CAN ANYONE HELP ME PLEASE WITH THE QUESTION ABOVE

How many trophic levels are there in the following food chain? phytoplankton - shrimp - perch - pike - osprey

Which statement about dna replication is true? a. eukaryotes only have one circular chromosome that unwinds at multiple locations. b. eukaryotes can only replicate one segment of a chromosome at a time. c. prokaryotes can only replicate their single circular chromosome in the nucleus. d. prokaryotes only have one origin of replication to initiate replication.

Apart of an ecosystem that can restrict the growth of a population is referred to as