Answer:
white blood cells
Explanation:
Which is NOT an example of leaves humans commonly eat?
Spinach
Zucchini
Kale
Field greens
Answer:
zucchini
Explanation:
The half-life of potassium-40 is 1.3 billion years. If a rock specimen contained 1g of
potassium-40 when it was formed, how much potassium-40 would be left if the rock is 2.6
billion years old?
Answer:
2.6 billion years
Explanation:
There are essentially two ways of solving nuclear half-life problems. One way is by applying the half-life formula, which is
A
(
t
)
=
A
0
(
t
)
⋅
(
1
2
)
t
t
1
2
, where
A
(
t
)
- the quantity that remains and has not yet decayed after a time t;
A
0
(
t
)
- the initial quantity of the substance that will decay;
t
1
2
- the half-life of the decaying quantity;
In this case, the rock contains
1/4th
of the orignal amount of potassium-40, which means
A
(
t
)
will be equal to
A
0
(
t
)
4
. Plug this into the equation above and you'll get
A
0
(
t
)
4
=
A
0
(
t
)
⋅
(
1
2
)
t
t
1
2
, or
1
4
=
(
1
2
)
t
t
1
2
This means that
t
t
1
2
=
2
, since
1
4
=
(
1
2
)
2
.
Therefore,
t
=
2
⋅
t
1
2
=
2
⋅
1.3 = 2.6 billion years
A quicker way to solve this problem is by recognizing that the initial amount of the substance you have is halved with the passing of each half-life, or
t
1
2
.
This means that you'll get
A
=
A
0
2
after the first 1.3 billion years
A
=
A
0
4
after another 1.3 billion years, or
2
⋅
1.3 billion
A
=
A
0
8
after another 1.3 billion years, or
2
⋅
(
2
⋅
1.3 billion
)
Natural gas drilling locations are determined by
a random drilling
b. seismic surveys
C. natural gas dogs
d satellite surveys
Answer:
The answer is b. seismic surveys.
Answer:
B - SEISMIC SURVEYS
Explanation:
What is the difference between chromosomal DNA and Plasmid DNA?
Answer:
chromosomal DNA is larger than plasmid DNA
The Earth’s rotation is the only thing that impacts wind
Answer:
false
Explanation:
While the Earth's rotation does play a role, it is a somewhat indirect one. The primary factor that affects the formation of winds is differences in atmospheric pressure. As is true throughout nature, any fluid will try to move from a region of high pressure to a region of low pressure.
Answer:
False
Explanation:
This is false because the earth goes one way but the wind can go all kinds of ways
Which would have a bigger effect on an organism, an error during transcription or a missense mutation? Explain in one or two sentences. (
A missense mutation will change the amino acid sequence. This may alter the function of the protein, usually negatively, but sometimes positively. This later case may be favored by evolution, as the change is heritable.
So basically how do i ask my best friend out?
Answer:
Explain
well just do it i belive in you dont try to act all diffrent or cool that makes people not like u just be yourself
T A C G T G G A C T G A G G A C T C C T C is this a 'sense' strand or 'antisense' strand?
The information provided is NOT sufficient to indicate if the TACGTGGACTGAGGACTCCTC sequence is a 'sense' strand or 'antisense' strand.
What is a sense DNA strand?DNA is a double helix molecule composed of two long chains of nucleotides linked by hydrogen bonds.
During transcription, the sense DNA strand is actively used as template to produce a complementary RNA molecule.
In consequence, it is required to know the sequence of the resulting RNA to determine if the sequence above belongs to a 'sense' strand or 'antisense' strand.
Learn more about transcription here:
https://brainly.com/question/1048150
Answer:
C
Explanation:
Which type of rock would most likely be found near the landform shown in the picture?
Answer:
Igneous rock because it forms when hot molten rock (lava) crystallizes and solidifies .
Explanation:
Have a Nice day!! :D
The cellular machinery responsible for protein synthesis is the:.
At each link of the food web, approximately_________
percent of the energy is passed on to the consumer and
approximately_________
percent of the energy is lost as
heat.
Approximately 10 percent of the energy is passed on to the consumer and approximately 90 percent of the energy is lost as heat.
What is a Food web?This refers to an interconnecting diagram that shows the overall food relationships between organisms in a particular environment.
90 percent of energy is usually lost as heat thereby allowing for the transfer of only 10 percent of energy to the consumers.
Read more about Food web here https://brainly.com/question/2179
Evaluate the role of media in addressing substance abuse with special reference to the following . 1television 2.social media platforms
Social media help in addressing substance abuse through awareness and sensitization are going on to make know of the harm and danger in substance abuse.
What is social media?Social media are online platforms that allows the user to create, write or display content and share with viewers and it also helps to access information and participate in many social networking.
Socal media campaigns have been done on television programs and other social media platforms to prevent the illicit use of drug by young and old people. This is because most young people visit the online platforms more and awareness and sensitization are going on to make know of the harm and danger in substance abuse.
Therefore, media help in addressing substance abuse through awareness and sensitization are going on to make know of the harm and danger in substance abuse.
Learn more on social media here,
https://brainly.com/question/3653791
What is the great pacific trash gyre?
Answer:
The Great Pacific garbage patch (also Pacific trash vortex) is a garbage patch, a gyre of marine debris particles, in the central North Pacific Ocean. It is located roughly from 135°W to 155°W and 35°N to 42°N.
Name the five carbon sugar in a DNA neucleotide
At the molecular level, how do scientists know a new species has arisen?
Answer:
DNA sequencing has brought us the genetic species concept. In this model, species are defined by genetic isolation rather than reproductive isolation. Species may be more or less identical morphologically, but differences in DNA determine whether or not a population is a new species.
Explanation:
? :-)
the peripheral nervous system includes
A. All Nerves outside the central nervous system
B. the Brain and the spinal cord
C. the spinal cord and all of the nerve
D. all of the nerves contained within the body
Answer:
A.
Explanation:
The PNS consists of the nerves and ganglia outside the brain and spinal cord.
PLEASE HELP WITH THIS
Answer:
by operating
Explanation:
this by opearating and remove the area tha cancer occur
Which compounds are not soluble in water?
answer :
All salts of : carbonate, CO3 2- phosphate , PO4 3- oxalate, C2O4 2- chromate, CrO4 2-sulfide, S 2- most metal hydroxides and oxides (OH-)
Exceptions :
Salts of NH4 +, and the alkali metal cations
Answer:
All salts of : carbonate - phosphate - oxalate, chromate,- most metal hydroxides and oxides
Explanation:
Examine the words and/or phrases below and determine the relationship among the majority of words/phrases. Choose the option that does not fit the pattern.
A. ash
B. dissolved gases
C. silica content
D. temperature
The only word among the available words that do not fit the pattern would be temperature.
Words and relationshipAsh, dissolved gases, and silica content are similar in the way that all of them are made up of matter.
Matter refers to any substance with weight and is able to occupy space. Ash is made from solid particles. dissolved gases are gases, and silica contents are also from solids.
Temperature, on the other hand, is a scalar quantity. It is not something that can be held or seen. It has no weight and neither does it occupy space.
More on matter can be found here: https://brainly.com/question/4513444
What are the impacts of genomic era on microbial phylogeny systematics
provide a platform for current research on archaea, bacteria, microbial eukaryotes and viruses.
Can someone PLease help me with these questions?!
Answer:
I can't read it. It is too small
Explanation:
It is too small for me to read
11
12
13
14
15
16
17
18
19
20
Air pollution affects everyone equally.
Please select the best answer from the choices provided
OT
OF
Answer:
16
Explanation:
Air pollution affects everyone equally is true statement.
What is Air pollution?When pollutants are released into the atmosphere, they endanger both human health and the health of the entire planet. The World Health Organization (WHO) estimates that air pollution causes close to seven million deaths worldwide each year.
Currently, nine out of ten people breathe air that contains more contaminants than the WHO's recommended levels, with those in low- and middle-income nations suffering the most.
The 1970-established Clean Air Act gives the U.S. Environmental Protection Agency (EPA) the power to protect public health by controlling the emissions of certain dangerous air pollutants.
Therefore, Air pollution affects everyone equally is true statement.
To learn more about Air pollution, refer to the link:
https://brainly.com/question/18951513
#SPJ7
the autonomic nervous system controls
A. tying your shoes
B. Heart Rate
C. chewing a bite of food
D. using a fork
The answer will be :
B. Heart Rate
Which virus is named after the organism it infected?
ICTV announced “severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2)” as the name of the new virus on 11 February 2020. This name was chosen because the virus is genetically related to the coronavirus responsible for the SARS outbreak of 2003.
Answer:
Severe Acute Respiratory Syndrome coronavirus 2
Explanation:
(SARS-CoV-2) was announced by International Committee on Taxonomy of Viruses as the name of the new virus on 11/02/2020. The name was chosen because the virus is genetically related to the coronavirus responsible for the SARS outbreak of 2003.Although the two viruses are related, they are different.
Which of these is a benefit of fish farming?
A. It poses a risk of disease for wild stocks.
B. It depletes fish populations.
C. It eases the demand on commercial fisheries.
D. It pollutes natural bodies of water.
Answer:
C
Explanation:
It's pretty simple really, just find the Benefit. Pollution is definitely a harmful effect, disease is also not a benefit, and depletion of fish population is bad, so easing demand on commercial fisheries is the answer
Different________show very different characteristics or variations, however you can also have_______within the same species.
A. Evolutionary animals, major differences
B. Species, variation
C. Animals, subspecies
D. Evolutionary animals, subspecies
Look at the tropical grassland ecosystem.
Picture of tropical grassland with zebras and wildebeests feeding on grasses. Giraffes are in the background, along with bush trees.
Picture of tropical grassland with zebras and wildebeests feeding on grasses. Giraffes are in the background, along with bush trees.
There are more zebra than the carrying capacity of the pictured ecosystem. This represents a
climax community
biological surplus
peak phenomenon
sigmoid phenomenon
Answer:
It is B Biological Surplus
Explanation:
Biological Surplus means that a species population has grown too big, above carrying capacity
Explain the characteristics scientists use when observing organisms and placing them in six kingdoms
Answer:
Classification of organisms is done while considering many factors such as:
Cell type- whether the organism is prokaryotic or eukaryotic
Cell structure- This includes both the presence and composition of the cell wall
Body type- whether the organism is multicellular or unicellular
Mode of nutrition- the method through which the organism achieves its nutritional requirement, by consuming other organisms (heterotroph) or making its own food (autotroph)
Explanation:
i beleve this is what you where asking :)
What is salinity and how does it change?.
A balance between water withdrawn by evaporation and freshwater added by rivers and rain controls salinity. The Mediterranean Sea in Europe has a salinity of 38 parts per million or more. It's nearly cut off from the main ocean, and there's more evaporation than rain or additional freshwater from rivers.
Describe the different internal and external factors that affect human health.
Answer: Biology, psychology, emotions, spirit, energy, lifestyle, culture, economic and political influences, social interactions in family, work, living area and the possibilities to expresses oneself and live full life with a sense of well-being have influence on people appearances.
Explanation: