ᴵᶠ ʸᵒᵘ ʷᵃⁿᵗ ᵐᵉ
ｈｅｒｅ
ᵇʳᵃⁱⁿˡʸ.ᵗᵒᵈᵃʸ

Fossils can only be formed when? if mud, silt or tar is in the area to preserve the fossil ierosion does not occur and allows the fossil to form oxygen and microorganisms cannot decay the bones the area is dry and does not contain mud or silt

In a cladogram' when does a group of organisms branch off

Which factor that affects biodiversity?