Question 9: The right answer is B (the second one)
The two major types of cellular, prokaryotic and eukaryotic organisms.
* Prokaryotes are identified with bacteria: most live as single-cell organisms but some bacteria associate in a chain. Prokaryotes have their DNA in the cytoplasm of the cell.
* Eukaryotes have a nucleus, a compartment separated from the rest of the cellular contents, which contains the DNA.
Question 17: The right answer is incomplete dominance.
Incomplete-dominated genetic action is a type of genetic action where one of the alleles outweighs the other in the production of qualitative phenotypes, without the dominant allele completely overshadowing the heterozygous recessive allele. Two copies of the dominant allele are required to produce the dominant phenotype. Since the recessive allele can perform its function at the heterozygous stage, this genotype produces a phenotype (the heterozygous phenotype) which differs little from the dominant phenotype.
In our case the phenomenon of incomplete dominance gave a pink color (between white and crimson) instead of crimson color when the white flowering plant was mixed with the crimson flower plant.
Question 19: The right answer is Speciation occurs gradually.
Speciation is a term that means the formation of new species.
Gradualism is an evolutionary theory according to which new species occur by gradual transformation of ancestral species, by evolution.
These transformations are slow and regular. Otherwise expressed: evolutionary theory according to which speciation is gradually effected by small successive changes over long periods.
I believe the answer is a mineral's crystal shape is determined by its atomic structure.
A There are no surviving species if a mass extinction occurs
Given what we know, we can confirm that the amount of tension in the ventricular myocardium immediately before it contracts is called the preload.
<h3>What is ventricular myocardium tension?</h3>
The ventricular myocardium refers to the cells that make up the ventricles of the heart. These would be the lower chambers in charge of ejecting the blood from the heart so that it may circulate. The tension we are referring to is caused by the stretching of these ventricles as they fill with blood and are preparing to contract.
Therefore, we can confirm that the preload is the name given to describe the amount of tension in the ventricular myocardium immediately before it contracts.
To learn more about the heart visit:
brainly.com/question/16566688?referrer=searchResults
This is the type of bond in which electrons are inequally shared
