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sineoko [7]
2 years ago
9

50 POINTS + BRAINLIEST TO THE CORRECT ANSWER

Biology
2 answers:
I am Lyosha [343]2 years ago
8 0

Answer:

c. potential Hydrogen strips and written observations of stream water

liubo4ka [24]2 years ago
5 0
D. Graphs are the best way to communicate results, that’s why every lab report or professional study enclosed them as the main part of the analysis section.
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30 grams of ammonia (NH3), nitrite (NO2-), and nitrate (NO3-) are added to a soil sample.
vichka [17]

Answer:

stay the same, decrease, increase in that order

4 0
3 years ago
Biological diversity is a term used to describe?
ale4655 [162]
D, different species in the world
7 0
3 years ago
Suppose we were successful in identifying 12 mutants using a screen for identifying conditional mutants of S. cerevisiae in whic
Marina CMI [18]

Answer:

Each mutant would be mated to wild type and to every other mutant to create diploid strains. The diploids would be assayed for growth at permissive and restrictive temperature. Diploids formed by mating a mutant to a wild type that can grow at restrictive temperatures identify the mutation as recessive. Only recessive mutations can be studied using complementation analysis. Diploids formed by mating two recessive mutants identify mutations in the same gene if the diploid cannot grow at restrictive temperature (non-complementation), and they identify mutations in different genes if the diploids can grow at restrictive temperature (complementation).

Explanation:

Recessive mutations are those whose phenotypic effects are only visible in homo-zygous individuals. Moreover, a complementation test is a genetic technique used to determine if two different mutations associated with a phenotype colocalize in the same <em>locus</em> (i.e., they are alleles of the same gene) or affect two different <em>loci</em>.  In diploid (2n) organisms, this test is performed by crossing two homo-zygous recessive mutants and then observing whether offspring have the wild-type phenotype. When two different recessive mutations localize in different <em>loci</em>, they can be considered as 'complementary' since the heterozygote condition may rescue the function lost in homo-zygous recessive mutants. In consequence, when two recessive mutations are combined in the same genetic background (i.e., in the same individual) and they produce the same phenotype, it is possible to determine that both mutations are alleles of the same gene/<em>locus</em>.

5 0
2 years ago
Peppered moths have learned to stay still (not move) on a tree trunk during daylight hours to avoid being eaten by birds. This i
miv72 [106K]

Answer:

Behavior adaptation

Explanation:

Behavior adaptation is where a animal behaves in a different manner that suits its environment or keeps the animal safe

8 0
2 years ago
When a sudden change in the environment, such as a flood or fire, reduces the size of a population, the survivors' collective ge
maksim [4K]

Answer: option A - bottleneck effect

Explanation:

Whenever sudden change caused by human or natural disasters occurs in the environment leading to the reduction of organisms or biodiversity present to a lower size, such condition is referred to as BOTTLENECK EFFECT.

3 0
3 years ago
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