White blood cells produce antibodies which fight off the pathogens
Smooth muscle.
Blood vessels contain smooth muscle in their walls. Cardiac muscle is heart muscle specifically. Skeletal muscle is muscle that forms the voluntary muscles.
The failure of homologous chromosomes to separate properly is during meiosis where mutation appear
Answer:
a. the coordinated control of gene expression in bacteria
Explanation:
An operon in bacteria is a collection/cluster of genes that are under the control of a single promoter. It includes 3 components: a promoter, the genes and an operator. The operator is where a repressor binds, and the promoter is where transcription begins.
Operons allow organisms to control the expression of multiple genes in response to environmental cues
3. The water cycle affects the weather i various ways. For instance, it can help control how and when precipitation is present and without the water cycle the weather wouldn’t work as consistently.