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Questions in biology

[Free] Sneha was studying bacteria. She found that bacteria do not have a nucleus. Toshima said that amoeba has a nucleus. Based on their conservation, which of the following statement is true? (i) Amoeba is eukaryotic and bacteria are prokaryotic. (ii) Amoeba and bacteria are prokaryotic. (iii) Amoeba is prokaryotic and bacteria are eukaryotic. (iv) Amoeba and bacteria are eukaryotic.

[Free] Which of the following organs is not an accessory organ of the digestive system? (A) Pancreas (B) Spleen (C) Tongue (D) Liver

[Free] Light waves are first transmitted through the ______ at the front opening called the ______ before shining onto the retina. Options: 1. cornea; pupil 2. sclera; lens 3. lens; sclera 4. pupil; cornea

[Free] A large white blood cell that removes bacteria, foreign particles, and dead cells is known as a(n) Select one: A. erythroblast B. erythrocyte C. neutrophil D. macrophage E. megakaryocyte

[Free] Which of the following best defines gene flow? A. the sum of all genetic traits in a population's individuals at a given time B. any movement of genes from one population to another C. any movement of organisms from one environment to another D. the random change in the frequency of an allele in a population

[Free] A group of cells performing a similar function is a A. molecule. B. tissue. C. organ. D. organ system.

[Free] Table 1. The major digestive enzymes and their end products. | ENZYMES | Produced where? (pancreas, small intestine lining, stomach lining, salivary glands) | Active where? (mouth, stomach, small intestine) | END PRODUCT (disaccharides, smaller polypeptides, amino acids, fatty acids) | |---------------------|----------------------------------------------------------------------------------|------------------------------------------------|----------------------------------------------------------------------------| | Carbohydrate Digestion | | | | | Salivary amylase | Salivary glands | 1.) | 2.) | | Pancreatic amylase | 3.) | 4.) | Disaccharides | | Protein Digestion | | | | | Pepsin | Stomach lining | 5.) | 6.) | | Carboxypeptidase | 7.) | 8.) | Amino acids | | Fat Digestion | | | | | Lipase | 9.) | Small intestine | 10.) |

[Free] Which of the following organs is not an accessory organ of the digestive system? (A) Gallbladder (B) Brain (C) Liver (D) Pancreas

[Free] 7. Which level includes all ecosystems on Earth? A. Biosphere B. Population C. Community D. Organism 8. A group of the same species living in one area is a: A. Community B. Population C. Habitat D. Biosphere 9. Metals are usually: A. Poor conductors of heat B. Brittle C. Good conductors of electricity

[Free] Use what you have learned in this lab along with the Internet (as needed) to answer the following questions. What are the preferred foods of tiger sharks? List of food items that may include some of the preferred foods: snakes lobsters clams marine birds crabs scallops ostriches squids small sharks rays marine mammals plankton What characteristics do the "preferred food items" you chose have in common? Think and make notes about this so you can answer the postlab.