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3241004551 [841]
2 years ago
11

For each scenario in the attached handout write down whether the scenario is positive or negative feedback.

Biology
1 answer:
slega [8]2 years ago
8 0

Answer:

1. Negative

2. Negative

3. Positive

4. Positive

5. Negative

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Was the scientist who developed the inactivated polio vaccine.
Naddika [18.5K]

Answer:

Jonas Salk

Explanation:

  • The vaccine that is used for the prevention of polio caused due to the infection caused by the poliovirus is known as polio vaccines. 
  • The first successful polio vaccine was developed by Jonas Salk in the year 1952 and the success of the field trials was announced in the year 1955. 
  • This vaccine became famous as the Salk polio vaccine which is 60-70% effective against PV1 and 90% against PV2 and PV3. 
  • This vaccine was an inactivated vaccine. 
4 0
3 years ago
Cutting down forests changes the populations of more than trees. Imagine the organisms that lived in this forest. After the tree
Alex_Xolod [135]

Answer:

<em>Food and shelter are the most likely limiting factors in this case.</em>

Explanation:

In a forest, the huge trees act as a source of shelter for the animals that live in that habitat. It protects the animals from the heat of the Sun and extreme cold conditions.

The tress in the forest are the primary source of food for almost all the organisms that live in the forest. Cutting down trees will lead to food scarcity for the animals which inhabit that forest. As a result, the animals will either have to migrate or they will become die due to lack of food.

Hence, food and shelter are the limiting factors in this case.

6 0
2 years ago
3. What happens to the energy that is consumed by any level in an energy pyramid?​
beks73 [17]

Answer:

The amount of energy at each trophic level decreases as it moves through an ecosystem. As little as 10 percent of the energy at any trophic level is transferred to the next level; the rest is lost largely through metabolic processes as heat.

Explanation:

4 0
3 years ago
Help plsss
Margarita [4]

Answer:

Fluorine is a chemical element with symbol F and atomic number 9. Classified as a halogen, Fluorine is a gas at room temperature.

symbols are abbreviations used in chemistry for chemical element

Explanation:

7 0
3 years ago
Based on this cladogram, which pair of organisms are likely to share the most similarities with each other? The image depicts a
Paha777 [63]

Based on the cladogram, the organisms that are most related are A and C since they had the most recent divergence.

<h3>What is a cladogram?</h3>

A cladogram is a diagram which is tree-like showing similarities and differences among organisms as a result of evolutionary changes that occur in the organisms.

In a cladogram, the most similar organisms have the most recent branching along the cladogram.

Based on the description of the cladogram, the most recent branching occurred between A and C.

Therefore, based on the cladogram, the organisms that are most related are A and C.

Learn more about cladogram at: brainly.com/question/1477703

3 0
2 years ago
Read 2 more answers
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