Answer: These changes can be caused by environmental factors such as ultraviolet radiation from the sun, or can occur if an error is made as DNA copies itself during cell division. Acquired mutations in somatic cells (cells other than sperm and egg cells) cannot be passed to the next generation.
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Endotherms, such as birds and mammals, use metabolic heat to maintain a stable internal temperature, often one different from the environment. Ectotherms, like lizards and snakes, do not use metabolic heat to maintain their body temperature but take on the temperature of the environment.
Answer:
histrionic
Explanation:
Patients with histrionic personality disorder use their physical appearance, acting inappropriately seductive or provocative, to attract the attention of others. They have no sense of self-direction and are highly suggestible, often acting submissively to retain the attention of others.
Histrionic personality disorder is characterized by a widespread pattern of excessive emotionality and attention seeking. The diagnosis is by clinical criteria. Treatment is with psychodynamic psychotherapy.
Amy has many symptoms related to histrionic personality disorder, but only a professional diagnosis can confirm if she has the disease.
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Answer:
Mitosis:
Mitosis has 4 stages total and produces 2 diploid daughter cells. The purpose of mitosis is for cellular proliferation. Since we only get 2 daughter cells, the chromosome number remains the same and generic variation doesn't occur.
Meiosis:
Meiosis has 8 stages total and produces 4 haploid daughter cells. In the shortest nutshell, meiosis is mitosis but twice. The purpose of meiosis is sexual reproduction. Since we get 4 daughter cells, the chromosome number is halved and generic variation does occur.
