Can you guys help me?

1. One of the basic conditions for natural selection to occur is that there must be variability within a species. What variability was present in the population of utensil birds?

2. Before the terrible drought, which beak types gathered the most food items?

3. After the terrible drought, which beak type was most successful?

4. Over time, if drought conditions continue, what would you expect to happen to the number of birds with each of the 4 types of beaks in the population? Be specific as to which ones might increase, decrease, or stay the same.

5. As the individuals of the species change over time, the whole species may begin to look very ddifferent. If these birds become isolated from other populations, it may even become a completely different species. What is the name of this process called?

6. In this experiment, why did we do four trials for each type of food instead of just one?

7. Why did we focus on the class average data instead of the individual group averages?

8. Did your group get trivial or significant differences between your trials for the spoon beak? What most likely caused these differences?

Here my graphs; by the way don't worry about the forks! because my group dind't have any.

Can You Guys Help Me?1. One Of The Basic Conditions For Natural Selection To Occur Is That There Must
Can You Guys Help Me?1. One Of The Basic Conditions For Natural Selection To Occur Is That There Must

Answers

Answer 1

Based on natural selection and the data provided, it was observed that birds with the spoon beak type were most successful in obtaining food both before and after the drought.

What is natural selection?

Natural selection is the process by which organisms that are better suited for survival in an environment are selected to survive and reproduce.

Natural selection depends on variation among species.

Considering the table:

1. There was variation in the beak type of the birds.

2. Before the drought, the toothpick beak type and spoon beak type gathered the most most food.

3. After the terrible drought, the spoon beak type was most successful.

4. If the drought conditions continues;

The toothpick beak type will decreaseThe spoon beak type will stay the samethe fork beak type will decreasethe knife beak type will decrease

5. The process by which If the birds become isolated from other populations they become a completely different species is called evolution.

6. Having repeated trials helps the reduce the possibility of chance occurrence in the results obtained.

7. The class average data will give a truer picture of the effects of drought on bird feeding because of the larger number of sample.

Also, it will help to eliminate individual group errors and identify outliers.

8. There were no significant differences between your trials for the spoon beak.

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Answer:

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Explanation:

In plants, xylem cells, root hair cells, and phloem cells are unspecialized cells. The statement is true.

what are roles of xylem and phloem ?

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Answers

Answer:

1.875 grams

Explanation:

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Answer:

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Answers

Answer:

Convection currents in the mantle

Explanation:

Convection in the mantle is the same as convection in a pot of water on a stove. Convection currents within Earth's mantle form as material near the core heats up. As the core heats the bottom layer of mantle material, particles move more rapidly, decreasing its density and causing it to rise.

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Convection also plays a role in the movement of deep ocean waters and contributes to oceanic currents. Inside Earth, the convection of mantle material is thought to cause the movement of the overriding crustal plates, resulting in events such as earthquakes and volcanic eruptions.

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Estimates of the speed with which Earth's mantle moves range from 1 to 20 cm/year with an average of about 5 cm/year in the case of plate motions to as much as 50 cm/year in hotspots such as the Hawaiian Islands (see Plates, Plumes, And Paradigms (2005) edited by Gillian R.

Direction

Convection currents observed in water rise to the surface and then spread out in both direction. Convection currents in the mantle are thought to operate in the same matter as convection currents in water. ... This shows that the convections currents move outward both right and left after the current reaches the surface.

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The primary sources of thermal energy for mantle convection are three: (1) internal heating due to the decay of the radioactive isotopes of uranium, thorium, and potassium; (2) the long-term secular cooling of the earth; and (3) heat from the core.

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