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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The ____________ receives the filtrate from the DCTs of several nephrons and funnels it toward the ____________ .
Answer:
collecting duct, renal pyramid
Explanation:
The collecting duct receives the filtrate from the DCTs of several nephrons and funnels it toward the renal pyramid.
what is the primary function of the chlorophyll pigment?
Answer:
to absorb light—usually sunlight.
Explanation:
Which unit should be used when measuring the height of an adult?
Answer:
Feet and inches, or centimeters unit should be used when measuring the height of an adult
Explanation:
Which one of the following tissues is illustrated by the sketch?
A. xylem C. Collenchyma
B. Parenchyma D. Epidermis
objects are brought into focus on the retina by changes in the curvature and thickness of the
Objects are brought into focus on the retina by changes in the curvature and thickness of the lens.
What is eye lens?The lens basically directs light rays onto the retina. The lens is clear and replaceable if necessary. As we age, our lenses deteriorate, necessitating the use of reading glasses.
The lens is normally clear and is located behind the iris. The pupil directs light to the lens.
Small muscles attached to the lens can cause the lens to change shape, allowing the eyes to focus on objects that are close or far away.
Light bends (refracts) and focuses on the retina at the back of the eye as it passes through the lens.
The lens's thickness and curvature can be adjusted to focus on objects at various distances and ensure that the image is as clear as possible (this process is known as accommodation).
Thus, eye lens helps to focus the object.
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classify the materials that undergo decay. write decay and non-decay in the space provided for
1. fish
2.stick
classify the materials that undergo decay. write decay and non-decay in the space provided for 2) stick
PLEASE HELP !!!!
What are their chances of having a child that has A+ blood?
Answer:
I think it must be 25%
Explanation:
Not sure how to explain
Answer:
3 in 8 people
Explanation:
If you have type A blood, your parents had one of the following possible combinations of blood types: AB and AB. AB and B. AB and A.
whats the process of (kepler-186f) fusion between these atoms that occurs in all-stars
Answer: the main element
Explanation: vamp
Together, erosion and deposition help shape sand dunes, ____ and deltas.
Together, erosion and deposition help shape sand dunes, canyons, and deltas.
My thoughts about genetically modified crops
What is the correct abbreviation for pan troglodytes (chimpanzee)?.
Answer:
The correct abbreviation for Pan Troglodytes, which is the scientific name for chimpanzees, is PTR.
Explanation:
Hope this helps you :)
Why can populations of invasive species increase rapidly in new environments
Answer:
they have no preditors in that current enviroment that can or is used to eating them so they just grow with no resistance
Explanation:
Place each land feature in the correct category based on the process that causes its formation
•Oxbow lake. Eroison by rivers
•Alluvial fan
•Delta
•Meander. Deposition by rivers
•Waterfall
•Flood plain
Deposition by rivers generates alluvial fans and deltas. Moreover, erosion by rivers generates waterfalls, flood plains, oxbow lakes and meanders.
An oxbow lake is a lake located in a meandering channel, and therefore on a floodplain.
Alluvial fans are accumulations of sediments created as flowing water bodies interact with mountains or hills.
A delta is a formation of land composed of sediments located in the mouth of the river.
A waterfall is a point in a river where water spills suddenly downward.
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Answer:
Answer in picture
Explanation:
what is the process of producing energy in living organisms
Answer:
cellular respiration
Explanation:
Which statement describes the way the paramecium reproduces asexually
A,it happens by cell division that include mitosis.
B,it happens by the formation of gametes.
C,it happens by cell division that include meiosis.
D.it happens by fertilization of an egg by sperm.
The statement that describes the way the paramecium reproduces asexually is as follows: it happens by cell division that include mitosis (option A).
What is asexual reproduction?Asexual reproduction is one of the two types of reproduction that involves neither meiosis nor fusion of gametes.
This means that in asexual reproduction, new offsprings are produced by a single parent. The new individuals produced are genetically and physically identical to each other i.e., they are the clones of their parents.
This is possible because the single parent cell divides mitotically to produce identical daughter cells.
Therefore, option A is correct regarding the way paramecium reproduces asexually.
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Describe how the Earth’s surface changed over time?
Answer:
Earth's surface is constantly changing. Wind, water, and ice break down large rocks and move sediments on the surface. It usually takes years for weathering, erosion, and deposition to cause noticeable changes. Some events, though, change Earth's surface much more quickly.There are basically 2 types of changes that occur to the earth's surface (i) Slow change and (ii) fast change. Fast changes occur through the actions of earthquakes, volcanoes, landslides, etc. while slow change takes time and has a process.
Explanation:
Our home planet Earth is a rocky, terrestrial planet. It has a solid and active surface with mountains, valleys, canyons, plains and so much more. Earth is special because it is an ocean planet. Water covers 70% of Earth's surface. When it comes to changes on the Earth's surface, the main processes to take into account are plate tectonics and the rock cycle as well as the sea-floor spreading. ... These collisions causes mountains and volcanoes to form on the plate boundaries and thus changes the shape and form of the landmass
what is the purpose of a broth in a microbiology laboratory
What is the difference between a synthesis reaction and a digestion reaction?
Answer:
Explanation:
Synthesis reactions occur when two different atoms or molecules interact to form a different molecule or compound
Digestion reaction is when its broken down into glucose by a type of chemical reaction called hydrolysis
true or false: the difference in the sun, earth, and moon’s syzygy is why there are different types of eclipses.
Answer:
I think the answer is true
Which statement best represents the way the köppen climate system, environmental determinism, and possibilism are related?.
HELP WILL GIVE BRAINLIEST
How does the temperature change as you move from the top to the bottom of
the thermosphere?
A. It stays the same.
B. It changes randomly.
C. It increases
D. It decreases
Which butterfly-shaped portion of the brain is responsible for spinal reflexes?
Answer:
b. Gray matter
Explanation: is correct
pls help im stuck on this question
Answer:
A- cellular respiration : carbon dioxide
Explanation:
This question is looking for byproducts ie Photosynthesis produces Oxygen. Cellular respiration produces Carbon Dioxide. Hopefully I was able to help you!
What results at the end of biochemical reactions that involve enzymes?
The results at the end of biochemical reactions that involve enzymes are one or more PRODUCTS. They are the consequence of these reactions.
Chemical reactionsA chemical reaction can be defined as a process where one or more substrates react in presence of an enzyme to generate one or more products.
These enzymes are proteins that catalyze different reactions by lowering the activation energy.
The enzymes bind to specific substrates in order to form a complex which is required to carry out the reaction.
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if a dna strand has the nucleotide sequence of CCGAGTTG, what is the nucleotide sequence of the complementary strand
Answer:
i dont know
:>
Your body's 2nd choice of food group to break down for energy?
Fat
When body doesn't get carbs it uses fat.
Plzzzzzzbhelp meeeee plzzzzzzz
Answer:
I'm gonna bet on house
Explanation:
Sofia’s favorite meal is breakfast, and she is careful to include healthy components along with her favorite foods. She knows breakfast helps to keep her energy levels up until lunch. Sophia's digestive system helps her body get energy from food. How do the nutrients from food get to the body's cells? A. The nutrients are distributed by the digestive system to the parts of the body that need them. B. The nutrients are picked up and transported around the body by blood from the circulatory system. C. The nutrients are absorbed directly into the cells that need them. D. The circulatory system brings nutrients to the digestive system to be processed for the cells.
Answer: c
Explanation:because it needs cells I think…
The nutrients from the food get to the cells of the body by the action of two organ systems i.e. the digestive system and the circulatory system.
What is the role of the digestive system?The digestive system may be defined as a type of organ system that significantly deals with the breakdown of food substances into simpler components that can easily be consumed by the body.
According to the context of the question, the food that we eat reaches the stomach through the esophagus where multiple enzymes perform their roles. After the stomach, the food may be passed to the small intestine which is absorbed here and then the nutrients assimilate in the blood.
Through the blood, the nutrient can be transported around the body by blood from the circulatory system. Thus, the correct option for this question is B.
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When the dude kicks a soccer ball, his knee joint is the axis, the force is generated by the quadriceps pulling on the tibia, and the resistance is the foot, lower leg, and ball; this is an example of which type of lever?
Answer:
c. Third-class lever
Explanation: is correct
Although the human colon may be one of the most diverse microbial communities on Earth, the majority of the bacteria are classified as __________.
Answer:
prokaryotic bacteria/cells are found to be the most common type of single organisms.
Although the human colon may be one of the most diverse microbial communities on Earth, the majority of the bacteria are classified as anaerobes.
What are anaerobic organisms?Anaerobic organisms are life forms that generate ATP in hypoxia conditions (absence of oxygen).
ATP is the energy con of the cell to carry out different cellular metabolic functions.Anaerobic bacteria form part of the intestinal microflora in humans.In conclusion, although the human colon may be one of the most diverse microbial communities on Earth, the majority of the bacteria are classified as anaerobes.
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