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Mashutka [201]
3 years ago
7

The phenomenon of single or double fertilization is unique to the seed plants

Biology
1 answer:
Ksju [112]3 years ago
5 0

Answer:

Double fertilization

Explanation:

The phenomenon of double fertilization is unique to flowering plants (i.e., angiosperms). Each pollen grain produces two male gametes (sperm cells), one of which fertilizes the egg to form the zygote, whereas the other sperm fuses with polar nuclei in the female gametophyte in order to form a triploid cell (3n) called endosperm. Subsequently, this endosperm will support embryonic growth by supplying storage nutrients and by serving as a mechanical barrier during seed development and germination.

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Gregor Mendel demonstrated that traits are passed from parents to offspring independently of one another under all circumstances
inn [45]

Answer;

A.) a law

Explanation;

-A law is a statement based on repeated experimental observations that describes some phenomenon of nature. Proof that something happens and how it happens, but not why it happens.

- A Theory is a well-substantiated explanation acquired through the scientific method and repeatedly tested and confirmed through observation and experimentation.

-A Hypothesis is a proposed explanation for a phenomenon made as a starting point for further investigation.

8 0
3 years ago
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A nurse who suspects that a newly admitted infant is the victim of child abuse assesses the parents' interaction with their baby
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7 0
3 years ago
Which statement describes a common measurement error?
Kitty [74]
Answer – C (Using instruments that have not been calibrated).

When the integrity of an instrument’s calibration has been compromised (usually due to exposure to a shock, vibration, or physical damage), it needs to be calibrated; failure to do this inevitably leads to inaccurate measurement; this is a very common measurement error.
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3 years ago
The proteins that help defend the body against bacteria, toxins, and allergens are called
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The proteins that help defend the body against bacteria, toxins, and allergens are called antibodies. The antibody<span> (Ab) protein is also known as an immunoglobulin (Ig).
</span>These<span> large Y-shaped proteins are</span><span> produced by the immune system in order to prevent the body in response to the presence of a foreign substance. The foreign substance is called antigen.
</span>
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3 years ago
Tim is overweight. his physician has decided to test him to see if there is a problem with the regulation of his metabolism. whi
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It would be C. Thyroid 
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