1. the himalayas in south africa are an example of what type of plate boundary?

convergent oceanic-continental boundary

convergent continental-continental boundary

divergent boundary

transform fault boundary

2. volcanic island arcs are associated with what type of plate boundary?

divergent boundary

convergent continental-continental boundary

convergent oceanic-continental boundary

convergent oceanic-oceanic boundary

3. continental volcanic arcs are associated with what type of plate boundary?

convergent continental-continental boundary

convergent oceanic-continental boundary

transform fault boundary

convergent oceanic-oceanic boundary

!

1 - Convergent Continental-Continental boundary

              2 - Convergent Oceanic-Oceanic boundary

              3 - Convergent Oceanic-Continental boundary

Explanation:

When two continental plates collides, then sandwich pattern takes place, forming the great Himalaya. For example, the formation of the Himalaya due to the collision between Eurasian plate and the Indo-Australian plate.

When two oceanic plates collides, it creates a subduction zone and volcanic island arcs are created. For example, the Mariana island.

When an oceanic plate collides with a continental plate, the denser oceanic plate gets subducted beneath the less denser continental plate, forming the continental volcanic arcs. For example, the San Andes mountain.

Thus, the correct answers to the given questions are mentioned above.

an individual’s sex (i.e., whether they are a male or female) is determined by the sex chromosomes. most people have two sex chromosomes, one that is inherited from their mother and one that is inherited from their father. typically, females have two x chromosomes (xx) and males have one x chromosome and one y chromosome (xy). conditions caused by changes (“mutations”) in genes located on the x chromosome are considered x-linked.

x-linked recessive inheritance

most x-linked conditions are recessive. this means that in a person with two x chromosomes (most females), both copies of a gene (i.e., one on each x chromosome) must have a change or mutation whereas in a person with one x chromosome (most males), only one copy of a gene must have a mutation. a female with a mutation in one copy of a gene on the x chromosome is said to be a “carrier” for an x-linked condition. a male with a mutation in a gene on the x chromosome is typically affected with the condition. because females have two copies of the x chromosome and males have only one x chromosome, x-linked recessive diseases are more common among males than females. however, x-linked recessive diseases can occur in both males and females.

for x-linked recessive disorders, an unaffected carrier mother who has a mutation in a gene on the x chromosome can transmit either the x chromosome with this mutation or a “normal” x chromosome to her children. if the father is unaffected, none of her daughters will be affected and all of her daughters will be unaffected—since they will inherit at least one normal x chromosome from their father. however, each daughter will have a 50% chance of being an unaffected carrier like her mother and a 50% chance of both x chromosomes being normal.