Which statement describes the relationship between the lizard and the frog on the food web? [the tree is consumed by an insect, which is consumed by the frog and lizard. the frog and lizard are consumed by the snake and the snake is consumed by the hawk. the mayfly is consumed by the fish and the fish is consumed by the bear. the plants are consumed by the deer and bear. the deer is consumed by the wolf.] a.) heterotrophs compete for the same food source. b.) heterotrophs supply food for the autotrophs. c.) autotrophs and heterotrophs share the same food source. d.) autotrophs supply food for the heterotrophs.

Which macromolecules are polymers made of nucleotides (a) fatty acids (b) nucleic acids (c) carboxylic acids (d) amino acides

Researchers determine that the biodiversity in a woodland region is declining. they identify two major threats to the region's biodiversity, a method to address each threat, and the expected outcome of each method. this information is shown in the table. threat method number of species that benefit number of years to see benefit habitat fragmentation reforestation 450 8 introduced prey species biological augmentation 150 2 which statement is an accurate explanation of the information in the table? a. biological augmentation would benefit only a few species because it is typically not very effective. b. biological augmentation would take less time to be effective because it targets the majority of prey species. c. reforestation would take the longest time to be effective because trees take several years to grow. d. reforestation would not benefit many species because most forest species live on the ground.

Four different thermometers were used to measure the temperature of a sample of pure boiling water. the measurements are recorded in the table below. thermometer temperature reading 1 temperature reading 2 temperature reading 3 w 100.1°c 99.9°c 96.9°c x 100.4°c 102.3°c 101.4°c y 90.0°c 95.2°c 98.6°c z 90.8°c 90.6°c 90.7°c the actual boiling point of pure water is 100.0°c. what can be concluded from the data about the reliability and validity of the thermometers?