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
Artyom0805 [142]
3 years ago
12

Scientists have changed the model of the atom as they have gathered new evidence. One of the atomic models is shown below. A pur

ple center outlined in black with two concentric black circles around the center, the inner circle having 2 small green balls on it and the outer circle having 8 small green balls on it. What experimental evidence led scientists to change from the previous model to this one?
Biology
1 answer:
Ksju [112]3 years ago
7 0

Answer:

A few of the positive particles aimed at a gold foil seemed to bounce back.

Explanation:

Some of the positive particles aimed at a gold foil seemed to bounce back which gives information to the scientists that some heavy particles present in the center of the atom which bounce back the positive particles. so from this evidence the scientists says that atom is divisible and having subatomic particles such as proton, electron and neutron. Proton and neutron is present in the center whereas electron is revolving around the nucleus of an atom.

You might be interested in
Natural selection involves energetic trade-offs between ________. Group of answer choices high survival rates of offspring and t
koban [17]

Answer:

The correct answer is ''high survival rates of offspring and the cost of parental care''

Explanation:

Natural selection is the differential reproduction of some genetic variants with respect to others. Natural selection favors individuals who maximize their total reproductive success throughout life, that is, it favors certain phenotypes or variants are associated with greater offspring and / or greater survival, that also means that selection will favor those who stop spending on a particular breed at the right time to invest in another, that is, the amount of energy invested in each of them. This same natural selection also favors those genes that make it effective when the body that carries them is in development to extract all possible parental investment from their parents.

7 0
3 years ago
Which of the following is a benefit of increased flexibility? Better distribution of body composition. Improved cardiovascular e
Aleks [24]
The answer is more freedom of movement.
3 0
3 years ago
DDT is a synthetic compound commonly used as an insecticide. It was used to control mosquito species that commonly spread diseas
fenix001 [56]

Answer:

The phenomenon that explains the trend seen in the data is that the mosquitoes' evolution has led them to develop resistance to the compound.

Explanation:

This is a very common factor that we can see in insects. The effect of DDT on the species will have different levels of impact. One is going to be more vulnerable to the compound that the rest. However, after many times of exposition to the compound, a few survivors will develop resistance to the compound and their offspring is going to inherit that resistance. Making them increase the resistance over time.

3 0
3 years ago
Which of the following is a property of water that allows for it to be easily attaracted to solid materials such as glass
Tresset [83]
Adhesion allows for it to be easily attracted to glass
7 0
2 years ago
What are the three letter “words” of tRNA
Vlad [161]

Answer:

Ribonucleic Acid or Ribo Nucleic Acid

Explanation:

4 0
3 years ago
Other questions:
  • If the nucleotide sequence on one side of a DNA molecule is CCTAGCT, then the sequence on the complementary strand of DNA will b
    8·1 answer
  • Human cells have 46 chromosomes. Each consists of a pair of identical chromatids attached to together by a structure called cent
    13·1 answer
  • Think back to everything you learned about proteins in unit 2. In your laboratory journal, write down what you know about protei
    10·1 answer
  • If the green allele is designated as G, and the aurea allele is designated as GA , assign genotypes to the phenotypes listed. Dr
    11·1 answer
  • An individual with the genotype AaBb produces four different gametes in equal proportions. This is a demonstration of:_____.a. t
    8·1 answer
  • In the 1950s, Christian Anfinsen demonstrated the renaturation of the protein ribonuclease (RNase) in vitro. After reduction (to
    13·1 answer
  • What is mucus and how is it helpful?
    10·2 answers
  • All air pollution is related to human activity.<br><br> A. True <br><br> B. False
    12·2 answers
  • What types of evidence allow scientists to infer that single-celled life likely existed 3.8 billion years ago? Select all that a
    8·1 answer
  • I need help on this assignment pls (Please complete whole thing not just list a single link)
    9·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!