Answer:
The correct answer would be C, midsagittal plane
Explanation:
The midsagittal runs through the middle of an object and is even on both sides. I hope this helps:)
Explanation:
spider webs produces silk thread to build their webs. The silk is produced in silk glands with the help of the spiders Spinnerets....The threads a spider used to construct its web begin as a liquid with a dry quickly in the air.
The source of variations is mutation.
Option (a);
<u>EXPLANATION: </u>
Mutation can create a completely different allele of species and this means that the new version of genes will be created with the mutation. Genetic variation refers to the difference in genes within a population.
An organism's DNA decides how that particular species looks or behaves. With the help of mutation, DNA of that organism is affected, thereby creating a different species altogether.
It is an important source of evolution as it affects the way that the body develops or works.
