Which is correct regarding an endothermic reaction?
a. the reaction does not occur.
b. the reaction liberates heat.
c. the enthalpy of the reactants is higher than the enthalpy of the products.
d. the sign of the h is positive.
e. the temperature increases when the reaction is carried out in a calorimeter?

I’m stuck on this question cuz i’m stupid sksksksk

Scientists discover two populations of mice on either side of a major river. the two populations have almost identical genes but the mice from one side cannot breed with mice from the other. this is most likely because

Refer to the family pedigree shown here. in generation i, one parent is affected by the gene mutation and one parent isn't. in generation ii, all three children are affected by the gene mutation. what can you conclude about this gene mutation? a. all children born in future generations will be affected by this disorder. b. this gene mutation is a dominant disorder. c. this gene mutation is a recessive disorder. d. the generation i mother is a carrier of this gene mutation.