<span>The vibrations are then sent to three tiny bones in the middle ear: the malleus, incus, and stapes. These bones then amplify the sound vibrations and send them to the cochlea, a snail-shaped structure in the inner ear. The vibrations then cause the fluid inside the cochlea to ripple along the basilar membrane. This ripple stimulates the hair cells that sit on top of the basilar membrane.</span>
Answer:
The physicist himself
Explanation:
Replication in an experiment means to repeat an experiment as many times as possible using the same conditions. This is done to minimize error and ascertain the reliability of the experimental outcome.
An experimenter is responsible for repeating his/her experiments. According to this question, a physicist performs an experiment. The physicist himself should replicate his experiment.
The correct answer is - the variable.
With the experiment, in the way that Dan had decided to perform it, the fertilizer is the variable, as in one of the parts with strawberries he uses fertilizer, while in the other part he doesn't uses fertilizer.
While this kind of experiment may give Dan some answers, and he might notice differences, still he would have to be more detailed in the experiment to see for sure if the fertilizer is the thing that makes some of the strawberries grow better than the others.
Dan should also put all of the strawberries at places that would receive the same amount of light, experience the same weather conditions, receive the same amount of water, and to be planted in a soil of the same quality. Only like this, after putting the fertilizer, Dan can now if it makes any changes or not.
The right approaches to population monitoring methods of swallows and tortoises are point counts and line-transect distance sampling, respectively.
- For point counts, In order to collect the data required to meet the current study's objectives, one must use field techniques methods for selection, counting, capturing, observing, measuring, and marking individuals chosen from the targeted population.
- To count or keep track of the birds of the air, point counts are a frequent field technique (birds).
- The practice involves making observations over a predetermined, set amount of time and keeping track of the number of birds coming from a specific location.
- While the line-transect distance sampling methods in the field are useful for keeping track of the number of tortoises and is appropriate for controlling and tracking the population.
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An organism inherits one chromosome of a homologous pair from the maternal parent and the other chromosome from the paternal parent. Although both chromosomes possess the same genes and loci, they may feature different alleles, or versions, of those genes. For example, a maternally inherited chromosome in a pea plant may contain an allele that codes for a green pod, while the allele for a yellow pod may be found at the same location on the paternally inherited homologous chromosome. The differences between alleles of a gene are determined by deviations in their DNA sequences.
A diploid organism possesses two copies of each type of chromosome, with the potential exception of the sex chromosomes, in each of its cells. Humans, for example, have a total of 46 chromosomes in their cells. Human females have two copies of the sex chromosome called the X chromosome, so they have 23 sets of homologous chromosomes. Human males, however, possess one X sex chromosome and one Y sex chromosome, so they have 22 sets of homologous chromosomes, plus two sex chromosomes that are not homologous.