Hello users can yall help me out with science aka living environment? Poison ivy is a weed that grows in New York State. Researchers have found that if poison ivy grows in an environment that contains an increased concentration of carbon dioxide, the plants grow larger and faster. Because carbon dioxide levels in the atmosphere are rising, poison ivy might become a hazard to people who work or vacation outdoors.

In order to verify this research, experiments must be carried out. Design an experiment to test the effect of air containing higher than normal concentrations of carbon dioxide on the growth of poison ivy. In your answer, be sure to:

1. state the hypothesis the experiment would test

2. state one way the control group should be treated differently from the experimental group

3. identify two conditions that should be kept the same (constant) in both the control and the experimental groups (1) (2)

4. identify the independent variable

5. describe the type of data to be collected (dependent variable)

6. identify one way you can increase the validity of this experiment

What is the key to the recognition of codominance?

In "the pig," what is the main effect that the piglet initially has on kibuka?

You will create a molecular clock model for an arthropod gene. follow these guidelines to make your model: . your timeline will span from 90 million years ago to the present. the common ancestor in your model is an arthropod that lived 90 million years ago. the gene that you'll track codes for a protein in the species venom . the dna sequence youll track contains 10 nitrogen bases. you can choose the order of the bases and where the mutations occur. this gene mutates at a rate of approximately 0.76 base pairs every 17.1 million years. to build your model,/ calculate the estimated time period it takes for 1 base pair to mutate. the first time period will only show the common ancestor. at the beginning of the second time period, three lineages will diverge from the common ancestor, each with a different mutation in their gene sequences. the first and third descendant species will survive for the rest of the timeline. the second descendant species was extinct 50 million years ago. calculate how long it will take for one full base pair mutation to occur. explain your reasoning by constructing a mathematical equation