Which cells have a cell wall and a ncleus

Which of the following is a nucleotide found in DNA? a deoxyribose + phosphate group + uracil b ribose + phosphate group + thymine c deoxyribose + phosphate group + cytosine d ribose + phosphate group + uracil

Balance the equation: Cd + H2SO4→ __CdSO4 + H2 a. 1 b. 2 c. 3 d. 4

How does eating contribute to the flow of energy in an ecosystem? A) Carbon bonds in food are broken, which releases energy. B) Weathering breaks down rocks into chemicals like sulfur and nitrogen.

If an area of the ocean experienced a great loss of phytoplankton, what could you infer about what would happen there? A the secondary consumers would start to decrease, but at a rate less than the primary consumers.

Which statement in not true about weathering in deserts

How do plants obtain carbon atoms?. A. from carbon in the soil. B. from microorganisms that live in soil. C. from carbon dioxide in the atmosphere. D. from animals that feed on the plants

What kind of change occurs when ice becomes liquid water? O melting reaction O chemical change O physical change and sses of O substance change ergy, and sses of cules

Which of these provides evidence from developmental biology of a shared evolutionary history? A. The skeletal structures of a leg of a horse and a flipper of a whale are very similar. B.

Which gas supplies the energy for storms

Photosynthesis is an example of an exothermic reaction. an endothermic reaction. a reaction that gives off heat. a reaction that emits energy.