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.
Answer:
new food sources
Explanation:
other three factors do not contribute to the growth of them
Answer:
the prey of crabs would be positively affected, and the predators of crabs would take a negative effect to the extinction of crabs
Explanation:
small clams, starfish, snails, worms, squid, mussels, shrimp and small fish would all be positively affected if crabs were to go extinct, because all that is listed are part of a crabs diet, for both large and small crabs. the ones which would be negatively affected would be the predators of crabs, such as cobia, eels, striped bass, jellyfish, red drum, American eels, sharks, dogfish, sea rays, and smaller fish. they would take a negative affect to the extinction of crabs because as said before, these are all predators of crabs, so the extinction would remove them from their diet, forcing them to find other sources for food
La ciencia está por todas partes, echa un vistazo a tu alrededor y seguro que te surgen un montón de preguntas acerca del mundo, ¿por qué el cielo es azul?, ¿cómo es posible que los barcos floten y los clips no? o ¿qué causa las olas en el mar? La ciencia busca respuestas a todas esas preguntas de una forma razonada y organizada, utilizando un proceso llamado método científico.El método científico tiene varias etapas: 1. La pregunta. Observas algo que quieres conocer y te planteas una pregunta.2. Información e investigación sobre el tema. …3. La hipótesis. Una vez realizada la investigación estás en condiciones de hacer predicciones y formular una hipótesis, es decir, con los datos que tienes respondes a la pregunta.4. El experimento. Diseñas un experimento para comprobar si tu hipótesis es cierta.5. Análisis de los resultados del experimento y conclusión. El experimento puede respaldar la hipótesis, pero muchas veces no lo hará. En este caso no hay que desanimarse. Un experimento fallido aporta nueva información que te servirá para formular otra hipótesis.
