Answer:
Explanation:
Dissolved oxygen (DO)
The DO test measures the amount of oxygen dissolved in the water. Oxygen is essential for both plants and animals, but high levels in water can be harmful to fish and other aquatic organisms.
Water temperature
Aquatic organisms are dependent on certain temperature ranges for optimal health. Temperature affects many other parameters in water, including dissolved oxygen, types of plants and animals present and the susceptibility of organisms to parasites, pollution and disease.
pH
A pH test measures the alkalinity or acidity of water. A pH of 7 is neutral, below 7 is acidic and above 7 is basic or alkaline. Acid rain, from auto exhaust or other pollutants, causes a drop in the pH. Pollution from accidental spills, agricultural runoff and sewer overflows can also change the pH.
Escherichia coli (E. coli)
E. coli is a fecal coliform bacteria that comes from human and animal waste. The Environmental Protection Agency uses E. coli measurements to determine whether fresh water is safe for recreation. Disease-causing bacteria, viruses and protozoans may be present in water that has elevated levels of E. coli. Levels of E. coli can increase during flooding. E. coli is measured in number of colony forming units. The EPA water quality standard for E. coli bacteria is 394 colony forming units per 100 mL.
32. Cold air takes up ___________ space than warm air
Answer:
less
Explanation:
less
The Hubble Constant measures distance in:
•astronomical units
•light-years
•kilometers per second per megaparsec
•parsecs
Answer:
light years
Explanation:
because the further way it is the more light years and it has to be travelling at the speed of light
Answer:
kilometers per second per megaparsec
Explanation:
Question 1 of 20
Select the best answer for the question
1
b
2
3
image by Open OC BY 30).
via Wikimedia Commons
1. This is an image of the phospholipid bilayer. Based on what you know about the structure of the phospholipid bilayer, what is the name of the structure labeled
27
A Hydrophobic tall
ОВ. АТР
C Sodium-potassium pump
D. Hydrophilic hea
Is flame matter ( Science )
Answer:
no
Explanation:
it is plasma
Answer:
Matter is anything that has mass and occupies space. The flame itself is a mixture of gases (vaporized fuel, oxygen, carbon dioxide, carbon monoxide, water vapor, and many other things) and so is matter.
15. Which of the following are considered sources of "Chemical
Pollutants?"
A. man made fertilizers
B. insecticides
C. pesticides
D. All the above
Answer:
its probably
D. all the above
Explanation:
-
Un deportista quiere batir la
marca mundial de los 100 m
у tiene dos opciones: tratar
de hacerlo a nivel del mar o
en una ciudad ubicada a 2
500 m sobre el nivel del mar.
¿Qué ciudad debe elegir si
pretende ganar? ¿Por qué?
Ayúdenme es urgente!!!
Answer:
????? english
Explanation:
PLSS HELPP! I WILL BE GIVING BRAINLIEST:)
Answer:
Hello! your answer is the very last option at the bottom!
Answer:
The Last One
Explanation:
Populations have the potential to grow exponentially when resources are_____?
A.constant
B. Rationed
C.abundant
D. Limited
Answer:
Option C is the correct one
Explanation:
Exponential population growth: When resources are unlimited, populations exhibit exponential growth, resulting in a J-shaped curve. When resources are limited, populations exhibit logistic growth. In logistic growth, population expansion decreases as resources become scarce.
Answer:
Populations have the potential to grow exponentially when resources are abundant.
hope it is helpful to you
Escriban las diferencias y las semejanzas que existen entre los metodos citotaticos y los citotoxicos
Answer:
Ambos son similares en sus acciones.
Explicación:
La principal diferencia que existe entre los métodos citotóxicos y citotóxicos es que los citotóxicos son las sustancias que envenenan la célula, mientras que los métodos citotóxicos son las formas de toxicidad celular. Tanto los métodos citotóxicos como los citotóxicos son similares en su acción porque tanto los métodos citotóxicos como los citotóxicos dañan la célula. Tanto en los métodos citotóxicos como en los citotóxicos, ambos causan toxicidad en la célula que inhibe el crecimiento y la estructura normales de la célula.
The contest between living organisms seeking similar resources.
Answer:
competition occurs when living organisms, including animals, plants, bacteria and fungi, need the same limited resources to thrive in their shared environment.
Explanation:
hope this helps (brainliest plz)*
For heavier stems, it is advised to use
floral foam.
O Perforated
O Unperforated
What do similarities in DNA, proteins, and amino acids show about relatedness of species
Answer:
C
Explanation:
Fewer diff
Answer:
+DNA comparisons are preferred over amino acid sequences. +The order of nucleotides in the DNA indicates the evolutionary relationship more accurately than amino acid sequence. +Even though two organisms might produce the same protein, they may have slight differences in their DNA sequence.
Explanation:
What life form was the first on earth?
bacteria
amphibians
land plants
dinosaurs
what is the end product of the cell cycle
Answer:
The Meiosis Cell Cycle
Explanation:
Cell cycle is the process if cell division. The end product of cell cycle is two genetically identical daughters cells produced by cell division.
What is cell cycle?Cell cycle is the process occurring through different stages by which a cell divides to form its daughter cells. Various enzymes have significant roles in cell cycle.
A large number of DNAs in the chromosome of a cell undergo division where, the double stranded DNA separate and and each strand forms two new DNAs.
Therefore, at the end of a cell cycle through proper cell division, two genetically identical daughters cells are produced.
To learn more about cell division, refer the link below:
https://brainly.com/question/2222880
#SPJ2
Which of these is true about how often tides occur?
A. All tides occur once a week.
B. Tides have no pattern.
C. High tides and low tides occur twice a month, and spring tides and neap tides occur twice a year.
D. High tides and low tides occur twice a day, and neap tides and spring tides occur twice a month.
Answer:
D. High tides and low tides occur twice a day, and neap tides and spring tides occur twice a month.
Explanation:
D. High tides and low tides occur twice a day, and neap tides and spring tides occur twice a month.
Riscuess what kind of georgespgic barries would have led to the flinch speciation in the Galapagos
Answer:
Rivers change course, mountains rise and continents drift.
Explanation:
Rivers change course, mountains rise and continents drift are the geographic barriers that have led to the flinch speciation in the Galapagos because these barriers separated finch species from one another. Due to these geographic barriers, finch species have different body structure and features. These geographic barriers prevent two finch species from interbreeding with one another which leads to flinch speciation.
Mark is asked to use his reasoning skills to solve a problem. Jean is asked a specific knowledge question. According to Cattell, Mark will most likely use __________ intelligence, while Jean will most likely use__________ intelligence.a. crystallized; fluidb. fluid; crystallizedc. general; specificd. specific; general
Answer:
The correct answer is the option B: Fluid; Crystallized.
Explanation:
To begin with, in 1963 the psychologist Raymond Cattell introduced the concepts of both Fluid intelligence and Crystallized intelligence in where he explains that both are derived of the General intelligence. The first one refers to the ability of solve novel reasoning problems and is related to the capacity of important skills such as comprehension, learning and more. And the second one, the Crystallized intelligence refers to the ability of learn procedures and more technical knowledge about certain topics reflecting the effects of experience about that.
Which of the following is part of the mechanical layers of the Earth?
A Crust
B Aesthenopshere
C Mantle
D Exosphere
Would it be justified to call Kreb's Cycle the central wheel of metabolism? Why? Provide two specific pieces of evidence to support your answer.
Answer:
Yes.
Explanation:
Kreb's Cycle is considered as the central wheel of metabolism because the fuel molecules are oxidized ultimately within the Krebs Cycle and its intermediates are used for various biosynthetic pathways. The main function of the Kreb's cycle is to produce electron carriers that can be used in the cellular respiration for producing energy molecules in the form of ATP. without Krebs's cycle, the cell produces only two ATP molecules which very low.
Which structures are parts of the central nervous system? Check all that apply
The brain
The heart
The spinal cord
The sensory neurons
The bones
The muscles
Answer:
the brain
Explanation:
the central nervous sytem consists of the brain and spinal cord. the brain plays a central role in the control of most body functions.
A student was studying the two types of nucleic acid. Based on his observation, a piece of nucleic acid had the: 5’-GCUA-3’ What kind of nucleic acid is this?
Answer:
DNA and RNA structure and function. Nucleotides and polynucleotides. mRNA, rRNA, tRNA, miRNA, and siRNA
Explanation:
I don't normally do stuff like this so I do not know if it is even near being right
When cells can replicate, what do they do? a) grow b) make bases c) make new cells d) bond with anything
Answer:c
Explanation:
List three ways the crab's hard shell protects the crab
A segment of mRNA has the sequence ugacauagc which of the following would represent the tRNA anticodons for this mRNA
Answer: Plant because they survive by water and sunlight.
Explanation:
what are plastids
And what is a middle lamela
The middle lamella is a layer which cements the primary cell walls of two adjoining plant cells together. ... In a mature plant cell it is the outermost layer of cell wall. In plants, the pectins form a unified and continuous layer between adjacent cells.
Plastids are defined as small organelles present in the cytoplasm of the plant cell. ... Chloroplasts - These kind of plastics are used in the process of photosynthesis as they have green colored pigment.
How does the Sun transfer its energy to areas A and B?
Which statement compares how much heat is absorbed by areas A and B?
Which statement compares the temperatures of areas A and B?
Answer:
How does the Sun transfer its energy to areas A and B?
✔ radiation
Which statement compares how much heat is absorbed by areas A and B?
✔ Area A absorbs more heat.
Which statement compares the temperatures of areas A and B?
✔ Area A is warmer than area B.
Explanation:
EDGE
Answer:
How does the Sun transfer its energy to areas A and B?✔ radiationWhich statement compares how much heat is absorbed by areas A and B?✔ Area A absorbs more heat.Which statement compares the temperatures of areas A and B?✔ Area A is warmer than area B.
Explanation:
Someone please help me!!
Answer:
The correct answer is the letter B
Explanation:
I'm good in bio
Any organism that eats other animals.
otros animales.
1. Carnivore
2. Food wed
3. Energy pyramid
4. Mutualism
Answer:
1. Carnivore
Explanation:
Answer:
1 Carnivore
It only eats meat
⚠️urgent⚠️The
is living xylem that transports
up from the roots to the
and
The scientific name
for sapwood is
Answer: plant vascular tissue
Explanation:
In a certain species of insect, some individuals have flattened white disks on their bodies that protrude and interlock, resembling an orchid flower. This adaptation provides the insect with a better opportunity to capture its prey. If environmental conditions remain unchanged, it is most likely that, in future generations, the proportion of the population with this adaptation will
Answer:
A) increase only
Explanation:
this adaptation will benefit these species, therefore, increasing the population