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Ulleksa [173]
3 years ago
12

A study was done to examine the personal goals of elementary school children. a random sample of 500 students was selected from

schools in the state of georgia. the students received a questionnaire regarding personal goals. they were asked what they would most like to do at school: get good grades, be popular, or be good at sports. the results are presented in the table, classified by the gender of the child. we wish to test the null hypothesis that gender and personal goal are independent. under the null hypothesis, the expected number of boys that would select "be good at sports" is
Biology
1 answer:
aleksley [76]3 years ago
3 0
Since we wish to test the null hypothesis that gender and personal goal are independent. Under the said null hypothesis, the expected number of boys that would select "be good at sports" would be the same more or less with the girls that would select "be good at sports". The difference in their means would be set to zero for this null hypothesis.
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Name the earth system that contains the lithosphere.
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Geosphere

Explanation:

the geosphere contains the rocks that make up the earth, and the lithosphere contains rocks :)

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What is the data collected during an experiment
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The dependent variable is the data we collect during the experiment. This data is collected as a result of changing the independent variable.

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If ammonia is used as an energy and electron source by a bacterium, that bacterium would be considered a ___.
zhuklara [117]

If a bacterium uses ammonia as an energy as well as electron source, it is classified as lithotrophic chemotrophic.

<h3>Descriptive terms for lithotrophic chemotrophic:</h3>

Humans, fungi, and also many prokaryotes are chemotrophs that get their energy from organic chemicals. Lithotrophs are chemotrophs that obtain energy from inorganic substances such as hydrogen sulfide (H2S) as well as reduced iron. Lithography is a microbiological phenomenon that is unique in the globe.

<h3>What is the difference between chemoautotrophs and chemolithotrophs?</h3>

Chemotrophs are creatures that get energy from their surroundings by oxidizing electron sources. These compounds might well be organic (chemoorganotrophs) or inorganic (chemoorganotrophs) (chemolithotrophs). The term chemotroph is used in contrast to phototroph, which uses solar energy.

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3 0
9 months ago
The process of Beta-oxidation and fatty acid synthesis are regulated in such a manner that neither process is active at the same
Neporo4naja [7]

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c) Acetyl COA carboxylase; citrate

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Citrate serves as an allosteric activator for fatty acid synthesis and diverts the cellular metabolism from the consumption of metabolic fuel to the storage of fuel as fatty acids. When the concentrations of mitochondrial acetyl-CoA and ATP increase, citrate is transported out of mitochondria into the cytosol. In the cytosol, citrate serves as the precursor of cytosolic acetyl-CoA and an allosteric activator of acetyl-CoA carboxylase.

The enzyme Acetyl-CoA carboxylase has three functional regions. Its biotin carboxylase activates CO2 and its transcarboxylase transfers activated CO2 from biotin to acetyl-CoA to produce malonyl-CoA.

8 0
3 years ago
Which statement must be true about the organism?
Artyom0805 [142]

Answer:

If we're talking about human organism then

It is multicelular.

It has a backbone.

It contains cells without nuclei.

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human as almost all animals in the world is multicellular meaning they have more than one cell (some bacterias has only one)

backbone or "vertebra" is the is the bone of our back who supports us making us stand up.

Yes our cells contain nuclei , The nucleus contains nucleoplasm, a component where it is immersed in genetic material and as structures that are important for the performance of its functions

And finally our body don't have radial symmetry, radial symmetry is when you can "cut" the image in more than one piece keeping the symmetry in every side, some animals with radial symmetry are the starfish and the jellyfish.

5 0
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