Answer:
Vestigial structures
Explanation:
support evolution, by suggesting us that the organism changed from using structure to not using structure or using it for another purpose.
Answer:
Force applied on the ball when it is kicked, gravitation pull and frictional force
Explanation:
When the ball is kicked it starts accelerating, the moment when it leaves the foot acceleration starts decreasing. Here two more forces start acting on it, one is friction force caused by wind and second is tradition pull of the earth. Both these forces slow down the motion of a soccer ball and it slows down and stops.
Answer:
Hydrogen Bonds
Explanation:
In the polymerase chain reaction (PCR) the temperature rises to 90 ° C - 95 ° C, to break the hydrogen bonds, which are the types of bonds responsible for pairing the two strands of DNA, this process is known as denaturation of DNA.
The DNA is extremely stable, due to a large number of bonds (hydrogen bonds) that form between the two strands. If the temperature decreases, these bonds will begin to recompose, until the DNA returns to its original state
By understanding DNA and gene expression, humans have been able to understand how genetic diseases are caused, therefore they have been able to devise gene therapy and other technologies to treat such disease. Second, the understanding has also allowed humans to devise plants that are resistant to pests and drought hence increasing crop yields.
A negative aspect of this understanding is the issue of bioterrorism. In the wrong hands, this technology can be used against society. The technology can be used to modify organisms to make them deliberately harmful to humans. Second is the issue of bioethics. This technology can be used to enhance humans and result to an ‘arms race’ between human races that can tear down the social fabric.
Answer:
The correct answer is corpus callosum.
Explanation:
Corpus callosum is one of the compositions of the brain, which is situated within the cortex and above the thalamus. It is a thick tract of white matter, which associates the left and the right hemispheres of the brain. It is the component of the brain, which permits communication between the two cerebral hemispheres.
It performs an important role of conducting neural information between the two hemispheres of the brain.
