Photosynthesis is an example of

A. an exothermic reaction.

B. an endothermic reaction.

C. a reaction that gives off heat.

D. a reaction that emits energy.

Find the difference between 4.00_0.13

Leaves are green because they contain what green substance?

Disscuse 2 causes and 2 effects of deforestation.

5 facts about padre pio

Mendel first crossed true-breeding plants to produce a second generation, which were then allowed to self-pollinate to generate the offspring. How do we name these three generations?

Ocean-dwelling chemoheterotrophic bacteria that generate energy via aerobic respiration are dependent on the presence of photoautotrophs like cyanobacteria because:

Nucleotide are composed of phosphate group, a sugar, and a nitrogenous base. DNA is made up of long strands of nucleotide. which part if the above molecule can differ between nucleotide? A. the sugar B. the phosphate group C. the nitrogen group D.

2 atp molecules are needed to start A) the krebs cycle B) gyycolysis C) the electron transport chain D) none of the above

If earth is about 4.5 million years old which statement is true

What can happen to animal cells when placed in a hypotonic solution? Why?