Answer:
Censors infringe(violate) the right of freedom when they hinder(restrict) spoken words, printed matter, symbolic messages, freedom of association, and lots more.
Explanation:
Answer:
relying on credible sources to strengthen an argument
Answer:
a) questionnaires
b) attitudes of student who had and who hadn't taken the course
c) difference in age group of students among whom questionnaire were distributed in both the groups.
d) restrict the age group in both the experimental groups.
Explanation:
The complete quetion is:
An investigator was interested in studying the effect of taking a course in child development upon attitudes toward childrearing. At the end of the semester, the researcher distributed a questionnaire to students who had taken the child development course. Questionnaires were also given to an equal number of students who had not taken the course. The students who had taken the child development course had different attitudes from the students who had not taken the course (cg., they had more positive response about having large families).
a) Identify the independent variable
b) Identify the dependent variable
c) identify confounding variable
d) propose a method to unconfound the experiment
a) questionnaires
b) attitudes of student who had and who hadn't taken the course
c) difference in age group of students among whom questionnaire were distributed in both the groups can lead to different understanding of questionnnaire and so affect the response towards the questions.
d) restrict the age group in both the experimental groups.
Confounding variables are variables that effect both the dependent and independent variable
Plants are called producers because they are able to use light energy from the sun to produce food (sugar) from carbon dioxide and water. Animals cannot make their own food so they must eat plants and/or other animals. They are called consumers. There are three groups of consumers. Animals that eat only plants are called herbivores (or primary consumers). Animals that eat other animals are called carnivores. Carnivores that eat herbivores are called secondary consumers, and carnivores that eat other carnivores are called tertiary consumers. Animals and people who eat both animals and plants are called omnivores. Then there are decomposers (bacteria, fungi, and even some worms), which feed on decaying matter. These decomposers speed up the decaying process that releases mineral salts back into the food chain for absorption by plants as nutrients.
In a food chain, energy is passed from one link to another. When a herbivore eats, only a fraction of the energy (that it gets from the plant food) becomes new body mass; the rest of the energy is lost as waste or used up by the herbivore to carry out its life processes (e.g., movement, digestion, reproduction). Therefore, when the herbivore is eaten by a carnivore, it passes only a small amount of total energy (that it has received) to the carnivore. Of the energy transferred from the herbivore to the carnivore, some energy will be “wasted” or “used up” by the carnivore. The carnivore then has to eat many herbivores to get enough energy to grow. Because of the large amount of energy that is lost at each link, the amount of energy that is transferred decreases each time. The further along the food chain you go, the less food (and hence energy) remains available.
Food chains can also be represented in different forms such as this pyramid.
