Calcium is an essential nutrient for all ages, but many marketing campaigns for high-calcium foods focus on childhood. do you think there’s merit to telling children to get their calcium because it builds strong bones? explain your response.

The wings of insects, birds, and bats evolved independently but carry out similar functions. this is an example of a. analogous structures. b. embryonic structures. c. vestigial structures. d. homologous structures.

2. sketch the inside of the bean nodule, and describe or label what you observed with the hand lens.

Which of the following statements is most likely correct about a rock belonging to the jurassic age and a rock belonging to the cambrian age? options: 1) they have identical fossils of organisms that have evolved over time. 2) both have animal fossils preserved in them due to weathering and erosion. 3) they contain different fossils because life on earth has changed through time. 4) the fossils in them were formed on the surface of earth due to exposure to sunlight.