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Elden [556K]
3 years ago
12

What does chemical change mean.

Biology
2 answers:
Marianna [84]3 years ago
7 0
Chemical change : sometimes a substance combines with another and forms a new substance , this is known as a chemical change .
zloy xaker [14]3 years ago
6 0
When a chemical is combined with another chemical to make to make a new substance called a chemical synthesis or chemical decomposition into two or more chemical substances.
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A large population of cockroaches was sprayed with an insecticide. a few of the cockroaches survived and produced a population o
Airida [17]

What can be inferred from this excerpt is : ( D )  Individuals with favorable variations survive and reproduce.

<h3>Effects of genetic variations in species</h3>

When the insecticide was sprayed some of the cockroaches survived and continued reproduction due to their resistance to the spray.Therefore it can inferred that although the cockroaches share the same genetic materials, the variations in individuals within the same specie played a role in the survival of some of the cockroaches.

Hence we can conclude Individuals with favorable variations survive and reproduce.

Learn more about genetic variations : brainly.com/question/14926046

8 0
3 years ago
What kind of stem cell can develop into any kind of of cells in the human body , but not cells of the placenta?
sineoko [7]

Células-troco pluripotentes

7 0
3 years ago
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what is an area of study in biotechnology is controversial because it deals with the manipulation of genetic material?
denis23 [38]
GMO I think. Genetically modified organisms.
5 0
3 years ago
An element has atomic number 21 and atomic mass 44.95592 identify the incorrect statement regarding how to interpret and use thi
Snezhnost [94]

Not judging, but you probably would've gotten the answer if you posted in the Chemistry subject.

Answer:

C would be the incorrect statement.

Explanation:

When doing the calculations for finding the neutrons, you would get around 24 neutrons, since the mass is about 45 amu. 21 would be the number of protons.

Hope this helps :)

6 0
2 years ago
Explain what are co-evolved mutations and how can they help with predicting protein structures?
S_A_V [24]

Answer:

The correct answer is as follows.

Explanation:

Coevolution is a phenomena where two related species evolve at the same time since they share a close relation. For instance, the relation between a predator as its prey or a virus and its hostage. This phenomena helps to predict protein structures, since by revealing the higher order structure of a protein we can predict the structure of other protein that have coevolved with it. This has been used in several studies, such as one 2015 study of Pandini and collaborators entitled "Coevolved Mutations Reveal Distinct Architectures for Two Core Proteins in the Bacterial Flagellar Motor".

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3 years ago
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