2 points 8. The Fossil F3 was identified as an index fossil that was around 200,000
years ago. What could be assumed about the fossil found in the same
layer, F2?
F1
ES
Region 1
Region 2
Region 3
The fossil F2 was alive earlier than 200,000 years ago
O The fossil F2 was around at the same time as the index fossil
O The fossil F2 was around later than the index fossil
The age of the fossil cannot be determined by using the age of the index fossil

Chlorophyll is found in plant leaves and absorbs light from the sun to enable plants to perform photosynthesis. magnesium is an important component of chlorophyll. the concentration of magnesium ions is higher in the root-hair cells of plants than in the soil. which mechanism of ion uptake would best enable a plant to produce a steady supply of chlorophyll? osmosis diffusion passive transport active transport

Which short-term environmental changes would a very small asteroid or comet impact on earth most likely cause? check all that apply. flooding extinction craters on surface changes in weather patterns death of organisms and populations

Use the above pedigree for questions 1,2, and 3 1. what kind of genetic disorder is represented in the pedigree? a. recessive b. dominate refer to the pedigree in question 1. 2. is the mutated gene in this disorder located on a sex chromosome (x or y) or an autosome? a. sex chromosome b. autosome refer to the pedigree in question 1. 3. which generation has individuals that you are certain are heterozygous for the mutated gene? a. generation 1 b. generation 2 c. generation 3