LEAP 2025 Biology Practice Test with Complete Solutions

LEAP 2025 Biology Practice Test with Complete Solutions Which claim is supported by the information in Graph 1 and Graph 2? The number of eggs and the mass of the eggs produced by sockeye slamon depend on the amoun of matter stored by the female Develop a model that can be used to explain the stages of growth and development that result in a salmon fry. 1. Sperm fertilizes egg 2. Genetic material is evenly divided 3. Embryo changes from two to four cells 4. Cell differentiate 5. Specialized tissues and organs are prodcued Based on the information in Graph 3, chum salmon fry are likely to eat prey that is__________ prey eaten by the pink salmon fry and______________prey eaten by the coho salmon fry. This is because as a salmon's size increases, its matter intake needs_____________ 1. larger than 2. smaller than 3. increase Which statement best explains how salmon obtain and use matter to support their biological functions? Salmon break bonds in complex food molecules to release the carbon, oxygen, and hydrogen atoms needed for the formation of other molecules Which claim is best supported by the information about scales and feathers? changes in placodes over time allowed for the development of different structures Which statement best explains what caused some theropods to develop feathers? Which information is evidence that best supports the answer to Part A? a mutation in DNA affected the types of proteins produced by placodes the DNA of mdoern-day vertabrates codes for the proteins in placodes Which evidence best supports the claim that birds evolved from dinosaurs? the same sequences are found in the genetic information of theropods and birds Mammals did not descend directly from dinosaurs, but mammals embryos have placodes, as show in Figure 3. Mammals and dinosaurs descended from a common ancestor. This ancestor must have had placodes and passed them down through generations. Figure 2 shows that dinosaurs and mammals have a common ancestor. Which statement best explains the results shown in Table 1? trees from site 1 grow less rapidly than trees from ste 2 because the trees have slower rates of cellular respiration at site 1 than at site 2 Which claim about the transfer of energy in the tonewood ecosystem is best supported by data? more energy is available to transer from the trophic level occupied by the red deer at lower elevations than from the same trophic level