C The destruction of the butterflies enviroment would be your best answer. Seeing as that species of betterfly is lives in a warm climate and which is obviously in a rain forest... if it was destroyed there would be no other place like their current home so the species of butterfly would die off.
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(CALCIUM)
regulation in the human body. The role of vitamin D is shown in orange. Vitamin D is carried in the bloodstream to the liver, where it is converted into the prohormone calcifediol. Circulating calcifediol may then be converted into calcitriol, the biologically active form of vitamin D, in the kidneys.
The answers would be:
In Mendel’s crosses, the <u>recessive </u>trait is visible in the F2 generation, but not the F1 generation.
After crossing a tall pea plant with a short pea plant, all of Mendel’s pea plants were tall because it is the <u>Dominant</u><u><em> </em></u>trait.
For seed color, the F2 generation produced both yellow and green seeds because there are two different <u>alleles </u>for each gene.
If you'd like to know more, read on:
Alleles are variants of genes that control traits. There are two alleles called the dominant and recessive allele.
A dominant allele is a trait that is physically expressed even when coupled with a recessive allele. A recessive allele on the other hand is the trait that is masked by the dominant allele.
This is what happened in Mendel's crosses. He crossed a true-breeding tall plant with a true breeding short plant.
P generation
TT - Tall plant
tt - Short plant
The result in the F1 generation that consisted only of Tt plants, where the dominant allele was expressed.
T T
t Tt Tt
t Tt Tt
Then he crossed the F1 generation to produce the F2 generation.
Tt x Tt
The results:
T t
T TT Tt
t Tt tt
As you can see the resulting offsprings shows that the recessive trait occurring, tt. This means that there was a 25% chance that the off springs produced would short plants and 75% that the offsprings produced is tall. This applies also to the color of the seeds if we cross the pea plants based on the color of seeds.
Answer:
Movement in narrow zones along plate boundaries causes most earthquakes. Most seismic activity occurs at three types of plate boundaries—divergent, convergent, and transform. As the plates move past each other, they sometimes get caught and pressure builds up.
A thrill is palpated by the student.
Explanation:
AA thrill is a palpable vibrating or a purring sensation or a murmur felt on the skin surface overlying the turbulent area when an examiner palpates the pulse of a person. Thrill actually represents a vascular pathology due to vascular turbulence arising from incompetency of a heart valve.
A thrill is felt by palmar and finger movements of the hand over the cardiac landmarks and palpating over it.
A thrill felt in the area of the pulmonic valve is indicative of pulmonary stenosis or pulmonary valve regurgitation. The vibrations which the student is feeling are due to the turbulence of blood flowing in the right ventricle.
The pulmonic area thrill can be palpated by palpating at the left upper sternal border area, mostly around the second intercostal space.