Answer:
From 1945–1955 the development of penicillin, which is produced by a fungus, along with streptomycin, chloramphenicol, and tetracycline, which are produced by soil bacteria, ushered in the antibiotic age.
Explanation:
Hope it helps you..!
What is created by the flow of electric current?
A battery
An electric field
A magnetic field
A resistor
A magnetic field is created by the flow of an electric current.
the electron transport chain consists of a series of membrane-bound carriers that shuttle protons and electrons to nadh. true or false?
Answer:
ture
Explanation:
The statement "the electron transport chain consists of a series of membrane-bound carriers that shuttle protons and electrons to NADH" is absolutely false.
What is the Electron transport chain?The electron transport chain may be defined as a sequence of four protein complexes that significantly perform a couple of redox reactions in order to construct an electrochemical gradient that directs to the formation of ATP in an overall system that is named as oxidative phosphorylation.
The electron transport chain typically includes the series of electron transporters that are generally embedded in the inner membrane of mitochondria in order to shuttle down the electrons only from NADH and FADH2 to molecular oxygen.
While the given statement reveals that electrons and protons both shuttle to NADH but FADH2 is also involved.
Therefore, the statement which is given about the electron transport chain is definitely false.
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identify the region of the sphenoid bone in contact with the pituitary gland.
Answer:
The sella turcica is a depression in the central region of the sphenoid bone. It houses the pituitary gland.
what are the functions of the kidney
which is a flap of tissue that folds down to close off the entrance to the larynx and trachea when you swallow?
Spelling and vocabulary words:
Organisms
Reproduction
Structure
Substances
Unicellular
Osmosis
Division
Photosynthesis
Organ
Function
Membrane
Cytoplasm
Nucleus
Chloroplast
Chlorophyll
Can y'all help me find the definitions of these words, it'd for my science exam and I'm revising. I can't search them up rn cuz I have to go to bed and I don't wanna get in trouble and I really wanna get this done.
Thxx will provide big points and brainiest for first answer
IMPORTANCE OF TRANSPORT MECHANISMS IN CELLULAR PROCESSES.
Explanation:
Small substances constantly pass through plasma membranes. Active transport maintains concentrations of ions and other substances needed by living cells in the face of these passive movements. Much of a cell's supply of metabolic energy may be spent maintaining these processes.
Interpreto la imagen: 1. ¿Qué sensaciones te transmite la
fotografía? 2. ¿en dónde se encuentra el fósil del ser vivo
que se observa en la fotografía? 3. ¿A qué reino de la
naturaleza pertenecía el ser vivo de la fotografía? ¿Por qué?
4. ¿Cómo explicarías a una persona que es la evolución a
partir de esta fotografía? 5. La fotografía muestra un fósil
de cocodrilo de la especie C.Robustus, evidencia
paleontológica que demuestra la existencia de estos
animales desde el triásico y el jurásico en el planeta tierra.
¿Por qué crees que, a una institución como el laboratorio
de Ciencias de la Tierra de Lyon, en Francia, le puede
interesar estudiar un espécimen como este?.
Answer:
what image
Explanation:
drag each label into the appropriate category to designate whether the given item describes elements of gray or white matter of the spinal cord.
In regards to the composition of the spinal cord, the grey matter is the centermost substance, whilst white matter is located towards the peripherals.
Though I could not locate the labels and categories online in order to properly classify each one, I can provide a general overview of the subject to aid in your understanding and ability to complete the project.
The spinal cord acts as a path through which billions of signals from the brain travel to reach the rest of the body. This pathway is occupied by grey and white matter, which are the representation of the billions of neurons that make up the central nervous system.
Grey matter is located towards the center of the spinal cord and is often described to be in the shape of a butterfly. Grey matter is the accumulation of nerve cell bodies and unmyelinated axons. In contrast, white matter makes up the surrounding area to that of grey matter and corresponds to the myelinated axons of various nerve cells. The white coloration of the white matter is due to the myelin itself.
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Is the pelvic girdle part of the axial or appendicular skeletal system?
Answer:
b. Appendicular
Explanation:
Answer:
B
Explanation:
Plato Anatomy 2.3 content quiz
Meaning of:
1. Plant Stranglers.
2. Ammonification
3.Nitrification
Answer:
1. Plant strangers; named for their pattern of growth upon host trees, which often results in the host's death. example includes strangers fig
2. Ammonification refers to chemical reactions in which amino groups (NH2) associated with organic forms of nitrogen are converted into ammonia (NH3) or ammonium (NH4+).
3. Nitrification is the step in the nitrogen cycle that links the oxidation of ammonia (produced from the degradation of organic matter) to the loss of fixed nitrogen in the form of dinitrogen gas.
Explanation:
Sorry some of the answer are from internet but please mark brainliest
In what stage do cells spend most of their life
Answer:
the interphase stage
info at
https://www.genome.gov/genetics-glossary/Cell-Cycle#:~:text=A%20cell%20spends%20most%20of,mitosis%2C%20and%20completes%20its%20division.
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which famous composition duo was known for creating many influential operettas?
The famous composition duo that existed in history and work to create an operettas that is very famous are Gilbert and Sullivan.
Operetta can be regarded as a form of theatre as well as a genre of light opera. This concept entails spoken dialogue as well as songsGilbert and Sullivan were men that work hand in hand to create influential operettas in history. They were a famous Victorian-era theatrical that engaged in partnership of dramatist , they work hand in hand to achieve a great fit around 1830s.Therefore, Gilbert and Sullivan are great men in operetta world
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Carbon, Hydrogen, and Chlorine atoms combine chemically. What best describes this
combination that is the result?
Atom
Compound
Element
Consideting the definition of compound, the correct answer is second option: Carbon, hydrogen and chlorine atoms combine chemically, forming compounds.
A compound is any substance formed by the union of two or more types of chemical elements, linked together by chemical bonds.
In other words, A chemical compound is the substance that results from the combination of two or more different chemical elements linked under a certain arrangement and in certain proportions.
Each compound has a chemical name (which responds to certain nomenclature rules) and a formula that indicates the elements it is composed of and the number of atoms each contains.
Then, the correct answer is second option: Carbon, hydrogen and chlorine atoms combine chemically, forming compounds.
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https://brainly.com/question/6242391?referrer=searchResultshttps://brainly.com/question/14782984?referrer=searchResultswhat is the role of the enzyme aromatase in sexual differentiation in reptiles?
Answer:
Aromatase helps to convert sex steroids, a group of hormones that influence sex development and reproduction, from male sex hormones (androgens) to female sex hormones (estrogens)
Explanation:
hope it helps you
Frank is putting money into a savings account. He starts with $750 in the savings account, and each week he adds $40.
Let S represent the total amount of money in the savings account (in dollars), and let W represent the number of weeks Frank has been adding money. Write an equation relating S to W. Then use this equation to find the total amount of money in the savings account after 17 weeks.
Answer:
750+(40xW)=S
750+(40x17)=----------
Explanation:
How is atmospheric carbon in the form of CO2 converted into a molecule that
is usable to all organisms?
A. By combustion of fossil fuels
B. By the decomposition of dead and decaying matter
C. By production of ATP through cell respiration
D. By the making of glucose through photosynthesis
WILL MARK BRAINLIEST
Answer:
D. By the making of glucose through photosynthesis
Explanation:
Photosynthesis is a chemical reaction that results in glucose. One of the reactants is CO2. So, the plants take in CO2, water, and sunlight. This produces oxygen and glucose. This is part of the carbon cycle and is the way that CO2 becomes usable for consumers.
Does quartzite occur naturally
Which of the following is a common characteristic of prokaryotic cells? Select all that apply.
A. plasma membrane
B. nucleus
C. flagella
D. cell wall
Nucleus is an exception in a prokaryotic cell. Thus, option A, C and D are correct.
What are the characteristics of a prokaryotes?Prokaryotes are microscopic and primitive cells. Their nucleus is not well developed.
Prokaryotes lack cell organelles like mitochondria, endoplasmic reticulum, Golgi body etc in their cell structure.
Prokaryotes are simple in assembly and are therefore unicellular. A single cell performs all the functions in the body.
Prokaryotes have single chromosome present in their structure. Their DNA is found in the cytoplasm.
Prokaryotes have cilia and flagella for locomotion.
Prokaryotic organisms are found extensively everywhere on earth. They have unique ability to survive in the harsh environments.
Prokaryotes are beneficial in many ways:
Carry out nitrogen fixation.Important for human gut for the absorption of vitamin B12.Helpful in fermentation process.Important in bioremediationTherefore, prokaryotes are important in many ways to the ecosystem.
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pls help 4-7 35 point
Answer:
sorry i havent learn about this yet
How can detritivores be beneficial to the environment?
O A) allow predation to occur
O B) rid waste and dead matter
O C) provide food for autotrophs
O D) facilitate photosynthesis in plants
Answer:
B
Explanation:
How can detritivores be beneficial to the environment?
O A) allow predation to occur
O B) rid waste and dead matter
O C) provide food for autotrophs
O D) facilitate photosynthesis in plants
ANSWER:O A) allow predation to occur
O A) allow predation to occurO B) rid waste and dead matter
O C) provide food for autotrophs.
O D) facilitate photosynthesis in plants
__________________CARRY ON LEARNING
CAN YOU BRAINLEST ME PLEASE
erythropoietin is a hormone produced by the _______________ to increase the rate of production and maturation of erythrocyte progenitor and erythroblast cells.
Answer: Kidneys
Explanation:
Both the kidneys and the liver produce erythropoietin. If only one answer is allowed, I would choose kidney because it produces nearly 85 percent of it.
promoters of many genes have regions that are rich in adenines and thymines. what is the most likely reason for this?
Answer:
Many promoters of a hypothetical conserved gene have mostly adenines and thymines. What is the most likely reason for this high proportion of adenines and thymines? This is the region for separating template and non-template strands, and A-T base pairs are easier to separate than G-C base pairs.
Explanation:
Which type of fossil can help is understand an organisms activity during its time?
which type of biomolecule is a prominent part of animal tissue that functions in insulation to help animals conserve heat?
Answer:
Protein
Explanation:
protein is one of the 4 biomolecules that involve animal tissue functioning to help animals conserve the heat.
When a biological vector is used, which process is used to ensure there are large amounts of DNA?
cloning
electrophoresis
genetic engineering
gene isolation
Answer:
*CLONING
Explanation:
it makes the most sense
how do I write the equation P^2 = kA^3, so that I'm solving for the variable K?
Answer:
k = (P^2)/(A^3)
Explanation:
Step 1: Flip the equation.
[tex]kA^3 = P^2[/tex]Step 2: Divide both sides by A^3.
[tex]\frac{kA^3}{A^3} = \frac{P^2}{A^3}[/tex] [tex]k = \frac{P^2}{A^3}[/tex]Therefore, the answer is [tex]k = \frac{P^2}{A^3}[/tex].
what is the primary pigment that makes leaves green in land plants?
Chlorophyll is the primary pigment that makes leaves green in land plants, by absorbing red and blue light.
What is chlorophyll?It is a pigment present in the plant leaves, through which plant leaves apers green in observation, it plays several roles in the plants other than the green appearance of the leaves.
During photosynthesis, this chlorophyll pigment is responsible to form reaction center through which light is absorbed and leads to a process through which light converts into chemical energy for the synthesis of food.
It is present in the chloroplast, which is the site of photosynthesis, and provides the necessary components for plant food synthesis.
Therefore, the primary pigment that makes leaves green in land plants is known as chlorophyll.
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How does cellular differentiation benefit complex organisms?
Answer:
This is because of the fact that it causes changes in size, shape, metabolic activities as well as signal responsiveness of cells.
Explanation:
Answer:
Cellular differentiation is beneficial and important for complex organisms.
Explanation:
Cellular differentiation is how generic embryonic cells become specialized cells. This occurs through a process called gene expression. Gene expression occurs because of certain signals in your body, both inside and outside of your cells.
what by-product of anaerobic respiration makes this possible
Answer:
The end products of anaerobic respiration are Lactic acid or ethanol and ATP molecules. Anaerobic respiration takes place in the absence of oxygen and is seen in lower animals. During the process of Anaerobic Respiration in prokaryotes, there is a breakdown of glucose to produce energy for cellular activities.
Explanation:
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