Indicator organisms are organisms that are utilized to detect the presence of another organisms that cannot be easily identified.
We do not test for pathogens like salmonella directly but use an indicator organism like coliform because these pathogens are not easily isolated and they are much harder to identify.
Pathogens like salmonella are not tested for directly because they are much lower in numbers when found in wastes or waterbodies and to identify them directly is expensive.
Also testing directly for these micro-organisms is very expensive and non-viable. So it is better to use indicator organisms to detect their presence.
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Which of the following is a WATER-SOLUBLE vitamin?
Answer:
b. Vitamin C
Explanation: is correct
Answer:
"C" is the correct answer!
Explanation:
Absolutely "C"
what is the Purpose Question and Hypothesis of the Lab Report: Identifying Nutrients
Answer:
Oil destroys the insulating ability of fur-bearing mammals,
Explanation:
such as sea otters, and the water repellency of a bird's feathers, thus exposing these creatures to the harsh elements. Without the ability to repel water and insulate from the cold water, birds and mammals will die from hypothermia
What percentage of the earth’s land and what percentage of the earth’s oceans have been disturbed by human activities?
Answer:
the first 1 :)
Explanation:
Alzheimer’s is a bone disease in which the bones become less dense.
Please select the best answer from the choices provided
T
F
False
Alzheimer's disease is a brain disorder that slowly destroys memory and thinking skills and, eventually, the ability to carry out the simplest tasks.
THIS IS THE PICTURE
Answer:
looks yummy
Explanation:
What is that btw hahaha
What is a fishing bed
5. Which of the following enclose their DNA in a nucleus?
b. bacteria
c. eukaryotes
d. viruses
the dart thrower was throwing at the bullseye. what is the best description of this attempt?
Answer:
A. Accurate but not precise
Step-by-step explanation:
The illustration given shows that the was far from each other which means it is not precise because precision is that the given data must be close to each other. However, it is accurate because the darts are closer to the bullseye which can still be considered as accurate. Therefore, I believe this is accurate but not precise.
The best description of this attempt is that the dart thrower is aiming to hit the center of the target.
What is Dart thrower?A person who throws darts at a dartboard is known as a dart thrower. In the game of darts small missiles commonly referred to as darts are thrown at a circular target called a dartboard. Apart from being played in international competitions, the game is commonly played in bars or pubs. Each of the 20 numbered parts on a typical dartboard corresponds to a different score.
The goal of the game is to collect points by throwing darts at the board and hitting special spots to do so. The bullseye, located in the middle of the dartboard, awards the most points when hit. The popular sport and pastime requires precision, concentration and expertise.
Therefore, the best description of this attempt is that the dart thrower is aiming to hit the center of the target.
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Indigestible residues along with some of the non-reabsorbed secretions of digestive organs, undergo ____________ where the fluids are removed and a remaining solid is created.
The digestive system is involved in the breakdown of molecules to yield energy. As food passes along the digestive gut, it undergoes various processes in its breakdown.
Indigestible residues along with some of the non-reabsorbed secretions of digestive organs, undergo Compaction where the fluids are removed and a remaining solid is created.
Compaction during digestion occurs in the large intestines. This occurs wherein water is removed from the indigestible residues and reabsorbed enabling the compacting of these waste materials. Afterwards, a solid-waste material is produced.Learn more about the digestive system: https://brainly.com/question/14325297
WHAT R THE ORGANSIMS THAT CAN BE SEEN BY LIGHT MICROSCOPE
Answer:
bacteria, mitochondria, human egg
What does an optical part of the light microscope consist of? A. Ocular.
B. Diaphragm.
C. Condenser.
D. Turret
Which hormone is responsible for the development of the male secondary sex characteristics? estrogen progestin progesterone testosterone.
Answer:
It is Testosterone
Explanation:
The hormone responsible for the development of the male secondary sex characteristics is testosterone. Hence option D is correct.
What is testosterone?Testosterone is a hormone primarily produced in the testes of males and to a lesser extent in the ovaries of females and the adrenal glands of both sexes. It is an androgen, or a hormone that promotes the development of male characteristics.
Testosterone plays a crucial role in the development of male reproductive tissues, such as the testes and prostate, as well as in the growth of muscle mass and bone density.
It is also responsible for the development of secondary sex characteristics in males, such as facial hair growth, a deepening of the voice, and the growth of Adam's apple. Testosterone also regulates sex drive (libido) and sperm production.
In females, testosterone is produced in smaller amounts and helps regulate the menstrual cycle and promote bone density.
An imbalance of testosterone levels in either males or females can lead to various health issues, including infertility, osteoporosis, and disorders of sexual development.
Hence option D testosterone is correct.
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gas exchange occurs between the tissue cells and the blood in the
Answer:
alveoli
Gas Exchange with Tissues
Gas exchange occurs in the alveoli so that oxygen is loaded into the bloodstream and carbon dioxide is unloaded from the bloodstream. Afterwards, oxygen is brought to the left side of the heart via the pulmonary vein, which pumps it into systemic circulation.
Explanation:
hope this helps
how long does it take for ancestry dna results to come back
Answer:about 6-8 weeks
Explanation: about 6-8 weeks to process from the time that the lab receives your DNA sample.
PLZ HELP
why water loss through perspiration is more important during a vigorous exercise and at elevated temperatures than water loss through urination under the same conditions.
Answer:
Evaporation po
Explanation:
Sana nakatutulong
#Carry on learning
Pa brainliest po
Fleas and mosquitoes sometimes transmit disease pathogens such as bacteria and viruses from one individual to another. Such agents (fleas and mosquitoes) are called
Answer:
Insects
Explanation:
Hope this helps you alot
whats the difference between saturated and unsaturated fat
Answer:
The number of double bonds in the fatty acid chain
If you are pushing a shopping cart and you start pushing harder what happens?
Answer:
The shopping cart will continue rolling until it will stop.
Explanation:
Please help a girl out !
Answer:
3=??
5=B
6=C
7=J
8=E
9=G
Explanation:
❤️ sorry I don't know 3 number
what is the main difference between a biome and an ecosystem
An ecosystem is quite smaller than a biome and exists within a biome.
A biome refers to a large habitat ocupied by assorted fauna and flora. Biomes are classified based on abiotic conditions such as temperature, soil types, rainfall etc. An ecosystem is a self supporting unit in which materials and energy are exchanged within the system.
The difference between a biome and an ecosystem is that a biome is a collection of different ecosystems that are found within a habitat while an ecosystem is composed of living and nonliving factors. An ecosystem is quite smaller than a biome and exists within a biome.
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the major way that meiosis ii differs from mitosis is that
Meiosis and mitosis are forms of cell divisions that occurs in cells in eukaryotes. This forms of division enables growth and development.
The major way meiosis ii differ from mitosis is that in meiosis II, the daughter cells formed are haploid cells.
Mitosis is also termed as an equational division meaning that the end result yields the same number as the beginning, there is no reduction and resulting cells are still diploid.
In meiosis, there is the reduction in half first in meiosis I then the homologous chromosomes separates at the centromeres in meiosis II resulting in haploid cells.
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What does the independent
variable do?
Answer:
There are 3 types of variables you need to know
Independent Variable — what you keep the same (during an experiment)
Dependent Variable — what you measure (during an experiment)
Control Variable — what you change (during an experiment)
Which genetic disorder is this karyotype for?
cystic fibrosis
Down syndrome
sickle cell anemia
hemophilia
What happens during metaphase 2 in meiosis?
Answer:
During metaphase II, the centromeres of the paired chromatids align along the equatorial plate in both cells. Then in anaphase II, the chromosomes separate at the centromeres. The spindle fibers pull the separated chromosomes toward each pole of the cell.
What is one reason that the surface water at the equator is less dense than
the surface water at the poles?
Answer: At low latitudes, near the equator, direct overhead sunlight received all year warms surface waters.
Cold water is also more dense, and as a result heavier, than warm water. Colder water sinks below the warm water at the surface, which contributes to the coldness of the deep ocean.
Explanation:
Answer:
The density of ocean water is so varied, that while there may be a generally considered variation due to temperature, taking random samples in a wide variety of places, thus you can distinguish no real pattern.
Explanation:
suggest why the injections also contain the hormone testosterone
Answer:
do you have any context to the question?
A process in which cells surround and engulf substances that are too big to pass
through the membrane is known as...
membrane pump
endocytosis
facilitated diffusion
exocytosis
Answer:
including other cells, by enclosing the particles in an extension of the cell membrane and budding off a new vesicle. During pinocytosis, cells take in molecules such as water from the extracellular fluid. Finally, receptor-mediated endocytosis is a targeted version of endocytosis where receptor proteins in the plasma membrane ensure only specific, targeted substances are brought into the cell.
Explanation:
so the answer is exocytosis
Answer:
Endocytosis
Explanation:
What is cellular respiration and how does it work
Explanation:
cellular respiration, the process by which organisms combine oxygen with foodstuff molecules
The microscopic filtering units found in the kidneys that are responsible for urine formation are called
Answer:
nephrons
Explanation:
there are about one million nephrons in one kidney which are responsible for urine formation
The microscopic filtering units found in the kidneys that are responsible for urine formation are called nephrons, so here the correct option is option a.
Throughout the nephron, various processes such as filtration, reabsorption, and secretion occur to produce urine. Filtration occurs at the glomerulus, where water and small solutes are forced out of the blood into the Bowman's capsule. Reabsorption involves the selective reabsorption of water, ions, and nutrients from the filtrate back into the bloodstream. Secretion involves the active transport of waste products, excess ions, and toxins from the bloodstream into the filtrate. So here, the correct option is option a.
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complete question is below
The microscopic filtering units found in the kidneys that are responsible for urine formation are called
A. nephrons
B. kidney
what is the proton gradient in cellular respiration?
Answer:
The proton gradient produced by proton pumping during the electron transport chain is used to synthesize ATP. Protons flow down their concentration gradient into the matrix through the membrane protein ATP synthase, causing it to spin (like a water wheel) and catalyze conversion of ADP to ATP.
A proton gradient is a difference in the concentration of protons (H+) across a membrane. In cellular respiration, a proton gradient is created by the electron transport chain (ETC) in the mitochondria.
The ETC is a series of proteins that shuttle electrons from NADH and FADH2 to oxygen. As the electrons are shuttled, they lose energy, which is used to pump protons out of the mitochondrial matrix into the intermembrane space.
This creates a concentration gradient, with more protons in the intermembrane space than in the mitochondrial matrix.
The proton gradient is used to power ATP synthesis. The enzyme ATP synthase, which is located in the inner mitochondrial membrane, uses the energy of the proton gradient to drive the synthesis of ATP from ADP and inorganic phosphate (Pi).
The proton gradient is a key part of cellular respiration, and it is essential for the production of ATP. Without the proton gradient, ATP synthesis would not be possible, and cells would not be able to produce the energy they need to function.
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