xylem
The size of body openings is primarily controlled by smooth muscles that contract and relax, such as the muscles surrounding blood vessels, airways, and digestive tract. Autonomic nervous system plays a key role in regulating these muscles, with sympathetic activation typically causing constriction and parasympathetic activation causing relaxation to control the diameter of body openings. Hormones and local factors can also influence muscle tone to help regulate the size of body openings as needed.
Stomata
The leaves of a plant give off water vapor through tiny openings on their surface called stomata. Stomata help regulate the exchange of gases, such as oxygen and carbon dioxide, and the loss of water through transpiration.
They are called stomata, tiny holes that regulate the intake/output of gas, such as carbon dioxide and oxygen.
The openings on the underside of leaves which allow CO2 (Carbon Dioxide) to enter the plant are known as (singular ). They also allow O2 (oxygen) to exit the plant.
muscular
The stomata.
Spores
The size of body openings is primarily controlled by smooth muscles that contract and relax, such as the muscles surrounding blood vessels, airways, and digestive tract. Autonomic nervous system plays a key role in regulating these muscles, with sympathetic activation typically causing constriction and parasympathetic activation causing relaxation to control the diameter of body openings. Hormones and local factors can also influence muscle tone to help regulate the size of body openings as needed.
Size of openings depend on the culture you want the house to be designed s Size of openings depend on the culture you want the house to be designed s
They are called stomata, openings or pores in the epidermis of leaves.
lenticels or may be spores....
stomata
stomata
Stomata.
Stomata
stomata