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Questions in biology

📝 Answered - Match the following: Column I | Column II ---------------|------------- a. Tongue | (i) Mucous b. Gall bladder | (ii) Villi c. Stomach | (iii) Taste buds d. Small intestine | (iv) Bile juice

📝 Answered - Fill in the five plant life cycle stages in the correct order. Use the word bank at the bottom to help you. Word bank: germination pollination flowering seed dispersal fertilisation

📝 Answered - Which of the following is cycled in the cyclic variation of the light reactions? A. protons B. NADPH C. ribulose bisphosphate D. ATP E. electrons

📝 Answered - Which trait is determined by genetics alone? A. skin color B. athletic ability C. blood type D. big muscles

📝 Answered - A scientist is trying to determine how closely related a moth species (Species Z) is to four other moth species (Species A, B, C, and D). He examined the DNA of each species and compared it to the study subject. He then created this table. | Species | # of genetic differences | | :-------- | :----------------------- | | Species A | 12 | | Species B | 3 | | Species C | 14 | | Species D | 28 | Which species is most closely related to the moth species (Species Z)? A. species A B. species B C. species C D. species D

📝 Answered - Which statement correctly differentiates Archaea from Bacteria? A. Both contain peptidoglycan in cell walls B. Archaea are more closely related to bacteria than to eukaryotes C. Archaea have unique membrane lipids and lack peptidoglycan D. Bacteria survive in extreme environments, Archaea do not

📝 Answered - What structure is formed by the reaction center, light-harvesting complexes, and primary electron acceptors that cluster, and is located in the thylakoid membrane? A. the photosystem B. the electron transport chain C. NADP+ reductase D. the fluorescence center E. ATP synthase

📝 Answered - A disorder of carbohydrate metabolism that is characterized by high concentrations of sugar in the blood and results from insufficient production or utilization of insulin is called:

📝 Answered - A. Write True or False: 1. Insects have six legs. 2. Black ants live in rotten wood. 3. A spider is an insect. 4. Lice suck blood. B. Fill in the blanks: 1. _____ is a black and yellow flying insect that can sting. 2. A _____ catches a prey in its web. 3. _____ carry disease-causing germs to our food. 4. _____ is an animal that eats ants. 5. _____ live in the soil. 6. A spider has _____ legs. 7. _____ have six legs. 8. _____ means to move slowly on one's feet. C. Name the following: 1. Any two crawling animals that are found under dead leaves, rocks, or on damp ground. 2. Any two enemies of crawling animals. 3. Any two crawling animals. 4. Any two animals that suck blood on the bodies of humans and animals. 5. Any two insects that crawl as well as fly.

📝 Answered - 1. It is an opening at the end of the digestive system from which feces exit the body. 2. It is a small sac located near the start of the large intestine. 3. It is a long tube between the mouth and the stomach. It uses rhythmic muscle movements (called peristalsis) to force food from the throat into the stomach. 4. It is a small, sac-like organ located by the duodenum. It stores and releases bile (a digestive chemical which is produced in the liver) into the small intestine. 5. It is the long, wide tube that food goes through after it goes through the small intestine. 6. It is a large organ located above and in front of the stomach. It filters toxins from the blood and makes bile (which breaks down fats) and some blood proteins. 7. It is the first part of the digestive system, where food enters the body. Chewing and salivary enzymes in the mouth are the beginning of the digestive process (breaking down the food). 8. It is an enzyme-producing gland located below the stomach and above the intestines. Enzymes from the pancreas help in the digestion of carbohydrates, fats, and proteins in the small intestine. 9. It is the lower part of the large intestine, where feces are stored before they are excreted from the body. 10. It is the long, thin winding tube where food goes through after it leaves the stomach. 11. It is a sack-like, muscular organ that is attached to the esophagus. When food enters the stomach, it is churned in an acid bath.