HELP! BRAINLIEST TO FIRST CORRECT!

All stars produce energy through nuclear fusion. Which is the reactant for the nuclear fusion reaction in all young stars?

Hydrogen

Carbon

Helium

Iron

Why does the skin of your finger shrink when you wash clothes for a long time?

The is an estimate of the fewest number of organisms a population needs to avoid extinction. this measurement will most if the number of offspring each female in the population produces increases. if the population's this measurement will most likely increase. 1 population density, minimum viable population, carrying capacity 2 decrease, be unaffected, increase 3 death rate increase, dead rate decrease

Based on the number of offspring they produce at one time organisms are classified into two categories many offspring at once and a few at a time sort the carry sticks based on the category they describe