Explanation:
The pulmonary valve (sometimes referred to as the pulmonic valve) is a valve of the heart that lies between the right ventricle and the pulmonary artery and has three cusps. It is one of the four valves of the heart and one of the two semilunar valves, the other being the aortic valve. Similar to the aortic valve, the pulmonary valve opens in ventricular systole, when the pressure in the right ventricle rises above the pressure in the pulmonary artery. At the end of ventricular systole, when the pressure in the right ventricle falls rapidly, the pressure in the pulmonary artery will close the pulmonary valve.
<h2>c) option is correct </h2>
Explanation:
- Each synovial joint has a fibrous capsule surrounding the joint, which helps hold the bones together, along with the ligaments (which join bone to bone) and tendons (which join muscle to bone)
- The joint capsule is lined by the synovial membrane, which manufactures the synovial fluid
- The synovial fluid is located within the joint cavity of a synovial joint and has three primary functions: Lubrication
, nutrient distribution and shock absorption
The correct answer is a sponge.
<span>A sponge (Porifera) is a multicellular organism which consists of two layers of cells and the mesophyll between them. Those cells are unspecialized and can transform into other types. The body of sponges is full of pores and channels which allow the water to circulate and thus to obtain food and oxygen.</span>
Answer:
24 hours and 37 minutes
Explanation:
At Mars' orbital speed of 24 km per second, it takes the planet 24 hours and 37 minutes to complete one rotation. That is just a little more than a day on Earth.
