Name:
date:
homework: ideas about the separation of the mesosaurus fossils
the museum of west namibia wants to know if the
west amibia wants to know if the mesosaurus fossils were separated in one or a
series of quick, nuge movements, or if the separation was the result of slow and steady movement
hese
given what you learned today, which of the claims below seems best supported? why? what
questions do you still have? write your response to these questions below. using words from the
word bank
claim 1: the south american plate and african plate moved apart suddenly,
claim 2: the south american plate and african plate moved apart gradually.
word bank
mantle
outer layer
pattern
plate boundary
plate
rate

The diagram below represents a marine food web and a process that can harm the human population. each circle represents an organism and the smaller dots inside them represent a toxic substance. what is being represented and how does it harm the population? the diagram represents biological half-life, in which toxins build up in organisms higher up on the food chain, and this can negatively impact humans who consume the organisms and the toxic substance. the diagram represents biomagnification, in which toxins build up in organisms higher up on the food chain, and this can negatively impact humans who consume the organisms and the toxic substance. the diagram represents the process by which different organisms prey upon each other; this can impact the human population by reducing the number of organisms that do not contain the toxin. the diagram represents the way that toxins are metabolized by living organisms, with those at greater trophic levels able to metabolize more efficiently than those at lower levels. this means that those at higher tropic levels are safer for humans to consume compared to the organisms at lower trophic levels.

What must be true for natural selection to heppen

Scientists discover two populations of mice on either side of a major river. the two populations have almost identical genes but the mice from one side cannot breed with mice from the other. this is most likely because