Answer:
They look like X's (X shape)
Explanation:
The X shape are replicated chromosomes and are called the sister chromatids.
Answer:
chromosomes r the threadlike structure found in the nucleus of living cells, carrying genetic information in the form of genes.
I believe the answer is B. They were no longer able to acquire the necessary characteristics for survival in a changing environment. I think it is B. because trilobites mostly went extinct because of the event that wiped out 95% of Earth's species. So they didn't have the characteristics to survive. Hope I helped!
Answer:
Fossil record, history of life as documented by fossils, the remains or imprints of organisms from earlier geological periods preserved in sedimentary rock. Their ages can be established by comparing the fossils in each layer.
The reaction against your skin is equal to the force put upon the object.
Zero net force is when forces are balanced, ie no velocity.
All forces put on an object have an equal and opposite reaction.
