The Klinefelter syndrome is a consequence of non-disjunction mutation. It is simply understood as having an extra X chromosome for males. The Klinefelter syndrome can be a result during cell divisions either of meiotic or mitotic cell divisions. There is an imbalance of the division of cell and this resulting to Klinefelter syndrome. When a male was born, it usually has one X and one Y chromosome but in this case, a male can have one or more X chromosome. This syndrome common leads for the males having unusual physical attributes.
Answer:
There are three main types of blood vessels:
1)Artery ---
i) It is a blood vessel having a thick wall.
ii) It carries blood from the heart to different parts of the body.
iii) On regulatory demand of the body it can dilate or constrict.
iv) It doesn't contain any valve.
v) All arteries carry oxygenated blood except the pulmonary artery.
2)Vein ---
i) It is a blood vessel having a thin wall.
ii) It brings blood from different parts to the heart.
iii) It can't dilate or constrict under normal conditions.
iv) It contains valves that allow the blood to flow in one direction towards the heart.
v) All veins carry deoxygenated blood except the pulmonary vein.
3)Capillary ---
i) It is a very narrow blood vessel that has very thin walls.
ii) It forms a network throughout the body in all living cells connecting arteries to veins.
iii) It can dilate or constrict according to the requirement of tissue.
iv) It doesn't have any valve.
v) It contains mixed blood as it connects arteries and veins
<span>the crowds of people that are attracted can disrupt the ecosystem</span>
Answer:
HOMEOSTASIS.
Explanation:
The nervous and endocrine system exert the ultimate control over homeostasis because they coordinate the functions of the body system.Refulation of body temperature,blood pressure,pH,and gluclose concentration are for examples of how the body maintains homeostasis. The answer should be *homoestasis*
Answer: WAGGLE DANCE is the dance that provides honey bees information about both the direction and distance of food.
Explanation:
Honey bees are flying insects that helps in the pollination of plants as they collect nectar and pollen from plants for food. As the name implies, they are known for the production of honey.
The honey bee dance helps in social organization of the honey-bees which is established by the living of all individuals within the colony and they show the mutual cooperation among the members of the colony, and exhibit the overlapping generations.
WAGGLE DANCE is the dance that provides honey bees information about both the direction and distance of food for the colony. It consists of two phases:
- the WAGGLE phase and
- return phase which occurs in a regular alteration pattern by foragers. It involves running through a small figure-eight pattern.