The given question is not complete and the complete question is
Marsupials are found in North America and Australia, but they would not have been able to swim across the ocean. According to scientists, how did this group of organisms come to live on two separate continents?
A) Marsupials used to have adaptations that allowed them to swim but lost these adaptations over time.
B) The two groups of marsupials evolved independently of one another on two separate continents.
C) The continents were once connected, and marsupials were able to migrate over the land.
D) The oceans were shallow in prehistoric times, which allowed the marsupials to travel from one continent to another.
Answer:
C) The continents were once corrected and Marsupials are able to migrate over the land.
Explanation:
Marsupials are a group of animals which can give birth to young ones at an early stage and keep them in a pouch until they mature therefore also known as pouched mammals.
The evolutionary studies have shown that marsupials originated on a single landmass called Gondwana which separated into different continents. The marsupials used to live in the Gondwana land but after separation of land, the ancestors of marsupials separated and the marsupials evolved on the landmass of South America and Australia.
Thus, Option-C is the correct answer.
Answer:
I believe the answer is semi-arid climate.
Explanation: They receive more precipitation than deserts, but less than more humid areas.
Answer:
It is the biological concept of species
Explanation:
In 1970 Mayr stated that "species are formed by groups of potentially intercrossing populations that are reproductively isolated from others". The biological concept of species puts emphasis on existence of barriers that limit the gene flow among groups within the same species
- <em>Estrogen.</em>
- <em>Progesterone.</em>
- <em>Prolactin.</em>
- <em>Testosterone.</em>
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<em>A/N</em><em>: hope this help </em>
Answer:
which structure does not belong to the pulmonary circuit?
A) left ventricle
B) right atrium
C) right ventricle
D) pulmonary trunk.
please help and define the difference in pulmonary circuit and pulmonary circulation. thanks