3 years ago

Which is true of all crops that humans grow

Biology

2 answers:

igomit [66]3 years ago

8 0

They are descended from wild plants.

Brums [2.3K]3 years ago

7 0

They descend from wild pants

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2. How has scientific understanding about the composition of the universe changed over time? Select the two correct answers.

mart [117]

Answer: The percentage of unknown material has grown in scientists estimates since the 1970’s; the percentage of dark matter has shrunk in scientists estimates since the 1980s

Explanation:

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2 years ago

A plant with yellow flowers was crossed with a plant with red flowers. all of the numerous offspring had red flowers. what does

Lynna [10]

The genotype for yellow flowers is a recessive trait.

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3 years ago

g Indium has two naturally occurring isotopes: 113In with an atomic weight of 112.904 amu, and 115In with an atomic weight of 11

aleksandrvk [35]

Answer:

Fraction-of-occurrences of 115In isotope $= 0.957$

Explanation:

As we know weight of 113 In isotope is equal to the sum of product of fraction-of-occurrences of two constituents isotopes and their atomic weight

$^{115}In_w = f_{113}*A_{113} + f_{115}*A_{115}$ ------(1)

As we know sum of fraction-of-occurrences of two constituents isotopes is equal to one.

$f_{113} + f_{115} = 1\\f_{113} = 1- f_{115}$ ---------(2)

Substituting the given values in equation 1, we get

$^{115}In_w = f_{113}*A_{113} + f_{115}*A_{115}\\114.818 = (1 - f_{115}) * 112.904 + f_{115} * 114.904\\f_{115} = 0.957$

Substituting this value in equation 2 we get -

$f_{113} = 1- f_{115}\\f_{113} = 1- 0.957 \\f_{113} = 0.043$

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4 years ago

Traits are inherited ________ of alleles.

Ira Lisetskai [31]

Through the actions of alleles

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3 years ago

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List three reasons why homeostasis in the body might be disrupted

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homeostasis is a set of self-regulation we can figure out what this means, One could be that we need homeostasis to maintain a balance, but if we receive any news it may affect homeostasis.

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