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dimaraw [331]
3 years ago
8

Please help me!!!!!!!!! this is my test!!!!!!!!!​

Biology
1 answer:
ioda3 years ago
6 0

Answer:

Effort = 125 N

Explanation:

Given

Load (L) = 500 N

Load distance (L.D) = 20 m

Effort distance (E. D) = 80 m

Effort (E) = ?

We have the formula that

E * E.D = L * L. D

E * 80 = 500 * 20

80E = 10000

E = 10000/80

E = 125 N

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The question is incomplete as it does not have the options which are:

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a video that shows penguin species that have different mating dances

<em><u>The reproductive isolation is the factor which allows the species to evolve and form a new species, therefore, this factor is used to describe a species.</u></em>

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<em><u>The reproductive isolation refers to a mechanism in which the species are isolated to not interbreed with the individual of other species. The reproductive isolation could be due to behavioural, psychological, physical or genetic differences. evolved as an adaptation.</u></em>

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<em><u>In the given cases, the penguin species which shows different mating dances is considered to be reproductively isolated as the different dance rituals evolved as behaviour to prevent them from mating.</u></em>

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<em><u>Thus, the selected option is correct.</u></em>

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