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klio [65]
3 years ago
6

Name the regulatory factor in childbirth

Biology
1 answer:
lilavasa [31]3 years ago
3 0
Homeostasis or the source of body heat
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A grown tiger began its life as a single fertilized egg. Explain why a tiger looks so much different as an adult than it did as
blsea [12.9K]
<span>A tiger looks so much different as an adult than it did as a single fertilized egg because it developed through different stages from being a zygote (fertilized egg), to becoming an embryo (where it experiences intense cellular changes), to becoming a fetus (where it gains a great measure of cell specialization, and develops distinct tissues and organ systems). After birth, the tiger still undergoes further growth and development into adulthood. This is largely regulated by the expression of different genes at different times and also by environmental factors.</span>
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3 years ago
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Why is pH important in the human body?
Nikolay [14]

Answer:

Your body's pH balance, also referred to as its acid-base balance, is the level of acids and bases in your blood at which your body functions best. The human body is built to naturally maintain a healthy balance of acidity and alkalinity.

Explanation:

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3 years ago
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A man heterozygous for long eyelashes marries a woman with short eyelashes. Draw a punnett square to determine the possible geno
zheka24 [161]

Answer:

See the attached for the Punnet square

Likelihood of their child having short eye lashes - 50% or 1/2

Explanation:

Let the allele for eye lashes be represented by E. Homozygous genotype will be EE (for long eye lashes) or ee (for short eye lashes) while heterozygous genotype will be Ee. Assuming long eye lashes allele E is dominant over shor short eye lashes e:

Heterozygous man marries a short eye lashes woman: Ee   x   ee

Ee  x  ee = Ee (long lashes), Ee (long lashes), ee (short lashes) and ee (short lashes.

<em>That is, 50% or 1/2 of the offspring will have long eye lashes while the remaining 50% or 1/2 will have short eye lashes.</em>

8 0
3 years ago
Plz help!!!!<br> Kinda in a hurry to catch up on biology rn anything can help!!!
luda_lava [24]

Answer:

16. Control group: Subject A

17. Independent (manipulated) variable: Type of powder

18. Dependent variable: Itching time

19. Explain whether the data supports the advertisement´s claims about its product. Yes, it does.

Explanation:

  • Control group: The control group is used to identify if there are any other factors influencing the results obtained by the treatment in the study (in this case, the new product), from the results that might be a consequence of other factors. The control group must be selected from the same population as the treatment group. Data from an experimental group are compared with the data from a control group. These two groups are identical in all aspects except for the independent variable that the researcher changes in the experimental group to observe how they affect the individuals.  

The experimental group is the one that receives the experimental procedure, with changes in the independent variable.  There can be several experimental groups. In this case, the experimental group is subject B.

  • Independent (manipulated) variable: Refers to all the variables in an experiment that provoke a response in another variable. An independent variable is the one that changes or is controlled and modified in the experiment to analyze how another variable responds to it. It changes to analyze its effects on the dependent variable. Usually, the independent variable is represented by the X letter. In the exposed example, the type of powder is the independent variable.  
  • Dependent variable: Refers to the variable, which response depends on any change in the independent variable. It represents a quantity of something which value depends on how the independent variable is modified. The change in the dependent variable might be proportional or inversely proportional to the change in the manipulated variable. It is usually identified by the letter Y. In the exposed example, inching time is the dependent variable, that depends on the type of powder used.
  • The data <u>does support</u> the advertisement´s claims about its product. The effect of the new product lasts 50% more than the original product. The old powder produced itching for 30 minutes, while the new product produced itching for 45min (15 more minutes, 50% more).
4 0
3 years ago
Which of the following best represents a function of a lipid within an organism? O Lipids are components of cell membranes All t
Rashid [163]

Answer:

The statement that best represents a function of lipids within an organism is that they are components of cell membranes.

Explanation:

Lipids are biomolecules formed by the binding of fatty acids, important for structure, compound synthesis and energy reserve.

In living beings, one of the most important functions of lipids is to be the main component of cell membranes.

Specifically, phospholipids associate to form a double layer, called lipid bilayer, capable of acting as a semi-permeable membrane, due to its non-polar or hydrophobic character. In this way, <u>membrane lipids fulfill a structural and protective function of the cell and its contents</u>.

Regarding the other options:

  • <em>Proteins are made up of amino acids, not lipids. </em>
  • <em>Lipids are not constituents of the DNA structure.</em>
3 0
3 years ago
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