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kaheart [24]
3 years ago
14

Populations of coastal lodgepole pine are separated along an environmental gradient of soil pH that changes from neutral pH near

the shoreline to extremely acidic pH approximately 8 km away from the shore. Populations of lodgepole pine inhabiting the ends of this environmental gradient (i.e. neutral pH versus extremely acidic pH soils) have diverged in a number of phenotypic characters, as well as cannot interbreed. What model of speciation is this pattern consistent with?
Biology
1 answer:
77julia77 [94]3 years ago
7 0

Answer:

Parapatric speciation  

Explanation:

There are different types of speciation. Parapatric speciation consists of new species evolving from a continuous distribution. That is, there is no physical barrier that might impede the gene flow,  in fact, it might continue during the speciation process.  

There is an environmental gradient that determines different phenotypes for different environmental conditions. One phenotype is more adapted to one of the distribution extremes than the other phenotype. In the exposed case, the environmental gradient is given by the differences in pH.

In the border between the environmental extremes, there is the primary hybrid zone, where both phenotypic forms might meet and hybridize.

   

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Please help, any unnecessary answers will be reported. Thanks :)
BigorU [14]

The answer is Eye color

Explanation:

Because if both your parents have green eyes you inherit green eyes

6 0
3 years ago
6. If an atom has 8 protons, 8 neutrons and 8 electrons and then loses an electron, what is it? What is its charge?
Leno4ka [110]

Answer: it is a cation (a positively charged ion). its charge is (+). It will have one positive charge.

Explanation: Ions are charged atoms. Ions can be positively charged or negatively charged. A positively charged ion is called a cation while a negatively charged ion is called an anion. Cation is formed when an atom loses one or more electrons while an anion is formed when an atom gains one or more electrons. Normally, an atom has no charge that is, it is neutral because an atom always have equal number of protons and electrons. Protons have positive charge while electrons have negative charge. For instance when atom which have 8 electrons and 8 protons loses one electron, it will then have 7 electrons and 8 protons, thereby making the atom to have a positive (+) charge.

7 0
3 years ago
The enzyme responsible for converting androgens to estrogens is select one:
Lilit [14]
The answer is C. Aromatase
6 0
3 years ago
During transcription the DNA base sequence is transcribed into a complementary mRNA sequence. A codon table like the one shown b
DIA [1.3K]

Answer: Option B) No, even though the DNA sequence changed, the sequence still codes for the same amino acid, so no change in phenotype will occur.

Explanation:

Since the triplet codon ACG codes for the amino acid threonine, so also ACA codes for threonine, the single base change of Guanine (in ACG) to Adenine (ACA) is insignificant due to the degeneracy of the genetic code.

Thus, the sequence still codes for the same amino acid, so no change in phenotype will occur

4 0
3 years ago
During a growth spurt, which is (are) likely to grow first?
dlinn [17]

The answer are the hands and feet.  It is the continuously changes of the characteristics of the body, most noticeable in height and weight.  The ages 13-15 and 17-18 the two major brain growth spurts occur. In times of growth spurts the changes is visible during the first year of puberty.

4 0
3 years ago
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