Phosphorus is required for organisms to synthesize dna and phospholipids. in an ecosystem, phosphorus is transferred into the soil by the weathering of rocks. phosphorus is absorbed by plants, which are consumed by herbivores. carnivores obtain phosphorus through the consumption of herbivores. which is a process that transfers phosphorus between an abiotic system and a biotic system.

a , a plant absorbing phosphorus from the soil

b , weathering of rocks releases phosphorus into the soil

c , an herbivore consuming a plant

d , a carnivore consuming an herbivore

Ry was studying two populations of the same species of lizards. one population lived on an island and the other lived on the mainland. both populations were affected by a hurricane that hit the island and the mainland with equal force. a year later, henry was testing the gene frequency and saw a decrease in genetic variation in the island species, but not in the mainland species. which best describes a conclusion he might have reached? gene flow greatly affects small populations, but large populations can recover. genetic drift greatly affects small populations, but large populations can recover. gene flow greatly affects large populations, but small populations can recover. genetic drift greatly affects large populations, but small populations can recover.

In some plants, pointed leaves (p) are dominant over rounded leaves (p). a plant with a genotype of pp

What would be the result if crossing over did not happen during meiosis in humans? a. there would be less genetic variation in humans. b. parents would be more likely to look like their children. c. the human population could not reproduce. d. children would have more chromosomes.