Aphids are eating jan’s peace roses. she wants to test some household chemicals to see if they will kill the aphids. she used bleach, ammonia, and dishwashing liquid in equal amounts. she will evaluate the aphid population after one week to see which chemical killed the most aphids. which is the independent variable? a. number of roses on the plant b. kinds of chemicals used. c. number of aphids killed. d. the kind of rose

Simulating adaptations in a species in this activity, you will discuss in detail the adaptations in a species of rain forest plants. you will build a simulation that explains the changes in the traits of the plant population over 10 years. you will also establish a scientific explanation to justify the changes in the traits of the population, * time to complete: 1-2 hours part a an organism's adaptations are specific to its native environment. an organism that lives in a coniferous forest will have different adaptations compared to an animal that lives in a tropical rain forest. the following graphs show the temperature and precipitation throughout the year for two different forests: a coniferous forest in canada, and a tropical rain forest in belize. evaluate the graphs, and then explain why plants from these two ecosystems will have different adaptations. in your answer, explain the survival challenges that plants face in these two environments.

Twind is considered to be an abiotic factor because it.?

When an object is moving away from you while still making a sound, the pitch of the sound is perceived to a. lower b. unchanged c. fluctuating d. higher