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
alexandr402 [8]
4 years ago
6

This bacterium derives nutrition by digesting human intestinal contents (in other words, food). Humans lacking this bacterium ha

ve no measurable reproductive advantage or disadvantage relative to humans who harbor this bacterium. Consequently, the bacterium can be properly described as which of the following? 1. symbiont 2. endotoxin 3. mutualist 4. commensal a. 1 and 2 b. 4 only c. 2 and 3 d. 2 and 4 e. 1 and 4
Biology
1 answer:
strojnjashka [21]4 years ago
5 0

Answer: Option B) 4 only.

The bacterium can be properly described as a commensal only

Explanation:

A biological association where one of the two organisms benefits while the other neither benefits nor get harmed describes Commensalism.

For instance, this bacterium derives nutrition from man, and man is neither benefited or harmed.

Thus, the bacterium is a commensal

You might be interested in
Which states of matter is water in during the water cycle?
Andre45 [30]

Answer:

Explanation:

The water cycle is the path that all water follows as it moves around our planet.

3 0
3 years ago
If a system requires 150 J of input work and produces 123 J of output work, what's its efficiency?
tamaranim1 [39]
The efficiency of work is a dimensionless value, and is equivalent to the ratio of the actual work output to the theoretical work requirement. This can be calculated using the equation:

Efficiency = (actual work) / (work requirement) = 123/150 = 0.82

The higher the efficiency, the better performance is given by the system. In reality, efficiency is always lower than 1 which is the ideal value.

8 0
3 years ago
How would blocking the structures of the conducting zone of the respiratory tract impair ventilation? How would blocking the str
Rina8888 [55]

Answer:

Ventilation may increase to compensate for the reduction in gas exchange.

Explanation:

The conducting zone is part of the respiratory system. It includes the organs and structures not directly involved in gas exchange.

It serves as a route for incoming and outgoing air and filtering debris and pathogens from the incoming air.

Blocking the structures of the conducting zone would prevent delivery of air to and from the lungs impairing gas exchange.

In order to compensate for the reduction in gas exchange in the respiratory system, ventilation will increase

8 0
4 years ago
After staring at a blue light for a few minutes, yoko shifts her gaze to a white wall and experiences an afterimage in the color
maksim [4K]
<span>After staring at a blue light for a few minutes, Yoko shifts her gaze to a white wall and experiences an afterimage in the color yellow. Yoko's experience provides support for the opponent-process theory of color vision.
The opponent-process theory is proposed by 
</span>color vision. This model was first proposed in 1878 by Ewald Hering and <span>states that when one emotion (in this case : color)  is experienced, the other is suppressed. In Yoko's case she experiences (looked) the blue color long enough to supres the white color,</span>
8 0
4 years ago
If you have read please help and explain.
Pachacha [2.7K]
D, i believe it says it requires a bigger beak for crushing up seeds.
3 0
3 years ago
Read 2 more answers
Other questions:
  • What is meant by a mechanism of evolution?
    8·1 answer
  • Some regions of the world are capped with volcanic flows which are thousands of feet thick. True False
    11·1 answer
  • The human stomach secretes an enzyme known as pepsin. This enzyme breaks down proteins into smaller chemical molecules called pe
    15·2 answers
  • Where are chlorophyll molecules located within the chloroplasts?
    11·1 answer
  • At the doctor’s office, the doctor drains the abscess and takes a sample for culturing. She also prescribes some broad-spectrum
    15·1 answer
  • What determines an organism's characteristics?
    12·1 answer
  • What describes a promoter
    12·2 answers
  • Find out about the destruction of therain forests in South and Central America. At what rate isthis precious habitat being destr
    5·1 answer
  • Heredity Lab Report
    6·1 answer
  • which genetic codon of hemoglobin beta gene is mutated and what that mutation is? as in case of mutation in 7th genetic codon of
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!