Answer:
Options f and g
Explanation:
A muscle fiber at rest includes such characteristics that calcium ions have not been released and at still stored in the sarcoplasm (a form of ER). Its release will trigger muscle contraction. Another characteristics is that the acetylcholine receptors that binds the neurotransmitter acetylcholine are open i.e not yet bound to the neurotransmitter. Binding of the neurotransmitter to its receptor will trigger the release of calcium ion from the sarcoplasm thus initiating muscle contraction.
Answer and Explanation:
Your body uses protein to build and repair tissues. You also use protein to make enzymes, hormones, and other body chemicals. Protein is an important building block of bones, muscles, cartilage, skin, and blood.
The Catskills are considered a dissected plateau as at one point it was a complete plain level land that due to seismic activity got uplifted and then eroded over time, otherwise the entire land piece is part of a much larger plateau.
Answer is Meiosis.
Meiosis is the process by which most eukaryotic organisms form sex cells or gametes. During prophase of meiosis I, the homologous pairs of chromosomes cross over with each other and often exchange chromosome segments. This recombination creates genetic diversity by allowing genes from each parent to intermix, resulting in chromosomes with a different genetic complement. The exchange of chromosome segment between non-sisters chromatids forms new combination of genes on a chromosome can lead to new traits in offspring. The process helps increase the genetic diversity of a species.
Answer:
Natural selection. It is simply the process by which random variations that give an individual a favorable adaptation to its environment survive to be passed on to offspring.