All categories

3 years ago

2. What does the atomic model teach you about the ability of scientists to

Biology

1 answer:

Nookie1986 [14]3 years ago

3 0

Answer:

The atomic model is our understanding of how the atom is structured. At one point in history, people believed that any substance was simply made of that substance and would retain that property no matter how small a quantity it was reduced to. Later, some argued that all matter was made of tiny particles called atoms. While this is correct, later researchers found that even the atoms were made of smaller particles called electron, protons, and neutrons. More recently, scientists have discovered quarks, tiny particles that makeup protons and neutrons.

You might be interested in

When marine animals die their shells decay into limestone when the limestone is exposed is released this process is known as

Inessa05 [86]

Answer:

fossilization

Explanation:

4 0

2 years ago

Match each of Darwin's ideas to the earlier scientist whose work helped Darwin develop the idea.

mamaluj [8]

Answer:

Lamarck:

The inheritable traits of species may change over time.

Malthus:

In every species in nature, some individuals survive while may others die.

Hutton, Lyell:

The environment of organisms may change over time.

Explanation:

Darwin's revolutionary ideas were influenced by a number of scientists and thinkers of the time:

Jean Baptiste Lamarck:

A botanist and zoologist, Lamarck, for, the first time, proposed the idea of evolutionary changes or adaptations in organisms in response to changes in the environment. He introduced the concept of inheritance of acquired characters.

Thomas Malthus:

Thomas Malthus was not a biologist, but an economist who proposed the ideas that at the rate of the current population growth, human population would eventually suffer from famine and starvation.This would lead to the deaths of the weakest of the population. This idea inspired Darwin to formulate the idea of "the survival of the fittest".

Charles Lyell and James Hutton:

Charles Lyell and James Hutton were famous geologists who greatly influenced Darwin with their theories about the beginning and evolution of the Earth. Charles Lyell proposed that the present state of the Earth was a result of small, gradual changes. James Hutton theorized that the processes that too place at the beginning of the Earth were still in progress.

Lyell and Hutton's work paved the way for the formulation of the theory of natural selection.

6 0

3 years ago

Which of the following depicts a molecule of DNA?

allochka39001 [22]

The answer for this question would be B

7 0

3 years ago

Read 2 more answers

A 50 gram glass holds 400 grams of liquid water and 75 grams of ice. After 20 minutes the mass of ice is 50 grams. Calculate the

xenn [34]

Answer:

450

Explanation:

subtract 25 divide by 2 add to 400

3 0

3 years ago

Allen pours water into a graduated cylinder. He notices that the surface of the water is curved, as shown below.

Slav-nsk [51]

Answer:

When water is added to a graduated cylinder, having a surface where the sides of the water look higher than the center means that the curved surface is a concave meniscus which has formed because of surface tension (Choice C).

Explanation:

A meniscus is simply the curvature that the surface of a liquid acquires when it is in a container, such as a graduated cylinder. It is concave when there is attraction between molecules -water and glass- or it can be convex when both surfaces are repelled.

<u>Water is a polar molecule</u>, with the capacity to adhere to the surfaces it comes into contact with. This characteristic causes it to form a concave meniscus, as the outermost molecules adhere to the glass surface, while the surface tension of the water attracts the molecules from the centre downwards, causing the concavity.

Learn more:

Measuring with a graduated cylinder brainly.com/question/4070509

4 0

2 years ago

Read 2 more answers