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
marusya05 [52]
4 years ago
9

Match the scientist to his contribution to the atomic theory.

Biology
1 answer:
Shalnov [3]4 years ago
3 0

Answer:

Explanation:

J. J. Thomson     Electrons are scattered within the atom.

J.J. Thomson carried out experiment on the discharge tube in 1897 which led to the discovery of electrons as a subatomic particle. During this time, the whole atom was thought to be made of only electrons.

John Dalton Atoms are the smallest unit of an element.

John Dalton in 1808 proposed that atoms are the smallest indivisible particles of an element.

Ernest Rutherford Protons are at the center of an atom.

In 1911, Ernest Rutherford performed experiments using gold foil. He discovered that an atom is made up of a massive center made up of positively charged particles called protons.

Niels Bohr Electrons are in orbital levels.

Bohr in 1913 suggested that electrons are in specific spherical orbits around the central nucleus.

You might be interested in
Why is it important that we study the web of life?
love history [14]

Answer:

An ecosystem is made up of all the living animals and plants and the non-living matter in a particular place, like a forest or lake. The idea of the web of life is shown by the interdependence within an ecosystem. ... Animals and plants depend on a complex system of food for survival.

7 0
3 years ago
Teniendo en cuenta problemáticas de la biología o de su aprendizaje ,pensar un tema investigar desde el enfoque cualita tivo y o
Naily [24]

Answer:

Caso de estudio: El efecto de estresores ambientales sobre el comportamiento animal

- Ejemplo de un tipo de estudio cualitativo: la influencia de estresores ambientales (por ej. niveles anormales de dióxido de carbono atmosférico) sobre el comportamiento en ratones de laboratorio  

- Ejemplo de un tipo de estudio cuantitativo: la influencia de estresores ambientales sobre los niveles de producción de hormonas asociadas a cambios comportamentales en ratones de laboratorio  

Explanation:

Un enfoque cualitativo se caracteriza por el hecho de que la información obtenida durante dicho estudio se agrupa en categorías mutuamente excluyentes. En biología, los estudios de tipo cualitativo generalmente se caen dentro de la dicotomía observacional (es decir, presencia o ausencia del factor en estudio). En el ejemplo arriba citado, es posible obtener datos relacionados a uno o más determinado aspectos comportamentales en los individuos bajo estudio (por ejemplo, presencia o ausencia de signos de irritabilidad) en ratones sometidos a algún estresor ambiental (por ejemplo, niveles anormales de CO2 atmosférico). Por otra parte, en un enfoque cuantitativo, la información se recopila en intervalos obtenidos a partir de operaciones aritméticas (estadística paramétrica). En el ejemplo, los datos obtenidos pueden ser clasificados en intervalos referidos a los niveles hormonales. Esta información resulta útil para determinar si las diferencias en los niveles hormonales entre individuos que se encuentran en presencia del estresor ambiental son estadísticamente significativas respecto al grupo control (individuos desarrollados en un ambiente con niveles normales de CO2 atmosférico), y de este modo concluir si el estresor ambiental puede o no modificar variables comportamentales. Los estudios cualitativos permiten el uso de variables independientes las cuales son clasificadas como cualitativas (discretas).

5 0
3 years ago
Logical reasoning quiz be Lindsay Bowden
Arturiano [62]

Answer:

ok I can help you alright

7 0
3 years ago
Why e-waste is a problem and present one possible way of mitigating the growing e-waste problem.
Ad libitum [116K]
Ewaste is a problem because it contains many hazardous chemicals like mercury, lead and cadmium which could seep in to the soil and eventually to the groundwater. This would lead to contamination of the drinking water. The most important thing to remember would be to separate this type of waste with the others. It would be better if you sell it or give it for reuse. Also, you can send it to a recycler that knows what to do with these wastes.
4 0
3 years ago
Which of these is the study of interactions among organisms and their environment including its living and nonliving parts?
MakcuM [25]

<u><em>Ecology</em></u><em> is the study of interactions among organisms and their environment including its living and nonliving parts.</em>

Answer: A. Ecology

Explanation:

Ecology is the investigation of how living beings associate with each other and with their physical condition. The conveyance and bounty of living beings on Earth is moulded by both biotic, living-life form related, and abiotic, nonliving or physical, factors.

Ecology is learned at numerous levels, including creature, populace, network, biological system, and biosphere. Water accessibility is a case of an abiotic, or nonliving, factor that can influence dispersion of creatures.

Accessibility of supplements given by different life forms is a case of a biotic, living-creature related, factor that can impact appropriation.

7 0
4 years ago
Other questions:
  • Proteins that are involved in the regulation of the cell cycle, and that show fluctuations in concentration during the cell cycl
    9·1 answer
  • A repeated or prolonged exposure that may bring it about slowly develop symptoms
    12·1 answer
  • In his attempt to develop a pneumonia vaccine, Frederick Griffith injected mice with various combinations of living and dead bac
    11·1 answer
  • Brainliest!!! Help!!
    15·1 answer
  • Which structures are found in animal cells?
    14·2 answers
  • Can someone help me please, “Example of abiotic factor interacting with another abiotic factor.” Worth 10 points!
    5·1 answer
  • Diverse mammals developed and began to flourish in the Cenozoic era . Which of the following also began to develop and flourish
    7·2 answers
  • Several students were having a discussion about the role of chromosomes in inheriting traits.
    10·1 answer
  • What happens to the number of chromosomes during fertilization?
    12·1 answer
  • When humans plant more trees, carbon can begin entering the _______________ as carbon dioxide.
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!