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NeX [460]
3 years ago
9

Blood pressure rises and falls in a pattern corresponding to the phases of the

Biology
1 answer:
olganol [36]3 years ago
5 0
I believe that blood pressure rises and falls in a pattern corresponding to the phases of the cardiac cycle. The maximum pressure achieved during ventricular contraction is called the systolic pressure while the lowest pressure that remains in the arterial system during ventricular relaxation is the diastolic pressure. 
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Blue Genotype BB Yellow Genotype YY What would be the Genotype for Blue and Yellow? A. BY, or YB B. GG C. Not Possible D. BuYe
Fittoniya [83]

Answer:

A. BY, or YB

Explanation:

This question is depicting a phenomenon in inheritance called CODOMINANCE, which is a type of non-mendelian inheritance in which two alleles of a gene both express themselves in that gene. In this question, the allele for blue color (B) is codominant with the allele for yellow color (Y).

This means that an individual that has a blue phenotype will possess the genotype BB while an individual that has a yellow phenotype will possess the genotype YY. Hence, in an heterozygous state in which both alleles combine to produce a simultaneous blue and yellow phenotype, the genotype will be BY or YB.

7 0
3 years ago
The brain and spinal cord begin as an embryonic structure called the neural plate. True or False
Simora [160]

Answer:

True

Explanation:

Ans;true

The neural plate is one of the features exclusive to the embryonic development of chordates. It is located dorsally to the notochord. The neural plate is the rudimentary nervous system of the embryo. During early development ,the neural plate is formed from the ectodermal layer . It undergoes changes in the position and arrangement of it's cells to form the brain and the spinal cord which comprises the central nervous system. It forms tissues and eventually organs by the deepening of the groove which forms ridges which eventually folds and fuses to form the neural tube . The tube differentiates into the prosencephalon, the mesencephalon and the rhombencephalon, from which the organs are formed

5 0
3 years ago
A student wants to determine the mass of a large plastic cube. The student measures the volume of the cube as
arsen [322]

Answer:

see in explaination

Explanation:

Density (D) is a quantity defined as mass (m) per unit volume (v): D = m ÷ v. Since these three quantities are related, you can find one of them if you know the other two. This is more helpful than it sounds because density is often a known quantity that you can look up, assuming you know the composition of the material.

Calculations are straightforward for solid objects, but things get more complicated for liquids, where density changes with temperature, and for gases, for which density is dependent on temperature and pressure.

7 0
2 years ago
Which is a biotic factor that characterizes the tropical savanna biome?
Oksi-84 [34.3K]

Answer: D

Explanation:

Seasons are not biotic bc they are not living, and we know from playing Minecraft that savannas are not covered in conifers but are covered in grass and a few trees

*Beep Beep*

Lettuce

8 0
3 years ago
The bohr model of the atom stated that the energy of an electron was quantized and therefore electrons could only exist in certa
rjkz [21]

Explanation:

Bohr model is able to explain the electromagnetic spectrum produced by different atoms of different elements. This is because an electron around the nucleus of an atom occupies distinct orbital levels around the nucleus and not in between. When an electron absorbs a specific wavelength of electromagnetic spectrum it 'hops' to an upper electron energy level equivalent to this wavelength of radiation. When the atom 'hops' to a lower orbital level it releases ta specific wavelength of radiation that is equivalent to the difference in the energy levels. This was unaccounted for in the Rutherford's planetary model.

The electron cloud model is thought to be an improvement on the Bohr model because it accounts for the Heisenberg Uncertainty Principle which stipulates that it is impossible to ascertain the momentum and location of an electron at the same time (because merely viewing an electron using light -or any kind of radiation - will change its direction and velocity). This model explains the likely position of an electron using probabilistic equations. The electron cloud model can therefore be used to explain bonding between atoms.

Learn More:

For more on atomic theories check out;

brainly.com/question/12412328

brainly.com/question/12083113

#LearnWithBrainly

3 0
3 years ago
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