Part B: Find Credible Sources When writing a research paper, look for credible sources. Science doesn't show bias, but humans do.
Avoid sites and articles that provide facts without citing proper scientific evidence. You must be able to
identify reliable sites so that the data in your research paper is credible.
Use sources that end in. gov, such as CDC. gov. These government sites are reliable sources. You can also
use sites ending in .edu. They're generally trustworthy, but sometimes students, not scientists, write
content for. edu websites. Always identify the source's author before proceeding. Some .org and. com
sites are credible, but it's important to verify their authenticity. When reviewing a source, ask these
questions:
• Who is the author?
• Is this person a cancer expert?
• What is the document's purpose?
• Does the document state facts that scientists can prove with evidence?
• Are there opinions in the document?
• How old is the document?
• Do other credible sources support the statements in the document?
Search for credible websites and note the information they contain. Write down two sources that you'll
use for your research paper, and cite them using Modern Language Association (MLA) citation methods

In the african savanna,more wildebeests are born than the environment can support. which is most likely to happen over a period of years as a result

Classify the structures as homologous or analogous, depending on their structure and function.

Rease is an enzyme used by plants to break down urea (a nitrogen-containing compound) into carbon dioxide and ammonia. urease urea > > > carbon dioxide and ammonia ammonia is broken down by plants into a nitrogen source plants need to grow. thus, plants could not use urea as a nitrogen source unless it was first converted to ammonia. in soybean plants there are two different kinds of urease, one produced in the seeds and the other produced in the leaves of the plant. three types of soybean plants were used in a set of experiments: normal soybeans and two mutant strains, one lacking the urease in the seeds only (strain 1) and one lacking urease in the leaves only (strain 2). experiment 1 separate areas in a field were planted with normal, strain 1, and strain 2 soybeans. all types of soybeans appeared to grow, flower, and produce seeds equally well. there were no externally detectable differences among the strains. experiment 2 small pieces of plant leaves of equal weight were obtained from each type of soybean plant and separately placed on media in culture dishes. tissue growing in this way will become an unorganized clump of cells referred to as callus. to provide a controlled nitrogen source, half the tissue samples of each type were placed on media containing urea, and the other half of the samples were placed on media containing ammonia. after 30 days, the weight gain for each of the callus samples was determined. results are shown in the table below.