Answer:
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A muscle on the front of the upper arm is called the biceps. The "short head" and "long head" of the biceps function as a single muscle.The triceps, also known as triceps brachii, is a large muscle on the back of many vertebrates' upper limbs that is known as the "three-headed muscle of the arm" in Latin. The long head, lateral end, and medial end makeup its three components.
Tendons, which are strong connective structures, hold the biceps to the arm bones. The proximal biceps tendons are the tendons that attach the biceps muscle to the shoulder joint twice. The distal biceps tendon is the tendon that connects the biceps muscle to the forearm bones (radius and ulna). When the biceps muscles contract, the forearm is pulled up and rotated outward.
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<span>It may be difficult for ecologists to determine the size of a bird population if that population migrates to different locations throughout the year. During migration, some birds may split off from the group and not return, others may die, and still others may join. Therefore, the bird population will be in constant flux. It is hard to know, when the birds return to their prior location, if the population consists of the same group of birds (in addition to deaths and births) or whether it has grown or shrank through other means. However, to estimate the size, an ecologist can track a migratory flock through several years, counting each year to get a general sense of the population size. Additionally, given one measurement, an ecologist could consider the average lifespan and birth rates of the population to extrapolate the size of the population in subsequent years.</span>
The answer is <span>Anaphase I separates homologous chromosomes and anaphase II separates sister chromatids into daughter cells.</span>
Meiosis is a cell division which results in the reduction of chromosome number by half - from diploid to haploid - in daughter cells. It consists of meiosis I and meiosis II. Meiosis I produces two haploid cells. Meiosis II is analogous to mitosis, so in total, meiosis results in four haploid cells. So, in meiosis, there are two anaphases - the anaphase I in meiosis I and the anaphase II in meiosis II.
<span>In anaphase I, the sister chromatids separate from each other to the opposite sides of the cells. In meiosis I there are 46 chromosomes in duplicate, which are present as pairs of sister chromatids. In anaphase of meiosis II, since the cell is haploid, there are 23 chromosomes in duplicate, which are present as sister chromatids.</span>
