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Questions in biology

[Jawaban] Which of the following explains the role of fruit bats as pictured in the rainforest food web shown above? [Rainforest Food Web image with: jaguar, python, parrot, chimpanzee, fruit bat, frog, banana, insects, tree, fungi, slime molds] A. They are heterotrophs that depend on producers or other consumers for food. B. They are saprotrophs that recycle organic waste into food. C. They are autotrophs that use organic materials and sunlight to make food. D. They are detritivores that rely on dead plant matter for food.

[Jawaban] Sleep is a universal biological need. Please select the best answer from the choices provided. A. True B. False

[Jawaban] Which type of immune response may reduce the amount of iron available for microbes? A. Acute inflammation B. Chronic inflammation C. Fever D. Crisis phase

[Jawaban] Evolution occurs at the individual level rather than the population level. A. True B. False

[Jawaban] Part C What percentage of sheep had a body height of 1.2 meters or more 30 years ago? How does it differ from the present data? Does this data support your argument regarding the type of selection occurring? Part D Submit height data from 200 female sheep during both years but didn't notice a significant

[Jawaban] Which is a series of tunnels that receives, sorts, and packages substances to be delivered to other organelles or out to the membrane using small sack structures called vesicles? A. golgi apparatus B. phospholipid bilayer C. chloroplast D. endoplasmic reticulum (ER)

[Jawaban] The principle of univariance refers to the fact that A. an infinite set of different wavelength-intensity combinations can elicit the same response from a single type of photoreceptor B. we have three types of cones in our visual system. C. an infinite number of colors all look the same D. we can determine the true color of objects despite the reflective light being very different

[Jawaban] 4) Fixed macrophages that are found in the liver are called A) Alveolar macrophages C) Peritoneal macrophages B) Microglial cells D) Kupffer's cells 15) Which of the following organisms has the ability to escape from a phagosome before it fuses with a lysosome? A) Shigella C) Plasmodium B) Chlamydia D) Leishmania 16) Complement proteins are numbered A) 1 to 6 B) 1 to 7 C) 1 to 8 D) 1 to 9 17) Some bacteria evade the complement system by means of their A) Endospores B) Flagella C) Cilia D) Capsules 18) Which of the following is NOT a physical form of defense for the respiratory and gastrointestinal tracts? A) Mucus B) Cilia C) Hairs D) Epidermis 9) What opsonizes, promotes inflammation, and punches holes in membranes of bacteria? A) The complement system B) Antimicrobial peptides C) Iron-binding proteins D) Interferons What do the activated macrophages secrete to further promote the inflammatory response? A) Prostaglandins B) Leukotrienes C) Cytokines D) Histamine

[Jawaban] Oncogenes are created by mutations in A. DNA repair genes B. Mitochondrial genes C. Proto-oncogenes D. Tumor suppressor genes

[Jawaban] A few years after a major oil spill, which area is most fragile in terms of its biodiversity? A. Benthic areas B. The polar waters C. The middle water D. Tropical areas