Que hace parte del núcleo y tiene carga positiva a. neutrón

b. electrón

c. protón

Which of the following is one of the four conditions necessary for natural selection to occur in a population? fewer organisms are born than the habitat can support mutation does not occur organisms have identical characteristics variation is inherited

Abnormal softening of a gland is known as

Match the reproductive structures based on their function and the system to which they belong. egg ovary sperm vas deferens vagina fallopian tube testis urethra