Answer:
The answer is B - Tap water can be found in the natural environment, but what the lab technician is testing is if there is lead in the water. This part is not related to biology therefore making B the answer.
Explanation:
Biology is the study of living organisms and life.
Every other answer is related to Biology.
A - A vitamin that helps with vision - this will affect the human vision to become better after taking it; this relates to biology because it involves the interaction of humans and the human body system.
C - Change of environment - this deals with the bird's environment and how they live and breed, which is in biology
D - Growing coffee to reduce harm to the rainforest - this deals with biology because it is taking about the environment and how certain changes will affect how it will thrive.
E - DNA - this is involved in human and other organism's systems and is related to biology.
Answer:
A
Explanation:i beleive its a because it needs to be active
B malignant is the correct answer
Answer:
Explanation:
Oxygen is the chemical element with the symbol O and atomic number 8. It is a member of the chalcogen group in the periodic table, a highly reactive nonmetal, and an oxidizing agent that readily forms oxides with most elements as well as with other compounds
Answer:
The difference in lighting in this study is an independent variable.
Explanation:
In a scientific study or experiment, the variable being tested or measured or affected by the experiment is called the dependent variable. The independent variable is the variable that is not dependent on any other variables or factors. It is changed or controlled during an experiment in order to cause a change in the dependent variable.
Here, the study is conducted on rats to observe the impact of ginkgo biloba on rat's memory when a measured dose of the same is given through their diet. Ginkgo biloba helps to retain short-term spatial memory in rats. Rats are comfortable in the light and get used to any lighting situations. But they avoid light due to their nature and are generally nocturnal. They cannot see properly in the dark, but can easily navigate through the darkness with the help of their extremely sensible whiskers. The difference in lighting during the experiment acts as an independent variable that is manipulated to induce a change in the dependent variable, to check the ability of ginkgo biloba-enhanced rats and normal diet rats that run through a complicated maze.
