Which of the following classifications of matter includes materials that can no longer be identified by their individual properties?

Hurry 25pts which one of these is involved in both sexual and asexual reproduction a sperm b spores c seeds d eggs

The terrestrial planets are characterized by having a a.) silicate core b.) iron-rich silicate core c.) iron-rich metallic core d.) none of these

Idon’t know the answer and i’ve been stuck on it for a while now skskskskks