According to the cell theory, the cell is the basic unit of life. All living organisms are composed of one or more cells. Based on the organization of their cellular structures, all living cells can be divided into two groups: prokaryotic and eukaryotic (also spelled procaryotic and eucaryotic).
Answer: d ribosomes
Explanation: Ribosomes help make protein which helps make enzymes
An alteration to chromosome structure which only involves one chromosome is called MONOSOMY.
Alterations in chromosomes structures usually leads to mutation. Monosomy refers to the condition of heaving a diploid chromosome complement in which one chromosome lacks its homologous partner.
Answer:
When the meteor hit a caused a chain reaction which caused all that and made some cloud that was toxic.
Explanation: