What’s the question?? You never finished asking your question!
Answer:
A. Hold and receive food
D Break the food
2. A mouth
3. B compaction
4. C interphase
5. A histone
6. A G0
Explanation:
The main function of the digestive system is to receive, hold and break down the food. Mouth is the place where the digestion of the food starts in the body. Compaction is the process which is not present in the digestive process. Interphase is the longest part of the cell cycle in which cell grows and make copies of its DNA before starting mitosis. Histone is the protein where the DNA coils around to form a chromatin. Cells that mature leave the cell cycle and are arrested at phase is G0 phase.
Answer:
Independent variable: The diameter of the wooden pins.
Dependent variable: The depth of the pins in the sand.
Control variable: height of 15 cm at which the pins will be thrown, boxes containing 30 kg of sand and weights of 80 grams.
Explanation:
An independent variable is one that does not need the influence of another variable to happen and that, its variation, influences that a measurable result occurs. In this case, as we know that the depth of the wooden pins is measured according to the influence of the diameter of these pins, we can say that the diameter of the wooden pins is the independent variable.
The dependent variable, on the other hand, is one that shows a measurable result through the influence of the independent variable. In this case, we can say that the depth of the wooden pins in the sand is the independent variable.
The control variable, in turn, is the factor that establishes an egalitarian environment in which the research will be established. In this case, the control variable is the height of 15 cm at which the pins will be thrown, the boxes containing 30kg of sand and the weights of 80 grams.
Answer: B. Encouraging athletes to have children together
Explanation: The history of reproductive genetics is complex. During the early part of the last century, eugenics programs were popular. Eugenics is a science that deals with “improving” hereditary qualities. Positive eugenics encourages reproduction by those considered genetically superior. In Nazi Germany, “Pure Aryans” were encouraged to breed to create a superior race. Negative eugenics limits or discourages reproduction by those considered genetically inferior. In the United States, negative eugenics led to laws requiring the involuntary sterilization of thousands of people due to mental or physical handicaps. Events such as these have led people to question the value of eugenics. PF
