Answer:
Nothing. Advertisements are not a valid source of scientific evidence since they are testimonials.
Explanation:
Testimonials are an important toll in marketing industry and are often used to show the efficacy of a product such as this "Fit-Gadget". It is not unusual to for people to base their decision on this testimonials even though they are not grounded in science. This factor, of not being based in scientific evidence discards them as a source of reliable evidence.
Answer:
Seriation .
Explanation:
In the third stage of Piaget's theory of Cognitive development i.e., Concrete Operational Stage, Seriation is an important process. The third stage in this theory covers the age of 7-12 years.
Seriation is the ability of a child to sort objects according to its characteristics.
Claire who is 8-years-old is able to sort sticks according to its size by seeing there features or sizes but unable to solve the problem of who is tallest because his concrete mental operation is poor in seriation.
So, the correct answer is "seriation".
Answer:
- plants respiratory systems=>
Roots, stems, and leaves of plants exchange gases for respiration separately. As we all know, leaves have tiny pores called stomata, which is used for the exchange of gases. The oxygen, taken in through stomata is used by cells in the leaves to break down glucose into carbon dioxide and water.
2. animals respiratory systems=>Some animals such as amphibians are able to exchange gases through their moist skin. Fish have gills while mammals, birds, and reptiles have lungs. Your respiratory system is made of your nose and mouth, a tube called the pharynx, another tube called the trachea, and your lungs.
