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
Kaylis [27]
3 years ago
7

Which of these changes produces a chemical change?

Biology
1 answer:
Olin [163]3 years ago
5 0

Answer:

b

dissolving is a chemical change

You might be interested in
Which part of your brain is essential for receiving information that you are moving your legs?
stealth61 [152]

Motor coretex is essential for receiving information that you are moving your legs.

<h3>What is motor cortex?</h3>
  • The motor cortex's main job is to provide signals that control how the body moves. It is anterior to the central sulcus and a portion of the frontal lobe.
  • The primary motor cortex, premotor cortex, and supplementary motor area make up this region.
  • The motor cortex generates signals that are particular to movements and sends them to the muscles via spinal cord circuits and motoneurons to regulate motor behavior.
  • For the execution of movements to be precise, coordinated muscle activation patterns are required.

Learn more about the structure of brain with the help of the given link:

brainly.com/question/17141128

#SPJ4

8 0
1 year ago
The elements in the boron family of the periodic table are known as:
Norma-Jean [14]
Alkaline earth metals
Group 13 aka the boron family is categorized as alkaline earth metals
4 0
2 years ago
PLEASE HELP
xxMikexx [17]

Answer: DNA provides a set of chemical instructions to specific genes that the gene uses to make proteins in order to determine traits.

Explanation: Genes provide instructions that are used to determine the sequence of amino acids needed to make up a protein.

7 0
3 years ago
1.) Librarians organize books according to a classification system. Describe another type of classification system you have seen
marysya [2.9K]

Answer and explanation:

<h3>1. Librarians organize books according to a classification system. Describe another type of classification system you have seen or used.</h3>

<u>Similar to the way librarians organize their books, taxonomists and biologists can classify living organisms</u>.

In terms of biology, the taxonomic categories of species is a system used to group different species according to their physical and functional characteristics and their phylogenetic relationship.

Taxonomy can classify living organisms into domains - according to their cellular characteristics, as well as placing them in Kingdom, Phylum, Class, Order, Family, Genus and Species.

For example, man (Homo sapiens) is classified, according to his taxonomy in:

  • <em>Domain: Eukarya. </em>
  • <em>Phylum: Chordata. </em>
  • <em>Class: Mammal. </em>
  • <em>Order: Primates. </em>
  • <em>Family: Hominids </em>
  • <em>Gender: Homo </em>
  • <em>Species: Homo sapiens. </em>

The taxonomic classification system is a way of establishing differences and similarities among living beings, as well as offering an approximation to their morphology and specific functions within nature.

<h3>2. Describe three examples of how are plants and animals different</h3>

Plants belong to the Plantae kingdom, while animals belong to the Animalia kingdom, and there are clear differences between them:

  1. <em>Plants have no movement, while animals do. </em>
  2. <em>Plant organisms are capable of processing their own nutrients (autotrophs), through sunlight, carbon dioxide, oxygen, water and inorganic nutrients from the soil. Animals (heterotrophic) require to obtain their nutrients by consuming plants or other animals. </em>
  3. <em>In plants, plant cells have cloproplasts and chlorophyll, which are necessary for photosynthesis and to obtain energy substrate. The animal cell has mitochondria, which are in charge of cellular respiration, a process that provides them with energy. </em>
<h3>3. Describe three examples of how are plants and animals are similar</h3>

The similarities between plants and animals are based on the general characteristics of some living organisms:

  1. <em>They are eukaryotic multicellular organisms, formed by biomolecules such as carbohydrates, lipids and proteins. </em>
  2. <em>They have the capacity to reproduce and respond to stimuli. </em>
  3. <em>The metabolic pathways to carry out their organic processes - such as obtaining energy - are similar.</em>
<h3>4. What are some differences between plants and fungi? What specific characteristics that you observed from this activity might help you classify this organism?</h3>

Some differences between plants and mushrooms are:

  1. <em>Plants are photosynthetic organisms, capable of processing their own nutrients. Fungi require feeding on organic matter (heterotrophic). </em>
  2. <em>The nutrition of plants is by absorption of inorganic nutrients from the soil, while fungi perform an external digestion process and then make the absorption. </em>
  3. <em>From the cellular point of view, the wall of the plant cells is predominantly cellulose, while in the fungi the main component of the cell wall is chitin. </em>

An observable characteristic that allows us to establish the difference between plants and fungi is that plants are generally green, due to the presence of chlorophyll, necessary to carry out photosynthesis, while fungi are of variable colors, such as white, yellow, reddish or brown (they lack chlorophyll).

4 0
3 years ago
Desity can often be used to help determin the identity for a substance ​
sp2606 [1]
Density can be useful in identifying substances. It is also a convenient property because it provides a link (or conversion factor) between the mass and the volume of a substance. Mass and volume are extensive (or extrinsic) properties of matter - they depend on amount.
7 0
3 years ago
Other questions:
  • Alan observed that a lot of soil from his garden swept off from after heavy rain. Which is this process called? A.groundwater re
    9·2 answers
  • When molecules have an uneven distribution of charges they are said to be
    15·1 answer
  • How can cyanobacteria in contrast to saprotrophic bacteria, live in an enviroment that lacks organic material?
    10·1 answer
  • A science student makes the following statement:
    8·2 answers
  • Which gas in Earth’s atmosphere has increased over time due to burning fossil fuels?
    13·2 answers
  • How has the manufacture of medicines been improved biotechnology
    14·1 answer
  • The chemical mechanisms used to avoid errors in protein synthesis are different from those used during DNA replication. DNA poly
    13·1 answer
  • Imagine you are a plant breeder. Friends sent you two different varieties of a snapdragon flower; each have golden leaves rather
    9·1 answer
  • 2. Differentiate between a hypothesis, a<br> theory, and a law
    12·1 answer
  • Which statement best explains how enzymes speed up chemical reactions?
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!