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
gregori [183]
4 years ago
12

Which statement best describes a physical change

Biology
1 answer:
saw5 [17]4 years ago
4 0

A change in which no new substance is formed is called a physical change.

Examples: Crushing a can, Melting an ice cube, Boiling water, Breaking glass, Dissolving sugar in water, Shredding paper, and Chopping wood.

All of these examples may involve a change in shape, form, or appearance, but it DOES NOT involve a change in the molecule structure.

You might be interested in
After watching the video, how would you define the term ecological relationship? Are they always beneficial to organisms involve
dangina [55]

Answer:

There is no video but ecological relationship will be defined on a general note and it is not always beneficial to organisms.

Explanation:

In an ecosystem, organisms of the same or different species tend to interact with one another. This interaction is referred to as ECOLOGICAL RELATIONSHIP between the involved organisms. An ecological relationship can be of different types depending on the effect.

SYMBIOSIS is an ecological relationship between two organisms that interact together. SYMBIOSIS can either be mutualistic (both organisms benefit), parasitic (one organism loses and one gains), or commensalistic (one organism benefits and one neither benefits or loses). Another ecological relationship is PREDATION, where one organism called the PREDATOR feeds on part or all of another organism called PREY in order to obtain energy.

As stated above, some of the organisms involved in an ecological relationship benefits while others lose. Hence, it is not always a beneficial relationship to organisms.

7 0
4 years ago
The most plausible hypothesis to explain why species richness is higher in tropical than in temperate regions is that
qwelly [4]
The most plausible hypothesis is: Tropical regions generally have more available water and higher levels of solar radiation. They also have very high rates of immigration and very low rates of extinction.

explanation:
Water is essential for an abundance of life, and sunlight is the means by which the whole food chain receives energy. Plants convert the sunlight into food, herbivores eat them, and other animals eat herbivores.

Hope this helps, and muchas luck on your biology.
7 0
4 years ago
Which statement describes potassium-argon dating?
Fiesta28 [93]

Answer: Potassium-40 decays into argon gas over time.

Explanation: Potassium-argon dating is a dating method used to determine the age of sedimentary rocks by comparing the proportion of K-40 to Ar-40 in a sample of rock, and knowing the decay rate of K-40.

Potassium-40 undergoes decay following first order kinetics as given below:

_{19}^{40}\textrm{K}\rightarrow _{18}^{40}\textrm{Ar}+_{0}^1e

3 0
3 years ago
Read 2 more answers
Improved functional health can be a positive influence on which health risk/
Valentin [98]
<span>An improved functional health can have a positive influence on physical inactivity for this is a modifiable risk factor.  The prevalence of improve functional health is higher than physical inactivity compare to other risk factors because this will encourage an individual to have a physical activity such as biking, swimming or any routine physical fitness. </span>
4 0
3 years ago
When a flowers pollen meets its seed it's called a what???<br><br> I need a word
Snezhnost [94]
Germination I think that it’s
5 0
3 years ago
Other questions:
  • Which component of the biosphere is an example of organic mater
    10·2 answers
  • A pure substance has a/an _______ composition.
    12·2 answers
  • Can any one organism in the food web be a consumer, an omnivore a predator and a pr Justify your answer ?
    15·1 answer
  • Some people say it is not a good idea to eat a large meal after exercising or before you go to bed. Explain why this could be th
    14·1 answer
  • 5.) Suppose that Friedrich Wohler had not synthesized urea and that no other chemist was ever able to synthesize organic compoun
    10·1 answer
  • What is the term for when a player stops the soccer ball with their foot?
    10·2 answers
  • 1. In an ecosystem with four levels—producers, primary consumers, and two higher-level consumers—describe where the decomposers
    8·2 answers
  • When an animal starts breaking down body fat to compensate for a caloric deficiency in its diet, ________ are released into the
    13·1 answer
  • What if the action potential never rests or not stopping? Some real-life examples of a person and what are the consequences?
    5·1 answer
  • there is a bone on the lab bench in front of you. on it, you see that there is a smooth and slightly convex articular surface. t
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!