Answer:
Purpose- "the reason why something is done or used"
Research- An open access, peer reviewed Journal. Information about a topic that is gained by investigating prevous information gathered by someone else. systematic investigation. A systematic way of gathering data and harnessing curiosity.
Avoiding Bias- Avoiding Bias means to write info with curiosity and with research, not using personal opinion or preferance to write info.
Hypothesis- May be described as an educated guess based on research to describe and/or to explain the effect of a certain cause. Usually written in If....Then.... (A specific testable Prediction describing what you expect to happen in a certain circumstance)
Experiment-An emperical Procedure using scientific method to test and explain a certain circumstance.
Also, A trial or test, carried out under controlled conditions, to discover something unkown, to verify a hypothesis.
Independent Variable- The Variable that is changed during an experiment.
Dependent Variable- The Variable that you measure in response that is affected by the changes made.
Control- The Control variable is the Variable that remains Constant and does not change.
Analysis- The careful study of the data obtained from the experiment.
Conclusion-Short paragraph that discusses the overall results from the data obtained by the experiment and explains whether the hypothesis was right or wrong.
The seminal vesicles and prostate gland make a whitish fluid called seminal fluid, which mixes with sperm to form semen when a male is sexually stimulated. The penis, which usually hangs limp, becomes hard when a male is sexually excited. That that
Answer:
Explanation:
Proto-oncogenes are genes that have the potential to turn normal cells to cancer cells if they mutate. Once they have a mutation, they are called oncogenes. These typically code for proteins that control the cell cycle and cell growth.
Ras proteins are intracellular, and act as molecular switches that can be inactive or active. If they are inactive and receive a signal from the extracellular space indicating that the cell has to grow, they bind GTP and become activated. Once active, they send further signals that stimulate cell proliferation and division. After a while of sending those signals, the Ras protein hydrolizes GTP to GDP because it has an intrinsic GTPase activity, and becomes inactive once again, stopping the growth signal.
Mutations in the Ras oncogene typically affect the GTPase activity, causing its loss of function and subsequently that the Ras protein stays permanently active. This, in turn, causes uncontrollable cell proliferation, characteristic of cancer.
During a full or new moon, when the Earth, moon and sun align, spring tides form, creating higher and lower than normal tides. During the first- and third-quarter moon phases, when the moon and sun are at right angles to the Earth, neap tides occur, creating low and high tides with minimal difference in heights.
<h3><u>Answer;</u></h3>
Alpine skypilots evolve large flowers above the timberline and small flowers below the timberline.
<h3><u>Explanation;</u></h3>
- <em><u>Natural selection occurs when organisms or species with certain genotypes are more likely to survive and reproduce, compared to individuals with other genotypes, and thus to pass on their alleles to the next generation.</u></em>
- Alpine skypilots evolve large flowers above the timberline and small flowers below the timberline. This is an example of disruptive selection, which increases genetic variation.
- Longer tails in dragonflies and finches for a particular beak size are examples of directional selection, which decreases genetic variation.
- Natural selection against heavy and light field mice is an example of stabilizing selection, which reduces genetic variation