Sanderson's cross-national study indicated that international migration increases overall levels of human development. Thus, the correct option is A.
<h3>What is Migration?</h3>
Migration may be defined as the movement of people from one place to another in search of resources better than their native one.
International migration increases the overall standards of human development because it initiates new opportunities and trade aspects of people of one country to another.
It also leads to improved human development outcomes in major areas like education, health, and finance.
Therefore, the correct option for this question is A.
To learn more about International migration, refer to the link:
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The earth is about 6,000 years old.
That is TRUE, which makes updating maps extremely easy and convenient, not to mention it's the key element in GPS systems.
Answer:
The water vascular system of echinoderms (B) functions in locomotion and feeding.
Which of the following combinations of phylum and description is correct? (C) Platyhelminthes—flatworms, gastrovascular cavity, no body cavity
Explanation:
Echinoderms are marine animals. They have a water vascular system that make them able to move (locomation), respiration and food and waste transportation. This system is full of different canal along the body.
Echinodermata has not a radial symmetry as a larva, in fact it has a bilateral symmetry and coelom present. When it comes to Nematoda, they are roundworms and have a pseudocoelomate. Finally, porifera has a gastrovascular cavity and no coelom.
Answer is true because its the closest so far in our galaxy
