When a young, vigorously growing culture of bacteria is transferred to fresh medium of different composition, the lag phase is usually short or absent. (T/F)
Answers
True. When a young, vigorously growing culture of bacteria is transferred to fresh medium of different composition, the lag phase is usually short or absent.
This is because the cells are already adapted to the growth conditions and do not need to undergo a period of adjustment before resuming growth. In contrast, when a culture is transferred to a medium of the same composition, there may still be a lag phase as the cells adjust to the new environment. During the lag phase, bacteria are synthesizing new enzymes and adjusting to the new nutrient availability in the medium. Once this adjustment period is over, the bacteria enter the exponential phase, where they rapidly grow and divide. The length of the lag phase can vary depending on the specific bacteria, the composition of the medium, and the growth conditions. However, in general, a short or absent lag phase is an indication that the bacteria are well-adapted to their environment and can quickly resume growth.
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Related Questions
Question 11 (1 point)
A cell containing 28 chromosomes undergoes mitosis and cell division. How many chromosomes will each of the resulting daughter cells
contain?
a
28
b
7
с
56
d
14
Answers
Answer:
D
Explanation:
after mitosis II the daughter cell will have half of the chromosomes the father cell has.
A cell containing 28 chromosomes undergoes mitosis and cell division, and then each daughter cell will contain 28 chromosomes too, as the mitosis is the equational division that is in option a.
What is the significance of mitosis?Mitosis is an essential process that plays a crucial role in the growth, repair, and other essential processes that occur in all living organisms, such as growth and repair by producing new cells to replace old or damaged ones, mitosis helps in development as it creates the vast number of cells needed to form the complex structures of the body and takes part in asexual reproduction.
Hence, a cell containing 28 chromosomes undergoes mitosis and cell division, and then each daughter cell will contain 28 chromosomes too, as the mitosis is the equational division that is in option a.
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Labrador retrievers may have yellow fur, chocolate fur, or black fur. Coat color is determined by two genes. "E" determines dark coat and "e" light coat color. "B" determines whether the dark fur will be black, which is dominant, or brown. If you mate two chocolate labs together, what color offspring can they have
Answers
Hope this help you
Question: Skeletal muscles must work in pairs because they can only _____.
Pls help it’s due tomorrow
Answers
Answer: easy contract! Happy A my guy/girl
Explanation:
Question 5 of 30
What information can a scientist learn directly from a single fossil?
A. The organism's shape and size
B. How the organism is related to others
C. The life expectancy of similar organisms
D. How many offspring the organism produced
SUBMNT
Answers
Answer:
C. The life expectancy of similar organisms
Scientific models are based on a set of observations.
Please select the best answer from the choices provided
OT
0 F
Answers
Answer:
Scientific models are based on a set of observations. Scientific models are based on current knowledge, which can limit their effectiveness when new discoveries are made. ... Scientists utilize models for a variety of different purposes, but each type of scientific model has limitations.
Explanation:
thank me later
6. One of the main functions of the semi-permeable cell membrane is to maintain
homeostasis for the cell. Semi-permeable means that only some molecules are
allowed to cross the membrane and others are not.
What molecule enables large molecules to cross the membrane?
-carbohydrates
-proteins
-nuclear acids
-lipids
Answers
Answer:
proteins
Explanation:
im not sure tho, hope it helps
how would you define a fruit? how can fruit be helpful in seed dispersal?
Answers
Answer:
Defined: the sweet and fleshy product of a tree or other plant that contains seed and can be eaten as food.
These fruits, including the seeds, are eaten by animals who then disperse the seeds when they defecate
Explanation:
Hope it helps?
Two sounds are described below:
Sound 1: This sound is produced by slow vibrations.
Sound 2: This sound has waves where the tops are far apart.
Which statement is true about the sounds? (2 points)
a
Both are high pitch sounds.
b
Both are low pitch sounds.
c
Sound 1 is high pitch and Sound 2 is low pitch.
d
Sound 1 is low pitch and Sound 2 is high pitch.
Answers
Answer:
B
Explanation:
Low-pitched sounds don't vibrate a lot and their wavelengths are farther apart meaning the tops of the wave will be farther.
Also, this isn't a biology question. Have a good day.
a process that forms a sedimentary rock?
Answers
I hope this helps♀️
Which of the following statements would be an inference, NOT an
observation?
Answers
who had discovered cell and in which year
Answers
Answer:
Robert Hooke discovered cell in 1665.
1. Critic the following two views from the perspective of today’s sustainability. (50 points)
• Aristotle’s anthropocentric view: "Plants exist to give food to animals, and animals, to give food to men. … Since nature makes nothing purposeless or in vain, all animals must have been made by nature for the sake of man."
• Biocentric outlook by Paul Maylor: It values all living things in Earth’s community, so each organism is "a center of life pursuing its own good in its own way," and all organisms are interconnected.
Answers
Aristotle's anthropocentric view places humans at the center and considers other organisms as means to human ends, whereas the biocentric outlook recognizes the intrinsic value of all living things and emphasizes the interconnectedness and independent pursuit of well-being by each organism.
Aristotle's anthropocentric view, while reflective of the dominant perspective during his time, is heavily criticized from the perspective of today's sustainability. This view places humans at the center and considers the natural world as existing solely for human benefit. It disregards the intrinsic value and interconnectedness of all living organisms and ecosystems. This anthropocentric mindset has led to unsustainable practices, exploitation of natural resources, and the degradation of ecosystems, resulting in environmental crises such as climate change, habitat loss, and species extinction.
On the other hand, Paul Maylor's biocentric outlook aligns more closely with the principles of sustainability. It recognizes the inherent worth and autonomy of all living beings and acknowledges the interdependence of organisms within Earth's community. This perspective emphasizes the need for ecological balance and harmonious coexistence, promoting a more holistic approach to environmental stewardship.
From the standpoint of sustainability, the biocentric outlook offers a more comprehensive and ecologically responsible framework. It encourages a shift away from exploitative practices towards a greater respect for the intrinsic value of nature and the need for conservation and preservation. By recognizing the interconnectedness of all life forms, this perspective promotes sustainable living that supports the well-being of both humans and the natural world.
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The __________ nerve connects with the auditory nerve to relay information to the brain about balance. a. cochlear b. vestibular c. optical d. kinesthetic please select the best answer from the choices provided a b c d
Answers
Answer:
Kinesthetic
Explanation:
Even with your eyes closed you can tell where your limbs are located and in which direction you are going, thanks to the kinesthetic nerve.
Answer:
B. Vestibular
Explanation:
edge 2022
Which of the following best explains why what we know about cells is called a theory and not a law? (4 points) a We do not have enough evidence yet to call cell theory a law. b We have not reviewed cell behavior enough yet to call it a law. c Cell theory is still changing but may eventually become a law. d Cell theory explains cell behavior where a law would describe it.
Answers
Cell theory explains cell behavior where a law would describe it explains about cells is called a theory and not a law.
What do you mean by cell theory?Cell theory is a scientific theory first formulated in the mid-nineteenth century, that living organisms are made up of cells, that they are the basic structural/organizational unit of all organisms, and that all cells come from pre-existing cells.
Everything that lives is made up of cells. The second part of cell theory was that new cells are formed from preexisting cells. The third part is that all cells are similar. Finally, cells are the most basic units of life.
The cell theory, or cell doctrine, states that all organisms are composed of similar units of organization, called cells. The concept was formally articulated in 1839 by Schleiden & Schwann and has remained as the foundation of modern biology.
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If the concept of evolution is defined as a scientific theory, what must be true about the concept of evolution?
Answers
Answer:
Change occurs in the heredity characteristic of living organism over time.
Explanation:
Change occurs in the heritable characteristics of living organisms with the passage of time is known as evolution. Evolution consist of three basic principles which are variation, heredity, and differential fitness. The organisms evolved with the passage of time due to change in the environmental conditions which able them to survive in that harsh climatic conditions and those which is not evolved can't survive and in the end extinction occur.
PLEASE HELP! A flower has the genotype for red and white petals. Describe the offspring phenotype if the flower follows these inheritance patterns.
a. Codominant ? __________
b. Incomplete dominance? ___________
Answers
Answer:
Explanation:
Co dominant would give flower with red and white petals (heterozygous), whereas, incomplete dominance would sort of mix both the genotypes and give new color, in this case we will see a pink color for heterozygous genotype.
Which of the following statements about muscles of the elbow joint is true?
a. the brachioradialis originates and inserts on the ulna.
b. The biceps brachii is a posterior extensor.
c. The biceps brachii has two heads that share the same origin site.
d. None of the statements is correct.
Answers
From all the given options, the correct statement about muscles of the elbow joint is (c) The biceps brachii has two heads that share the same origin site.
The correct statement about muscles of the elbow joint is (c) The biceps brachii has two heads that share the same origin site. The biceps brachii is a muscle located in the upper arm and is involved in flexing the elbow joint. It consists of two heads, the long head and the short head. Both heads share a common origin point at the scapula, specifically the supraglenoid tubercle. The long head of the biceps brachii originates from the supraglenoid tubercle and runs along the intertubercular groove of the humerus. The short head originates from the coracoid process of the scapula. Both heads merge together and insert onto the radial tuberosity of the radius bone in the forearm.Thus, option (c) correctly describes the origin of the biceps brachii muscle, while options (a) and (b) are incorrect statements.
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which of the following statements is true? select an answer and submit. for keyboard navigation, use the up/down arrow keys to select an answer. a if an argument has a deductively valid form, its premises entail its conclusion. b if an argument's premises entail its conclusion, the argument has a deductively valid form. c the disjunction of two sentences is only true if both sentences are true. d even if an argument has the form of modus ponens, its premises may not entail its conclusion.
Answers
A strong argument is one that has true premises and is legitimate. In this sense, the word "sound" means "true." A faulty argument is one that has a false premise and is therefore inadmissible.
A strong argument is only convincing if all of its premises are true. Each claim or proposition has a premise that serves as its basis. A valid argument cannot, by definition, have a false conclusion and all true premises. As a result, a flawed conclusion indicates an incorrect premise in an argument. The argument is deductively valid when it is impossible for both the premises and the conclusion to be incorrect. A claim is deductively valid if and only if it is impossible for both of its premises to be true. As long as anything is true, it is regarded as sound.
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Which product is a source of energy that plants use to grow?
Answers
Answer:
photosynthesis
Explanation:
In order for plants to survive, they must be able to undergo photosynthesis, respiration, and transpiration. Which plant structures are the most essential for those three processes?.
Answers
Chloroplasts, thylakoids, and chlorophyll are the three main biological components that make sure photosynthesis occurs. Chloroplasts found in the mesophyll of leaves are where photosynthesis occurs.
The leaves, stems, and roots of a plant are its principal "organs" or structures. They are composed of collections of specialized tissues with structures that are appropriate for the functions they carry out. The key characteristics of these buildings and their purposes are summarized in the table below. In plants, the chloroplasts, which house the chlorophyll, are where photosynthesis occurs. The thylakoid membrane, a third inner membrane that creates lengthy folds within the chloroplast and is bordered by a double membrane, is present inside chloroplasts.
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which structures are highlighted? the image shows red stripes of tissue. the highlighted structure is a branched thread that makes a contact with these stripes via specific bulbs.which structures are highlighted? motor axons muscle fibers motor end plates capillaries
Answers
Motor axons is a branched thread that makes a contact with these stripes via specific bulbs.
A is the correct answer.
Axons extend from the spinal cord to the muscles of the hands and feet, carrying instructions from motor neurons as they travel from the brain. Motor neuron axons are harmed and degenerate in disorders like spinal muscular atrophy, preventing the brain from sending messages to the muscles, which impairs movement.
The spinal cord's ventral horn contains a number of sizable cells called motor neurons. In order to transmit impulses to the motor neuron, they contain a variety of structures called dendrites. The axon, a sizable process on the motor neuron, connects the neuron to a muscle fibre at its opposite end.
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The complete question is:
Which structures are highlighted? the image shows red stripes of tissue. the highlighted structure is a branched thread that makes a contact with these stripes via specific bulbs.
A. motor axons
B. muscle fibers
C. motor end plates
D. capillaries
How do you switch objectives?
Answers
Answer: Turn the rotating nosepiece.
Explanation:
Please help if you answer correctly i will give brainliest
Answers
Answer:
1) Chicken: Codominance
2) Zebra: Independent assortment
3) Flowers: Incomplete dominance
4) Dalmatian: Law of segregation
Explanation:
Due to technical problems, you will find the complete explanation in the attached files
What are the base pairs for DNA?
Answers
Thymine
Guanine
Cytosine
(Uracil instead of Thymine if it is RNA)
Which of the following words uses the same
meaning of the prefix "co-" as it means in the
word "codominance?"
- Contradict
- Cooperate
-Coca Cola
-Counter
Answers
The answer you're looking for is "Cooperate", since it means two or more people working together, and "Codominance" means two or more different versions of the same gene are present in one offspring (in biology)! I hope this helps :)
Answer:
Cooperate
Explanation:
The word "codominance" means to have two dominant genes. The prefix co in this scenario means two, just like in the word cooperate, which means two people working together to meet the same goal.
Understand prefixA prefix is a syllable that is added to the beginning of a word. This helps define and change the meaning. Example: Indefinite. The base word is 'definite' and means to be without doubt. But when you add the prefix 'in', it translates to uncertain or vague. This is because the prefix 'in' means 'not'.
Learn more about root words and affixes here:
https://www.readingrockets.org/article/root-words-roots-and-affixes
Axial Region
Bones from Region
Location of Axial Region
Skull
Vertebral Column
Sacrum
Rib Cage
Answers
Answer:
The axial region is the central part of the human body, and it includes the bones of the skull, vertebral column, sacrum, and rib cage. The skull is made up of the cranium and facial bones, which form the main part of the head. The vertebral column runs from the base of the skull to the base of the spine, and it is composed of 33 individual vertebrae. The sacrum is the triangular-shaped bone located at the base of the spine, and the rib cage is made up of 24 ribs. These bones together form the axial region of the human body.
Explain how selective breeding is done. Describe how this helps farmers to increase crop and poultry production.
Answers
Answer:
Selective breeding is when a human or farmer in this case selects two plants or chickens with the best traits in order to get a good yield and quality for the products they are producing. I hope this helps!
You are told that you must be placed on a high dose of a broad-spectrum antibiotic to treat a serious infection. You re concerned that this therapy will seriously disrupt your intestinal microbiota, possibly leading to intestinal disease such as caused by Clostridium difficile. In advance of the treatment, what might you do to ensure that your normal intestinal microbiota is restored after extended antibiotic therapy? Discuss two ways this restoration could be accomplished, one that would return your exact microbiota and one that would return some representative species.
Answers
To ensure restoration of normal intestinal microbiota after extended antibiotic therapy, one approach to return the exact microbiota would be through fecal microbiota transplantation (FMT).
FMT involves transferring fecal matter from a healthy donor to the recipient's gastrointestinal tract, reintroducing a diverse range of microbial species.
Alternatively, to return some representative species of the microbiota, one could focus on probiotic supplementation. Probiotics are live microorganisms that, when consumed in adequate amounts, confer health benefits.
By taking specific probiotic strains known to be beneficial for gut health, such as Lactobacillus or Bifidobacterium species, the restoration of key microbial populations can be promoted.
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In an experiment, Juanita wants to determine the effect of fertilizer on the growth of grass. what is the independent and dependent variables in this experiment?
Answers
Answer:
Independent Variable: Fertilizer
Dependent Variable: The growth of the grass
Explanation:
The independent variable is the thing you change in an experiment. The dependent variable is the thing that is affected by the independent variable.
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Which best explains enzyme specificity?
a.
An enzyme reacts best at a certain pH.
b. An enzyme reacts best at a certain temperature.
c. An enzyme is able to react with only one substrate.
d. An enzyme is able to react with many different substrates.
Answers
C. An enzyme is able to react with only one substrate.