The type of cell that has a life span of about four days is skin cells. Specifically, the outer layer of skin (epidermis) is made up of skin cells that are continuously shed and replaced approximately every few days.
Which type of cell has a life span of four days?(1 point) Responses heart heart colon colon brain brain skin
9 answers
Why do heart cells have different characteristics than skin cells?(1 point) Responses Heart cells reproduce by cell differentiation. Heart cells reproduce by cell differentiation. Heart cells express different genes than skin cells. Heart cells express different genes than skin cells. Heart cells reproduce by mitosis. Heart cells reproduce by mitosis. Heart cells have different DNA than skin cells.
Heart cells express different genes than skin cells. This gene expression leads to the different characteristics and functions of the cells, despite them having the same DNA in the organism. Different genes activate specific traits and functions that allow heart cells to perform their role in the cardiovascular system, while skin cells fulfill their role in protection and sensation.
Which change would likely result from proliferation?(1 point) Responses an organism's cells combine once adding mass to the organism an organism's cells combine once adding mass to the organism an organism's cells combine many times adding mass to the organism an organism's cells combine many times adding mass to the organism an organism's cells multiply once adding mass to the organism an organism's cells multiply once adding mass to the organism an organism's cells multiply many times adding mass to the organism
The correct response is: an organism's cells multiply many times adding mass to the organism.
Proliferation refers to the process by which cells divide and multiply, leading to an increase in the number of cells, which in turn contributes to the overall mass of the organism.
Which of the following is true about cell differentiation when the body tries to heal from an injury?(1 point) Responses Platelets express different sections of RNA in order to create skin cells. Platelets express different sections of RNA in order to create skin cells. Damaged cells proliferate until the wound heals. Damaged cells proliferate until the wound heals. Stem cells differentiate to provide specialized cells that replace damaged tissue. Stem cells differentiate to provide specialized cells that replace damaged tissue. Cells grow during the synthesis phase of the cell cycle in preparation for senescence.
The true statement about cell differentiation when the body tries to heal from an injury is: Stem cells differentiate to provide specialized cells that replace damaged tissue.
During the healing process, stem cells can differentiate into specialized cell types needed to repair and regenerate the damaged tissue.
Are your heart cells the same as your brain cells? Why or why not?(1 point) Responses Yes, during mitosis, the resulting daughter cells are identical which means that all cells in the body are the same. Yes, during mitosis, the resulting daughter cells are identical which means that all cells in the body are the same. Yes, the heart cell and the brain cell have the same function, therefore they are identical. Yes, the heart cell and the brain cell have the same function, therefore they are identical. No, different sections of the cells' DNA are "tuned on" causing heart cells to have different characteristics from brain cells. No, different sections of the cells' DNA are "tuned on" causing heart cells to have different characteristics from brain cells. No, heart cells are stem cells that replicate and create brain cells, therefore they are two different types of cells
The correct response is: No, different sections of the cells' DNA are "tuned on" causing heart cells to have different characteristics from brain cells.
Although all cells in the body contain the same DNA, the expression of different genes leads to the differentiation of cells into various types with unique functions and characteristics, such as heart cells and brain cells.