Scientific investigations often lead to the formulation of new scientific questions. The observations Charles Darwin made during his time aboard the H.M.S. Beagle prompted him to ask which question?

KASTLE - MEYER COLOR TEST can be used to determine if a stain is blood or not.

Kastle - Meyer color test is a presumptive blood test that is used to determine whether a stain is a blood or not. It is an easy and reliable forensic method of determining the nature of a stain in crime laboratory. The test involves using the indicator, phenophtalein to determine if hemoglobin is present in a stain. A positive result is obtained it the phenophtalein turn to a bright pink colour when it comes in contact with the stain.

Answer:

Heart disease is the leading cause of the death in the United States. It is also a major cause of disability. There are many things that can raise your risk for heart disease. They are called risk factors. These ahould be considered as starters for a teaching plan to adults with no medical background, the risk factors that can be changed and the ones that cannot.

• Gender

• Age

• Family History

• Race or ethnicity

The factor above are considered as risk that cannot be changed, there are some risks that women and men have differently for example, progesterone protects women from heart diseases but if the patient develops diabetes women are mostly likely to have a heart disease. Also age is factor that can't be changed or controled men over 45 are more likely to have a heart disease and women over 55 are more likely to have a heart disease.

Even though there are some factor that can be controlled by taking care of yor health, for example; Controlling yor blood pressure, have a healthy diet with lots of vegetables and fruits, following the food pyramid for a balanced meal everyday, practice exercise and avoid sedentarism, stop smoking it will only increase your blood pressure, sleep well, you should be sleeping from 7 to 9 hours a day, control your weight, the fat in your blood can cover your veins and arteries, mainly the coronary ones which are in charge of supplying oxygen-rich blood to the heart. Finally you can also limit and control the amount of alcohol you ingest and the amount of stress you deal everyday.

These are basic terms to educate adults with no health backgrounf about prevention of heart diseases.

This through the process of mitosis. Mitosis is a type of cell division which responds to the multiplication of cells or more specifically the duplication of diploid cells. Diploid cells contain the complete DNA number in contrast to the haploid cells. 

Answer:

The correct answer is option (B) "a community".

Explanation:

A biological community is defined as a group of organisms from various species that interact within a defined location. A biological community is one of the smallest categories of ecology, since it comprises a small location and the interaction of few species. An example of a biological community is the group of some organisms living in a vacant lot include grass, dandelions, mice, grasshoppers, and slugs.