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Jlenok [28]
3 years ago
15

Which microorganisms causes tooth decay?​

Biology
1 answer:
nadezda [96]3 years ago
8 0

Answer:

Streptococcus mutans.

Explanation:

Streptococcus mutans is the bacteria (it is still a microorganism) that predominatly causes tooth decay. It is present in all areas of the mouth.

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The hypothesis for Tonya's experiment is "If distance of a race increases, the amount of time needed to run the race will increa
WINSTONCH [101]

The dependent variable is what changes because of the independent variable, while the independent variable is what is purposefully changed by the experimenter, since it is the variable that is being tested.

So, in this problem, you are purposefully changing the distance of the race to see whether or not the amount of time taken to complete the race will change because of the varying distances.

This means that purposefully changing the distance of the race is the independent variable that is being tested and that the amount of time that the runner takes to complete the race is the dependent variable because it changes due to the independent variable.

Sorry for being so wordy.

In short,

Independent variable- the one that's being tested and that is purposefully changed.

Dependent variable- the one that changes because of the independent variable.

Hope this helps.

7 0
3 years ago
Read 2 more answers
The scatterplots indicate the population of rabbits in the population over time. The y-axis represents the number of rabbits and
soldi70 [24.7K]

Answer:graph a?

Explanation:

edge2020

4 0
2 years ago
Chondroblasts ________. Select one: a. never lose their ability to divide b. within the cartilage divide and secrete new matrix
alexandr1967 [171]

Answer: b - Chondroblasts within the cartilage divide and secrete new matrix

Explanation: Chondroblasts are derived from two sources; mesenchymal cells within the center of chondrification and chondrogenic cells of the inner cellular layer of the perichondrium (coverings that lie over most cartilage).

At the chondrification centers, the cartilage forming cells (Chondroblasts) begin to secrete the components of extracellular matrix of cartilage. As the amount of matrix increases, the Chondroblasts become separated from each other and they are located in small cavity within the matrix called lacunae.

Concurrently, the cells differentiate into matured cartilage cells called chondrocytes.

7 0
2 years ago
Polymers are made of individual subunit called
AfilCa [17]

Polymers are made of individual subunit called monomer.

<u>Explanation:</u>

Polymers are lengthy chains built up of replicating molecular subunits, named monomers. The term polymer becomes from poly- (many) and -mer (part). A polymer may be a real or manufactured macromolecule composed of recurring units of a smaller molecule (monomers). The term monomer comes from mono- (one) and -mer (part).

Monomers make polymers by creating chemical bonds or confining supramolecular by a method called polymerization. Examples of polymers comprise plastics like polyethylene, silicones. Polymerization is the method of covalently bonding the smaller monomers into the polymer. While polymerization, chemical groups are failed from the monomers so that they may join together.

3 0
3 years ago
Read 2 more answers
Design an Experiment
Anvisha [2.4K]

Answer:

Independent Variable: Time each plant is exposed to daylight.

Dependent Variable: Hours of exposure

Constant Variables: Species of plant, location of each plant, amount of soil, amount of water, and tempurature.

Explanation:

Independent variable: the variable that stays the same.

Dependent: the measurement that is used to measure the independent variable.

Constant: the variables that stay the same in a experiment.

7 0
2 years ago
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