a urine specimen has been streaked onto a blood agar and a macconkey agar. numerous bacterial colonies are growing on both plates. on the macconkey agar, the colonies are colorless. what are two things you can determine from this growth pattern and appearance. of colonies on the macconkey agar? check two.
Answers
The bacteria are able to grow aerobically on both blood agar and MacConkey agar. The colorless colonies on the MacConkey agar indicate that the bacteria cannot ferment lactose.
Based on the given information, two things can be determined are:
The bacteria growing on both plates are able to grow in the presence of oxygen because both blood agar and MacConkey agar are aerobic media.
\The colorless colonies on the MacConkey agar indicate that the bacteria are not able to ferment lactose. MacConkey agar is a selective and differential medium that is commonly used to isolate and identify Gram-negative bacteria based on their ability to ferment lactose. Lactose-fermenting bacteria produce pink/red colonies on MacConkey agar, while non-lactose-fermenting bacteria produce colorless colonies. Therefore, the absence of pink/red colonies on the MacConkey agar indicates that the bacteria in question cannot ferment lactose.
To know more about ferment lactose
https://brainly.com/question/30694630
#SPJ11
Related Questions
What model aims to understand how foragers gather food with the least expenditure of time, calories, and other factors
Answers
The model that aims to understand how foragers gather food with the least expenditure of time, calories, and other factors is called Optimal Foraging Theory.
Optimal Foraging Theory is a framework used to study the foraging behavior of animals and how they make decisions about where and how to search for food. The theory suggests that animals will try to maximize their energy intake while minimizing the energy expenditure required to obtain food.
In order to achieve this, foragers will make decisions based on factors such as the abundance and distribution of food resources, the energy content of different food items, and the costs associated with searching and handling food. By using this information, foragers can determine the most efficient strategies for obtaining food.
Overall, Optimal Foraging Theory helps to explain how animals adapt their foraging behavior to optimize their energy gain, taking into account various ecological and environmental factors.
Learn more about Optimal Foraging Theory here: https://brainly.com/question/30324826
#SPJ11
8. Which of the following is NOT an example of potential energy?
A. A running woman
B. A compressed spring
C. An apple dangling off a branch
D. A candy bar
Answers
Answer:
A running woman
Explanation:
A running woman is not an example of potential energy because potential energy is stored energy that is not yet being used. A running woman is using energy and is not storing it.
True or False : The "M Phase" of the cell cycle refers to the mitochondria found in the cell.
Answers
The given statement "The "M Phase" of the cell cycle refers to the mitochondria found in the cell" is false because the M Phase of the cell cycle refers to the Mitotic Phase, which is the stage of the cell cycle during which the cell undergoes division into two daughter cells
The M Phase of the cell cycle refers to the Mitotic Phase, which is the stage of the cell cycle during which the cell undergoes division into two daughter cells. This phase is one of the most critical and complex stages of the cell cycle, involving several intricate processes such as chromosome condensation, spindle formation, and cytokinesis. Mitosis is a highly regulated process that ensures that each daughter cell receives an identical set of chromosomes.
In contrast, mitochondria are organelles that are responsible for energy production through cellular respiration, a process that occurs throughout the cell cycle. Mitochondria are double-membrane organelles found in most eukaryotic cells and are essential for cellular respiration and energy metabolism. They also have their own DNA, known as mitochondrial DNA, which is inherited solely from the mother. Mitochondria play an important role in cell signaling, apoptosis, and cellular differentiation, among other functions.
Therefore, the given statement is false.
To learn more about Mitotic Phase
https://brainly.com/question/13340749
#SPJ1
a cell contains a 4% concentration of salt. the cells enviornment is isotonic. which is a possible salt concentration outside the cell?
Answers
Answer: 4%
If it was another then it would not make any sense.
Explanation:
Hope this helps you!!!!!!! :D
What is
evaporation, and
how does it
contribute to the
survival of
species
Answers
Answer:
The evaporation happens when a liquid turns into a gas and this help when evaporation removes heat and can act as a cooling mechanism
write out the pathway of blood entering the kidney by way of the renal artery to its exit from the kidney by way of the renal vein. (list all the blood vessels in order)
Answers
The blood enters the kidney through the renal artery and gets divided into many parts such as segmental arteries, interlobar arteries, arcuate arteries, and so on. These then combine through interlobular, arcuate, and interlobar veins and drain into renal veins.
Renal arteries divide into 5 segmental arteries which supply to corresponding segments of the kidney.
Segmental arteries then divide to form interlobar arteries which then in turn get converted to Arcuate arteries.
Arcuate arteries then give interlobular arteries. These then finally divide into Afferent arterioles and form glomerular capillaries around the bowman's capsule.
After Bowman's capsule, the arteriole is known as the Efferent arteriole. This then forms the peritubular capsule plexus.
This then gives Stelate veins which drain into interlobular veins.
This interlobular vein forms together Arcuate veins. these veins drain in the interlobar vein. These interlobar veins form the Renal vein which exits through the hilum of the kidney.
Learn more about Kidneys:
https://brainly.com/question/26062461
the pathway of blood entering and exiting the kidney. Here's the order of blood vessels involved:
1. Renal artery
2. Segmental arteries
3. Interlobar arteries
4. Arcuate arteries
5. Interlobular arteries
6. Afferent arterioles
7. Glomerulus (capillary network)
8. Efferent arterioles
9. Peritubular capillaries
10. Interlobular veins
11. Arcuate veins
12. Interlobar veins
13. Renal vein
The blood enters the kidney through the renal artery, goes through a series of progressively smaller blood vessels, reaches the glomerulus for filtration, and then exits the kidney via the renal vein.
to know more about glomerulus please vist :-
https://brainly.com/question/21754655
#SPJ11
How do people get groundwater?
Answers
Answer:
You didn't provide any answer choices.
Answer(..?):
Drilling or digging wells.
Describe the nutritional therapy rationale for modified diets, including qualitative and quantitative changes. (Please make sure you utilize your textbook, web links and/or lecture slides to assist in answering the discussion)
Answers
Modified diets in nutritional therapy involve both qualitative and quantitative changes to address specific health conditions.
Nutritional therapy utilizes modified diets to address specific health conditions and optimize nutritional intake. The rationale behind modified diets involves qualitative and quantitative changes to achieve therapeutic goals.
Qualitative changes refer to alterations in the quality of nutrients consumed. For example, a modified diet for individuals with cardiovascular disease may include reducing the intake of saturated and trans fats while increasing the consumption of heart-healthy fats like omega-3 fatty acids. Similarly, a modified diet for individuals with diabetes may focus on controlling carbohydrate intake to manage blood sugar levels effectively.
Quantitative changes involve adjusting the number of nutrients consumed. This can involve calorie modifications to promote weight loss or gain, depending on the individual's needs. For instance, a modified diet for obesity management may restrict calorie intake, while a modified diet for underweight individuals may aim to increase calorie consumption.
To learn more about nutritional therapy
https://brainly.com/question/29065286
#SPJ4
Name and put the stages of a lytic infection in order. Then describe each stage.
Answers
1. Attachment: The virus attaches to a host cell by binding to specific receptors on the surface of the cell.
2. Penetration: The virus injects its genetic material (DNA or RNA) into the host cell, typically by fusing with the cell membrane or by endocytosis.
3. Biosynthesis: The viral genetic material takes over the host cell's machinery, forcing it to produce viral components such as proteins and nucleic acids.
4. Maturation: The viral components are assembled into new virus particles within the host cell.
5. Release: The host cell is destroyed, releasing the newly formed virus particles to infect other cells.
In summary, the virus attaches to the host cell, injects its genetic material, takes over the host cell's machinery to produce viral components, assembles the viral components into new virus particles within the host cell, and then destroys the host cell to release the newly formed virus particles.
In an earthworm is the dorsal blood vessel or the ventral blood vessel larger?
Answers
Answer:
Dorsal lol, its contracts and pumps blood to the aortic arches.
what cultural changes did bipedalism cause
Answers
Answer: Taller creatures were able to reach higher places for food and interact with different creatures. This changed family life when parents had to care for their young for a longer period of time and for working together.
Explanation:
PLEASE HELP ASAP!!!!
You will need to look at the observations you have made, and try and draw conclusions for what you have observed. Answer the following questions using a minimum word count of at least 500 WORDS total.
Did the species stay or leave the area in your time frame?
If the species left, did it return? Why do you think it did this?
Was the species alone or in a group?
Did you see any patterns in how they grouped together?
Can you tell if they were a mixed group (males and females, adults and juveniles) or homogeneous?
What was the behavior of the species: sleeping, eating, playing, etc.
Where there any juveniles or babies around? If so, what was the behavior of the organism?
Once you find a pattern, discuss what you believe is the explanation, and support it with at least two sources of support. Note: this is not your opinion on their behavior, but the scientifically supported research discussing the species' behavior as documented by others.
Then the other days are the following:
4/1/23 - 5:20PM. Sunny.
At the moment the chickens (many of the same species) were calmly scratching/digging through the dirt. Since yesterday there were leftover peppers given to the chickens, there were still some there until the next day.
Which some of the chickens were eating and interacting with it.
4/1/23 - 6:00PM. Sunny.
At the moment the chickens (many of the same species) were calmly dusting/showering in the dirt. They seem to enjoy doing it. Most of the chickens were filled with plenty of dirt. They were interacting with the dirt for the 10 minutes.
4/1/23 - 6:40PM. Sunny.
At the moment the chickens (many of the species) were surrounding me as refilled their waters/feeders for the evening. I make sure they have enough for the next day! Since there were puddles of water there from me filling up there waters they begun scattering/digging through the dirt. They tend to do that, and as they do that they make interactions with bugs.
4/1/23 - 9:00PM. Mostly cloudy. At the moment the chickens (many of the species) were already sleeping. I was doing my nightly check in to make sure they are ok. No interactions here, just chickens sleeping peacefully.
Answers
Based on the observations, it can be concluded that the chickens were calm and interacted with their environment throughout the day.
What was the behavior of the chickens?Observation 1: 4/1/23 - 5:20PM. Sunny.
At the moment the chickens (many of the same species) were calmly scratching/digging through the dirt. Since yesterday there were leftover peppers given to the chickens, there were still some there until the next day. Some of the chickens were eating and interacting with it.
Observation 2: 4/1/23 - 6:00PM. Sunny.
At the moment the chickens (many of the same species) were calmly dusting/showering in the dirt. They seem to enjoy doing it. Most of the chickens were filled with plenty of dirt. They were interacting with the dirt for 10 minutes.
Observation 3: 4/1/23 - 6:40PM. Sunny.
At the moment the chickens (many of the species) were surrounding me as refilled their waters/feeders for the evening. I make sure they have enough for the next day! Since there were puddles of water there from me filling up their waters they begun scattering/digging through the dirt. They tend to do that, and as they do that, they make interactions with bugs.
Observation 4: 4/1/23 - 9:00PM. Mostly cloudy.
At the moment, the chickens (many of the species) were already sleeping. I was doing my nightly check-in to make sure they are ok. No interactions here, just chickens sleeping peacefully.
In conclusion, the chickens observed in the given time frame remained in the area and engaged in natural behaviors such as scratching, dusting, and foraging. The chickens were gregarious and sociable, and no significant differences were observed between adult and juvenile chickens.
The observed behavior of the chickens is consistent with previous research and is indicative of the species' natural behaviors. The chickens' attraction to dirt, water, and bugs is a natural behavior that enables them to maintain their well-being and overall health.
Learn more about chickens at: https://brainly.com/question/30725016
#SPJ1
For a gamete cell with a haploid number of 24, the diploid number of the zygote
produced after fertilization would be what
Answers
Answer:
48 for the Zygote
Explanation:
A gamate(sperm) + gamate (egg)= Zygote so if the gamete as 24 its just 24+24 = 48
Society is like a biological organism, with each organ dependent on the others for survival.a. Trueb. False
Answers
Society is like a biological organism, with each organ dependent on the others for survival is true.
The dominant-recessive link between the C and c alleles can be used to explain this outcome. Each offspring of two heterozygous dogs (C/c) has a 50% chance of getting either the dominant C allele from one parent or the recessive c allele from the other. In this instance, the smooth-haired puppy (c/c) expressed the smooth hair phenotype due to inheriting two copies of the recessive c allele.
The genotype of the parents can be deduced from the phenotype of the offspring, but without additional genetic testing, it is not possible to know the precise combination of alleles that each parent contributed to the offspring.
To know more about society, click here,
brainly.com/question/25689420
#SPJ4
What provides the set of guiding principles for managing wildlife resources?
Seven Rules for Fair Chase
Seven Sisters of Habitat Reconstruction
North American Free Trade Agreement
North American Model of Wildlife Conservation
Answers
Answer:
North American model of wildlife conservation
Explanation:
North American model of wildlife conservation provide the guiding rules because it was created in the 19th century to provide set of building rules to guide the management of wildlife and conservation in the United States and Canada on the best decisions to take in wildlife management.
It was created due to increase in Extinction of wildlife species and increase in sportsmen.
The correct answer is The North American Model of Wildlife Conservation provides a set of guiding principles for managing wildlife resources, which is the last option, as the North American Model of Wildlife Conservation is a framework that originated in North America and is widely recognized as a successful approach to wildlife management.
Wildlife belongs to all citizens and is managed by government agencies on behalf of the public. The model promotes the elimination of market hunting and the commercial exploitation of wildlife. Wildlife resources are allocated and regulated through laws and regulations to ensure equitable access and sustainable use.
Learn more about wildlife here.
https://brainly.com/question/32036674
#SPJ6
A person without the allele for sickle cell anemia has children with a person who is a carrier for sickle cell anemia but doesn’t have the disease. What percentage of their children will have sickle cell anemia? What percentage of their children will be carriers for sickle cell anemia? Show your work with a Punnett square. Plese help!!!!
Answers
If one parent has sickle cell trait (HbAS) and the other does not carry the sickle haemoglobin at all (HbAA) then none of the children will have sickle cell anaemia. There is a one in two (50%) chance that any given child will get one copy of the HbS gene and therefore have the sickle cell trait.
what is sickle cell anemia ?Sickle cell anemia is a type of hereditary disease provides less oxygen to cells due to a change in the shape of red blood cells, so that it fails to carry oxygen to cells.
The effected or mutated part is the beta gene which is generally makes hemoglobin but due to the mutation in the amino acid, the protein formed is defected and fails to perform its normal function.
To know more about sickle cell anemia, visit
https://brainly.com/question/14511609
#SPJ1
hi could somebody help me
Answers
Answer:
MOUTH:
Food becomes moistFood is cut into piecesFood is squeezedSTOMACH:
Proteins are broken downFood is mixed with acidCarbohydrates are broken downI hope this helps :)
Explanation:
plz mark B R A I N L I E S T
Answer:
Mouth :
Food is cut into piecesCarbohydrates are broken downFood is squeezedStomach :
Proteins are broken downFood becomes moistFood is mixed with acidhope it helps!
intrinsic changes in arteriole radius have no effect on arterial blood pressure. t/f
Answers
The statement "intrinsic changes in arteriole radius have no effect on arterial blood pressure." is true.
Intrinsic changes in arteriole radius refer to adjustments made within the blood vessels themselves, usually through mechanisms like local metabolic activity or myogenic regulation. These changes primarily impact local blood flow and tissue perfusion rather than arterial blood pressure.
Arterial blood pressure is mainly influenced by factors such as cardiac output, blood volume, and systemic vascular resistance, which involve the entire cardiovascular system.
While changes in arteriole radius can influence vascular resistance, their intrinsic nature generally does not have a significant impact on arterial blood pressure as a whole.
To know more about arteriole click on below link:
https://brainly.com/question/29360490#
#SPJ11
 What organisms always form the base of an energy pyramid (or to be listed in food chains)? Why are they in that position?
Answers
Answer: plants
Explanation: plants are producers, meaning they make their own food (photosynthesis).
I have a few biology questions!
2. What statement about crossing-over is true?
a. The genetic variability of the off spring is reduced.
b. It occurs during meiosis.
c. Genes located far apart on a chromosome are less likely to be separated.
d. It occurs between chromosomes that are NOT homologous.
4. The lac genes are turned off when
a. lactose is present.
b. RNA polymerase binds to the promoter.
c. the repressor binds to the operator.
d. RNA polymerase binds to the repressor.
10. Which of the following is NOT a factor that affects photosynthesis?
a. temperature
b. water availability
c. light intensity
d. heterotroph availability
12. In the Krebs cycle, pyruvic acid is
a. generated so that glycolysis can continue.
b. broken down into carbon dioxide.
c. used to convert ATP into ADP.
d. broken down into glucose.
Answers
Answer:
2)a
4)a
10)d
12)b
Which of the following are not correctly paired?
Answers
Answer:
um where are the answer choices?
Explanation:
i'll try to answer in the comments if i am able to!! if not, huge sorry..
PLEASE HELPP!! will give brainly
super simple! just got a lot of work on my plate. thank you!!
Answers
Answer:
EVOLUTION
Explanation:
ASAP is for my brother
Answers
Answer:
I think this is right.
Explanation:
1. nucleus
2. Golgi apparatus
3. lysosome
4. mitochondria
5. peroxisome
6. ribosomes
7. cell (plasma) membrane
8. smooth endoplasmic reticulum
what is the use of base
Answers
Answer:
to change colour of chemical
Answer:
to multiply hight and know after that tthe rectantange or are
Help please ABC OR D
Answers
Answer:
middle awnser
Explanation:
no way the other one is true presses of eliminating
determine if the following heart structure carry oxygenated or deoxygenated blood and drag them to the corresponding boxes
Answers
Oxygenated blood flows through the following blood vessels:
aortapulmonary veinleft ventricleDeoxygenated blood flows through the following blood vessels:
pulmonary trunkpulmonary arteryright atriumWhich blood vessels carry oxygenated and deoxygenated blood?Oxygenated blood is blood which has a high concentration which is coming from the lungs.
Oxygenated blood flows through the following blood vessels:
aortapulmonary veinleft ventricleDeoxygenated blood is blood which comes from the body going towards the lungs.
Deoxygenated blood flows through the following blood vessels:
pulmonary trunkpulmonary arteryright atriumIn conclusion, the blood vessels are responsible for transporting blood trough the body.
Learn more about blood vessels at: https://brainly.com/question/11763276
#SPJ1
During a football game, you are starting to feel cold, your body starts to shiver. What is the path of communication between your nervous system and endocrine system to help your body stay warm?
Multiple choice question.
A)
Your sensory receptors in the nervous system recognize the external change in the environment and send a signal through the somatic nervous system to your muscles and glands and tell them to start shivering.
B)
Your sensory receptors in the nervous system are blocked due to the lower temperatures so the internal receptors know that something must be wrong. It works with the endocrine system to maintain homeostasis.
C)
Your sensory receptors in the nervous system recognize the external change in the environment and immediately send a signal through the autonomic nervous system to a gland that gradually communicates your internal body temperature is also changing. Both systems work together to maintain homeostasis.
D)
Your sensory receptors in the nervous system recognize the external change in the environment and send a signal through the autonomic nervous system to your muscles and tell them to start shivering. The endocrine system is useless.
E)
Your sensory receptors in the nervous system can’t recognize the external change in the environment and rely on the endocrine system to help them know when to communicate with the muscles to shiver.
Answers
Answer:
C)
Your sensory receptors in the nervous system recognize the external change in the environment and immediately send a signal through the autonomic nervous system to a gland that gradually communicates your internal body temperature is also changing. Both systems work together to maintain homeostasis
Explanation:
The answer basically gives you an explanation, but here is mine:
The nervous system works heavily with the brain by sending signals through nerves. The endocrine system secrete chemicals for wide ranges of things, but it does this with a message that is relayed the nervous system. Since in this problem the temperature is decreasing, then the nervous system will send a message to the brain and then the message gets sent to whatever system is needed to adapt to the temperature decrease which in this case it the endocrine.
This was pretty lengthy, but I hope it helps :)
Question 3 of 10 How do your cells get energy from peanut butter? O A. Their chromosomes use nucleic acids from the peanut butter to make proteins. O B. Their cell membranes use DNA from the peanut butter to make phospholipids. O C. Their nuclei use lipids from the peanut butter to make more DNA. O D. Their mitochondria use sugar from the peanut butter to make a usable form of energy. SUBMIT
Answers
Answer:
D
Explanation:
The body gains most energy from carbohydrates. Sugar is an example of a carbohydrate. These carbs then go to the mitochondria and are used in cellular respiration in order to make ATP, the body's usable form of energy.
Answer:
Most natural foods which contain resting cell tissue, such as grains of seed, have only high-molecular-mass nucleic acid components with different concentrations; however, growing cell tissue (e.g. soya-bean sprouts) show, as well as the nucleic acids, some lower-molecular-mass compounds
How does a negative feedback
loop maintain homeostasis?
A. it creates an external response
B. it works to bring the body back to the target of
stability
C. it moves the characteristic above normal
limits
D. it creates an increase in product of a reaction
Answers
Negative feedback helps to keep a variable within its regular range and lessens an overreaction.
How does unfavourable criticism work and what is it?
Negative feedback occurs when an output of a system, process, or mechanism is given back in a way that aims to reduce oscillations in the output, whether these oscillations are caused by changes in the input or other disturbances.
What possible repercussions could negative feedback have?
Because the feedback energy (voltage or current) is out of phase with the input signal when there is negative feedback, the input signal opposes the feedback energy. Negative feedback reduces the amplifier's gain. It also reduces distortion, noise, and instability. The bandwidth is increased while the input and output impedances are improved by this feedback.
Become familiar with Bandwidth.
Check out the question at
brainly.com/28436786
#SPJ1
Answer: B
Explanation:
Describe the structure and the function of the stomach. Be sure to include cells and tissues relating to this organ.
Answers
Connective tissues support the tissues of the mucosa and connect it to the muscularis layer.
The blood supply of the submucosa provides nutrients to the wall of the stomach. Nervous tissue in the submucosa monitors the contents of the stomach and controls smooth muscle contraction and secretion of digestive substances.
What is the function of the stomach?The stomach secretes acid and enzymes that digest food. Ridges of muscle tissue called rugae line the stomach.
The stomach muscles contract periodically, churning food to enhance digestion. The pyloric sphincter is a muscular valve that opens to allow food to pass from the stomach to the small intestine.
Thus, this could be the answer.
To learn more about stomach click here:
https://brainly.com/question/8836658
#SPJ1