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just olya [345]
3 years ago
5

How does the urinary system differ in males and females?

Biology
1 answer:
sashaice [31]3 years ago
7 0
A female urinates with their vulva and a male urinates with his penis
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Describe the actual and relative sizes of a virus, a bacterium, and a plant or animal cell.
anzhelika [568]

Answer :

The animals are categorized into 2 groups - eukaryotes and prokaryotes. The microbes like bacteria are coming under prokaryotes. They are unicellular organisms and without a true nucleus.

Viruses are the connecting link between the living and non - living. They are smaller than bacteria. The microbes less than 100 micrometer can't be seen by the naked eye. They can only visible under a microscope.

Viruses like polio, flu virus sizes are 10nm. But some of the viruses are also less than 10nm. The size of bacteria is 1 micrometer. The viruses are 10 times smaller than the bacteria.

The eukaryotic organisms are more advanced and multicellular. Their cell size is larger than bacteria and viruses. The red blood cells under the light microscope are 8 micrometers. The typical animal cells like sperm are 60 micrometers and a skin cell is 30 micrometers. The plant cell for example pollen is 90 micrometers.

The eukaryotic cells sizes are more than prokaryotes like bacteria.

3 0
3 years ago
What is a disadvantage of using DNA technology
stellarik [79]
Gene transfer to nontarget species
6 0
3 years ago
Read 2 more answers
Read the following statements that describe how information flows in the nervous system.
anzhelika [568]
The answer is C<span>. 3,2,1,</span>
7 0
3 years ago
Read 2 more answers
Which statement describes a similarity between a eukaryotic and a prokaryotic cell?
klemol [59]

Answer:

C.

Explanation:

Because for answer A, only eukaryotes have DNA, also for B, only eukaryotes have a nucleus and lastly, for D, only eukaryotes contain membrane-bound organelles. hope this helps :)

4 0
2 years ago
Read 2 more answers
In cattle, RR = red, Rr = roan, and rr = white. What are the predicted color phenotypes for the offspring from crosses between:
timofeeve [1]

Answer:

a) 100% roan

b) 50% red, 50% roan

c) 50% roan, 25% red, 25% white

Explanation:

a) A red bull has the phenotype RR, a white cow has the phenotype rr. Let's do a punnett square. In its gametes, the bull only has R alleles to pass on, and the cow only has r alleles to pass on:

                               Bull

                        R               R

                r      <em>Rr             Rr</em>

Cow    

               r      <em> </em><em>Rr             Rr</em>

The offspring can only be Rr, so all of them will be roan. (100% roan).

b) A red bull has the phenotype RR, a roan cow has the phenotype Rr. Let's do a punnett square. In its gametes, the bull only has R alleles to pass on, and the cow has an R allele and an r allele to pass on:

                               Bull

                        R               R

               R      <em>RR            RR</em>

Cow    

               r      <em> </em><em>Rr             Rr</em>

<em />

50% of the offspring will be RR, and 50% will be Rr. So half of the offspring will be red, and half will be roan.

c) A roan bull has the phenotype Rr, a roan cow has the phenotype Rr. Let's do a punnett square. In its gametes, the bull has an R allele and an r allele to pass on, and the cow also has an R allele and an r allele to pass on:

                               Bull

                        R               r

               R      <em>RR            Rr</em>

Cow    

               r      <em> </em><em>Rr             rr</em>

<em />

25% of the offspring will be RR, 50% will be Rr, and 25% will be rr. So half of the offspring will be roan, a quarter will be red, (RR), and a quarter will be white (rr)

6 0
3 years ago
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