1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Stolb23 [73]
3 years ago
6

today's model of atom looks different from models that came before it . why has the model of the atom changed?

Biology
1 answer:
andreev551 [17]3 years ago
3 0
It was changed because scientists discovered more accurate models of the atom
You might be interested in
Sublimation is the opposite of deposition just as evaporation is the opposite of fusion transpiration freezing condensation
Lena [83]
<span>A condensation is a process where liquid changes into a gaseous form also known as water vapour. It occurs in the atmosphere when the temperature rises.
Water is produce when glucose and fructose undergo a condensation process. The water is removed by the combination of hydrogen and a hydroxyl together. Glucose and Fructose forms a substance called glycosidic linkage. And hydrogen and hydroxyl is separated from glucose and fructose. When Hydrogen and hydroxyl is combined, they create H2o or water.</span><span>
</span>
5 0
3 years ago
Read 2 more answers
What purpose would the sand serve?
mihalych1998 [28]

Sand is a granular material composed of finely divided rockand mineral particles. It is defined by size, being finer than gravel and coarser than silt. Sand can also refer to a textural class of soil or soil type; i.e., a soil containing more than 85 percent sand-sized particles by mass.[1]

The composition of sand varies, depending on the local rock sources and conditions, but the most common constituent of sand in inland continental settings and non-tropical coastalsettings is silica (silicon dioxide, or SiO2), usually in the form of quartz. The second most common type of sand is calcium carbonate, for example, aragonite, which has mostly been created, over the past half billion years, by various forms of life, like coral and shellfish. For example, it is the primary form of sand apparent in areas where reefs have dominated the ecosystem for millions of years like the Caribbean.

Sand is a non-renewable resource over human timescales, and sand suitable for making concrete is in high demand.[2] Desert sand, although plentiful, is not suitable for concrete, and 50 billion tons of beach sand and fossil sand is needed each year for construction.

make a brainliest and follow me

5 0
3 years ago
The cingulate cortex is a subcortical structure above the corpus callosum. its anterior (forward) segment participates in ____,
Hunter-Best [27]

Answer;

Decision making and emotion; memory and visual processing

Explanation;

Cingulate Cortex  is a subcortical structure above the corpus callosum. its anterior (Forward) segment participates in decision making and emotion, and its posterior (rear) segment participates in memory and visual processing.

-The forward 2/3 of this structure, the ACC: anterior cingulate cortex- participates along with the hypothalamus in the control of the autonomic nervous system (also roles in decision making, emotion, anticipation of reward, and empathy)

The rear third, PCC: Posterior cingulate cortex participates in memory and visual processing.

6 0
3 years ago
3 structural changes that must occur in young plants cell as they differentiate into xylem tissue
just olya [345]
Differentiation in plants refers to the processes by which distinct cell types arise from precursor cells and become different from each other. Plants have about a dozen basic cell types that are required for everyday functioning and survival. Additional cell types are required for sexual reproduction. While the basic diversity of plant cell types is low compared to animals, these cells are strikingly different. For example, some cells such as parenchyma cells retain the potential to respond to environmental and/or hormonal signals throughout their life and, under the right conditions, can be transformed into another cell type (transdifferentiation). Other cells such as the water-conducting vessel elements undergo cell death as part of their differentiation pathway and thus can never transdifferentiate to another cell type

Read more: http://www.biologyreference.com/Co-Dn/Differentiation-in-Plants.html#ixzz54pAhWVdn
6 0
4 years ago
Why is it important for geologists to use both relative and absolute ages to determine the age of rocks?
uysha [10]

Answer:

to help and determine the exact age of the rocks

Explanation:

The study of rocks strata is known as stratigraphy. It is useful and helps the scientist and the researcher to study the earth's crust and its past.

Scientist could age the rock using two methods. They are :

Relative ages

Absolute ages

Early scientist could determine the exact age of the rock of the earth's crust. They use to find the relative ages of the layers of the rocks and then determine how one rock layer is older or younger than the other. But with advancement and development of carbon dating, scientist could tell the exact age of the rocks found on the earth's crust.

The Scientists uses the relative as well as the absolute dating technique to date the rock layers. They organize the rock layers based on their age and scale from the oldest to the youngest on a geologic time scale. So an exact date of the rocks can be determine by using the two methods of relative age and the absolute age.

3 0
3 years ago
Other questions:
  • Hemophiliacs have blood that does not coagulate well, and they often die at a young age. The disease allele is recessive and X-l
    5·1 answer
  • Which nutrient cycle is most affected by the over-use of ammonia fertilizers on commercial farms, as well as by the accumulation
    9·2 answers
  • What is the major sink reservoirs for the nitrogen cycle?
    9·1 answer
  • The purpose of cellular respiration is to ____________ the energy from carbohydrates and other organic molecules stored during p
    5·1 answer
  • The nuclear basket protein complex is a component of the
    12·1 answer
  • Deforestation causes an increase in the atmospheric concentration of which greenhouse gas?
    9·2 answers
  • Place these foods in order of their vitamin C content, from highest to lowest.
    5·1 answer
  • Unlike mitosis, meiosis in male mammals results in the production of
    13·1 answer
  • 1. Define carrier
    13·2 answers
  • Explain why some leaves are green and some are yellow in the photosynthesis process
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!