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AnnZ [28]
3 years ago
8

The concentration of solutes in a red blood cell is about 2%. Sucrose cannot pass through the membrane, but water and urea can.

Osmosis would cause red blood cells to shrink the most when immersed in which of the following solutions? Why?
(a) pure water(b) a hypertonic urea solution(c) a hypotonic sucrose solution(d) a hypertonic sucrose solution
Biology
1 answer:
Liula [17]3 years ago
4 0

Answer:

D: a Hypertonic sucrose solution

Explanation:

Sucrose cannot pass through the membrane and Hypertonic solution's cause cells to shrink.

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You cross two red griffins with blue eyes and produce offspring that are: red with blue eyes, red with green eyes, white with bl
sergejj [24]

Answer:

The reason for the offspring to present these genotypes is that during the formation of the gametes, the alleles separate and are inherited independently, therefore they can generate several different phenotypic combinations.

Explanation:

In order for an offspring to present very different phenotypes, as shown in the question above, it is necessary that the two red griffins with blue eyes that were crossed are heterozygous. Thus it will be possible for the offspring to present a wide variety of phenotype, according to Mendel's second law.

Mendel's second law is called the Law of segregation. This law explains that the alleles (which determine the characteristics of individuals) are separated in the formation of gametes and inherited by the offspring of a cross independently, and can generate different combinations of phenotypes, when the parents of a cross are heterozygous.

8 0
3 years ago
Write a paragraph on testing probability
VashaNatasha [74]

Explanation:

Probabilities are described as ratios of favorable event outcome to the total number of event outcomes.

This is written as...

P (E) =\frac{n(E)}{n(S)} \\

where...

E= the number of times the event occurs

S= the number of trials

In biology experiments, hypotheses are formed based on research questions, and tested with the use of variables  to provide a particular outcome. Statistics allows for testing data for consistency with the hypothesis, while statistical probability testing can be used in experiments to determine a range of outcomes, from genetic inheritance, evolutionary rates to theoretical experimental results.

In these statistical models, probability distributions are functions that give probabilities for certain event outcomes within an experiment (a set of trials). These may be either continuous, taking a value within a range of two numbers; or discrete, which may be either of two specified values. Discrete probability distributions list each value that a random variable may possibly take on.

Further Explanation:

For example, two types of probability distributions are employed in experimental biology:

Binomial distributions, which are discrete distributions,  provide probability of a certain number of successful events for x  a random variable, in a specific number of trials, n; here, the probability of success of an individual trial is constant at P and only one of two outcomes are possible- this is sampling with replacement.

where...

b(x;  n, P)-the probability that an experiment of n trials results in x successes

nCx- the number of combinations of n things at r time

b(x;  n, P) = [ nCx ]* P^{x}  * (1-P)^{n-x}\\

<em>This is often used in determining potential outcomes before data collection.</em>

A type of continuous distribution, the student's t-test, compares standard deviations and means from two sets of samples or groups to check for significant differences between them.

t= \frac{(x_{1} - x_{2}) }{\sqrt{(\frac{(S_{1}) ^{2} }{n1} }+ (\frac{(S_{2}) ^{2} }{n2 }}

where...

  • x1 and s1 are the mean and standard deviation of sample 1 respectively
  • x2 and s2 are the mean and standard deviation of sample 1 respectively  
  • n1 and n2 are sample sizes in samples 1 and 2 respectively

The null and alternate hypotheses typically theorize the likelihood and significance of certain event outcome probabilities. Critical values of t, along with degrees of freedom are used to determine a range of probable outcomes; probability or p- values along with this range, are used to determine whether either hypothesis is rejected or accepted.

<em>For instance, significant differences between an experimental control and a specific treatment group would show that these occurrences are not due to sampling errors or random chance...</em>

Learn more about calculating probability at brainly.com/question/4021035

Learn more about calculating event probability at brainly.com/question/6649771

#LearnWithBrainly

5 0
3 years ago
three students measured the height of a lab table each using a different meter stick. One student reported a height of 98cm, ano
elena55 [62]
The difference between the two students that we know of is that they used a different meter stick. So the difference would be best attributed to  the different tools they used.

Note, this is quite a huge difference. It's likely that one of the sticks, or both, are quite defect.
3 0
3 years ago
Antibodies are made when animals detect a foreign antigen. All mammals carry albumin in their blood. How was a rabbit antibody a
belka [17]
<h2>Rabbit Blood</h2>

Explanation:

  • <em>Blood is the primary transporter</em> mode for the transport of components essential for digestion all through the body
  • Red platelets are one of the most significant components of blood
  • Red platelets (rbcs) transport oxygen to the body's tissues and trade it for carbon dioxide which is carried to the lungs for elimination  
  • Red platelets are shaped in the bone marrow of Stem cells in the red bone marrow called hemocytoblasts offer ascent to the entirety of the formed components in blood
3 0
3 years ago
which statement best describes the relationship between a dependent variable and an independent variable in a scientific investi
maria [59]
An independent variable is the one that you change and the dependent variable that changes when he independent variable changes.
6 0
3 years ago
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