Answer:
The correct statements are that the first calorimeter is reliable but not valid, and the second calorimeter is valid and reliable.
Explanation:
The first calorimeter is reliable as the reading demonstrated by it is similar when each time the experiment is performed, however, the result attained is not correct, though it is reliable. On the other hand, the second calorimeter is both reliable and valid, as it is demonstrating the accurate results from time to time. This is valid as it is providing a similar result as that of the original readings.
Animal cells have centrioles and plant cells don't have this.Animal cells divide everywhere and all the time but plant cells divide in a specialized region called the meristems.
<u>Explanation:</u>
The mitotic cell division occurs in both plants and animal cells. The process involved in the formation daughter cells in cytokinesis stage makes the difference between animal and plant cell division. The animal cells forms a furrow and the daughters cells forms in the cytokinesis stage. The plant cells will not form furrow since their cells are rigid.
Centrioles are present in animal cells. centrioles are absent in plant cells. The cell division occurs at every place and any time in an animal cell. In plant cell the division occurs only in meristems which is a specialized region in plant cells.
C: rainforest are biologically more diverse than ecosystems.
Explanation: the reason why this is correct is because of the vast ratio of American and Europeans animal/plant species compared to Brazil alone. They have much more diversity hence having more biodiversity. The vast amount of plants and animals are superior to other countries.
