PLS HELP!! brainliest + extra points! it's easy but i didn't study tbh:)

From a plate to a slant, a small amount of e. coli culture is transferred via a loop. The slant tube has now been inoculated.

Inoculating bacteria into either liquid or solid media is possible. The E. Coli culture is then spread on an agar plate or mixed into liquid media or broth using a sterile inoculation loop or pipette. After that, bacteria are grown in the media by incubating it. It is utilized in cell culture and other microbiological procedures.

The act of inoculation involves moving a little quantity of bacterial culture from a plate to a slant using a loop. This step is necessary to get the bacteria culture into the slant tube, which will be used for growth and subsequent investigation.

A little bit of the bacteria culture is removed off the plate using the loop, and it is then moved to the slant tube. In the proper environments, this enables the bacteria culture to develop and proliferate in the slant tube.

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The complete question is:

A loop is used to transfer a small amount of e. coli culture from a plate to a slant. the slant tube has now been

1) inoculated

2) incubated

3) cultured

4) sterilized

Poas volcano is above the frost line, and temperatures below freezing are possible. Nearly constant winds and saturating humidity contribute to biting cold at the rim.

Ovian moons has been the four largest satellites like the moon of the Jupiter ie the Lo, Europa, Ganymede, Callisto and were first seen by the galileo. They are the amiugly the largest moons with radii larger than the dwarf planet.

Lo has more than 400 active volcanoes and dotted more than 100 mountains and has an extremely thin atmosphere made up of sulfur dioxide.

Therefore, Poas volcano is above the frost line, and temperatures below freezing are possible. Nearly constant winds and saturating humidity contribute to biting cold at the rim.

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Answer:

A thumb that can be placed opposite the fingers of the same hand.

Explanation:

"Opposable thumbs allow the digits to grasp and handle objects and are characteristic of primates."

Answer:

0.1m/s

Explanation:

Speed can be calculated using the formula;

Speed (m/s) = distance (m) ÷ time (s)

According to the information provided in this question, Alejandro's car travels 50cm in 5seconds i.e. the distance traveled is 50cm and the time is 5s.

However, the question requires the distance to be in metres (m). We, therefore, need to convert 50cm to m by dividing by 100.

100cm = 1m

50cm = 50/100

= 0.5metres.

Speed = 0.5/5

Speed = 0.1m/s.

The car travels as fast as 0.1m/s.

Answer:

eukaryotic cells have a nucleus whereas prokaryotic cells do not

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Answer:

Salinity also affects chemical conditions within the estuary, particularly levels of dissolved oxygen in the water. The amount of oxygen that can dissolve in water, or solubility, decreases as salinity increases

Explanation:

During meiosis II the two alleles of a gene separate and during Anaphase this separation occurs. Thus the correct answer is Meiosis II, Anaphase

The first meiosis involves cell duplication. As a result, the two daughter cells have the same number of alleles as the mother cell.

The two daughter cells split into four gametes during meiosis II.

There is no cell duplication in prophase II. There are still the same amount of alleles.

Gene-containing chromatids are arranged in a line in the center of the cell during metaphase II, after which spindles attach to each of the chromatids.

These chromatids split during anaphase II, resulting in the separation of any gene's two alleles.

Cell membranes are generated during cytokinesis and telophase II.

The complete question is:

During which part of meiosis (meiosis I or meiosis II) do the two alleles of a gene separate? During which phase does the separation occur? State your answer as meiosis I or meiosis II followed by a comma and the name of the phase (for example, if your answer is meiosis II and metaphase, enter meiosis II, metaphase).

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Answer:

because some chemical reactions release gases which may be odourless or may have smell, in order to identify it it is necessary to have a good sense of smell.

The invaginations of the inner mitochondrial membrane, also known as cristae, are related to mitochondrial function in several ways.

Cristae increase the surface area of the inner mitochondrial membrane, allowing for more proteins and enzymes to be embedded and thus increasing the efficiency of oxidative phosphorylation, the process by which ATP is produced in mitochondria. Cristae also contain specialized proteins involved in electron transport, which play a critical role in generating the proton motive force needed to drive ATP synthesis.

Additionally, the unique shape and arrangement of cristae help facilitate the efficient exchange of metabolites between the matrix and intermembrane space, ensuring that the necessary substrates are available for mitochondrial metabolism. Overall, the structure of cristae is essential for mitochondrial function and efficient energy production.

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The most significant geological event of the Mesozoic era was the break up of a supercontinent. The correct option is D.

The most significant geologic event of the Mesozoic era was the breakup of the supercontinent Pangaea into smaller landmasses, which began in the Late Triassic period and continued throughout the Jurassic and Cretaceous periods.

This led to the formation of the modern-day continents and oceans, as well as significant changes in climate, sea levels, and biotic diversity. The breakup of Pangaea also resulted in the formation of numerous mountain ranges, including the Rockies, Andes, and Alps, as well as the opening of the Atlantic Ocean.

These geologic events had a profound impact on the evolution of life on Earth, including the diversification of dinosaurs and the rise of mammals.

Therefore, the correct option is D.

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The correct sequence of events in cellular respiration is option a: glycolysis, citric acid cycle, electron transport chain.

During cellular respiration, glucose is broken down to produce energy in the form of ATP. The process starts with glycolysis, which occurs in the cytoplasm and involves the breakdown of glucose into pyruvate molecules. Glycolysis generates a small amount of ATP and NADH.

The pyruvate molecules produced in glycolysis enter the mitochondria, where the citric acid cycle, also known as the Krebs cycle, takes place. In this cycle, the pyruvate is further broken down, releasing carbon dioxide and generating NADH and FADH2 as electron carriers. The citric acid cycle also produces a small amount of ATP.

The electron carriers NADH and FADH2 then participate in the electron transport chain, which is located in the inner membrane of the mitochondria. In the electron transport chain, the electrons from NADH and FADH2 are transferred through a series of protein complexes, creating a flow of electrons that drives the synthesis of ATP. This process is known as oxidative phosphorylation.

Therefore, the correct sequence of events in cellular respiration is glycolysis, citric acid cycle, and electron transport chain, as stated in option a.

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Question

Which of the following is the correct sequence of events in cellular respiration?

a. glycolysis, citric acid cycle, electron transport chain

b. glycolysis, preparatory reaction, citric acid cycle, electron transport chain

c. glycolysis, electron transport chain, preparatory reaction

d. citric acid cycle, glycolysis, electron transport chain, preparatory reaction

e. citric acid cycle, electron transport, glycolysis, preparatory reaction

Answer:

D. improve fertility

Explanation:

A garden supply company has an advertisement selling beneficial bacteria. They claim that the bacteria will help gardeners grow better gardens because of better soil.

This claim is simply based on the premise or fact that some bacterias can improve fertility of the soil.

Some species of bacterias are living microorganisms that are capable of decomposing organic matter into nitrogen, carbon and other nutrients, which are then released into the soil in a plant available form when in excess and this cycle continues with reproduction of new bacterias.

Some examples of these bacterias are Klebsiella, Anabaenopsis, Beijerinckia, Azotobacter, Clostridium, Anabaena, Nostoc, Bacillus etc.

The tubes that connect each kidney to the urinary bladder are known as the ureters.

The ureters are long, muscular tubes that transport urine from the kidneys to the urinary bladder. There is one ureter connected to each kidney. The ureters play a vital role in the urinary system by carrying urine, which is formed in the kidneys through the filtration of blood, down to the urinary bladder for temporary storage. The walls of the ureters have smooth muscle fibers that contract in a coordinated manner, creating peristaltic waves to propel urine from the kidneys to the bladder. The ureters have one-way valves at their junctions with the bladder, preventing the backward flow of urine and ensuring a unidirectional flow.

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The statement b. Figure A represents Punctuated Equilibrium while Figure B represents Gradualism is true based upon the diagram.

Punctuated Equilibrium is a process that leads to sudden changes in the phenotype in order to fit environmental conditions, while Gradualism can be defined as a gradually progressive process of change of traits in a species.

Therefore, with this data, we can see that  Punctuated Equilibrium and Gradualism are distinct evolutionary adaptive phenomena in terms of how the phenotypic change is produced in the population and or species.

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The difference between a deoxyribonucleotide and a di-deoxyribonucleotide is option B: a dideoxynucleotide is missing a 3'- hydroxyl group on its sugar.

Deoxyribonucleotides are referred to as such because they lack an oxygen on the second carbon but do possess a hydroxyl group (OH) at position 3' on the ribose sugar. In contrast, a di-deoxyribonucleotide will only have a hydrogen (H) at position 3'. It is referred to as a di-deoxy because it is deficient in two oxygens. Therefore, option B marks the appropriate choice.

Dideoxynucleotides, employed in the Sanger technique for DNA sequencing, are chain-elongating inhibitors of DNA polymerase. Because there are no hydroxyl groups at the 2' and 3' locations of the ribose, they are also known as 2',3'. A target DNA segment is amplified using the Sanger method so that the DNA sequence can be precisely determined.

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Answer:

Explanation:

Yes , Trilobite Flexicalymene And coral Favosites can be found in the same rock

Answer:

Abiotic factors - due to environmental conditions like earth quakes, drought, volcanic eruption, hurricanes etc.

Biotic factors - due to animals interacting with the environment like grazing animals on forest lands will lead to erosion of top soil, invasive species multiplying and destroying native flora and fauna.

Pollution and deforestation cause by human activity.

Explanation:

Answer: Batteries, Lead Pencils and Electrical wires

Explanation: Lithium (Li) atomic no.3 is present in batteries. Lead pencils are made of graphite which is a form of carbon(C) atomic no.6. Electrical wires are made up of copper (Cu) atomic no.29

The three options that show evidence of common ancestry are:

B. The embryos of a snake and a chicken are very similar.

C. The wings of a bald eagle and the wings of a moth perform similar functions.

D. The DNA of chimpanzees and humans is 98% the same.

Ancestry refers to one's familial or genetic origins and lineage. It is the concept of tracing and understanding the origin and development of a particular family, individual, or group, as well as the cultural and biological heritage that they inherit from their ancestors.

The term ancestry is commonly used in the fields of genealogy, biology, anthropology, and history to study and understand human and animal evolution, migration patternsand population genetics.

Therefore, The three options are B, C and D

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During inhalation, the diaphragm contracts. As it contracts, the diaphragm moves downward, increasing the volume within the thoracic cavity. Due to this increased volume in the thoracic cavity, a negative pressure gradient is generated which causes air to flow from the environment into the lungs. The lungs expand as the alveoli of the lungs fill with air.

During exhalation, the diaphragm relaxes and rises into the thoracic cavity, decreasing the volume in the thoracic cavity. The decreased volume in the thoracic cavity results in an increased pressure which causes air to flow from the lungs out to the environment. At the same time, the lungs are elastic and act to help air flow out as the retract after being expanded.

Answer:

D I'm pretty sure

Explanation:

Answer:

oxygen is moved across a membrane O, cause the others are untrue.

Answer:The white forelock trait is an example of a dominant genetic trait, which means that if an individual has two copies of the dominant allele, they will exhibit the phenotype associated with the trait. In this case, the presence of a white forelock is the dominant trait.

If an individual is homozygous dominant for the white forelock trait, meaning that they have two copies of the dominant allele (WW), then all of their children will inherit at least one copy of the dominant allele. Therefore, all of their children will exhibit the white forelock trait phenotype.

Specifically, if this individual has children with someone who is homozygous recessive for the trait (ww), then all of their offspring will be heterozygous for the trait (Ww) and will also exhibit the white forelock phenotype. If this individual has children with someone who is heterozygous for the trait (Ww), then each child will have a 50% chance of inheriting the dominant allele and exhibiting the white forelock phenotype, and a 50% chance of inheriting the recessive allele and not exhibiting the trait.

Explanation:

The hormones involved in the short-term mechanism control of blood pressure are ANP, Vasopressin and Renin.

ANP (Atrial Natriuretic Peptide): ANP is released by the atria of the heart in response to increased blood volume or stretching of the atrial walls. It acts to promote vasodilation, increase urine production, and decrease sodium reabsorption in the kidneys, thereby reducing blood pressure.

Vasopressin (also known as Antidiuretic Hormone or ADH): Vasopressin is produced in the hypothalamus and released by the posterior pituitary gland. It acts to constrict blood vessels (vasoconstriction) and promote water reabsorption in the kidneys, both of which increase blood pressure.

Renin is an enzyme produced and released by specialized cells in the kidneys called juxtaglomerular cells. It plays a crucial role in the renin-angiotensin-aldosterone system (RAAS), which regulates blood pressure and fluid balance. Renin acts on angiotensinogen (a protein produced in the liver) to convert it into angiotensin I, which is further converted to angiotensin II. Angiotensin II causes vasoconstriction and stimulates the release of aldosterone, a hormone that promotes sodium and water retention, thereby increasing blood pressure.

The hormones not involved in the short-term mechanism control of blood pressure are:

DNP (Dinitrophenol): DNP is not a hormone involved in blood pressure regulation. It is a chemical compound that is sometimes used as a weight loss agent but has no direct role in the short-term control of blood pressure.

Angiotensinogen: Angiotensinogen is a protein produced in the liver that serves as a precursor for the production of angiotensin I. While it is part of the renin-angiotensin-aldosterone system involved in long-term blood pressure regulation, it is not directly involved in the short-term mechanism control of blood pressure.

Therefore, the hormones involved in the short-term mechanism control of blood pressure are ANP, Vasopressin (ADH), and Renin.

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Answer:

Nucleus

Explanation:

the nucleus of an atom consist of protons and neutrons,the electrons is located at the electron shells of an atom