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Ugo [173]
2 years ago
10

Can I have help pls I do not understand this

Biology
1 answer:
Serggg [28]2 years ago
8 0
Thermal conductivity is not the answer for this question because it does not work
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An organism's fitness can be best measured by observing its
dangina [55]
An organism's fitness can be best measured by observing its NUMBER OF OFFSPRING. Healthy and fit organisms tend to give birth to large number of offspring in a sequential manner while less fit animals do not produce much young ones and the birth of their offspring is often far in-between .
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3 years ago
In some zoos, rare crosses between a male lion and a female tiger have produced hybrid offspring called "ligers." Male ligers ar
Pachacha [2.7K]

Answer:

a prezygotic barrier

Explanation:

Both wild tigers and lions are said to be reproductively isolated.

Reproductive isolation is defined as the existence of barrier between organisms of different species such that they cannot reproduce.

The mechanisms of reproductive isolation varies. While some act to prevent the formation of zygotes (in case of mating) between organisms of different species, some ensures that the resulting zygotes are invalid.

Reproductive isolation mechanisms that act to prevent fertilization and formation of zygotes are referred to as prezygotic mechanisms while those that ensure that invalid zygotes result (in case of successful fertilization) are referred to post zygotic mechanisms.

<em>The natural differences in the ranges of wild tigers and lions ensure that both animals do not mate with each other, let alone results in zygote. This is a form of pre-zygotic reproductive isolation mechanism.</em>

7 0
2 years ago
In the snail cepaea nemoralis, an autosomal allele causing a banded shell, u, is recessive to the allele for an unbanded shell,
Alex Ar [27]
There will be no recombinant progeny in absolute linkage. The F1 inherted banded and yellow alleles (BBCY) together on one chromosome from the banded yellow parent and unbanded and brown allels (BOCBw) together on the homologous chromosome from the unbanded parent. All the F1 gametes will contain only these two allelic combinations, in equal proportions if there is no recombination. F2 cross progeny will have 1/2 banded, that is yellow and 1/2 unbanded brown.
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3 years ago
A property of life known as energy processing refers to the fact that living things:_______.A. can reproduce.B. obtain energy fr
maksim [4K]

Answer:

B

Explanation:

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Which was most likely an effect on society that resulted from improvement in handling blood during world war l and world war ll?
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Answer:

Effective food supply was most likely an effect on society that resulted from improvements in blood handling during World War I and World War II.

Explanation:

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