B? I don’t really remember when I learned that 3 weeks ago..
They are both ectothermic, but fish have gills, and reptiles have lungs.
They concluded that horses evolved with the emergence of grasslands and an increase of predators. The digits of their early Eocene ancestor evolved into hooves.
Hello, I figured that the question was missing its options so I went online to find them. Here they are:
All of the following are true of the thymus gland, except that:
A) activates B cells.
B) reaches its greatest relative size during the second year of life.
C) involutes after puberty.
D) produces T cells.
E) lies in the anterior mediastinum
Answer:
The correct answer is: A) activates B cells.
Explanation:
The thymus is a lymphatic organ that is located in the anterior superior mediastinum (a compartment in the thoracic cavity), in front of the heart, with the function to mature T cells (one of the types of lymphocytes, white blood cells very important for the functioning of the immune system).
The thymus is more active and bigger during childhood, when puberty hits it involutes and its functional tissue is replaced with adipose tissue (fat).
<u>B cells are not activated in the thymus, they mature in the bone marrow</u>.
The data on the territories of three groups of chimpanzees can be displayed using a heat map overlayed over the geographical map. The heat map would show the population sizes, and the boundary of the heat map would define the territories of the chimpanzees. This helps one in quick interpretation and analysis of the data. This method of visualising the data is called data visualisation.
