Q: The skin plays an important role in preventing the escape of what commonly found liquid from the body? Read this paragraph and choose the correct option from the provided answers: The skin has multiple roles in the body. Many of these roles are related to homeostasis. The skin's main functions are preventing water loss from the body and serving as a barrier to the entry of microorganisms. In addition, melanin in the skin blocks UV light and protects deeper layers from its damaging effects. Choices: - hormones - stomach acid - urine - water A:
water

Q: A mitotic spindle forms from the centrioles and passes through the nuclear membrane, which remains intact. chromosomes attach to the mitotic spindle, which separates the chromosomes and does what? Read this paragraph and choose the correct option from the provided answers: A mitotic spindle forms from the centrioles and passes through the nuclear membrane, which remains intact. Chromosomes attach to the mitotic spindle, which separates the chromosomes and elongates the cell. Choices: - manipulates the cell - migrates the cell - destroys the cell - elongates the cell A:
elongates the cell

Q: What in hemoglobin gives red blood cells their red color? Read this paragraph and choose the correct option from the provided answers: Red blood cells are shaped like flattened disks. There are trillions of red blood cells in your blood. Each red blood cell has millions of molecules of hemoglobin. Hemoglobin is a protein that contains iron. The iron in hemoglobin gives red blood cells their red color. It also explains how hemoglobin carries oxygen. The iron in hemoglobin binds with oxygen molecules so they can be carried by red blood cells. Choices: - calcium - lead - barium - iron A:
iron

Q: What broad group of living things serves as the major producers in terrestrial biomes? Read this paragraph and choose the correct option from the provided answers: Plants are the major producers in terrestrial biomes. They have five basic needs: air, warmth, sunlight, water, and nutrients. How well these needs are met in a given location depends on the growing season and soil quality, both of which are determined mainly by climate. Choices: - vases - flowers - animals - plants A:
plants