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GalinKa [24]
3 years ago
14

Which human activity creates the least threat to global stability

Biology
1 answer:
8_murik_8 [283]3 years ago
5 0
The human activity that creates the least threat to global stability is : Reuse of Plastic bags.
Plastic bag need a lot of time to be degraded in the soil which will create a threat to the environment. Reusing plastic bag will reduce this threat.

hope this helps
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Match each step of the scientific method with its description
sergij07 [2.7K]
Step 1: State the problem
description: define the problem as clearly as possible.
Example: The front brakes are making a loud noise.

Step 2: Gather information
description: Gather data about the problem and make good observations using all 5 senses.
Example: He checked all his other songs and found they all did the same thing.

Step 3: Form a hypothesis
description: a prediction that can be tested.
Example: Luke decided he would try a different set of headphones and see if that helped.

Step 4: Test the hypothesis
description: Use an experiment to test your logical answer to the problem.
- Use controlled conditions to test your hypothesis
A. Controlled experiment: Everything in an experiment that is the same except for the variable.
~ Variable: Something in an experiment that you change, only one per experiment.
~ Constant: Factors in an experiment that stay the same.
Example: Luke asked to borrow 3 diffetent friends' headphones. All the headphones were the same brand. After switching the ears, he found all the headphones worked. However, Luke tried the headphones in his friend's ipod and found they didn't work.

Step 5: Analyze Data
description: go over all the data you have and go over conclusions.
Example: Luke wrote down all his findings and read over all his notes.

Step 6: Draw a conclusion
description: Based on data and observations, conclude the answer to your hypothesis.
- should be logical answers to the question based on data and observations.
- if needed, retest this theory ( possibly with a new hypothesis)
Example: Luke concluded with his data and and observations that his headphones were broken and he needed a new pair.

Step 7: Share results
description: report journal to classmates, or publish a journal of findings.
Example: Luke shared his findings with his mom and friends, and his mom bought him another pair for his birthday.




I hope this helps!
6 0
3 years ago
How is a recessive allele different from a dominant allele?
professor190 [17]

Answer: 1) Recessive allele is unable to express its effect in the presence of dominant allele WHILE a dominant allele is able to express itself even in the presence of its recessive allele.

2) Recessive allele produces its phenotypic effect only in the presence of a similar allele. E.g; tt is dwarf. WHILE a dominant allele does not require another similar allele to produce its effect on the phenotype. E.g; Tt is tall.

3) Recessive allele forms a defective polypeptide or enzyme so that the expression consists of absence of the effect of dominant allele. E.g; white flower colour in Pea. WHILE a dominant allele can form a complete polypeptide or enzyme for expressing its effects. E.g; red colour of flower in Pea.

Explanation:

4 0
3 years ago
How does multicellular organisms grow?
sergij07 [2.7K]

Answer: They grow by increasing the number of cells they have. This relies on the processes of cell division and differentiation.

5 0
3 years ago
Which theory best explains the present arrangement of continents, oceans, and landforms on Earth?
Pepsi [2]

The correct answer is:

Plate tectonic theory

I am an online student, this was a question on my quiz and I got it right.

You're welcome.

Also, to the member above me who also gave the correct answer, Good job!

4 0
3 years ago
Read 2 more answers
The respiratory structure that contracts and relaxes to allow air to flow in and out of the lungs is the: Group of answer choice
ohaa [14]

The respiratory structure that contracts and relaxes to allow air to flow in and out of the lungs is option(c) i.e, the diaphragm.

<h3>What is the diaphragm?</h3>

The diaphragm, a delicate skeletal muscle that separates the chest from the belly, is located at the base of the chest. When you breathe in, it flattens and shrinks. As a result, the lungs experience a vacuum effect that draws air in. The diaphragm relaxes and the air is forced out of the lungs when you exhale.

signs of diaphragm issues:

  • Acid reflux, heartburn, coughing, and difficulty swallowing.
  • alterations to skin tone (skin may turn blue).
  • rapid heartbeat, pressure in the chest, and/or breathing difficulties (especially when lying down).
  • Headaches.
  • Hiccups that persist or recur frequently.

Patients who need surgery for conditions affecting the chest, including diaphragm issues, are treated by a thoracic surgeon.

To know more about diaphragm refer to:   brainly.com/question/12822939

#SPJ4

6 0
2 years ago
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