Answers
Answer:
67. Obligate anaerobes
68. Aerotolerant anaerobes
69. pH
70 media nutrient density
71. agar concentration
72. extremophiles
Explanation:
Anaerobes are microorganisms which do not require oxygen for their metabolic activities. The types of anaerobes based on metabolism are: obligate anaerobes; facultative anaerobes ; and aerotolerant anaerobes.
Some bacteria are anaerobes.
67. Obligate anaerobes do not require oxygen at all for their metabolism. They die in the presence of oxygen.
68. Aerotolerant anaerobes do not require oxygen as well but can also tolerate oxygen. they are unaffected by the presence or absence of oxygen
69. The pH of the medium affects the growth of bacteria. When pH becomes too low or too high, bacteria colonies begin to die.
70. when the nutrient concentration is high, growth rate of bacteria colony increases, but when it is low, bacteria colony growth decreases.
71. agar concentration limits the growth of bacteria colony. When the agar is very concentrated, that is the medium is hard, the bacteria colony is limited in their ability to move and vice versa.
72. Extremophiles is the name given to archaea that thrive in extreme conditions of temperature and pH. For example, the archaeal Methanopyrus kandleri strain 116 grows at 122 °C while the genus Picrophilus e.g., Picrophilus torridus has the ability to grow at a pH of 0.06.
Related Questions
In a dihybrid cross, if two heterozygotes (for both genes) are crossed, what will be the expected phenotypic ratios? (In the following order: dominant for both traits; dominant for the first trait and recessive for the second; recessive for the first trait and dominant for the second; recessive for both traits.)
Group of answer choices
6:6:3:1
4:4:4:4
9:3:3:1
1:2:2:1
Answers
In a dihybrid cross, if two heterozygotes (for both genes) are crossed, the expected phenotypic ratios is as follows:
dominant for both traits: 9dominant for the first trait and recessive for the second: 3recessive for the first trait and dominant for the second; 3recessive for both traits: 1WHAT IS A DIHYBRID CROSS?A dihybrid cross is a cross between two individuals that are both heterozygous for the involved genes.
According to this question, if two individuals that are heterozygous for two genes are crossed i.e. BbCc × BbCc, the following offsprings are produced:
B_C_ = 9B_cc = 3bbC_ = 3bbcc = 1Therefore, in a dihybrid cross, if two heterozygotes (for both genes) are crossed, the expected phenotypic ratios is as follows:
dominant for both traits: 9dominant for the first trait and recessive for the second: 3recessive for the first trait and dominant for the second; 3recessive for both traits: 1Learn more about dihybrid cross at: https://brainly.com/question/1185199
Most digestion and absorption of food occurs in the
Answers
The given statement, "Most digestion and absorption of food occurs in the" is incomplete and doesn't provide any clue about the required answer. Therefore, it is essential to know the full statement to provide a valid answer to this question.
The process of breaking down food into smaller components (nutrients) in our digestive system so that the body can absorb them for energy production and other metabolic processes is called digestion. The digestive process can be divided into two types: mechanical digestion and chemical digestion.
Mechanical digestion involves the physical breakdown of food into smaller particles through chewing and grinding. On the other hand, chemical digestion refers to the breakdown of food into smaller nutrients with the help of digestive enzymes and other secretions from the gastrointestinal tract.
After the breakdown of food, the process of absorption takes place. Absorption is the process in which the nutrients, minerals, and other components of food are absorbed by the small intestine and transported to other parts of the body. The small intestine is a critical part of the digestive system responsible for nutrient absorption, while the large intestine absorbs water and minerals.
Nutrients from food are absorbed by the small intestine into the bloodstream and then transported to cells throughout the body for energy production, tissue repair, and other metabolic processes.
In conclusion, the process of digestion and absorption of food is crucial for the proper functioning of the body. The majority of digestion and absorption of food occurs in the small intestine.
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Tabulate five difference between liquid solid and gas
Answers
Answer:
Most common differences might be long but it is what it is
Explanation:
Respiration occurs when oxygen enters the lungs and carbon dioxide is
exhaled.
True
Or
False????
Answers
when the endangered species act was established in 1973 the endangered and threatened species list included 78 u.s. species. in 2018 that number had risen to . question 2 options: 356 507 770 1000 1661
Answers
In 2018, the number of endangered and threatened species listed in the United States under the Endangered Species Act of 1973 was 507.
Endangered species are those species of plants, animals, and other organisms that are at risk of extinction due to declining populations and threats to their habitats. The Endangered Species Act of 1973 in the United States provides a framework for the protection and recovery of these species. As of 2018, there were 507 species listed as endangered or threatened in the US. Human activities such as habitat destruction, introduction of non-native species, and climate change are some of the major factors contributing to the decline of these species. It is important to take action to protect and conserve these species as they play an important role in maintaining the balance of ecosystems and preserving biodiversity.
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The Moon goes through many phases each month. These phase-changes provide evidence that the Moon revolves around Earth, similar to how the planets orbit the Sun. This constant motion is mainly controlled by-
Answers
The moon rotates around Earth, this continuous motion is mainly controlled by the gravitational attraction between the Earth-Moon.
What is gravitational force?It is the force of gravity that pulls objects having mass towards each other, due to this force our body keeps on the ground.
The gravitational attraction keeps them in orbit inside the Earth–Moon system approximately the common center of mass, a point approximately, 4670 km from the center of the Earth.
Therefore, due to gravitational attraction, constant motion is mainly controlled.
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why a person with blood group AB are referred to a universal donors
Answers
Study the image, which describes how rapid changes in weather conditions occur.
How rapid changes in weather conditions occur. Arrow labeled Direction of frontal movement points right toward Cold front map symbol. Arrow labeled Rising warm air in front of cold front points from cold front to sky. Also labeled are: Development of clouds because of upward movement of warm air, and Advancing cold air behind cold front.
Based on the arrows, what does the image represent?
Air masses are barely moving.
Air masses are colliding with each other.
Jet streams are forming in the upper atmosphere.
Weather conditions are remaining steady and unchanged.
Answers
The image represents air masses colliding with each other, leading to rapid changes in weather conditions.
The image represents the process of rapid changes in weather conditions occurring. The arrows in the image indicate various elements and phenomena related to these changes.
At the top, the final answer is that the image represents "Air masses are colliding with each other."
1. The arrow labeled "Direction of frontal movement" points right toward the "Cold front" map symbol. This indicates the movement of a cold front.
2. The arrow labeled "Rising warm air in front of cold front" points from the cold front upward into the sky. This signifies the upward movement of warm air.
3. The image also shows the development of clouds due to the upward movement of warm air. This indicates the presence of moisture in the atmosphere.
4. Finally, the image depicts advancing cold air behind the cold front, indicated by an arrow. This cold air is moving in the direction of the warm air.
Putting all these elements together, we can conclude that the image represents air masses colliding with each other. The cold front is advancing and pushing against the warm air, leading to the formation of clouds and changes in weather conditions. This collision between air masses often results in rapid changes in weather patterns, such as storms, rain, or temperature fluctuations.
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Biochemical engineers have designed a lamp that uses algae to create light. These algae are able to glow in the dark. How could this example of biotechnology help the environmental quality of the planet?
Answers
Bioluminescence is a process done by living organisms that produce light without generating heat.
Using algae to generate bioluminescence can help generate light and at the same time remove carbon dioxide from the air (a gas that exacerbates the greenhouse effect).
Biotechnology can help the planet to produce light without polluting the environment and reducing the concentration of carbon dioxide in the air.
Remember: algae carry out photosynthesis and so they extract carbon dioxide from the air.
Answer: "As the organisms inside photosynthesize, they will remove carbon from the air. "
During DNA replication how is the leading strand built
Answers
Answer:
B. Continuously, as nucleotides are added to the 3' end
Explanation:
The leading strand is synthesized by adding nucleotides to the 3' end of the growing strand, and the lagging strand is synthesized by adding nucleotides to the 5' end.
The lagging strand is synthesized continuously, whereas the leading strand is synthesized in short fragments that are ultimately stitched together.
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♡
The leading strand in DNA replication is synthesized continuously by DNA polymerase in the 5' to 3' direction from the origin of replication.
Explanation:During DNA replication, the leading strand is built continuously in the 5' to 3' direction by DNA polymerase. DNA polymerase adds deoxyribonucleotide (dNTP) to the 3' end of the DNA. The replication begins at a specific point in the DNA molecule called the origin of replication. Here, the DNA helix is separated by the enzyme helicase, which forms a structure known as the replication fork. In this structure, on the leading strand, the DNA polymerase is moving in the same direction as the replication fork, allowing it to read the original DNA strand and synthesize the new strand continuously.
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Given the gene sequence GGACCGTCGATCTTC, which of the following choices would
represent an inversion mutation?
A. CCACCGTCGATCTTC
B. GGACCG TCGATC TTC
C. GGACCGTCGATCCTT
D. GGAC TCGATC TTC
Answers
Answer:
I would go with A maybe,am not really sure though.
The substances that are present after any chemical reaction are called what?
Answers
The substance that are present after any chemical
reaction are called as products
The portion of the membrane system in eukaryotic cells that is responsible for the making lipids and breaking down toxic substances in the
Answers
Answer:
The endoplasmic reticulum
Explanation:
In pea plants, the allele for tallness is dominant (T) to the allele for shortness (t). A pea plant that is tall (TT) is mated with another pea plant that is short (tt). Which of the following is correct about their offspring? (Do a Punnett square if needed!) *
1. Half (50%) of the offspring will have the dominant allele
2. All of the offspring will be short
3. All of the offspring will be tall
4. Half (50%) of the offspring will carry the recessive allele
Answers
The amount of starch formation represented by the arrow can be increased in the presence of which condition?
Answers
During light condition, starch formation increases.
The amount of starch formation represented by the arrow can be increased in the presence of light because in the chloroplast of leaves, starch is synthesized during the day and degraded during the night.
What is starch?Starch is a polysaccharides which is made up of a long chain of glucose. The sub units that for starch are glucose atom and we know that glucose is produced in the process of photosynthesis so we can conclude that during light condition, starch formation increases.
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Which describes the effect of this environmental change?
Answers
The effect of this environmental change is A, decreased genetic variation.
How does environmental change occur?Environmental change can have a number of effects on genetic variation. One of the most common effects is a decrease in genetic variation. This can happen when a population is divided into smaller groups, each of which is exposed to different environmental conditions.
This can lead to the selection of different genes in each group, and over time, the groups can become genetically distinct. Genetic drift is a random change in the frequency of genes in a population. It can happen when a population is small, and it can lead to a decrease in genetic variation.
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Complete question:
Which describes the effect of this environmental change? decreased genetic variation increased genetic variation genetic drift gene flow
What percentage, on average, of living plant biomass on land is consumed alive by herbivores?a. More than 75% b. 50% c. 25% d. Less than 10%
Answers
Answer: D. Less than 10%
Explanation:
Herbivores consume no more than 10% of living plant biomass.
Hope this helps!
Most articles pass right through the atom, this means that most of the atom is
Answers
Most articles pass right through the atom, this means that most of the atom is an empty space.
What is an atom?An atom is described as a particle that consists of a nucleus of protons and neutrons surrounded by a cloud of electrons.
Protons and neutrons make up the core nucleus of an atom, which is encircled by an electron cloud. In relation to the size of the atom as a whole, the nucleus is exceedingly small.
As a result, the electrons surrounding the nucleus are the primary target of interactions when particles or even light pass through an atom. The majority of the atom's remaining space, which includes the nucleus, is vacant.
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6. During the 1990s, natives of tropical islands began collecting wild turtles to sell in the United States as pets. One of these turtle species, a voracious carnivore that feeds on shrimp and snails, was especially popular. Recently, the U. S. government banned the import of these turtles as pets. However, pet owners have released large numbers of unwanted turtles into warm natural waters of the Gulf of Mexico.
Predict two possible consequences of the release of these turtles into Gulf waters, including the effect on native turtle species. Justify your response.
Answers
Two possible consequences of the release of these turtles into Gulf waters, including the effect on native turtle species are
Competition with native turtle speciesAlteration of ecosystem dynamicsWhat are possible consequences of the release of these turtles into Gulf waters?An invasive turtle species poses direct competition with native turtles within Gulf of Mexico, resulting in possible shrinkage in population sizes for the latter group. Resource scarcity driven primarily by competition over access to nests, habitats and food sources can render natives less effective at these activities compared to their new rivals.
Furthermore, identifying underlying consequences triggered by invasive species' potential alteration of ecosystem dynamics (eg: substantial loss or balanced gain) remains crucial for further consideration. The issue of climate change represents an imminent danger that threatens the well-being of our planet. Swift action from all corners of society is required, including private citizens, companies, and governing bodies across national borders.
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An organism has 18 chromosomes in its body cells. Its sex cells have 9 chromosomes.
Which statement correctly explains this?
Answers
For an organism that has 18 chromosomes in its body cells and its sex cells have 9 chromosomes, the correct statement is C, Its sex cells are haploid and a result of meiosis.
What are haploids?Haploid cells have half the number of chromosomes as diploid cells. Mitosis is a type of cell division that produces two identical daughter cells. Meiosis is a type of cell division that produces four daughter cells, each with half the number of chromosomes as the parent cell.
In the organism described, the body cells are diploid (18 chromosomes) and the sex cells are haploid (9 chromosomes). This is because the sex cells are produced by meiosis, which is a type of cell division that reduces the number of chromosomes by half. This allows the sex cells to combine with each other to form a new diploid cell, which is the beginning of a new organism.
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Complete question:
An organism has 18 chromosomes in its body cells. Its sex cells have 9 chromosomes.
Which statement correctly explains this?
Its body cells are haploid and a result of mitosis.
Its sex cells are diploid and a result of mitosis.
Its sex cells are haploid and a result of meiosis.
Its body cells are diploid and a result of meiosis.
What are the two factors that influence gravity? 1)Speed and distance. 2)Color and shape 3)Neight and shape. 4) Nass and distance
Answers
differentiate between transpiration, exaporation and evapotranspiration
Answers
Transpiration refers to the process of water loss through the stomata of plants, evaporation is the process of a liquid turning into a gas, while evapotranspiration is the combination of both transpiration and evaporation and refers to the total water loss from a surface.
What is Transpiration?Transpiration is the process by which water is lost from a plant through small pores called stomata. This water loss can occur through evaporation from the surface of the leaves or stems and serves to regulate the temperature of the plant and maintain water balance.
Transpiration also plays a crucial role in the movement of water and nutrients from the roots to the leaves. It is an important aspect of the water cycle and helps to redistribute water and minerals throughout the plant.
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7. Red-drums are a fish native to the Texas Coastal Eco-regions. They are a
dark red color on the back, which fades into white on the belly. The red
drum has a characteristic eyespot near the tail and is somewhat
streamlined. It can be inferred that the black spot on their tail -
Answers
The back of a red drum is a dark red tint, and the belly is white. The red drum is somewhat sleek and has a distinctive eyespot close to the tail. Red drum that are three years old normally weigh 6–8 lbs.
A red drum fish consumes what kind of food?Seagrass (primary producer) (primary producer) the mollusk (primary consumer) Crab, blue (secondary consumer) - Red Drum, a tertiary or third-level consumer - Tiger shark, an apex predator and quaternary level consumer. Image credit.
What distinguishes red drumfish from black drumfish?For the first six years, redfish reach milestones in length and weight a year earlier than black drum because to their rapid growth. Although both of these species typically weigh between 5 and 30 pounds, black drum eventually outgrow redfish, growing to a maximum weight of about 100 pounds as opposed to 90 pounds.
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1. Fernando is looking at a cell under a microscope, and he thinks it is a plant cell. Which of the following questions could he ask to determine whether or not it is a plant cell?
*
a. Does the cell have organelles that make proteins?
b. Does the cell have a gel-like substance that suspends the organelles?
c. Does the cell have a waxy outer layering that prevents the cell from bursting?
d. Does the cell have an organelle that contains genetic information and tells the cell how to behave?
Answers
Answer: D
Explanation:
Bc
During a frog's life, it makes a transformation from its "baby form" (an aquatic tadpole) to its adult form, which looks very different. Once it is in its adult form, it can change size by adding more cells. The characteristic of life that most closely relates to this is
All living things display organization
All living things grow and develop
All living things reproduce All living things are made of cells
All living things reproduce All living things are made of cells
Answers
Answer:
All living things grow and develop
1. What are the three components of a nucleotide (Remember only the nitrogen bases
change between nucleotides). Draw all four nucleotides below:
Answers
Answer:
adenine, cytosine, guanine or thymine
Explanation:
Nucleotides are made up of 3 parts. The first is a distinct nitrogenous base, which is adenine, cytosine, guanine or thymine. In RNA, thymine is replaced by uracil. These nitrogenous bases are either purines or pyrimidines.
How do big rocks break down into smaller rocks?
Answers
Answer:
u crush them
I'm jk don't take this seriously
a) Look back at your hypothesis from question 2. Could this hypothesis become a theory if
you repeated your experiment 100 different times and got the same results? Can a theory be
I
created by just one person? (2 points)
Answers
A theory can be created by just one person, but it requires extensive research, experimentation, and peer review to become widely accepted. A theory is a well-established explanation that has been repeatedly confirmed through observation and experimentation, and it must be supported by a large body of evidence. Therefore, a theory cannot be created by just one person without extensive research and experimentation, and without undergoing peer review to ensure its validity.
Animal and plant organs are organized into organ systems, thus resembling the way you organize
Answers
nimal and plants organs are organized into organ systems,much like you organize your homework in. ... The animals in which cells are organized into structural and functional units ... You organize files by storing
Does a prokaryote have a nucleus
Answers
Prokaryotes are organisms whose cells lack a nucleus and other organelles. ... Prokaryotic cells are surrounded by a plasma membrane, but they have no internal membrane-bound organelles within their cytoplasm.
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