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Juliette [100K]
3 years ago
13

Hemoglobin is a protein in red blood cells that carries oxygen from the lungs to body tissues. People with hemoglobin levels les

s than 12 g/dl are anemic. A public health official in Jordan suspects that the mean for all children in Jordan is less than 12.
What are the null and alternative hypotheses for this problem?
Biology
1 answer:
Pani-rosa [81]3 years ago
6 0

Answer:The Null hypothesis state that the mean hemoglobin level for all the children in Jordan is 12g/dl.

While the Alternative Hypothesis state that the mean hemoglobin level for all the children in Jordan is less than 12g/dl

Explanation:

The Null hypothesis H0: This is the hypothesis that state that there is no statistical difference between the two variables in the hypothesis. It is the hypothesis that the researcher is work to nullify.

The Alternative hypothesis H1: This is the hypothesis that states there is a statistically difference between two variables.

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What effects do humans have on erosion
denpristay [2]

Answer:

Deforestation, which is logging or burning forests, is a way in which humans cause erosion. Removal of the vegetation covering the ground causes the soil, which is unprotected against wind and water, to erode. The loss of topsoil essentially destroys the ability for the land to regenerate.

hope this helps:)

3 0
3 years ago
What would happen if you removed a level from the levels of organization?
shtirl [24]

Answer:If we were to remove just one level of organization all the other levels would fall apart. It would then become very difficult to make any decisions without all the levels put together as one.

Explanation:

3 0
3 years ago
Make a hypothesis about which part of the light spectrum causes the most plant growth and which part of the
Natali5045456 [20]

Answer:

The suitable words will be -

  1. Red and Blue  
  2. Green

Explanation:

  • Make a hypothesis about which part of the light spectrum causes the most plant growth and which part of the light spectrum causes the least plant growth. Assume that all conditions other than the color of the light are the same for each seed as it grows: the soil, moisture, viability of the seed, etc. State your hypothesis on your lab worksheet. Example: If a plant is grown under Red and Blue color of light then the plant will grow well. However, if the plant is grown under Green color light then the plant will not grow well.
  • All the VIBGYOR color is mixed all together and forms the White color. Plants are green because chlorophyll reflects the green light and absorbs the other light spectrums. If the Blue light spectrum is absorbed then the plant will grow the most and if the Greenlight spectrum is absorbed then the plant will grow the least.
8 0
3 years ago
The _____ theory of dreaming proposes that dreaming occurs when the cerebral cortex synthesizes neural signals generated from ac
jeka94

Answer:

The correct answer is- activation synthesis theory

Explanation:

The activation-synthesis theory tells us about the role of neuron in dream production during sleep. It was first proposed in 1977 by Allan Hobson and Robert McCarley which was psychiatrists at Harvard University.

This theory says that in REM sleep some neurons in the lower brains for example in the brain stem randomly activates due to change in neural signals and dream occurs when the cerebral cortex tries to interpret the meaning of these neuron signal changes.  

So the correct answer to this question is- activation-synthesis theory.

7 0
3 years ago
What is a lysosome?
AVprozaik [17]
I believe the answer is B.
4 0
3 years ago
Read 2 more answers
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