Answer:
The correct answer is option D. A and C.
Explanation:
Lymphoid tissue is the body part that is an essential part of the immune system that provides immune response against different infection or pathogens and protects from these foreign bodies. These tissues are present in all over the body that includes spleen, adenoids, tonsils, lymph nodes and other parts.
Lymphoid tissues or organs are the sites of the proliferation of the macrophages and lymphocytes. These structures also assist in furnishing surveillance points for lymphocytes and macrophages.  
Thus, the correct answer is option D. A and C.
 
        
             
        
        
        
A, B, & D.
Wetlands DO NOT increase the rate of extinction of mammals by creating a loss of habitat. Wetlands rather form a habitat for many organisms creating a rich microcosm of an ecosystem. 
Explanation:
Wetlands are land areas that are seasonally or permanently submerged in water. They include marshlands, estuaries, deltas, swamps, floodplains, and etcetera.  The plants within wetlands, such as mangrove slow down water runoff hence allowing settling down of, sediments and pollutants hence ‘cleaning’ the water. 
Due to this fact that wetlands slow water movement, these ecosystems are significant in reducing flooding by ‘storing’ flood water and releasing it slowly hence acting like flood controls. 
Learn More:
For more on wetlands check out;
brainly.com/question/12462555
brainly.com/question/1224667
#LearnWithBrainly
 
        
             
        
        
        
Answer:
Memory and learning - Cerebrum
General bodily arousal - Cerebellum
Complex mental processes - Cerebral cortex
Connects two halves of brain - Cerebrum
Relax, dream, sleep - Hypothalamus
maintain homeostasis - pons
Regulates body circulation - Medulla
Emotions - Cerebrum
Tells senses - Cerebrum
tells nervous system - Cerebellum
Explanation:
Cerebrum is the largest part of the brain which controls emotion and senses of the body. It controls information of the body. Medulla Oblongata is the part of the brain which is just near the spinal cord. It regulates blood circulation. Hypothalamus is the part of brain which regulates sleep wake cycle of a person.