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Anna35 [415]
2 years ago
11

Access of therapeutic drugs to the central nervous system is restricted compared to that of other tissues because of the presenc

e of the _____
Biology
1 answer:
TEA [102]2 years ago
4 0

Answer:

blood brain barrier

Explanation:

hope this helps :(

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Rudolf Virchow's and Louis Pasteur's work resulted in significant contributions to cell theory but also
Vladimir [108]

Answer:

In disproving the theory of spontaneous generation

Explanation:

6 0
3 years ago
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Carl Woese proposed the domain classification a. using shape to classify microbial species b. to divide the single-celled organi
goldfiish [28.3K]

Answer:

c. to account for two major and distinct prokaryotic groups in addition to eukaryotes.

Explanation:

Microbiologist Carl Woese compared the ribosomal RNA sequence of the small subunit of RNA. Various organisms have structurally different small subunit of the ribosomes. According to Woese the molecular composition of rRNA in closely related organisms should be more similar than in distantly related organisms. He analyzed the 16S rRNA of various organisms and observed that there are two distinct groups of prokaryotes. He divided the prokaryotes among two domains: Bacteria and Archaea. He placed all the eukaryotes in the domain Eukarya.

4 0
3 years ago
The theory of evolution that states that a species evolved in spurts of rapid change and then goes through periods of no change
notsponge [240]
I think Punctuated Equallibruim is your answer
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3 years ago
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Explain how independent assortment occurs in cells and explain its importance.
iren2701 [21]

Independent grouping of qualities happens amid meiosis in eukaryotes. Meiosis could be a sort of cell division that diminishes the number of chromosomes in a parent cell by half to deliver four regenerative cells called gametes. In people, diploid cells contain 46 chromosomes, with 23 chromosomes acquired from the mother and a moment comparative set of 23 chromosomes acquired from the father. Sets of comparable chromosomes are called homologous chromosomes. Amid meiosis, the sets of homologous chromosome are separated in half to make haploid cells, and this partition, or grouping, of homologous chromosomes is arbitrary. This implies that all of the maternal chromosomes will not be isolated into one cell, whereas the all fatherly chromosomes are isolated into another. Instep, after meiosis happens, each haploid cell contains a blend of qualities from the organism's mother and father.

4 0
3 years ago
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What factors have led to global warming?
Ludmilka [50]
Factories, cars and cigoretes.

All of these things are polluting the air cuasing it to heat up more which is cuasing global warming 
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3 years ago
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