In the winter, many plants lose their leaves and seem to stop growing. in the spring, these plants make leaf buds and begin to grow again. which is a signal that causes some plants to form leaf buds in the spring? a) dry soil b) cloudy skies c) strong winds d) warm temperatures

Iron reacts with oxygen to produce iron oxide (rust). this reaction is represented in an equation as 4fe + xo2 → 2fe2o3. identify the value of x that will balance the equation.

Use the drop down menus to match each example to the fossil topic discussed then to show how the fossil record gives evidence of evolution

How is the national wildlife refuge system similar to the pacific region coastal program? a. both programs are concerned with providing habitats for wildlife b. both programs are primarily concerned with preserving fish species c. both programs have set aside 150 million acres of land d. both programs are under the u. s. fish and wildlife service