Un cruce entre un conejillo de pelo erizado y uno de pelo liso ha dado 7 crías de pelo erizado y 1 de pelo liso. En otro caso, el
cruce de un conejillo de indias de pelo erizado y otro de pelo liso no ha
dado más que descendientes de pelo erizado. a) ¿Cuál es el carácter
dominante y cual el recesivo? b) ¿Cuál es el genotipo de los padres en
ambos casos?

The circles, or orbits, for electrons are called energy levels. each level can hold only a certain number of electrons. add electrons to each level until you can't add any more. how many electrons can each level hold?

Someone me with this: a mineral' is determined by its actomic structure.

Which of the following statements is most likely correct about a rock belonging to the jurassic age and a rock belonging to the cambrian age? options: 1) they have identical fossils of organisms that have evolved over time. 2) both have animal fossils preserved in them due to weathering and erosion. 3) they contain different fossils because life on earth has changed through time. 4) the fossils in them were formed on the surface of earth due to exposure to sunlight.