Answer:
ONE-CELL-THICK LAYER OF FLATTENED CELLS
Explanation:
The circulatory system is lined by a simple squamous epithelium which is a one cell thick layer of flattened cells. It allows for passage of small molecules through the process of filtration and diffusion, The kind of epithelium is found in areas that require rapid diffusion of substances such as capillaries, alveoli, glomeruli of nephron. This epithelium is one celled to the basal lamina and contains flat cells.
Answer:
Photosynthesis makes the glucose that is used in cellular respiration to make ATP. The glucose is then turned back into carbon dioxide, which is used in photosynthesis. Without oxygen, much less ATP would be produced.
Answer:
The liver have a hepatic portal vein and a hepatic vein for blood flow and transport of nutrients.
Explanation:
Hepatic portal vein is also known as portal vein that carries blood from the organs (gastrointestinal tract, pancreas and gallbladder) to the liver. The nutrients are also transfer by the hepatic portal vein.
Hepatic vein: This vein carry deoxygenated blood into the inferior vena cava from the liver. Total three hepatic veins brings deoxygenated blood from right, left and middle part of liver.
It determines how the population is decreasing and increasing.
Answer:
- Radial symmetry is advantageous because sessile animals can "sit down", take food, or sense harmful environmental conditions from different directions.
- Bilateral symmetry allows motile animals to move straight forward.
- The major evolutionary advantages of bilateral symmetry include cephalization, the formation of a head and tail area and a more directional motion.
Explanation:
Radial symmetry is advantageous for sessile organisms since it enables the uniform distribution of the sensory receptors around the body. In consequence, sessile organisms can react to environmental stimuli from every direction. On the other hand, bilateral symmetry allows motile organisms the arrangement of a specialized nervous system from the anterior end of the organism (i.e., the 'head'). Moreover, another important advantage of bilateral symmetry is the ability to equalize environmental pressures on both sides of the body, thereby enabling a rectilinear motion.
