Answer:
Undifferentiated inner cell mass
Explanation:
Human embryo has two types of cells in its initial stage, trophoblast and inner cell mass. Trophoblast forms the placenta and inner cell mass form the entire human body. Inner cell mass are pluripotent in nature i.e. they can give rise to any body part under right conditions.
Embryonic stem cells are derived from the inner cell mass. They are derived from pre implantation embryo since after implantation the inner cell mass begins to differentiate. Embryonic stem cells can replicate indefinitely without differentiating. They can give rise to all the three germ layers: ectoderm, mesoderm and endoderm. They can treat a number of disorders like genetic disorders, Parkinson's, spinal cord injury, cancers etc.
<span>Your stage in the life cycle is not a factor to consider when determining your risk tolerance.
True.
</span>
Bacteria are prokaryotes and microscopic in size, and they lack a nucleus. DNA is present in the cytoplasm. They do not have membrane-bound organelles.
<h3>What is the size of bacteria?</h3>
- The shapes and sizes of bacteria are extremely diverse.
- The majority of bacteria have a 2–8цm length and a diameter of 0.2-2цm.
- Eukaryotic cells are around ten times larger than bacterial cells.
<h3>What is the difference between prokaryotic and eukaryotic cells?</h3>
- Prokaryotic cells are primitive cells that are primarily present in unicellular organisms; they lack a nucleus but contain a small amount of DNA and do not have membrane-bound organelles.
- In contrast, eukaryotic cells are present in all types of multicellular organisms, including plant and animal cells.
- It possesses a nucleus. All cell organelles are membrane-bound.
- Because they lack a nucleus and other cell organelles and are single-celled microorganisms, they are categorized as prokaryotic organisms.
Bacteria are tiny organisms. They are 200 micrometers in diameter. They do not possess membrane-bound organelles.
Learn more about prokaryotes and eukaryotes here:
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Answer:
its b i did that before at school
Explanation:
Answer:
Mucus is a liquid in your body and it protect you from pathogens
Explanation:
