“All ecological relationships are competitive.” Write an argumentative essay (CER) of 250-500 words in support or refuting this claim. In your essay, use the vocabulary words symbiosis, predator/prey, competition, parasitism, commensalism, and mutualism. Your grade will be based 50% on content and 50% on English Writing Conventions. If you use references, be sure to cite them. Writing Hints: Use the outline on the next slide; Use a topic sentences; use relevant and interesting examples to support your claim; use transition and linking words appropriately; use verbs precisely and consistently with the subject; use a concluding sentences that explains the significance; use correct grammar, spelling, punctuation, and capitalization.

As scientists have investigated evolution from a variety of fields, they have found that some of darwin's orginal ideas were inaccurate or incomplete. t explanation provided by evolution was updated each time to reflect the new information they found. what does this suggest about the theory of evolution? it has become a stronger and clearer theory as new information is collected.

Imagine you are a student in alfred hershey and martha chase's lab in the late 1940's. you are given five test tubes with the e. coli bacteria that were infected with t2 bacteriophage that have been labeled with 32p or 35s. unfortunately, you forgot to label the tubes and are now uncertain which were 32p labeled and which were 35s labeled. you place the contents of each tube in a blender and pulse it for a few seconds to shear off the protein coats from the bacterial outer membranes. you then centrifuge the contents to seperate the protein coats and the bacterial cells. you then check for radioactivity and obtain the results shown below. which tubes contained e. coli infected with the phage labeled with 32p? select all tubes that apply.

What do scientific models predict will happen to earth's temperature if current trends continue unmitigated? a. earth will heat and cool in a natural cycle b. earth will heat up and then return to an ice age c. earth will continue to warm at a rate of 0.25 c per decade d. earth will start to cool at a rate of 0.25 c per decade appex