Spontaneous generation is a concept of the origin of life that can be traced back to the theories of Greek philosophers Aristotle and Plato and persisted through the Enlightenment Period. While some Enlightenment Period scientists experimented to show that life could arise even under controlled conditions, their methods were not sanitary and microbial contamination of the containers used gave dubious results. it was Louis Pasteur who is generally credited with refuting the idea due to his more advanced and precise control of starting conditions that revealed that no life arose from non-life. This strongly established that life cannot arise from non-life.
Today, we have similar superstition by some naturalists who posit that natural processes are capable of producing living entities, whether it is SETI searching for extraterrestrials, NASA astrobiologists searching for aliens and panspermia, or other life enthusiasts similarly inclined.
Currently, the term abiogenesis is used by naturalists to detail the emergence of life from non-life,and has failed miserably to do so. It is very similar to the spontaneous generation idea that was disproven and lost favor in the 1800's. The current understanding strongly favors abiogenesis because it ideologically fits the belief system that all reality is the result of natural processes and forces, but there is not evidence of its validity, not even at the simplest biochemical levels.
apparent magnitude
c.
black hole
b.
parallax
d.
absolute magnitude
Please select the best answer from the choices provided
Answer:
its d
Explanation:
i got a 100 on edg
The primary role of the endocrine system is to control bodily processes through the production and regulation of hormones, which maintain the body's homeostasis, drive growth, metabolism, and sexual development. It comprises of endocrine glands and other organs that secrete hormones.
The primary role of the endocrine system is to control body processes via the production, secretion, and regulation of hormones. These hormones serve as chemical 'messengers' that drive cellular and organ activity, playing crucial roles in growth, metabolism, and sexual development. The endocrine system comprises of endocrine glands, which secrete hormones directly into surrounding fluids to be transported around the body via interstitial fluid and blood vessels.
Key components include the pituitary, thyroid, parathyroid, adrenal, and pineal glands as well as other organs like the hypothalamus, thymus, heart, kidneys, stomach, and small intestine, which contain cells with endocrine functions. Additionally, tissues like adipose tissue and even bones can produce hormones. By regulating the release of these hormones, the endocrine system aids in maintaining the body's homeostasis and adjusts physiological activity in response to changes in internal or external environmental conditions.
#SPJ3
Answer:
Types of variation in genetics
Genetic variation can be caused by mutation (which can create entirely new alleles in a population), random mating, random fertilization, and recombination between homologous chromosomes during meiosis (which reshuffles alleles within an organism's offspring)
other answer
There are three sources of genetic variation: mutation, gene flow, and sexual reproduction. A mutation is simply a change in the DNA. Mutations themselves are not very common and are usually harmful to a population. Because of this, mutations are usually selected against through evolutionary processes