Indicate weather the label identifies an adaptive or innate form of defense

Biology

1 answer:

suter [353]2 years ago

4 0

Innate: keratinized epithelium

stratified squamous epithelium hypodermal areolar connective tissue antigen presenting cells major histocompatibility complexes complement (antibody -dependent pathway )

Innate or non-specific response is the first defense against invaders. Components of this response include physical (e.g. skin . mucosa) and chemical barriers against pathogens and cells such as Natural Killer cells, macrophages, neutrophils, dendritic cells, mast cells, basophils, eosinophils. Innate response reacts immediately.

Adaptive: immunoglobulin plasma cells agglutinin

helper t cells memory t cells cytotoxic t cells cd4+cells

t lymphocytes

Adaptive immune response or specific response is specific to the pathogen presented and mediated by lymphocytes, B and T cells. Adaptive immune response creates immunological memory after the first, initial l response to a specific pathogen which leads to enhanced response.

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Shortly after the zygote is formed, it begins the processes of duplication and division. Each resulting new cell has:

seropon [69]

Answer:A. the same number of chromosomes as was contained in the zygote.

Explanation:a zygote is formed when the sperm fertilize the egg .

After fertilization,the zygote undergoes cleavage.cleavage is the mitotic Division of the cells of a zygote to produce daughter cells.

These daughter cells are called blastomere,which contains the same number of chromosomes as the parent cells.the cells formed do not grow in size but continues to divide, forming a mass of cells.

This mass may be solid at first but as cleavage continues,the cells move away from the center,leaving a fluid filled cavity in the middle (blastocoel).

The mass of cells are called blastula.

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Which of the following are characteristics of archaeal cell membranes that probably help them survive at very high temperatures?

n200080 [17]

Answer:

<u>Option-(B,C):</u>

Ether-linked lipids, and Membrane mono-layers,

Explanation:

<u>Archaeal cell membrane:</u>

The archaeal cell membrane is able to resist any severe environmental factors, as the cell is able to live in the most extreme conditions of temperature and are able to perform there various cellular function in such way just because of having a double protective structure in there cell wall or membrane. As the fatty acids present inside the membrane are in connection to the outer lipid molecules(lipids) present in the archaeal cell membrane.