Answer:
-Linnaean Classification System: Classification of the Human Species.
-Biological scientists have worked to classify earth's organisms in a manner that would help us understand how both the present and the extinct species relate to each other.
<h2>Functions of spleen</h2>
Explanation:
The major functions of spleen besides filtering the blood of foreign materials and phagocytosis of old defective erythrocytes are:
- Initiate immune responses against infections by liberation of antigen and activation of lymphocytes (T and B cells)
- Secretes bactericidal agents which act against invading bacteria
- Secretes interleukins which promote the growth of lymphocytes or antibodies that act against pathogens
- Reservoir: Pools blood by storing thrombocytes, immature erythrocytes.
- Hematopoiesis: Blood cells like erythrocytes, lymphocytes and monocytes develop and mature in spleen especially during the early fetal life.
Answer:
D
Explanation:
Additional classes of steroids include:
Neurosteroids such as DHEA and allopregnanolone
Aminosteroid neuromuscular blocking agents such as pancuronium bromide
Answer: the correct options are A(oxygen) and E ( Nitrogen).
Explanation: As humans we are able to survive in the planet earth due to its atmospheric composition. The Earth's atmosphere is composed of
Nitrogen(78%) and oxygen (21%). Currently, scientist from NASA has discovered existence of water in Mars. The elements they would look out for on Mars to see if we, as humans, could ultimately survive there is Nitrogen and oxygen.