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maxonik [38]
2 years ago
6

How do you calculate degree of freedom for chi square

Biology
1 answer:
natka813 [3]2 years ago
6 0

Generally, you can calculate it with this formula: df = (r-1)(c-1) where r is the number of rows and c is the number of columns.

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A food shows many food chains within a community and how they overlap.
3241004551 [841]

Answer:

The food chain describes who eats whom in the wild. Every living thing—from one-celled algaeto giant blue whales—needs food to survive. Each food chain is a possible pathway that energy and nutrients can follow through the ecosystem.

For example, grass produces its own food from sunlight. A rabbit eats the grass. A fox eats the rabbit. When the fox dies, bacteria break down its body, returning it to the soil where it provides nutrients for plants like grass.

Of course, many different animals eat grass, and rabbits can eat other plants besides grass. Foxes, in turn, can eat many types of animals and plants. Each of these living things can be a part of multiple food chains. All of the interconnected and overlapping food chains in an ecosystem make up a food web.

4 0
2 years ago
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What were some recent events where scientific facts were changing??
kiruha [24]

The recent events where scientific facts were changing our new discoveries on the moon and the new species of early humans have been discovered.

<h3>What are scientific facts?</h3>

Scientific facts are those facts that are based on scientific theories and experiments. These facts are true, and they came from organized and systematic knowledge.

Scientific facts were always changing s new discoveries happen. Scientist discovers new things every day.

Thus, the recent events are new discoveries on the moon, flying, and land in the martian area. A new species of early humans have been discovered.

To learn more about scientific facts, refer to the link:

brainly.com/question/23206660

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1 year ago
Nick made the chart below to show the future impact of four energy production
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3 years ago
What is a reproductive strategy
Bumek [7]
A reproductive strategy presents an approach of a type of an organism to reproduction and of taking care of it's offspring.  

Generaly speaking, there are two main reproductive strategies, K and R reproductive strategies.

The organisms that apply the R strategy produce a great number of small, independent offspring and when the offspring is born or hatched it's left to
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On the other hand, the K strategy organisms produce a small number of offspring that they care of for a significant amount of time after they are born. This strategy is used mostly by mammals and birds.

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2 years ago
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Does any body know the colors to color this map please help
vovangra [49]

Answer:

green idkk

Explanation:

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3 years ago
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