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marta [7]
3 years ago
9

Which continents contain coal fields that provide evidence for continental drift? Check all that apply.

Biology
1 answer:
Grace [21]3 years ago
4 0

Answer:

Asia

Explanation:

could be south/north america not 100% sure

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Matings between individuals from the two populations of Rhagoletis produce hybrid flies that appear to be healthy and have norma
Mama L [17]
<h2>The correct answer is : C.</h2>

Explanation:

  • According to the question, mating between two populations of Rhagoletis produce hybrid flies.
  • This means that the two population is present in the same habitat or locality, hence they are capable of coming in contact with each other and mate. Hence, the answer cannot be Habitat Isolation.
  • Mating produces hybrid flies. This is possible when the gametes (egg and sperm) of the two different populations are capable of capable of coming close to each other and undergoing fusion (fertilization). Hence, there is no Mechanical Isolation.
  • The zygote formed by the above fertilization is capable of developing into healthy hybrid flies with normal life span. Hence, Pre-zygotic Isolation is absent.
  • But the hybrid flies formed are sterile and not fertile, that is, they are incapable of producing viable gametes which can undergo fertilization and produce a new offspring.Therefore, the eggs laid by the hybrid flies hatch less often. Hence, there is existence of Reduced hybrid fertility.
8 0
3 years ago
How is agrovoltaics different from floatovoltaics? How are they similar?
Marianna [84]

Answer:

they are very similar

Explanation:

8 0
3 years ago
in a 3-point cross, crossovers that occur during the formation of which gametes can be scored using the phenotype of f2 progeny?
JulsSmile [24]

In gametes generated by F1 tri-hybrids and gametes produced by parents from true-breeding populations.

When non-sister chromatids of homologous chromosomes exchange genetic material during meiosis, novel allelic combinations are created in the daughter cells. The locations of three genes in the genome of an organism are identified using a three-point cross. A homozygous recessive individual is crossed with a person who is heterozygous for three mutations, and the progeny's phenotypes are graded. When F1 progeny are self-pollinated, a 3:1 ratio of F2 progeny are created.

To konw more about homologous chromosomes please click on the link brainly.com/question/27258467

#SPJ4

7 0
10 months ago
Which of these organisms would most likely be found at the top of an energy pyramid?
umka2103 [35]
I think it would be C because they are carnivores
8 0
3 years ago
Sequence the skeletal and muscular changes that take place when a person inhales
o-na [289]
During inhalation, you breathe in and this contracts the diaphragm and moves downwards. This increments the chest cavity space which means the lungs are expanding. The intercostal muscles or the muscles in between the ribs also aids in the enlargement of the chest cavity. Both muscles contract to pull your rib cage upward and outward when you inhale. As your lungs expand, air is sucked through your nose and mouth. It then travels down to the windpipe and into the lungs to the bronchus, bronchioles and eventually in the alveoli where air exchange between carbon dioxide and oxygen happens.

The additional accessory muscles of respiration are typically used only under conditions that are of high metabolic demand or respiratory dysfunction. However, in instances where these muscles become stiff and hard, expansion of the rib cage can be quite restricted. The accessory muscles of respiration include sternocleidomastoid and the scalene muscles namely anterior, middle and posterior scalene. Both aid in elevating the rib cage. However, their involvement seems to depend on the degree of respiratory effort. During quiet breathing, the scalenes are consistently active at certain phases while the sternocleidomastoid is quite.



6 0
3 years ago
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