Axon: the messenger cell that carries the command to contract muscles.
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Answer
The answer for first fill in the blank is “ positive”
The answer for second fill in the blank is negative
Answer:
No. They will need to repeat their experiment several times, since the weather and times were different both days.
Explanation:
When a scientific experiment is conducted, one independent variable shall be changed in each experiment at a time so that the results of the experiment are authentic and we can easily determine which independent variable caused a change in the dependent variable.
If more than one independent variable is changed in the same experiment, then it will be difficult to interpret that which variable caused the change.
<u><em>Similarly, Maria and her brother need to repeat their experiment several times with just changing one variable at a time. </em></u>
When two paired chromosomes harbor the same or identical alleles for a given characteristic at nearby loci, this condition is referred to as homologous (i.e. homologous chromosomes)a diploid organism or cell that has the same allele for both a maternal and paternal gene.
The term "homozygous" refers to the presence of the same or identical alleles for a given trait at related loci on paired chromosomes (i.e. homologous chromosomes). An entity with two sets of chromosomes is said to be diploid. Both sets are inherited; one set is from the mother and the other from the father. Based on their locations, each maternal chromosome can be matched with a corresponding paternal chromosome. Homozygous occurs when the same alleles are present at the loci in the corresponding chromosomes. It indicates that the same trait is coded for by both alleles.
A "homozygous" organism is one that carries two copies of either a pair of dominant alleles (such as AA) or a pair of recessive alleles for a given trait. genuinely reproducing organisms
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