What is the carbon cycle? The conversion of carbon into fossil fuels The transformation of carbon into nitrogen A natural cycle in which carbon is exchanged among the atmosphere, oceans, soil, and living organism The process by which carbon is absorbed by rocks and minerals

Dans une première approche, la biologiste estime que la population croit de \( 5 \% \) par an. L'évolution annuelle de la population est ainsi modé- lisée par une suite \( \left(v_{n}\right) \), où \( v_{n} \) représente le nombre d'individus, exprimé en millier, l'année \( (2020+n) \). On a donc \( v_{0}=12 \). 1. Déterminer la nature de la suite \( \left(v_{n}\right) \) et donner l'expression de \( v_{n} \) en fonction de \( n \). 2. Ce modèle répond-il aux contraintes du milieu naturel?

e se passet ill lorsque on ajoute du tryptophane a lalimentation du lot 2

3. What does the article suggest about the effectiveness of measures like wearing masks and social distancing in controlling the virus's spread? 4. How did the pandemic alter daily routines for students and their families, and what can you infer about the challenges they faced? 5 . What can be inferred about the importance of vaccines in reducing COVID-19 cases in the United States?

\[ \text { Biodiversidade } \] Biodiversidade diz respeito, entre outros fatores, à variedade de seres vivos de um local. O Brasil destaca-se como uma das regiões do planeta com maior Biodiversidade. Biodiversidade é um termo usado pela primeira vez na década de 1980 como sinônimo da expressão da diversidade biológica. Falar em biodiversidade é falar da riqueza de espécies de uma região bem como das variações ocorrentes nessas espécies. Todas as áreas do planeta apresentam biodiversidade, entretanto, em algumas regiões, ela é maior, porém isso não significa que sua importância seja

What was the indication to Richard Owen that the fossils he had found were not like other reptiles? A) They were found in climates where scientists know reptiles cannot survive. B) They had five vertebrae, and their limbs did not sprawl t the side, but were upright. Chey did not have any vertebrae, and their limbs sprawled out to the side rather than upright. (D) They were much smaller than any other bones that had ever been found.