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
e-lub [12.9K]
3 years ago
15

A student sets up an experiment with two groups of bacteria. One group is expoded to the normal amount of mercury found in the e

nvironment. The other group gets a larger dose. Which term describes the normally treated group?
Biology
1 answer:
Usimov [2.4K]3 years ago
4 0
The normally treated group is called the control. Scientists use control to lessen the effects of variables. The accuracy of the results becomes higher. Control groups can be positive or negative depending on the expectation of a phenomenon that would occur in it.
You might be interested in
Describe two ways in which communication in the endocrine system and in the nervous system are different and one way in which th
Mkey [24]

The two ways the endocrine system and the nervous system are different in communication, is that the nervous system responds rapidly to short-term changes in the body by sending electrical impulses. And with the endocrine system, it takes longer, so it's a long-term effect until it notices any changes and when it does, it sends chemical messengers known as hormones into the body.

Now, how they are similar, is because both the nervous and endocrine systems work together to maintain homeostasis.

6 0
3 years ago
CAN SOMEONE ANSWER QUESTIONS 22-28 PLZ!!!!!!!!!!!!!
ArbitrLikvidat [17]

Answer:

.........

.............tteedhhgggggfrfr

4 0
3 years ago
How many significant figures are in the measurement 1.050 L?
Crazy boy [7]
There are 4 significant figures

8 0
3 years ago
Which is used as evidence for the idea that multicellular organisms evolved from prokaryotes
anzhelika [568]

Living things has emerged into three domains called Archaea, bacteria, and eukaryotes. Evident that support the idea that multi cellular that is eukaryotic cell evolved from the prokaryotic cell are the descendents of the separate prokaryotic cells that together form a union which are inter dependent.

For example: The mitochondria which is referred to the energy source of the cell is considered as the great-great-great-granddaughter of a bacterium cell which is free living. This free living bacterium bacterial cell was consumed by an other cell and this remained as the stable guest in the cell. This mitochondria provided chemical energy to the cell and also protected the nutrient rich environment.  which surrounds it. This process of one organism residing in the other organism completely is called endosymbiosis.

5 0
3 years ago
Read 2 more answers
#1. Which of the following structures would you expect to find in a single-celled organism? A. internal organs B. legs and feet
qwelly [4]
1. outer covering - none of the other answers can occur due to the absorbed solutions inability to reach the centre of the organism, smaller cells in greater numbers are more efficient as they can group together yet all absorb the right amounts of nutrients for its need. multi cellular organisms, such as humans can have the other answers in them as cells group together to make skin, muscles and organs. it also gives the organism to grow larger.

2. bacteria are single celled. bacteria reproduce through mitosis (cell division). bacteria break down decaying matter to obtain energy. every organism requires energy to live. Bacteria can move in order to reach their nutrient source.


6 0
3 years ago
Other questions:
  • How does indicate that a. dog is more closely related to a red fox than a house cat?
    11·1 answer
  • As ____________ increases, the two-point threshold decreases. receptor number receptor density receptor sensitivity receptor sen
    8·1 answer
  • name process by which products of digestion, present in high concentrations in the ileum,would pass into the capillaries​
    11·1 answer
  • Generally, single-celled plants may reproduce by
    13·2 answers
  • Consider the role of fire in a forest. compare and contrast the consequences of high-frequency versus low-frequency fire, and hi
    8·1 answer
  • Whats the difference between freshwater and saltwater?
    5·2 answers
  • Find the slope of the line that passes through the points (-4, -4) and (4, 8).
    12·1 answer
  • Pleaseee helppppp!!!! <br> the most can be just like 4 sentences<br> 20 points !!!!!
    6·1 answer
  • Compare renewable and nonrenewable energy sources, and discuss the effects of each on biodiversity.
    15·1 answer
  • A site where pathogens can survive, multiply and serve as a continual source of infection is called a(n):_____.
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!