Question

Answer the following:

a. Name the major site where RBCs are formed.

b. Which part of heart is responsible for initiating and maintaining its rhythmic

activity?

c. What is specific in the heart of crocodiles among reptilians?​

Answer 1

Explanation:

bone marrow

Red blood cells, most white blood cells, and platelets are produced in the bone marrow, the soft fatty tissue inside bone cavities. Two types of white blood cells, T and B cells (lymphocytes), are also produced in the lymph nodes and spleen, and T cells are produced and mature in the thymus gland.

Answer: (a) Bone marrow (b) SA Node (Sino Atrial Node) (c) Reptile have 3 chambered heart with an exception of crocodile which possess 4 chambered heart, due to the partial division of ventricle through a septum.

SA Node (Sino-Atrial Node) is responsible for initiating and maintaining its rhythmic activity.

please mark my answer as the brainlest answer

Answer 2

Answer:

a. Bone Marrow

b. Sino Atrial node

c. 4 chambers

I copied everything without much research work LOL .