Human gestation time is 40 weeks or 280 days
A testosterone level test measures the amount of testosterone in the blood and is reported as nanograms per deciliter (ng/dL). It's also known as a serum testosterone test. - Google
Explanation:
The phase of Prophase I of meiosis is very long and divided into 5 subphases: Leptotene, Zygote, Pachytene, Diplotene, and Diakinesis. During a phase of the Diplotene, the degree of condensation is high, which allows individualizing the sister- chromatids that remain attached by the cohesins. The synaptonemal complex disintegrates, and from the centromeres begins a repulsion between homologous chromosomes, which remain associated only with the places where they occur as permutations.
These sites are called chiasmas (Greek, crossed) because they show the crossover of homologous chromatids. Chiasmas represent the cytological finding of the occurrence of permutation. The presence of at least one bivalent chiasm is essential to ensure the correct segregation of the homologous chromosomes in anaphase I.
The tap root is advantageous to a plant in long periods of drought because it has a large storage of water and nutrients.
It is the largest and the most dominant root part in plants, which are sometimes thick, and grows straight downward.
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When surface water<span> is warm, cooler, </span>nutrient-rich water<span> is trapped below. Because the vertical layers of the </span>ocean<span> aren't mixing, </span>nutrients<span> that have built up in </span>deep waters<span> can't reach the surface. ... The rising, or upwelling </span>water<span> carries iron and other </span>nutrients<span> from the </span>ocean<span> floor</span>
