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Which group of organisms is believed to be among the earliest to evolve on Earth? A)...
The group of organisms humans belong to is relatively small. All living organisms share a common ancestor, as evidenced by the commonality of DNA and ribosomes. Humans are not a unique form of life. Our ability to learn about the natural world does provide us an advantage over many species, especially if we use this advantage wisely. Antibiotics are prevalent in bacteria and fungi, whereas other drugs are derived from plants. Humans are not the most common species on Earth....
Which of the following extremophiles might researchers most likely use as a model for the earliest organisms on Earth? A) a bacterium found on another planet or moon B) an archaean capable of surviving in the polar ice caps C) an anaerobic archaean species D) a bacterium that thrives in a highly acidic environment Answer: A please explain the reason
1. Among the following organisms, which organisms have sex chromosomes (XY)? A. lizard and alligator B. tortoise and turtle C. anemone fish D. flies and humans E. all of the above
1. Among the following organisms, which organisms have sex chromosomes (XY)? A. lizard and alligator B. tortoise and turtle C. anemone fish D. flies and humans E. all of the above 2. Among the following genes, which gene detects the ratio of autosomes to X chromosomes in flies? A. Sry B. Sxl C. Tra D. Dsx-M E. Dsx-F (Q3-6) The following are the various karyotypes we can observe among the organisms with the XY sex determination system. a. XYb. XXc....
Which of the following is believed to be the most common mental illness among the elderly? B. DepressionA. Anxiety C. Bipolar disorder D. Obsessive-compulsive disorder
Walking with Monsters Life Before Dinosaurs – Ep. 1 At 3:10 – What group is that? Why would you expect to see them at this point in the movie? Cnidaria, 530 million years ago the cambrian explosion. What is the first Super Predator on Earth? Why are they so successful? Anomalocaris, They are successful because of their eyes At 4:30 – What are the tube / vase looking objects in the background? Sponges, filter feeders. At 4:46 – What is...
8. Consider how the heavy elements that make up planets like the earth are formed. Which of the following is most likely to be true about the origin of Earth? Earth arose around a very ancient star (our sun) that had had plenty of time to synthesize heavy elements. Earth arose in a region of our galaxy where few earlier stars formed so that the hydrogen fuel for our sun was abundant. Earth arose in a region that was very...
Which group of organisms is most closely related to plants? A. green algae B. brown algae C. red algae D.slime mold Which group of plants lacks vascular tissue? A. mosses B. ferns C. cone-bearing plants D. grasses
Most of the organisms in which group are photosynthetic and
multicellular. (Pick only one).
Animalia
Plantae
Arachaea
Protista
Fungi
QUESTION 6 Most of the organisms in which group are photosynthetic and multicellular. Animalia Plantae Arachaea Protista Fungi
Anteaters (mammals) and chameleons (reptiles) both have long tongues with which to feed on insects. Based on tongue morphology, these organisms demonstrate an example of ___________, and would therefore be represented as a __________ group in a phylogeny? A. divergent evolution, monophyletic B. homology, paraphyletic C. convergent evolution, monophyletic D. homoplasty, polyphyletic