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timama [110]
3 years ago
7

Based on the desert food chain provided, which change in the ecosystem would have the greatest negative effect?

Biology
1 answer:
sesenic [268]3 years ago
4 0

Explanation:

i guess it is a drought that kills most of the grass

due to it grass hoper may die and mouse would not have grass hoper to eat and owl would not eat mouse

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Environmental science includes the study of all of the following except:
7nadin3 [17]

Answer:

d

Explanation:

6 0
3 years ago
Which two organelles are found in plant cells but not animal cells
Inessa [10]
A large central vacuole, and chloroplasts. 
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4) Name the type of symbiotic relationship in which the host is harmed. Give two examples.
Marina86 [1]
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Mutualism

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7 0
2 years ago
A phenotypic ratio for a dihybrid cross is predicted to be 9:3:3:1. The experimental values are:
Maslowich
Two traits that we are examining are the color (purple/white) and the smoothness. 
In our sample, we have 135 individuals ( 75 +28+24+8= 135).

Since we know that expected ratio of a dihybrid cross, is <span>9:3:3:1 we can calculate what is the expected values of each phenotype is.

So, for the white wrinkled phenotype, we expect that there will be one-sixteenth of the whole sample ( there are 16 parts of the whole sample 9+3+3+1=16).
So, we multiply the whole sample- 135 with one-sixteenth (or </span>0.0625) and get 8,4375.
When you calculate the values for all phenotypes you get results shown in the attached excel table.
When you have your expected and experimental values you compare them with a chi-square test. (The test determines if the difference between the expected and experimental results is statistically significant).


4 0
3 years ago
Read 2 more answers
On a molecular level why does lifting weights consume energy
Veronika [31]

Answer:

to contract a muscle, myosin and actin filaments shorten, requiring ATP binding and hydrolysis

Explanation:

hopes it help

3 0
3 years ago
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