A student was given a task to observe a bacterial specimen made from dilute yogurt and sketch the shape of bacteria seen. he drew circular shapes. what kind of bacteria could these be?

QUESTION POSTED AT 18/01/2020 - 07:08 AM

Answered by admin AT 18/01/2020 - 07:08 AM

The answer is cocci.

There are three basic types of the shape of bacteria:
- Cocci - spheres,
- Bacilli - rods,
- Spirochetes - spirals.

If a student drew a circular shape, this probably represented sphere. Therefore, the shape of seen bacteria was spherical which suggests that the bacteria must be cocci.
Post your answer

Related questions

1. Restriction enzymes are naturally occurring proteins genetically engineered proteins enzymes that cut proteins B then C A then C 2. Plasmids can be used to cut DNA can be used to insert DNA into bacteria can be used to digest proteins A and C All of the above 3. Name the technique used to increase a quantity of DNA. plastid technology genetic engineering PCR RNA Recombinant DNA technology 4. What tool does one use to separate DNA fragments? an electron microscope a cyclotron a mass spectrograph a Polyacrylamide gel a centrifuge (high speed) 5. DNA fragments hav 1. Restriction enzymes are naturally occurring proteins genetically engineered proteins enzymes that cut proteins B then C A then C 2. Plasmids can be used to cut DNA can be used to insert DNA into bacteria can be used to digest proteins A and C All of the above 3. Name the technique used to increase a quantity of DNA. plastid technology genetic engineering PCR RNA Recombinant DNA technology 4. What tool does one use to separate DNA fragments? an electron microscope a cyclotron a mass spectrograph a Polyacrylamide gel a centrifuge (high speed) 5. DNA fragments hav ...?

1. Restriction enzymes are

A then C

2. Plasmids

can be used to insert DNA into bacteria


3. Name the technique used to increase a quantity of DNA.

PCR


4. What tool does one use to separate DNA fragments?

a Polyacrylamide gel

Hope this answers the question. Have a nice day.

ANSWERED AT 16/02/2020 - 06:46 PM


QUESTION POSTED AT 16/02/2020 - 06:46 PM

Some biology students wanted to determine whether a pair of brown mice purchased at a pet store was homozygous dominant or heterozygous for fur color. They let the mice mate and examined the offspring. Six mice were born. All six had brown fur. Some of the students felt that this was enough evidence to prove that the mice were homozygous for brown fur color. Other students did not, so another experiment was planned. Describe the next experiment the students could conduct to determine whether the parent mice are homozygous brown or heterozygous. Explain your answer. ...?

Mark me brainiest answer is b

How does natural selection change the frequency of genes or traits over many generations? Biology students conducted an experiment mimicking genetic variation and coloration. Students used different colored beans to represent animals that might be prey: mice, for example. A student in each group was the predator: a hawk. Beans (mice) were randomly scattered on multicolored floor tiles, each color within four tiles. The hawk collected mice (beans) for 10 seconds. Mice not eaten reproduced. Three generations of data a shown in the table.

 Speckled and striped beans (mice) had the best survival rates. Why?

A) They reproduced very rapidly.  

B) Coloration was a form of camouflage.  

C) They mimicked other mice and were spared.  

D) The speckled and striped beans had a wider range.  

ANSWERED AT 16/02/2020 - 06:37 PM


QUESTION POSTED AT 16/02/2020 - 06:37 PM

What kind of energy do all nonmoving objects?

The kind of energy that all nonmoving objects have is potential energy. Unless a force is acted onto the object, it will continue to be still because of the position it is in.

ANSWERED AT 16/02/2020 - 05:58 PM


QUESTION POSTED AT 16/02/2020 - 05:58 PM

A group of hikers find a fallen tree in a forest. The dead tree trunk is covered by mushrooms and other fungus. Later, they find a wild apple tree with many apples lying on the forest floor beneath the tree. The apples are all rotten and decayed by bacteria. Which statement BEST summarizes how these fungus and bacteria organisms are obtaining their food energy? A) The fungus and bacteria are both parasitic organisms that obtain food from other living organisms. B) The fungus and bacteria are both obtaining their energy by manufacturing food from minerals and sunlight. C) Both fungus and bacteria require well-fertilized soil in which to obtain nutrients needed for chemosynthesis. D) The fungus and bacteria organisms are obtaining the energy they need by decomposing organic matter like dead trees and old apples. Eliminate

Answer: D. The fungus and bacteria organisms are obtaining the energy they need by decomposing organic matter like dead trees and old apples.

Fungi is the primary decomposer of biological waste in forest ecosystem. Fungi grows on the branching network of hyphae which provide it more penetration potential towards the litter. Wood decaying fungi has enzymes required for decomposition of lignin, a chemical substance found in wood. Fungi decompose organic matter by releasing enzymes which breaks down the decaying matter, after that they absorb the nutrients in the decaying material. The left residue in the organic matter includes sugars and amino acids are degraded and decomposed by the bacteria.

ANSWERED AT 16/02/2020 - 04:05 PM


QUESTION POSTED AT 16/02/2020 - 04:05 PM

Describe how bacteria do each of these life functions Locomotion, Get & use energy, Reproduction

Some bacteria have structural components called flagella or pili, which help it move around in fluid or stick to other objects, such as other cells. Bacteria either produce their own food or consume other cells for food, and they use it by converting it in their cellular organelles. Bacteria can either reproduce through asexual (budding, binary fissure) or sexual reproduction (plasmid loop transfer)

ANSWERED AT 16/02/2020 - 04:00 PM


QUESTION POSTED AT 16/02/2020 - 04:00 PM

On a cloudless night a milky band known as a milky way is visible from earth.Explain how the structure of our galaxy and the position of our solar system within our galaxy relate to this observation

Since we are at the edge of the galaxy, The side of the milky way is visible to us.  However you have to be very far from artificial light.

ANSWERED AT 16/02/2020 - 02:01 AM


QUESTION POSTED AT 16/02/2020 - 02:01 AM

A population that grows until it reaches its carrying capacity usually has the shape of what

The shape of an 'S'

Hope that helps

ANSWERED AT 16/02/2020 - 02:00 AM


QUESTION POSTED AT 16/02/2020 - 02:00 AM

How are all living thing made of cells

My answer is all living thing are living things are is to replace damage cell like getting a cut, it can replace those damage cells and healing it.

ANSWERED AT 16/02/2020 - 01:53 AM


QUESTION POSTED AT 16/02/2020 - 01:53 AM

What kind of objects make up most of the visible matter in a galaxy?

Stars.............
.........................

ANSWERED AT 16/02/2020 - 12:35 AM


QUESTION POSTED AT 16/02/2020 - 12:35 AM

What kind of energy do all cells need to survive

They need ATP to survive

ANSWERED AT 16/02/2020 - 12:15 AM


QUESTION POSTED AT 16/02/2020 - 12:15 AM

PLZZ HELP FASSSSST 1. Which of the following eyects would you expect if red blood cells were shaped like neurons? (1 point) They would not be able to move as easily through capillaries. They would more easily carry out gas exchange in the alveoli. They would not need to be transported through the body. They would become more eyective at picking up urea discarded by body cells. 2. Which of the following is not a function of the skeletal system? (1 point) supports the body works with other body systems to allow movement manufactures new blood cells sends signals to the brain 3. Which of the following body systems are involved in the first line of defense of the immune system against infection? (1 point) integumentary, digestive, respiratory nervous, circulatory, skeletal muscular, endocrine, urinary urinary, skeletal, integumentary 4. Which of the following sets of structures would be involved in ridding the body of unwanted urea? (1 point) sensory neuron, interneuron, spinal cord alveoli, atrium, cilia capillary, nephron, ureter brain, esophagus, small intestine 5. An infectious disease is a disease that (1 point) is caught because the weather turns cold. is caused by pathogens. can be spread only by bacteria. cannot be cured. 6. Which of the following statements is true regarding infectious agents? (1 point) Infectious agents are all too small to be seen without a microscope, and none can be classified as living. All infectious agents are living because they are all classified as microorganisms. Of all the infectious agents, only viruses are considered living because they actively inject their DNA or RNA into host cells. Viruses cannot be treated with antibiotics because they are not living organisms. 7. Which discovery in the 1800s led to the development of germ theory? (1 point) Vaccines could prevent a disease. Antibiotics exist that can be given to counteract an infection. Infection rates decline when health care professionals wash their hands in between seeing patients. Some diseases, such as cancer, are caused by chemical factors. 8. Follow a carbon atom in a piece of bread eaten by a boy. Which of the following describes a path that this atom could take? (1 point) mouth esophagus stomach large intestine blood body cell mouth esophagus stomach small intestine blood body cell mouth large intestine esophagus stomach blood body cell mouth esophagus small intestine stomach blood body cell 9. Which of the following sets of structures is innervated by the somatic nervous system? (1 point) esophagus, stomach, small intestine atrium, ventricle, arteries biceps, triceps, quadriceps diaphragm, bladder, large intestine 10. Which of the following cell types would you expect to increase in number azer a person becomes infected with a pathogen? (1 point) sensory neurons white blood cells epidermal cells red blood cells

I got the first 3 the answers are A,D, and C good luck with the rest

ANSWERED AT 16/02/2020 - 12:10 AM


QUESTION POSTED AT 16/02/2020 - 12:10 AM

Which type of microscopy is useful for viewing colorless specimens

Contrast microscopy, I believe.

ANSWERED AT 16/02/2020 - 12:07 AM


QUESTION POSTED AT 16/02/2020 - 12:07 AM

A doctor is exploring some tissues with a blunt probe. she notices that the tissue is white and fatty and seems to be concentrated within the spinal cord. she is observing A. gray matter B. Myelin Sheaths

Answer:

The correct answer is option B, that is, myelin sheaths.

Explanation:

Myelin refers to an insulating layer, or a sheath, which get produced surrounding the nerves, comprising those in the spinal cord and the brain. It is formed of fatty substances and protein. This myelin sheath permits electrical impulses to conduct briskly and effectively between the nerve cells.  

The neuron’s myelin sheath comprises the cells containing fat, which shield the axon from electrical activity. The insulation functions to enhance the rate of conduction of signals. The myelin sheath provides the whitish look to the brain's white matter.  

ANSWERED AT 15/02/2020 - 11:56 PM


QUESTION POSTED AT 15/02/2020 - 11:56 PM

What is the main agent of erosion that has shaped much of earth's surface?

The major agent responsible for erosion on the Earth's surface is water. Flowing water as a result of rain, melting glaciers, moving streams and rivers erodes surfaces by displacing bits of soil and rocks, which is then moved from its original location to another.

ANSWERED AT 15/02/2020 - 11:50 PM


QUESTION POSTED AT 15/02/2020 - 11:50 PM

Which organism is not a consumer? A. bacteria B. snake C. grass D. owl

I believe the correct answer from the choices listed above is option C. It is the grass that is not a consumer. Instead, the grass is under the category of a producer. A grass makes its own food. It does not rely on energy of other organisms. Hope this answers the question.

ANSWERED AT 09/02/2020 - 08:10 PM


QUESTION POSTED AT 09/02/2020 - 08:10 PM

An attempt to explain observations of the natural world is A. a scientific theory B. a pseudoscientific theory C. a conclusion D. an analysis

Im pretty sure its a. scientific theory

ANSWERED AT 09/02/2020 - 07:48 PM


QUESTION POSTED AT 09/02/2020 - 07:48 PM

Most enzymes in living things are made up of what? A. Carbohydrates B. Nucleic Acid C. Lipids D. Proteins

The correct option is D.
Enzymes are biological catalysts that speed up the rate of biochemical reactions in living cells. Most enzymes are made up of proteins. There are different types of enzymes and each perform specific functions under specified conditions.

ANSWERED AT 09/02/2020 - 07:19 PM


QUESTION POSTED AT 09/02/2020 - 07:19 PM

Why is it relatively rare to observe a solar eclipse

Solar eclipse are 7min and 31sec. you would have to look at the moon at the right time and that could be hard. or people are just to stupid to tell the difference XD

ANSWERED AT 09/02/2020 - 07:12 PM


QUESTION POSTED AT 09/02/2020 - 07:12 PM

All elements are made of basic particles called

All elements are made of "atoms", and an atom is made up from 3 basic particles: Electrons are particles with a negative charge :)

ANSWERED AT 09/02/2020 - 08:44 AM


QUESTION POSTED AT 09/02/2020 - 08:44 AM

What kind of charge would the oxygen atom have compared to the hydrogen atoms?

Oxygen atoms have -2 charge where hydrogen generally have +1

ANSWERED AT 09/02/2020 - 08:03 AM


QUESTION POSTED AT 09/02/2020 - 08:03 AM

A difference between bacteria and archaea is

Certain types of archaebacteria can live in very harsh environments. While bacteria doesn't.

ANSWERED AT 09/02/2020 - 07:49 AM


QUESTION POSTED AT 09/02/2020 - 07:49 AM

What organs are on the left side of my body? On my left side i have a lot of pain. Is there some kind of organ there that I might have bruised. Could it be my galblatter (mispelled I know) Can someone please help. How do you know if it is your spline? My side hurts really bad I can barely move.

It's probably your kidney because my mom also had left side pain and the doctors said that its her kidney because there's was probably a muscle which had been massaged then it blood then the blood pushed her kidneys and her kidneys didn't function and she had to get a dialysis machine so you better see a doctor before it becomes more

ANSWERED AT 09/02/2020 - 06:19 AM


QUESTION POSTED AT 09/02/2020 - 06:19 AM