which is an example of source pollution that may negatively affect the atmosphere
Answer:
Smokestacks, discharge pipes, and drainage ditches.
Explanation:
Examples include smokestacks, discharge pipes, and drainage ditches. Factories and power plants can be a source of point-source pollution, affecting both air and water. Smokestacks may spew carbon monoxide, heavy metal, sulfur dioxide, nitrogen dioxide, or “particulate matter” (small particles) into the air.
Which of these units of measurement should be used to measure the length of a eukaryotic cell?
A. meters
B. centimeters
C. millimeters
D. micrometers
Answer:
D. micrometres
Explanation:
The most suitable unit for measuring cell size is micrometres.
Answer:
D
Explanation:
Micrometers is the unit of measurement to be used when measuring the length of a eukaryotic cellMeter is not suitable [used for measuring distances and human height]Centimeters is also not small enough [for small objects]Millimeters is also not enough [for precision instruments]Scientists are interested in measuring the effect of pollution on the water quality of a stream. They will use observations of various bottom-
dwelling insects, or macroinvertebrates, collected in the stream as indicators of the physical, chemical and biological conditions within the
stream. Which of the following best describes why macroinvertebrate sampling can be used to assess the overall health of a stream?
Macroinvertebrates live in an aquatic ecosystem for a long enough time to show the chronic effects of pollutants, and many
tend to remain in the same area throughout their life span
B
Macroinvertebrates migrate long distances to feed or reproduce, and they have a low tolerance to pollutants.
Macroinvertebrates are top predators, so they are often used in determining whether toxins will bioaccumulate or
biomagnify in an aquatic environment
D
Macroinvertebrates can be collected to evaluate the effect of various test parameters such as dissolved oxygen, nitrites, and
pH at the time that the sample was taken
v
>
Scientists are interested in estimating the effect of pollution on the water grade of a stream. They will use statements of various bottom-dwelling insects, or macroinvertebrates, contain in the stream as hands of the physical, chemical, and biological conditions within the stream, Thus option "C" is correct.
What are some of the advantages of biological monitoring of macroinvertebrates in a stream?Macroinvertebrates merge the marks of short-term environmental deviations.
Most species have a complicated life cycle of about one year or more. Liable life phases will respond fast to stress; the overall community will respond more slow.
Thus, option "C" is correct, Macroinvertebrates are top predators, so they are often used in defining whether toxins will bioaccumulate or biomagnify in an aquatic environment.
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ocean surface currents are created b
a) differences in water densitys
b) variations in salinity
c) differences in water temperatures
d) friction with winds
Answer:
D) Friction with winds
Which specific process in the light-dependent reactions produces oxygen and hydrogen ions?
Answer:
The splitting of water
Explanation:
Which specific process in the light-dependent reactions produces oxygen and hydrogen ions is the splitting of water.
It’s multiple choice I just need the answers please.
Answer:
5. 1
6. 3
7. 4
Those would be my best guesses!
Explanation:
9. What type of weather front would be responsible for the following forecast: “A period of heavy rain within the next 24 hours followed by warmer temperatures. Thunderstorms and possibly thundersnow from the period of 24 to 30 hours from now with temperatures dropping by 20-25˚ F and barometric pressure dropping by 15-20 mb. Snow beginning 30-36 hours from now, accumulation of 10-13 inches possible. Cooler temperatures and clear skies in 2 days.”
Answer:
dropping by 20-25˚ F and barometric pressure dropping by 15-20 mb. Snow beginning 30-36 hours from now, accumulation of 10-13 inches possible. Cooler temperatures and clear skies in 2 days.”
In which of the following situations does the cell use active transport?
Answer: The correct option is B. Sodium ions move into the cell from areas of lower concentrations.
Explanation:
Active transport can be described as a process in which molecules move from an area of lower concentration to an area of higher concentration against the concentration gradient. Energy is required for the process of active transport to occur.In the option B, sodium ions are moving into the cell from areas which have a low concentration of sodium i.e against the concentration gradient. Hence, option B tells that the sodium ions will move inside the cell by the process of active transport.
Explanation:
Purpose
a) Construct distance-time graphs from given tabulated data.
b) Describe motion in words, using the graph as point of reference.
c) Calculate and interpret the slopes of the graph.
Materials
Ruler, pencil and graphing paper
Data
Distance
d (m)
Time
t (s)
0 0
20 2
38 4
60 6
79 8
100 10
120 12
138 14
Data for a Bicycle’s Motion
1. Plot the above tabulated data
(distance, d vs t)
2. Describe the graph. What does it show
regarding the motion of the bicycle?
3. Find the slope of the graph. What
does the slope d-t graph
represent?
Part B – Data for the Motion of a Passenger Jeepney
1. Plot the given tabulated data (d vs t)
2. Compute for the slopes of the graph
a. at t = 0 h to t = 2 h
b. at t = 2 h to t = 4 h
c. at t = 4 h to t = 5 h
d. at t = 5 h to t = 8 h
3. What do the slopes show? What does a
positive slope show? A negative slope? A zero
slope?
Distance
d (km)
Time
t (h)
0 0
50 1
100 2
100 3
100 4
150 5
100 6
50 7
0
Answer:
bench
Communicating openly, clearly, and with empathy will help in building rapport with a team and boost their spirit productively. Establishes Transparency – Transparency generates trust among employees. Trust creates an environment where people are honest and accountable.Jan
:
Which feature of a shark is an adaptation for being a predator?
A. Sensitive sense of smell.
B. Stream lined body.
C. Fins.
D. Gills.
Answer:
B. Stream lined body.
Define habituation. The definition
Answer:
Habituation is defined as a decrement in response as a result of repeated stimulation not due to peripheral processes like receptor adaptation or muscular fatigue. It is a process occurring within the nervous system (in animals with nervous systems).
Which type of species produces many offspring, each of which has a small chance of surviving to maturity?
Specialist species
Generalist species
r-selected species
K-selected species
Answer:
r-selected species
Explanation:
r-selected species are those that emphasize high growth rates, typically exploit less-crowded ecological niches, and produce many offspring, each of which has a relatively low probability of surviving to adulthood (i.e., high r, low K). A typical r species is the dandelion (genus Taraxacum).
Answer: its not r-selected species
Explanation: took test and got it wrong
What’s the answer?????
Answer:
b
Explanation:
The answer is b: digital signal
What discovery was made by Alvin?
a.
over 4000 new species of marine life
b.
hydrothermal vents
c.
the Aqualung
d.
the temperature of different parts of the ocean
Please select the best answer from the choices provided
A
B
C
D
Question 5 of 10
many unicellular organisms. In addition, anything less than a cell
is
There are
not alive. What do these two statements imply about cells?
A. Cells come from preexisting cells.
• B. Cells are the basic units of life.
®
C. Most organisms are made up of cells.
• D.
Bacteria are single-cell organisms.
SUBMIT
Answer:
b
Explanation:
Explanation:
A cell is the basic unit of life which carries all the biological molecules inside the membrane to keep an organism alive. It is the structural and functional unit of life of which all living organisms are made of.
Living organisms can be single-celled or multi-celled as cells can attach, interact with each other forming complex tissues dividing the responsibility to different tissues which further form organ and organ system of an organism like the digestive system. So, cells form the basic unit of biology.
If Earth's gravity were much less powerful, our atmosphere would be similar to
the moon's
Saturn's
Jupiter's
Venus'
Describe how one could experimentally determine whether a bacterium
was a psychrophile or a mesophile.
Answer:
How can you determine experimentally whether a bacterium is a psychrophile or a mesophile? incubate two cultures, one around 10°C and the other around 35°C. If it grows in the lower temperature incubator, it is a psychrophile. If it grows in the higher temperature incubator, it is a mesophile.
Explanation:
Answer:
incubate two cultures, one around 10°C and the other around 35°C. If it grows in the lower temperature incubator, it is a psychrophile. If it grows in the higher temperature incubator, it is a mesophile.
Explanation:
hope this helps
What is the taxonomy order of the dove Orchid
Answer:
Peristeria elata is a species of orchid
Explanation:
:P
~Vee
Answer:
Your answer is, Peristeria.
Explanation:
Peristeria is a genus of plants of the family Orchidaceae commonly called dove orchid or Holy Ghost orchid. In line with the common name, the genus' name is from the Greek word peristerion meaning "from dove". According to the Royal Horticultural Society, Per is the official orchid abbreviation for this genus. In nature, it is found across much of South America as well as in Panama, Costa Rica and Trinidad.
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I hope this helps you :)
pls mark brainleist :P
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w/ <3...
Tori
Ptusem unscrammbled? Science how does your heart work?
Answer:
septum
Explanation:
Septum is the required answer
Why is shadow so small ?
Answer::)
Explanation:
The reason you shadow is small is either because you are small or because the sun is at a certain angle and your shadow seems small.
What did Redi find in his experiment?
- Both broths contained living organisms.
- Only the broth with the flask open to the air contained living organisms.
- Flies were found in all of the sealed and unsealed jars of rotting meat.
- Flies were not found in the sealed jars of rotting meat.
Answer:
- Flies were not found in the sealed jars of rotting meat.
answer
- Flies were not found in the sealed jars of rotting meat.
Explanation:
Which pair are the correct base pairs in DNA?
cytosine and adenine
adenine and uracil
cytosine and guanine
thymine and guanine
Please help ASAP
Explanation:
cytosine and adenine
adenine and uracil
the correct ones
9. The clover-leaf shaped structure of tRNA
represents:
(2.5 Points)
RNA secondary structure
RNA quaternary structure
RNA-protein association
DNA-RNA hybrid structure
Diseases such as colds or influenza are caused by a
O bacterium
O parasite
O fungus
O virus
Answer:
bacteria
Explanation:
you can get sick by a bacterium that is on your bathroom floor or tub or anything really.
Hope it helps <33
How is mitosis different in plants and animals?
Answer:
cytokinesis
Explanation:
IN plants,a cell plate is formed ,where as in animal a cleavage is formed
Which of the following is an impact of beach use by humans and vehicles?
A. Decrease in air pollution
B. Decrease in beach erosion
C. Increase in sea water pollution
D. Increase in marine plants and animals
Answer:
the answer is a for approval
Which is a characteristic of a developing country
A:higher mortality rates
B:lower fertility rates
C:higher literacy rates
D:lower mortality rates
I believe the answer would be A: higher mortality rates
COULD SOMEBODY HEEEEL_P
Answer:
The first one is wrong
Explanation:
The urine flows from the kidneys through the ureters to the bladder.
List at least 4 conserved processes, molecules, or cell components that support the concept of a universal common ancestor.
The 4 conserved processes, molecules, or cell components that support the concept of a universal common ancestor are
Homologous structuresAmino Acid Sequencing (DNA)Embryology (many embryos look the same)Fossil RecordsWhat supports the concept of a universal common ancestor?Proteins. Proteomic evidence also keeps the universal ancestry of life. Vital proteins, such as the ribosome, DNA polymerase, and RNA polymerase, are found in everything from the most primitive bacteria to the most complex mammals.
Thus, these are the 4 conserved processes.
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deforestation increases the greenhouse effect because with less trees in the area more ____ escapes into the atmosphere. This is one of the contributors to the current problem of global warming and increase in the Earth's average _______.
Answer:
deforestation increases the greenhouse effect because with less trees in the area more CARBON escapes into the atmosphere. This is one of the contributors to the current problem of global warming and increase in the Earth's average TEMPERATURE.
Explanation: