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Ksju [112]
3 years ago
7

Really need help plz

Biology
1 answer:
katrin [286]3 years ago
6 0
Such a miniscule amount of light penetrates beyond a depth of 200 meters<span> that photosynthesis is no longer possible. </span>
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The three basic components of analog and digital signals are: amplitude, frequency, and ____.
kirill [66]
The answer to this question is phase. These three properties, amplitude, frequency and phase are basic properties of waves. Frequency refers to the number of cycles per second, amplitude refers to the strength, and phase is the position of the wave on the time axis.
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3 years ago
What is innate immunity? Discuss the barriers associated with innate immunity.
Rama09 [41]

Answer:

Innate immunity is a nonspecific defense mechanisms that play its role as soon as an antigen appear in the body (it is relatively rapid but nonspecific and because of that it is not always effective)

Explanation:

The barries of innate immunity are:

Skin: At Epidermal surface, its protective aspect are keratinized cells that lives on the surface, known as Langerhans cells.

Skin sweat or secretions: Their specific defense is sweat glands and sebaceous glands, and their protective aspect is low ph and washing action.

Mucosal surfaces: they are at the mucosal epithelium, and their protect aspects are nonkeratinized epithelial cells.

Oral cavity: They defend salivary glands through Lysozyme

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3 years ago
RR Lyrae, Cepheid, Population 11, Quasar. Out of all these which one doesn't belong?
Arlecino [84]
Population 11 doesnt belong.
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i hope this helps my dudette
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Zane
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Whats cooler than being cool ?
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Which of the following IS
strojnjashka [21]
Reproductive isolation means they do not meet with each other or do not produce for tile offspring
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A large glucose molecule requires facilitated diffusion but an oxygen molecule does not. what is the question talking about?
Jobisdone [24]
A large glucose molecule requires facilitated diffusion but an oxygen molecule <span>does not is a semipermeable membrane.</span>
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