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Drag the labels to complete each of the sentences that discuss the migration of immune cells from the vasculature to injured tissue: epithelial When tissue is damaged through trauma or chemicals, signals are released from the injured cells. These chemicals trigger the events leading to the movement of white blood cells from the vasculature into the damaged tissue. Infection Several of the released chemicals are from the vasculature. Others are chemotactic factors that attract phagocytic cells to the site of injury. Diapedesis Once they initiate changes in proteins, they can eat and destroy invading substances, thus cleaning up the tissue. Microbes and other harmful substances can be eliminated through phagocytosis. Inflammation
Adi S.
Drag the labels to complete each of the sentences that describe the progression of malaria. Malaria is caused by protozoans in the genus Plasmodium, with five species largely responsible for the disease in humans. The life cycle of the parasite can be divided into two stages; the ________ phase that takes place in humans and the ________ phase, which takes place in the ________. The asexual phase begins when the human is bitten by an Anopheles mosquito, injecting the ________ into the capillaries along with an anticoagulant. The cells circulate and enter the liver where they undergo ________; a form of asexual division producing numerous ________ within the hepatocytes. When the liver cell ruptures, thousands of merozoites enter the circulation where they infect erythrocytes and convert to ________. Lysis of erythrocytes releases more merozoites, and this ________ phase is responsible for the synchronous symptoms seen in the infected host. The Plasmodium life cycle cannot continue in the human, and the oocyte pass back into the mosquito when it feeds on infected blood. mosquito Plasmodium sporozoites trophozoites erythrocytic sexual gametocytes merozoites lymphocytic schizogony asexual oocyte
Complete the following sentences to describe the stages of eudicot development. Then, place the sentences in chronological order. Choices may be used more than once. Immediately after double fertilization, the small, densely packed cotyledons are visible. During the globular stage, the zygote begins to appear and rapid cell division takes place. The embryo consists of many parts. The hypocotyl is found at the tip and consists of a pair of small leaves. The hypocotyl contributes to stem development and gives rise to the shoot. The radicle below encloses and protects the root. During the torpedo stage, the endosperm divides repeatedly in different planes to form multicellular suspensor, which transfers nutrients. The embryo is also visible. The seed coat is established. The cells near the rear become the root, and the cells near the other end become the shoot.
Mj A.
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