Human somatic cells have 46 chromosomes, including 22 homologous pairs and one pair of nonhomologous sex chromosomes. This is the 2n, or diploid, condition. Human gametes have 23 chromosomes, one each of 23 unique chromosomes. This is the n, or haploid, condition.
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Answer:
Capsule
Explanation:
In many bacterial species, an extracellular layer composed of a polysaccharide especially a monosaccharide is produced around the cell wall of the bacteria. This extracellular layer is known as the slime layer or the capsule.
The capsule in bacteria serves many purposes like it protects the bacteria from the destruction by the white blood cell in the host, it enables the bacteria to adhere to the substrates and protect it.
In the plant group called the bryophytes also a capsule structure is present which grows in the sporophytic phase and encloses the spores, therefore, the capsule is considered the sporangium of the bryophytes.
Thus, the capsule is correct.
Answer:
The gray tree frog is closely related to the green tree frog genetically, but they have different mating calls. This suggests that speciation occurred because of reproductive isolation.
Explanation:
It is a speciation that occurs due to a type of reproductive isolation. The song of each of these frogs has specific patterns only recognizable by members of the same species, so they are called a mechanism of reproductive isolation.
Different courtship rituals in animal species create extremely potent reproductive barriers, which keep the two frog species isolated despite They are genetically close
the answer to this would be diffusion, where particles move from areas of high concentration to areas of low concentration!