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Rudik [331]
4 years ago
10

DV

Biology
1 answer:
Georgia [21]4 years ago
4 0

That question, this incomplete. The full question is:

3. Three redwood trees are kept at different humidity levels inside a greenhouse for 12 weeks. One tree is left outside in normal conditions. The heights of the trees are measured once a week. What are the dependent variables, independent and the controlled variable of this experiment?

Answer:

  • Independent variable: different humidity levels
  • Dependent variable: the heights of the trees
  • controlled variable: the types of trees

Explanation:

An independent variable is one that exerts an influence within the experiment and can be measured, acting on other elements to promote the observation of a result. As the experiment seeks to observe the influence of humidity on the height of the tree, we can say that humidity is the independent variable.

Dependent variable is that which is influenced by the independent variable to generate a result that can be observed, can also be measured. As the experiment wishes to analyze how the height of the trees was affected by the level of humidity, we can say that the height of the trees is the dependent variable.

Controlled variable is that which is present in the experiment in a constant and equal way, cannot be measured. This variable is the type of trees.

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A place can support a population of 40 wolves. There are 55 wolves living in the area. What will happen to the wolf population?
Snowcat [4.5K]

Answer:

Well,if this place can only support a maximum amount of 40 wolves and 55 wolves are living in the area, the wolves population will decrease.

Explanation:

3 0
3 years ago
Suppose that you and a friend see brightly colored pigeons like these at a nature park. Because pigeons are usually gray and whi
Amanda [17]

Answer:

See the complete question and the answer below

Explanation:

<em>Suppose that you and a friend see brightly colored pigeons like these at a nature park. Because pigeons are usually gray and white, you both wonder where these colors came from. Suddenly, your friend says, "I have a theory. These birds must get their colors from eating food that has the same colors."Is your friend's explanation a scientific theory? Give reasons to explain your answer</em>

<em>The answer is </em><em>no</em><em>. My friend's explanation is not a scientific theory.</em>

A scientific theory is a tested and proven phenomenon. In order for a statement to become a theory, it must have been tested through experimentation by several independent researchers and found to be true. A mere statement based on perception with little or no experimental test is just a hypothesis and not a theory.

Instead of my friend to have said, "I have a theory", he should have said, "I have a hypothesis".

6 0
3 years ago
An amoeba is a unicellular organism, which doesn’t have a stomach for digestion of food. How does food storage and digestion tak
ahrayia [7]
It seems that you have missed the given options for this question, but anyway here is the answer. Since an amoeba is a unicellular organism that doesn't have a stomach, its f<span>ood storage and digestion take place inside a food vacuole in the cytoplasm of amoeba. Once digested, it reaches each cell organelle. Hope this answer helps.</span>
6 0
3 years ago
What is the result of cell that undergo division by mitosis
rosijanka [135]

Answer:

mitosis results in two identical daughter cells ..hope this helped!

Explanation: a eukaryotic cell undergoes a carefully coordinated nuclear division that results in the formation of two genetically identical daughter cells.

3 0
3 years ago
The 67 year old client is being treated for an acute attack of gout. which finding would the nurse expect to observe whe assessi
sammy [17]
Gout is brought about deposition of solidified or crystallized uric acid sediments most commonly in the lower extremities brought about by increased levels of uric acid. An elderly patient (67 years old) previously diagnosed with gouty arthritis came in with a chief complaint of severe pain on the foot.

Gouty arthritis has 4 stages:
(1) Asymptomatic hyperuricemia
(2) Acute gout attack
(3) Intercritical gout
(4) Chronic tophaceous gout

Lower extremity examination of gout patients in in stages 2-3 will reveal edema, redness, and extreme of the involved foot. In stage 4 gout, along with edema, redness, and tenderness; there will be the presence of white to yellow deposits called tophus (plural; tophi) usually in the medial side of the big toe.
6 0
3 years ago
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