Answer:
A) Empezaron a entablar una relación más estrecha con el medio ambiente.
Explanation:
Desde el pasaje, podemos ver que la gente comenzó a prestar más atención a su entorno y cómo la fauna y la flora afectan la vida humana.
Incluso intentaron desarrollar un sistema burdo de clasificación biológica. Henec, se puede inferir que las personas desarrollaron una relación más cercana con su entorno.
<h2>Answer:</h2><h2>23 sperm cell in humans</h2><h2>42 zygote in monkeys</h2><h2>24 zygote in humans</h2><h2>48 egg cell in monkeys</h2>
Answer:
Explanation:
The first one is Prostista: Since they are mostly unicellular and are classified as eukaryotic.
The second one is Eubacteria: Since all Eubacteria has peptidoglycan in their cell walls.
The Last One is Achaebacteria: They tend to help in digestion which is a very acidic environment and fit the other two criteria
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♦ The small intestine is the part of the gastrointestinal tract where much of the digestion and absorption of food takes place.
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♦Brunner’s glands: Compound, tubular, submucosal glands found in that portion of the duodenum that is above the hepatopancreatic sphincter (sphincter of Oddi).
♦Peyer’s patches: Patches of lymphoid tissue or lymphoid nodules on the walls of the ileum in the small intestine.
♦intestinal wall: The wall of the small intestine is composed of four layers, from the outside to the inside: serosa, muscularis, submucosa, and mucosa.
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Answer:
The two main types of DNA organization present in chromosomes are the extended DNI and the condensed DNI
Explanation:
In eukaryotes, the complete chromosome is composed of only one lineal and extremely long DNA molecule. DNA is intimately associated with two types of proteins: <u><em>histones</em></u>, which are structural proteins, and <em>non-histone</em> proteins that mediate different functions of DNA.
DNA associated with histones is called <u><em>chromatin</em></u>. Histones are responsible for packaging DNA molecule, and the fundamental unit of packaging is known as a <em><u>nucleosome</u></em>. As chromatin must be condensed, nucleosomes generate regular structures between themselves forming a <em><u>chromatinic fiber</u></em>, in which DNA is very condensed. A superior level of condensation is the structural <em><u>ringlet-shaped domain</u></em>. At this level, a chromatinic fiber is folded and a protein is responsible for keeping joined the two regions of DNA that form the ringlet. The next condensation level is the rolling of the ringlet-shaped domain composing the <u><em>chromosome</em></u>. The typical chromosome in the metaphase is formed by <u><em>two chromatids</em></u> joined by a centromere. Each chromatid is composed of a sequence of chromatin ringlets domains. In the interphase, <em>before cellular division</em>, chromatin is in a diffuse, lax, uncondensed state, known as extended DNA. When <em>cellular division</em> is about to happen, chromatin begins to condensate. At the beginning of the <em>prophase</em>, DNA is condensed in a well-defined chromosome formed by two sisters chromatids.