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Questions in biology

📝 Answered - If a rocky island appeared out of the water from volcanic activity, what type of organism would most likely live there first? Select one: A. Pioneer trees B. Lichens and moss C. Fruit-bearing vines D. Tall shrubs

📝 Answered - How do you think the pointed beak of a woodpecker finch helps it get food?

📝 Answered - Which of the following is not an example of interactions between biotic and abiotic factors in an ecosystem? A. Flowers opening at dawn and closing at night B. Bears hibernating in winter C. Male elk fighting over a female D. Monarch butterflies migrating to Mexico for the winter

📝 Answered - If a population is in Hardy–Weinberg equilibrium, when is the number of heterozygotes at its maximum? A. When the frequency of dominant alleles is more than the frequency of recessive alleles. B. When the frequency of dominant alleles is equal to the frequency of recessive alleles. C. When the frequency of dominant alleles is less than the frequency of recessive alleles.

📝 Answered - 4. Which pathway represents the flow of electrons during photosynthesis? A. \(\text{H}_2\text{O} \rightarrow \text{Photosystem I} \rightarrow \text{Photosystem II}\) B. \(\text{O}_2 \rightarrow \text{ADP} \rightarrow \text{Calvin Cycle}\) C. \(\text{Photosystem I} \rightarrow \text{Calvin Cycle} \rightarrow \text{NADP}\) D. \(\text{H}_2\text{O} \rightarrow \text{NADP} \rightarrow \text{Calvin Cycle}\) 5. Which process does NOT release energy from glucose? A. Glycolysis B. Photosynthesis C. Fermentation D. Cellular respiration

📝 Answered - Which of the following statements about coral reef preservation efforts is true? A. In order to preserve coral reefs, all aquarium trade in coral reef organisms must end. B. Legislation has had no impact on coral reef preservation efforts. C. Various preservation methods have had some positive impact on coral reef preservation. D. Education of fishermen has eliminated all coral reef loss.

📝 Answered - What is the main function of the circulatory system in multicellular organisms? A. To bring oxygen into the lungs B. To put carbon dioxide into all blood vessels C. To expel waste products from the body D. To transport materials throughout the body

📝 Answered - What kind of pyramid of numbers and pyramid of biomass will be formed in a forest with 75 tigers, 5,000 deer, and 100,000 trees? A. Both pyramids will be upright. B. Both pyramids will be inverted. C. No pyramid can be formed.

📝 Answered - All of the reactions of glucose oxidation that follow glycolysis, and involve the transfer of electrons to their final acceptor, take place in eukaryotic cells in the ___________. A. chloroplasts B. nucleus C. mitochondria D. plasma membrane

📝 Answered - Which scenario most likely reveals an organism lacking the proper reactants for cellular respiration? A. A tree responding to a fungal infection B. A bacteria undergoing cell division C. An exhausted bear D. A failed hunting attempt by a cougar E. A migrating butterfly