Answer:
 Embryology: the study of similarities in embryos of organisms to find common connections 
Developmental biology:  the study of life cycles of organisms to find common
Molecular biology: the analysis and comparison of DNA to better understand relationships between species 
comparative anatomy: the study of the anatomy of an organism to explain evolutionary similarity
Explanation:
Embryology can be described as the branch of biology in  which studies about the sex cells, the process of fertilization and the development of the fetus or embryo are made. The similarities between the embryos show evolutionary history among different organisms.
Developmental biology can be described as the branch of biology in which studies are made about the processes of growth and developmental procedures about organisms. Organisms belonging to different groups can also show developmental similarities if they have a common ancestor.
Molecular biology is the branch of biology which is related to the study of life on molecular level. At this level, similarities between the genome of organisms can be checked for evolutionary histories. 
Comparative anatomy: It is the branch of biology in which organisms are studies based on the similarities and differences in their structures.
 
        
             
        
        
        
Answer:
A.  passive transport by diffusion
Explanation:
Diffusion and osmosis are both types of passive transport. They do not require energy. Diffusion is the general term for the process. Osmosis is the diffusion of water molecules.
Many small, uncharged molecules can cross the cell membrane by diffusion. Oxygen and carbon dioxide are examples of two small molecules that pass the cell membrane by passive transport.
Larger or charged molecules require energy to cross the cell membrane. This is achieved by active transport. 
 
        
             
        
        
        
The answer is OCULOMOTOR NERVE.
<span>The oculomotor nerves are the motor nerves of the eye. In other words, they innervate the various ocular muscles and order them, if necessary, to contract to move the eyes, the upper eyelid ... There are three pairs of oculomotor nerves: 
*The common oculomotor nerves.
*The pathological oculomotor nerves.
*The external oculomotor nerves.
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The answer could not be optic nerve because damages to this nerve cause cecity.
        
                    
             
        
        
        
Answer:w
when a gas is compressed, its' volume decreases. 
Explanation:
When a gas is compressed, its volume usually decreases which also causes an increase in temperature. The pressure in addition increases which causes and increase of gas molecules. The molecules collide more frequently which is the reason why temperature will increase. 
 
        
             
        
        
        
Muscles are required in breathing, talking, running, walking, and any body movement. Actin and myosins are protein filaments present in muscle cells that help to contract and relax or change the shape of muscles. Muscles are responsible for the movement or motion of organisms. Joints are the connection between two or more bones. Most joints are mobile.
Muscle strength is determined by several factors. Some of those are the physical shape, size, and innervation of the muscles.  
Weak contraction
- Potassium accumulates in the sarcoplasm. 
- Contracted lower sarcoplasm pH.
- Begin contraction with muscle already 50%. 
- The circular arrangement of muscle fascicles. 
Stronger contraction 
- Increase in muscle belly circumference. 
- A lesser proportion of motor neurons to muscle fibers. 
- Increased recruitment. 
- Increased stimulus frequency.