Why are there limited levels of consumers? for example, apex predators are usually tertiary or quaternary consumers. why don’t we have many 5th, 6th, or 7th level consumers?

Question#29: why does the tropical ocean have a greater temperature range than the temperate ocean?

Fossils of ancestors of the modern horses show a small 4-toed almost dog-like browsing animal named eohippus over time the horses got larger lost toes and changed to a grazing diet what is the best explanation of why this change occurred

Analyze how the four requirements for life were identified by scientists