Answer:
Iron from the sand.
Explanation:
Since some types of ocean life, (plankton, algae, etc.) do sometimes not get enough iron, (nutrient) in their bodies, sand is needed for their survival. Sand has lots of iron for the animals' health, so sand is vital for their health and survival.
Males tend to determine the sex of the baby depending on whether sperm is carrying and X or Y chromosome. An X chromosome combines with a mothers X chromosome to make XX (Girl). A Y chromosome from a male will combine with a mothers X chromosome to make an XY (Boy).
Males always pass on the Y chromosome
1. Muscles are not organs, but are TISSUES composed mostly of fibers. The answer is false.
2. Muscles appear striated because of the alternating bands of two proteins, actin and myosin, which make up the muscle fibers. This answer is also fails
Answer:
11. Centrioles, asters, and spindles are mitotic structures responsible for pulling apart the sister chromatids.
12.The centriole
Explanation:
