon dioxide from cells to the lungs, where it is exhaled.</p> Signup and view all the answers

<p>The digestive system breaks down food into nutrients, which are then absorbed and distributed to cells throughout the body, providing energy and supporting growth and development.</p> Signup and view all the answers

<p>Chloroplasts are the site where photosynthesis takes place, and they contain the pigment chlorophyll, which absorbs light energy and converts it into chemical energy.</p> Signup and view all the answers

<p>Transpiration is the process of water movement through a plant, and its evaporation from leaves, stems, and flowers, which helps to maintain the balance of water and nutrients in the plant.</p> Signup and view all the answers

<p>Sexual reproduction involves the production of seeds, which results in genetic variation, while asexual reproduction involves the production of new plants from parts of the parent plant, resulting in genetically identical offspring.</p> Signup and view all the answers