Conservationists to restore ecosystems. which activity will positively affect the abiotic conditions of an ecosystem? keeping lakes and rivers free of pollution. planting new trees to provide food for animals. monitoring the ecosystem for bacterial pathogens that can cause illness. mating endangered animals in captivity and restoring them to their natural habitat.

Answers to mastering biology drag the labels to their appropriate locations to complete the punnett squares for morgan's reciprocal cross. drag blue labels onto the blue targets to indicate the genotypes of the parents and offspring. drag pink labels onto the pink targets to indicate the genetic makeup of the gametes (sperm and egg). labels can be used once, more than once, or not at all. hints