Answer:
Muscles produce keratin so that hair can grow stronger. Sweat glands break down the food that is consumed. Muscles contract rapidly to produce heat on a cold day.
Explanation:
2: carbon can be found in the atmosphere, rocks, soil, & fossil fuels,
In hemophilia A it’s caused by a mutation in the gene for factor VIII. Hemophilia B is a result in a deficiency in factor IX due to a mutation in its corresponding gene.
In both cases, it is a mutation in the DNA (the macromolecule).
Answer: D. Gymnosperms
Explanation: The Gymnosperms ( also known as Acrogymnospermae) are a group of seed-producing plants in which the ovules or seeds are not enclosed in an ovary. Examples of Gymnosperms are spruces, firs, and ginkgoes and pines.
