Answer:
A) central
Explanation:
The lymphatic system plays a major role in specific immune responses. The lymphatic system is composed of lymph, lymphatic vessels, and lymphatic organs (bone marrow, thymus, lymph nodes, spleen, etc). These lymphatic organs help to produce and repair immune cells including lymphocytes (T cells and B cells), monocytes, and plasma cells that generate antibodies against specific pathogens. The lymphatic organs can be classified into 1-primary (central) lymphoid organs, i.e., bone marrow and thymus, that produce lymphocytes and 2-secondary lymphoid organs, i.e., spleen, lymph nodes, and tonsils, that filter out and destroy undesired pathogens. The central lymphoid organs are sites where lymphocytes can divide and proliferate.
Answer:
The more testosterone a man has, the stronger his brow, cheekbones and jaw line. Meanwhile, the more estrogen a woman has, the wider her face, fuller her lips and the higher her eyebrows. In short, sex hormones control the divergence of male and female facial features.
Along with chiseled jaws, higher testosterone has been shown to correlate with muscle strength and aggression in men, as well as with genetic vigor. Perhaps for this reason, studies have shown that women judge men with more angular features as likely to be dominant over men with rounder, more effeminate faces.
They also tend to rate men with masculine features as more attractive, especially when they themselves are ovulating and, thus (at least subconsciously) on the lookout for a male sex partner who'll produce fit offspring. When they're looking for a long-term partner, on the other hand, studies show that women tend to prefer men with more effeminate features, who have less testosterone and are likely to be more loyal partners and caring fathers. [How Women Pick Mates vs. Flings]
Explanation:
Answer:
Unfortunately, sandwiches are much riskier than we think they are. There is a microbiological risk in sandwich making that affects sandwich food safety. In reality, it is the ... Meaning more opportunity for cross-contamination.
Explanation:
Answer:
The function of the digestive system is digestion and absorption. Digestion is the breakdown of food into small molecules, which are then absorbed into the body. The digestive system is divided into two major parts: The digestive tract (alimentary canal) is a continuous tube with two openings: the mouth and the anus.
