I think the correct answer from the choices listed above is option A. When crossing-over takes place, chromosomes exchange corresponding segments of DNA. Corresponding genes on non-sister chromatids are exchanged at chiasmata. Hope this answers the question.
The set point is the normal, or target, value for something.
I pretty sure its a by making more living things
Answer:
The correct answer will be- true
Explanation:
In Human skeletal system, the point at which the two bones meet is known as the joint which is responsible for the stability of the body and the movement.
The joints can be classified on the basis of their structures and the functions (amount of movement).
On the basis of movement, the bones are classified into
1. Synarthroses (immovable joints)- the joints which do not move like sutures.
2. Amphiarthroses (slight movement)- the joints which slightly moves like symphyses
3. Diarthroses (free movement)- the joints which freely moves like synovial joints.
Thus, true is the correct answer.
The Burgess Shale is a rock formation that is known for having an abundance of soft bodied organisms preserved in shale. This formation is significant because it preserves organisms from the Cambrian Explosion. The Cambrian Explosion is a period in time that coincides with the Pre- Cambrian- Cambrian boundary around 542 million years ago. The period represents an unusually rapid radiation of organisms.
Fossils of the Burgess Shale are thought to be well preserved because most were thought to be buried fairly rapidly and in conditions that had little or no oxygen. The rate of decomposition is slowed in these conditions so soft body parts of the organisms were preserved for millions of years in the mud-stone that eventually became lithified to shale. <span />
