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Ludmilka [50]
3 years ago
8

which process would probably create the most rapid change in earths surface ? A erosion B heating Cvolcanic eruption or D weathe

ring
Biology
1 answer:
bogdanovich [222]3 years ago
6 0
Volcanic eruption would change the surface the quickest
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1 3.2.4 Quiz: Cellular Transport
artcher [175]

Your image isn't clear so I couldn't see the proper option but lucky for you I have seen this question before so I will tell you the answer.

The answer is option D (facilitated diffusion).

3 0
1 year ago
A geneticist crossed fruit flies to determine the phenotypic ratio. The geneticist crossed a fly with blistery wings and spinele
kondor19780726 [428]

Complete question:

A geneticist crossed fruit flies to determine the phenotypic ratio. The geneticist crossed a fly with blistery wings and spineless bristles (bbss) with a heterozygous fly that had normal wings and normal bristles (BbSs). Which proportion of offspring that are dominant for both traits in would you not expect based on Mendel's law of independent assortment? 1/2 , 4/16, 25% , or 1/4

Answer:

1/2 is the proportion of the offspring that is NOT expected among individuals that are dominant for both traits.

4/16 = 1/4 = 25% of the progeny and the correct expected proportion of individuals that are dominant for both traits.

Explanation:

<u>Available data</u>:

  • Cross:  a fly with blistery wings and spineless bristles with a heterozygous fly that had normal wings and normal bristles
  • Recessive trait: blistery wings and spineless bristles
  • Dominant trait: normal wings and normal bristles

Let us say that:

  • B is the dominant allele for normal wings
  • b is the recessive allele for blistery wings
  • S is the dominant allele for normal bristles
  • s is the recessive allele for spineless bristles

Parentals)        bbss       x        BbSs

Gametes)  bs, bs, bs, bs     BS, Bs, bS, bs

Punnett square)    BS        Bs         bS        bs

                     bs    BbSs    Bbss     bbSs    bbss

                     bs    BbSs    Bbss     bbSs    bbss

                     bs    BbSs    Bbss     bbSs    bbss

                     bs    BbSs    Bbss     bbSs    bbss

F1)  4/16 = 1/4 = 25%  of the progeny is expected to be BbSs, dyhibrid individuals, expressing normal wings and normal bristles

     4/16 = 1/4 = 25% of the progeny is expected to be Bbss, expressing normal wings and spineless bristles

     4/16 = 1/4 = 25% of the progeny is expected to be bbSs, expressing  blistery wings and normal bristles

     4/16 = 1/4 = 25% of the progeny is expected to be bbss, expressing  blistery wings and spineless bristles    

5 0
3 years ago
For a thirsty person, drinking water serves to reduce a basal metabolic rate. b homeostasis. c an instinct. d the set point. e a
strojnjashka [21]

Answer:

e) a drive

Explanation:

We felt  thirsty when we have fluid imbalance in our body  either we have less water or we have more concentration of osmolytes such as sodium in blood. The brain detect the change produce the effect for the intake of water.

  • However thirst is a vital primordial emotion that motivates us for fluid intake. So the emotion produces a drive to quench it.
  • Some recent studies refers it as basic instinct to drink water.
5 0
3 years ago
In a trophic pyramid, which of the following populations would be found in the trophic level directly above the producers?
bogdanovich [222]
Where are the following populations?
8 0
2 years ago
Read 2 more answers
Water molecules stick to other materials due to its polar nature. This property is called
denis23 [38]
The property is called Adhesion 
8 0
3 years ago
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