What does semi-permeable mean in a relation to cell membranes?

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Answer 1

Answer:

Cell membrane is also called as semi permeable membrane.

Explanation:

It allows some chemical compounds to pass through and stops the other from their entry.

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The oldest known fossils on Earth are most similar to: Question 1 answers animals plants fungi bacteria

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the oldest fossil known to emerged is actually BACTERIA.

Need answer quick pls

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Answer:

Explanation:

Yeah I think the answer is B

What is the purpose of using a pedigree?

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careful analysis of the pedigree can determine if a trait has a powerful or heritable characteristics controlled by genes.

Answer:

to understand patterns of inheritance in organisms

Explanation:

Edge

A malaria outbreak causing allele frequencies to change is an example of:nonrandom mating.

the bottleneck effect.

genetic drift.

natural selection.

differential migration

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Answer:

The correct answer would be natural selection.

Natural selection favors the survival and reproduction of the organisms which are better adapted to the environment.

It gradually changes the allele frequency or heritable characters of a population over the generations.

Similarly, during malaria outbreak organisms which are better adapted or resistant against the disease will survive and reproduce successfully. It will increase the frequency of allele associated with resistance or adaptation against malaria.

For example, the carriers of the sickle cell anemia show protective advantages against malaria.

The correct answer is option D, Natural selection.

The survivors within a population attacked by malarial mosquito are the individuals which have high rate of survival and reproductive rates as compared to others. The genetic qualities of these individuals have proved to be beneficial in their survival and thus their future generations consists of individuals which are able to survive in the harsh environmental conditions. This mechanism of survival of the fittest is known as natural selection.

What are the two groups that plants can be placed in?

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fungi and plantae are the two groups

Which type of fossil is Gerobatrachus hottoni most likely to be?A. intermediaryB. phylogenicC. transitionalD. index

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Gerobatrachus hottoni is most likely to be a : C. Transitional Fossil
Transitional fossil refer to the fossils which trains is the intermediary between it's ancestral group and derived descendant group,as a sign of evolutionary process

hope this helps

Answer: transitional

Explanation: took the test right now

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