Q: Q: What are the secretions released by the endocrine glands called?   Read this paragraph and choose the correct option from the provided answers:  Endocrine Glands The secretions of endocrine glands are called hormones. Hormones are released into the interstitial fluid, diffused into the bloodstream, and delivered to targets, in other words, cells that have receptors to bind the hormones. The endocrine system is part of a major regulatory system coordinating the regulation and integration of body responses. A few examples of endocrine glands include the anterior pituitary, thymus, adrenal cortex, and gonads.   Choices:  - acids  - fluids  - enzymes  - hormones   A:
A: hormones


Q: Q: What is the term for the visible part of the electromagnetic spectrum?   Read this paragraph and choose the correct option from the provided answers:  Earth is just a tiny speck in the Universe. Our planet is surrounded by lots of space. Light travels across empty space. Light is the visible part of the electromagnetic spectrum . Astronomers use the light and other energy that comes to us to gather information about the Universe.   Choices:  - chroma  - gravity  - electricity  - light   A:
A: light


Q: Q: What is located at the center of our solar system?   Read this paragraph and choose the correct option from the provided answers:     Choices:  - a black hole  - the moon  - the earth  - the sun   A:
A: the sun


Q: Q: While still an early fetus, what is the skeleton made of?   Read this paragraph and choose the correct option from the provided answers:  Early in the development of a human fetus, the skeleton is made entirely of cartilage. The relatively soft cartilage gradually turns into hard bone through ossification . This is a process in which mineral deposits replace cartilage. As shown in Figure below , ossification of long bones, which are found in the arms and legs, begins at the center of the bones and continues toward the ends. By birth, several areas of cartilage remain in the skeleton, including the ends of the long bones. This cartilage grows as the long bones grow, so the bones can keep increasing in length during childhood.   Choices:  - ligament  - membrane  - gel  - cartilage   A:
