BIOLOGY HIGH SCHOOL

Toby is camping in a broad, U-shaped valley. The area was most likely created by _____.

Answers

Answer 1
Answer: The answer is glacial erosion.

U-shaped valleys, as named, have a characteristic U shape. Their evolution usually start as a river valley. Thus, they have V shape before erosion occurs. When glacier start its travel down a slope, it erodes and deepens that V-shaped valley. Over the time, valley get the U shape and becomes U-shaped valley, also called glacial troughs.

Related Questions

For which deadly feline disease do we not have a vaccine available?
The pituitary gland is located in the brain and controls __________.
Which force is responsible for waves and surface currents? a. heatb. frictionc. gravityd. pressure
What is the difference between the beliefs of the Nation of Islam different from the beliefs of the Southern Christian Leadership Conference? A. The Nation of Islam desired a sense of community with whites. B. The Nation of Islam desired more interaction with whites. C. The Nation of Islam used nonviolent means to achieve equality. D. The Nation of Islam used any means necessary to achieve equality.
A scientist has correctly gone through all the possible steps in a dichotomous key, but has not identified an insect. Which most likely describes why he did not identify the insect?

A specific tRNA can only attach to a specific type of amino acid. True or False?

Answers

The correct answer is True.

Modern hospitals often contain semi private rooms and wards where many people share a single room. In light of the spread of microorganisms, what patients would be good candidates to occupy these rooms?

Answers

There are three possible types of room in the hospital:

1. ward (3-4 patients)

2. semi-private room (2 patients)

3. private room (1 patient).

Incidence of hospital-acquired infections is growing, so it would be desirable to promote greater safety for patients in order to avoid those nosocomial infections. So, the best way to prevent the spread of infections is to put patients that are contagious into semi-private and private rooms.

Which describes an example of ecological succession?A) A caterpillar developing into a butterfly.
B) A meadow replacing a pond in its flood plain.
C) A climate gradually changing over many eons and becoming colder.
D) The replacement of a native species of animal with an invasive species.

Answers

The right answer for the question that is being asked and shown above is that: "D) The replacement of a native species of animal with an invasive species." The statement that describes an example of ecological succession is that The replacement of a native species of animal with an invasive species.

Answer:

its b

Explanation:

Which of these is always part of using the scientific method?

Answers

Since you provide no options, here are the usual parts of scientific method :

- Idea / question which answer you want to find out
- Research , collecting all kinds of data
- Hypothesis , an explanation that is made at the starting point, before the experiment
- Experiment , to find out whether your hypothesis is right
- Analyze the data that you got from the experiment
- Conclusion, your final judgement based on the result of your experiment

When researchers use a molecular clock what are they measuring?

Answers

They are measuring the time that two species have been evolving independently.

A molecular clock is a method that is used by scientists to estimate the time that two species evolve separately using the knowledge of the DNA differences. To carry out this method, scientists use (i) an estimate of the number of genetic mutations that occur between two closely related species and (ii) the average genetic mutation rate to estimate the time in prehistory when the two species split.

Early organisms in the precambrian era converted ______ to oxygen.

Answers

Answer:

Early organisms in the precambrian era converted ___Carbon dioxide__ to oxygen.

Explanation:

THE PRECAMBRIAN ERA:

The word Precambrian means before the Cambrian period. Before the formation of oldest rock with having fossils in them this term was used to the whole period of earth's history.

This era gone through number of important changes. One important change is that atmosphere of this era is deprived of Oxygen. All other content of the atmosphere is same as component of air present today but with little water vapours. Early organisms in the precambrian era converts carbon dioxide into oxygen. This oxygen was very less and begins to combine chemically with iron and other elements. This produces great mineral deposits around the world. This is the era from where aerobic respiration organisms start their life cycles.
Carbon dioxide to oxygen.
This was the start of the evolution of photosynthesis, where carbon dioxide is broken down to its constituents, and the carbon is used for the synthesis of glucose to be stored in the organism as energy storage.

Hope this helps! :)
Other Questions
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Why do some organisms reproduce asexually?