Answer the following question given this paragraph: Clubmosses are so named because they can look similar to mosses ( Figure below ). Clubmosses are not true mosses, though, because they have vascular tissue. The "club" part of the name comes from club-like clusters of sporangia found on the plants. One type of clubmoss is called the "resurrection plant" because it shrivels and turns brown when it dries out but then quickly turns green when watered again. Q: Clubmosses are not true mosses, though, because they have what? Choices: - smooth tissue - cambrium - hydrothermal tissue - vascular tissue A:
vascular tissue
(Question)
Answer the following question given this paragraph: Hemoglobin is the iron-containing oxygen-transport protein in the red blood cells of all vertebrates. The hemoglobin molecule is an assembly of four globular protein subunits, each tightly associated with a non-protein heme group. The heme group binds to the iron ion. The most common hemoglobin is hemoglobin A, a tetramer consisting of two alpha and two beta subunits, denoted as 22. Q: What is the name of the iron-containing oxygen-transport protein in the red blood cells of all vertebrates? Choices: - plasma - platelet - ferric acid - hemoglobin A:
(Answer)
hemoglobin
Ques: Answer the following question given this paragraph: Evasion of the Immune System by Pathogens It is important to keep in mind that although the immune system has evolved to be able to control many pathogens, pathogens themselves have evolved ways to evade the immune response. An example already mentioned is in Mycobactrium tuberculosis, which has evolved a complex cell wall that is resistant to the digestive enzymes of the macrophages that ingest them, and thus persists in the host, causing the chronic disease tuberculosis. This section briefly summarizes other ways in which pathogens can "outwit" immune responses. But keep in mind, although it seems as if pathogens have a will of their own, they do not. All of these evasive "strategies" arose strictly by evolution, driven by selection. Bacteria sometimes evade immune responses because they exist in multiple strains, such as different groups of Staphylococcus aureus. aureus is commonly found in minor skin infections, such as boils, and some healthy people harbor it in their nose. One small group of strains of this bacterium, however, called methicillin-resistant Staphylococcus aureus, has become resistant to multiple antibiotics and is essentially untreatable. Different bacterial strains differ in the antigens on their surfaces. The immune response against one strain (antigen) does not affect the other; thus, the species survives. Another method of immune evasion is mutation. Because viruses' surface molecules mutate continuously, viruses like influenza change enough each year that the flu vaccine for one year may not protect against the flu common to the next. New vaccine formulations must be derived for each flu season. Genetic recombinationthe combining of gene segments from two different pathogensis an efficient form of immune evasion. For example, the influenza virus contains gene segments that can recombine when two different viruses infect the same cell. Recombination between human and pig influenza viruses led to the 2010 H1N1 swine flu outbreak. Pathogens can produce immunosuppressive molecules that... Q: Bacteria may become untreatable if they develop what in response to multiple antibiotics? Choices: - affinity - weakness - acceptance - resistance A:
Ans: resistance
(Q).
Answer the following question given this paragraph: Fungi are a kingdom in the domain Eukarya that includes molds, mushrooms, and yeasts. Most fungi are multicellular. They are unique in having cell walls made of chitin. Q: Fungi are unique in having cell walls made of what? Choices: - prokaryotic - Protein - lectin - chitin A:
(A).
chitin
Ques:Answer the following question given this paragraph: Figure 35.29 Spinal nerves contain both sensory and motor axons. The somas of sensory neurons are located in dorsal root ganglia. The somas of motor neurons are found in the ventral portion of the gray matter of the spinal cord. Q: Where are the somas of sensory neurons located in the spinal cord? Choices: - frontal root ganglia - penetration root ganglia - frontal head ganglia - dorsal root ganglia A:

Ans:dorsal root ganglia
Question: Answer the following question given this paragraph: Sugars are small, simple carbohydrates. They are found in foods such as milk and fruit. Sugars in foods such as these are broken down by your digestive system to glucose, the simplest of all sugars. Glucose is taken up by cells for energy. Q: What are sugars broken down into in your digestive system? Choices: - starch - insulin - nicotine - glucose A:
Answer:
glucose