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Leya [2.2K]
3 years ago
13

A major difference between mammalian spermatogenesis and oogenesis is _____.

Biology
1 answer:
Brut [27]3 years ago
3 0
A major difference between mammalian spermatogenesis and oogenesis is <span>the number of gametes made per month.</span>
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A forest has two groups of plants that appear to be very similar both phenotypically and genotypically. The major difference is
Gennadij [26K]
The basics would be that you'd need to find out if they could exchange genetic information. If not, they couldn't be considered part of one species. Set-up 2 artificial environments so both groups would produce pollen at the same time. Fertilise both plants with the other's pollen. Then fertilise the plants with pollen from their own group. 
Count the number of offspring each plant produces. 
If the plants which were fertilised by the opposite group produce offspring, they are of the same species. You can then take this further if they are of the same species by analysing if there is any difference between the number (and health) of offspring produced by the crossed progeny and by the pure progeny. You'd have to take into account that some of them would want to grow at different times, so a study of the progeny from their first sprout until death (whilst emulating the seasons in your ideal controlled environment). Their success could then be compared to that of the pure-bred individuals. 
Make sure to repeat this a few times, or have a number of plants to make sure your results are accurate. 
Or if you couldn't do the controlled environment thing, just keep some pollen one year and use it to fertilise the other group. 
I'd also put a hypothesis in there somewhere too. 
The independent variable would be the number of plants pollinated. The dependant variable would be the number of progeny (offspring) produced. 
5 0
3 years ago
Yellowstone National Park has 124 wolves living in it. The park covers 3472 square miles. What is the population density of wolv
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B. 0.0357 wolves/mi
Divide the wolf # by the sq.mi.
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Which type of cell stays dormant, waiting to differentiate in adults to replace damaged cells? A. Totipotent B. Multipotent C. P
love history [14]

Answer:

B. Multipotent cells

Explanation:

Multipotent stem cells are the one that develops from pluripotent stem cells during embryonic development. The multipotent stem cells are the stem cells which have specific functions. These cells develop into specific cell types to replace the older cells.

For example, keratinocytes are the multipotent cells of the skin that produce new skin cells. Spermatogonia are the multipotent cells present in testes so that they can form sperms.

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