Any reactions that give off more energy that it takes to get the reaction started?

a) endothermic

b) exothermic

c) combustion

d) decomposition

Which of the following statements is true? 1. the mantle of the earth is made of solid nickel and iron. 2. the crust of the earth is made of solid nickel and iron. 3. the inner core is made of solid nickel and iron.

In pea plants, yellow seed color (y) is dominant and green seed color (y) is recessive. based on the punnett squares, what are the chances that the offspring in the second generation will have green seeds?

How does the structure of dna hold the information needed to code for the many features of multicellular organisms?