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stira [4]
3 years ago
9

What is the body of scientific knowledge based on?

Biology
1 answer:
miss Akunina [59]3 years ago
4 0
A observation and hypothesis
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What is osmosis? ???​
lisov135 [29]

Answer:

In biology, osmosis is defined as the net movement of water molecules through a semipermeable membrane (e.g. cell membrane) from an area of higher to an area of lower water potential. Other definitions of osmosis are as follows:

The process of a solvent diffusing through a semipermeable membrane from an area of low solute concentration to an area of high solute concentration

The tendency of water to flow from a hypotonic solution (low concentration of dissolved substances) to hypertonic solution (higher concentration of dissolved substances) across a semipermeable membrane

In chemistry, osmosis is defined similarly. It is the passage of a pure solvent from a solution of lesser to one of greater concentration of solutes when the two solutions are separated by a membrane that selectively prevents the passage of solute molecules while allows the solvent molecules to pass through.

For more information see https://www.biologyonline.com/dictionary/osmosis

3 0
3 years ago
A population of plans going on an island consist of two varieties ones with thorns in the other without over a period of many ye
IRISSAK [1]

problaby different gene mutations  and all that fancy stuff but yes  

4 0
3 years ago
In Drosophila, a very prolific phenotypically normal female was crossed to a phenotypically normal male. All of the female offsp
erastova [34]

Answer:

22 mu

Explanation:

Since maximum number of flies are observed with +pb and s++ phenotype, they are the parental combinations.

Minimum number of flies are observed with +p+ and s+b phenotype hence they are the result of double crossover.

Gene order would be +bp and s++ since it is the only case which would lead to production of above mentioned double crossover. Hence gene b is in the middle of genes s and p.

Single cross over between genes s and b will give progeny +++ and sbp.

Map distance between s and b loci = recombination frequency =

(number of recombinants/ total progeny)*100

= [(single cross over between s and b + double crossover)/total progeny]*100

= [(102+106+7+5/1000]*100

=(220/1000)*100

=0.22*100

=22 mu

3 0
4 years ago
Khalil is an investment underwriter who researches new funds to see if they will be profitable without causing a huge risk to th
xenn [34]

Answer:

Being careful when making decisions

Explanation:

i took the test trust me

5 0
3 years ago
The type of immunity that is general and nonspecific and recognizes microbial invaders quickly is called:_______
GalinKa [24]

Answer:

Innate or natural immunity

Explanation:

Innate immunity is a defense system that we are born with and that protects us against antigens. It is the sum of all defense mechanisms that occur naturally to protect an individual from infectious diseases. They are physiological mechanisms that  are present throughout the entire animal kingdom  and it is an inherent quality of each species. They are not specific to a given pathogen, nor do they generate memory

8 0
3 years ago
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