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marusya05 [52]
2 years ago
7

Ben observes that his car will not start. What is a good testable hypothesis?

Biology
1 answer:
Arte-miy333 [17]2 years ago
7 0

The car is out of gas

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Wegener's theory of continental drift was largely dismissed by the mid-1900s. What new evidence was able to revive this theory,
gavmur [86]

Answer:

<u>C. The coastlines of South America and Africa were similar in shape, suggesting that they shared a common tectonic plate.</u>

Explanation:

  • As suggested by the Alfred Wegener, the plates of the South America and the African plants had a similar geologic history and thus shared a common tectonic boundary and hence validate the proof of the superclass and the drifting of the plates at various time zones.  
  • Thus after the 1960s the plate tectonic theory came into the limelight and was heavily recognized to be fit the works of the drifting of the continental landmasses.
7 0
3 years ago
The immunoglobulin light chain does not have a D segment. In humans, there are two different possible light chain proteins, term
wlad13 [49]

Answer:

295  

Explanation:

Antibodies (also known as immunoglobulins) are immune system-related proteins that circulate in the bloodstream in order to recognize pathogenic harmful substances (antigens) and neutralize them. An antibody consists of two immunoglobulin heavy chains and two immunoglobulin light chains. There are two types of immunoglobulin light chains: 1-the kappa (κ) light chain, which is encoded by the immunoglobulin κ locus; and 2-the lambda (λ) light chain, which is encoded by the immunoglobulin λ locus. The immunoglobulin light chain is a multidomain protein composed of two domains: 1- the N-terminal variable (V) domain and 2-the C-terminal constant (C) domain. V(D)J recombination is a type of somatic rearrangement process by which T and B cells can assemble different gene segments, which are referred to as variable (V), diversity (D) and joining (J) gene segments. In the question above the number of possible genomic recombination events between immunoglobulin gene segments can be calculated as >> (5 x 35) + (4 x 30) = 295.

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2 years ago
Which action would result in the most rainforest instability?
professor190 [17]

Answer:

cutting down all trees for lumber

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3 years ago
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The awnser is the last one
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Bio20 definition help needed !!
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