1- C
2-A
3-C
4-D
5-A (not sure)
6-C
7-C
8-C
9-A
10-D
Answer:
B. Systemic blood pressure will be lowered.
Explanation:
Glomerular capillaries serve to provide a large surface area for glomerular filtration as they are long and extensive. Mesangial cells serve to regulate the available surface area for the process of filtration. When mesangial cells are relaxed, the maximal surface area is available. This results in a very high rate of glomerular filtration. On the other hand, contraction of mesangial cells reduces the available surface area, and thereby, reduces the rate of glomerular filtration.
Systemic blood pressure is the blood pressure in the blood vessels of the systemic pathway. The contraction of heart chambers during the pumping of blood is the source of systemic blood pressure. Therefore, the contraction of glomerular mesangial cells would not lower the systemic blood pressure.
Inertia is the ability for an object to stay at rest. Since a bowling ball is heavier, its inertia makes it hard to lift and therefore harder to roll than a tennis ball.
Answer:
Earthworm - have a coelom and a closed circulatory system.
Scallops or clams - has a mantle and an open circulatory system.
Starfish - has an endoskeleton made of calcium-rich plates.
Spider - exhibits the phenomenon of molting.
Explanation:
Earthworm belongs to Phylum Annelida. They are metamerically segmented, triploblastic and bilaterally symmetrical. They have a closed circulatory system and a coelom (true body cavity).
Scallops or clams belong to Phylum Mollusca, the second largest animal phylum. They are coelomate, triploblastic, bilaterally symmetrical organisms having an open circulatory system. They have a calcareous shell covered body with a distinct head, muscular foot, visceral hump and a mantle (soft and spongy layer of skin) over the hump.
Starfish belongs to Phylum Echinodermata, which consists of exclusively free-living marine organisms. They have an endoskeleton made up of calcium carbonate structures. They are coelomate, triploblastic and have a water vascular system that is used for respiration, locomotion, food capture and transport.
Spiders belong to Phylum Arthropoda. They have chitinous covered segmented bodies, jointed legs and exoskeletons (hard external shells). Arthropods periodically shed their exoskeletons or shells in order to grow, this process is called molting. They are coelomate, triploblastic, bilaterally symmetrical organisms having an open circulatory system.
It can replace, repair or be a new type of cell to benefit the host.
Cellular differentiation occurs throughout the cell development of a multi-cellular organism. It occurs when the cell changes from a simply zygote into a complex system of tissues and cell types.
<span>Stems cells are cells which have the potential to develop into many different cell types in the body during early life and growth. Stem cells serve as internal repair system in many tissues. When stem cells divide while undergoing cell differentiation, it can either retain being a stem cell or become another type of cell like muscle cell, brain cell, or red blood cell.<span> </span></span>