Answer:
<h3>Most veins carry deoxygenated blood from tissues back to the heart ; exceptions are thw polmunary and umbilical veins,both of which carry oxygenated blood to the heart. It contrast to veins, arteries carry blood away from the heart. </h3>
Answer:
Slightly movable joints permit some movement but provide less stability than immovable joints. These joints can be structurally classified as cartilaginous joints, as bones are connected by cartilage at the joints. Cartilage is a tough, elastic connective tissue that helps to reduce friction between bones.
Answer:
b
Explanation:
he is developing before it happens
Answer:
yes. i agree. early puberty leads to early stress, depression and early sexual behavior.
Explanation:
For young people who begin puberty earlier than their peers, the transformation appears to be particularly fraught, especially for girls. Early-maturing girls are at increased risk of a range of psycho social problems including depression and early sexual behavior.The average age of a girl's first period in the United States and Europe was about 16 a century ago. Today, it's closer to 13.In boys, puberty begins between ages 9 and 14, on average, starting with growth of the sexual organs and wrapping up with facial hair and a deepened voice.
Karen Rudolph, PhD, at the University of Illinois at Urbana Champaign, and colleagues, followed more than 160 boys and girls for three years. They found that girls who matured earlier than their peers had increased rates of depression that persisted over the course of the study. They also found that while early-maturing boys initially had lower levels of depression than later-maturing boys, over time they showed signs of increased anxiety, negative self-image and interpersonal stress. By the end of the three-year study period, the boys' rates of depression were almost as high as those of the early-maturing girls (Development and Psychopathology, 2014).
Answer: Optic Disc
Explanation:Optic Disc is a portion of the eye,it can be seen as black spot on the eye,it doesn't contain rods. Optic disc is the point of exit for optic nerve.
The optic disc is also known as the optic nerve Head,it is made up of connective and elastic tissue, it is the passage to the nerve fibre bundles and retinal blood vessels it also maintain intra-ocular pressure against a gradient between the intra-ocular and extra-ocular spaces.
