Answer:
Clearance of microorganisms and particulate antigens from the blood stream.
Synthesis of immunoglobulin G (IgG), properdin (an essential component of the alternate pathway of complement activation), and tuftsin (an immunostimulatory tetrapeptide)
Removal of abnormal red blood cells (RBCs)
Explanation:
Answer:
The two membranes pull apart a little and create a small pocket or sack of air. As the developing bird grows, it breathes in oxygen from the air sack and exhales carbon dioxide. Several thousand microscopic pores all over the surface of the egg allow the CO2 to escape and fresh air to get in.
Explanation:
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The correct answer is: A) pontine respiratory centers
The respiratory centre in the pons is responsible for generating and maintaining the rhythm of respiration. Besides this elementary function, it also has the ability to adjust respiration rhythm in c response to physiological changes. Respiratory centre consists of three major respiratory groups of neurons:
• The dorsal respiratory group (DRG)- initiates inspiration (inhalation)
• the ventral respiratory group (VRG)-responsible for exhalation
• Pontine respiratory group- includes the pneumotaxic (controls both the rate and the pattern of breathing) and apneustic centers (promotes inhalation by sending signals to dorsal group).
Answer:
Pituitary gland
Explanation:
To initiate puberty brain releases gonadotropin-releasing hormone, or GnRH which further activates the pituitary gland. Pituitary gland release two essential hormone into the body of both male and female - luteinizing hormone (LH) and follicle-stimulating hormone (FSH). These two hormones affect the two genders differently. In female these two hormones act on ovaries and further leads to release of estrogen
Energy or caloric and protein needs are lower on a body weight basis in childhood than during the pre-adolescent toddler or preschool years. The protein requirement of an individual is the lowest level of dietary protein intake that will balance the losses of nitrogen from the body in persons maintaining energy balance at modest levels of physical activity.
