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4vir4ik [10]
4 years ago
10

How does pregnancy begin?

Biology
2 answers:
marissa [1.9K]4 years ago
6 0
B Fertilization Answer Answer Answer Answer<span>
</span>
Mashcka [7]4 years ago
4 0
Hello,

The answer is option B <span>Fertilization.

Reason:

The answer is option B because fertilization is when the sperm contacts with the egg which starts the pregnancy. Its not option A because its differentiation is the process of comparing. Its not option C because its the action of departing which has nothing to do with pregnancy. Its also not option D because that is used for shoes, or tires which is the grip it has on a surface.

If you need anymore help feel free to ask me!

Hope this helps!

~Nonportrit </span>
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True or false: the breakup of pangea resulted in warm wet global climates?
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The answer is false to your question.

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Which molecule will undergo only london dispersion forces when interacting with other molecules of the same kind?.
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Butane, C₄H₁₀ will undergo only London dispersion forces when interacting with other molecules of the same kind.

London dispersion force:

  • The weakest intermolecular force is called the London dispersion force.
  • When the electrons in two nearby atoms occupy positions that cause the atoms to temporarily form dipoles, the resulting transient attractive attraction is known as the London dispersion force.
  • There are instances when this force is referred to as an induced dipole-induced dipole attraction.

     Butane molecules only exhibit London dispersion forces because they are non-polar and have a symmetrical distribution of electron density.

<u><em>Butane:</em></u>

  • It is a covalent non-polar molecule. Every C-C and C-H bond is non-polar. This is because there is little or no electronegativity difference between C and C in C-C bonds and none between C and H in C-H bonds.

Learn more about the London dispersion force here,

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The theory of vitalism has been rejected by present day scientists. Describe vitalism. Describe what scientists now think about
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<span>Vitalism is a belief that there is difference between living and noliving things. Living things are governed by different principles which are not applicable for nonliving things. The scientist now reject the vitalism since it lack scientific proof. It is considered only as spiritual. modern scientist believe life originated from non living things in the course of time.</span>
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Answer:

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Genealogy is the study of families, family history, and the tracing of their lineages. <em>Genealogists use oral interviews, historical records, genetic analysis, and other records to obtain information about a family and to demonstrate kinship and pedigrees of its members.</em>

Numismatics is the study of the physical embodiment of various payment media (i.e. currencies). <em>The study of numismatics as it applies to coins is often in the research of the production and use of the coins to determine their rarity.</em>

Systematics, or Taxonomy, is the study of the kinds of organisms of the past and living today, and of the relationships among these organisms. <em>Systematists collect and study the variety of plants and animals and group them according to patterns of variation.</em>

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