HRS - Ask. Learn. Share Knowledge. Logo

Questions in biology

[Done] Which statement best describes the relationship between photosynthesis and cellular respiration? A. Photosynthesis removes carbon from the atmosphere, and cellular respiration releases carbon back into the atmosphere. B. Photosynthesis is part of the carbon cycle, and cellular respiration is not. C. Only plants perform photosynthesis, and only animals perform cellular respiration. D. Photosynthesis releases carbon into the atmosphere, and cellular respiration removes carbon from the atmosphere.

[Done] Match the synovial joint structure to its description: Joint capsule Synovial membrane Articular cartilage Sheet of connective tissue that surrounds joint Inner lining of joint capsule that produces synovial fluid Hyaline cartilage that coats ends of bones

[Done] Ricin is a protein produced by the castor bean plant. When ingested by animals, this protein binds to the ribosomal RNA (rRNA). The change causes the rRNA to become nonfunctional. What will be the overall effect of ricin on cell function? Predict how the ricin molecule affects the rRNA.

[Done] Suppose you add solute molecules that are highly concentrated to water, and diffusion of the solute occurs very quickly. What will happen to the distribution of the solute after a long time? A. The solute will disappear within the solution. B. Nothing will happen. C. The solute concentration will be the same everywhere. D. The solute concentration will be high in a local area.

[Done] List three characteristics of enzymes.

[Done] FORMATIVE ASSESSMENT Listening - Listen to the following amazing facts read out by your teacher and answer the questions. 1. The bee hummingbird is the smallest bird in the world. It measures only 2.25 inches. 2. Hummingbirds have the smallest number of feathers of any bird species in the world. 3. A hummingbird is the only bird that can fly backward too. Its maximum forward flight speed is 20 miles per hour. These birds can reach up to 60 miles per hour in a dive. 4. Hummingbirds lay the smallest eggs of all birds. They measure less than 1/2 inch in length. 5. At rest, a hummingbird takes an average of 250 breaths per minute. Their breathing rate increases when they are flying. 6. A hummingbird egg is smaller than a jelly bean! 7. A hummingbird flaps its wings 20 to 80 times per second! 8. Hummingbirds can see and hear better than we can but they have little to no sense of smell. (a) What is the smallest bird in the world? (b) Where is the bee hummingbird found? (c) How many breaths does a hummingbird take per minute on average? (d) Can hummingbirds see and hear better than humans? Speaking - Give a talk to the class on the state bird of Maharashtra. Activity - Make a dictionary of birds. Find out about as many birds as you can and define/describe them in a diary in alphabetical order.

[Done] Explain why there is greater biodiversity in the littoral zone than there is in the benthic zone.

[Done] Which organisms transform nitrogen to a form that is useful to plants? A. bacteria B. animals C. fungi D. humans

[Done] Long line fishing and drift nets are hazardous to fish and other marine animals. Please select the best answer from the choices provided.

[Done] 2.2 Tabulate TWO differences between Lamarckism and Darwinism. 2.3 Explain why Lamarck's theory is not accepted.