After one half-life, there would be 10 g of the material left.
After two half-lives, there will be 5 g of the material left.
Therefore, 5 grams is the correct answer.
What is the unit of grams?The basic unit of mass or weight in the metric system is the gram. The most frequently used units of mass or weight used in the Canadian food industry are the gram and kilogram. Some of the types of grams are:-
Unit Abbreviation Mass (Weight)
kilogram kg 1000 grams
hectogram hg 100 grams
decagram dag 10 grams
gram g 1 gram
Therefore, last option is the correct answer.
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PLEASE ANSWER I NEED HELP
Answer:
this would be B
Explanation:
a oceanic crust is denser than a continental crust
Two-Part Question: Which of the following
isotopes is best suited to determining the age of a Coelophysis fossil AND does any isotope follow
the relationship described in the graph above (yes -or- no)?
(A) carbon-14 (yes)
(B) potassium-40 (yes)
(C) carbon-14 (no)
(D) potassium-40 (no)
What best describes the role of molecular oxygen (O2) in cellular respiration? A. It is accepts electrons when reacting to form water. B. It combines with carbon and hydrogen to form glucose. OC. It is released when water breaks apart. D. It is released when glucose breaks apart. OE. It reacts to form carbon dioxide and water.
Answer:
D. It is released when glucose breaks apart.
Explanation:
What are the traits or an organism called ?
Answer:
Explanation:
The observable traits expressed by an organism are referred to as its phenotype. An organism's underlying genetic makeup, consisting of both physically visible and non-expressed alleles, is called its genotype.
A fossil of an extinct dinosaur is found, and the anatomy of the fossil shows similarities to that of a bird.
What possibly explains these similarities?
A. This is purely chance and isn't significant.
B. The extinct dinosaur and modern bird share a common ancestor.
C. All dinosaurs evolved into birds and that's why there aren't any dinosaurs alive today.
D. Dinosaurs choose to fly, and evolved into birds to escape predation and capture food.
Answer:
B sounds like a sensible choice
Explanation:
The extinct dinosaur and modern bird share a common ancestor. So the correct option is B.
What are evolutionary relationships?
Systematics, taxonomy, phylogenetics, and evolution are the four approaches used to investigate evolutionary connections. The branch of science known as systematics is concerned with classifying species and figuring out their relationships. It has two primary branches that may be separated:
Organisms are classified, given names, and grouped in taxonomy. A population, species, genus, or higher-level grouping like a family, order, class, phylum, kingdom, or domain can all be considered as a group or taxon. The word taxon is pluralized as taxa. The determination of evolutionary links or patterns of descent of species is via the study of phylogenetics.
The species of living things that exist now are all descendants of earlier ones. This is the result of evolution or merely time-related change. Branching evolutionary trees can be used to illustrate the evolutionary links between ancestors and their offspring. An evolutionary tree shows which ancestors gave rise to which descendants, much like your family tree does.
Therefore the correct option is B.
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6. In a non-competitive environment what is the result of a catastrophic disturbance? I
Answer:Ecologists generally distinguish between relatively small, frequent disturbances and large, infrequent, so-called "catastrophic" disturbances. ... Examples of the large, infrequent disturbances include volcanic eruptions, hurricanes, and major wildfires
Explanation:
Answer:
They typically cause a sudden decrease in population size, and in some cases may eliminate entire subpopulations
Explanation:
Where do majority of tornadoes occur in the United States?
Answer:
central united states
Explanation:
mainly in this area because of cold air coming in from canada and warmer air coming from the gulf of mexico meeting and causing tornados.
Answer:
A majority of tornadoes that occur in the United States, occur in the Midwest and Southeast region of the United States.
Explanation:
Tornadoes can impact just about every U.S. state, but the majority of these storms are concentrated in states throughout the Midwest and Southeast. In fact, of the average 1,137 tornadoes that occur in the United States each year, 64% of them form in states located in “Tornado Alley” and “Dixie Alley”, two regions with a disproportionately high frequency of tornadoes due to atmospheric conditions that persist for long stretches of the year.
With an average of 140 tornadoes annually, Texas is the most tornado-prone state in the U.S., followed by Kansas with 80 and Florida with 59, according to National Oceanic and Atmospheric Administration data.
Top five states with the most tornadoes
Texas - 140
Kansas - 80
Florida - 59
Oklahoma - 56
Nebraska - 54
Bottom five states with the least tornadoes
Alaska - 0
Hawaii - 0
Rhode Island - 0
Delaware - 1
Idaho - 1
The coordinates of the vertices of a polygon are shown below.
M(–1, 3), N(–4, 0), O(–1, –3), P(3, –3), Q(4, 0), R(3, 3)
What type of polygon is this figure?
Answer:
a hexagon
Explanation:
since it has six sides
NEED FAST PLS!!! which option identifies the argument refuted in the following scenario?
Lucy possesses a gene for melanoma she chose has to stay out of the sun
A. genetic information is purely internal influenced
B. dominant traits are always passed from parent to child
C. genes are incapable of mutation during transference
D. it is impossible to partially inherit a genetic trait
Answer:
D. it is impossible to partially inherit a genetic trait
Explanation:
Plz help me well mark brainliest if you are correct!
Answer is in a photo. I can only upload it to a file hosting service. link below!
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Answer:
C. Ecology.
Explanation:
The scientific study of the distribution and abundance of living organisms.
Which cause of climate change can cause the Earth to get colder? Explain how.
The tilt in the axis of the Earth is called its obliquity. This angle changes with time, and over about 41 000 years it moves from 22.1 degrees to 24.5 degrees and back again. When the angle increases the summers become warmer and the winters become colder.anation:
I'LL GIVE BRAINLIST
What advantages does wifi applications of waves have over the previous technology?
Disturbances in memory, consciousness, or identity are symptoms of:
A. affective disorders.
B. anxiety disorders.
C. dissociative disorders.
D. somatoform disorders.
Disturbances in memory, consciousness, or identity are symptoms of dissociative disorders. Thus, option C is correct.
What is wellness?The term wellness is defined as the characteristic or quality of being in good and finer health, mental, as well as social well being. Wellness is basically being in bestest physical and mental as well as social health.There are several types of wellness which includes spiritual wellness in which people feel to sacrifice for the love of the nation, and for others too.
Emotional wellness is the main type of wellness that applies to awareing and accepting the reaction of people. Physical wellness is the type of wellness in which you are physically fit and healthy and free from diseases. Multiple disorders has been includes the affective disorders, anxiety disorders, dissociative disorders, and somatoform disorders are found in many people and these leads to serious health issues.
Therefore, Disturbances in memory, consciousness, or identity are symptoms of dissociative disorders. Thus, option C is correct.
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1: Can The environment determines all physical features on plants?
2: Can The environment can affect physical features on plants?
No links!!!
Answer: When said that he was the one
Explanation: the first sentence is the nice loot
what is the strongest known poison that is undetectable completely
Answer:
The strongest known poision that is undectable completely are:
Arsenic,Cyanide, Thallium
2. Which of the following is not used to study plate tectonics:
A) paleomagnetism
B) earthquake waves
C) sand dunes
D) fossils
Answer:
c) sand dunes
What are the three parts of a neucleotide
Each nucleotide, in turn, is made up of a nitrogenous base, a pentose sugar, and a phosphate.
Tortoises found on the Galapagos Islands can have varied phenotypes. One of the variations in the phenotypes is with regard to
their shells. They can have a domed shell with a hood above the head. The shells without domes lack the hood above the head,
such that the tortoise's neck is always pointing downward. A group of evolutionary biologists studied the tortoise population for
generations on these islands. The study coincided with a severe drought in the area that lasted many years. The data for the
changes in tortoise shell shape is shown here. Evaluate the data and select the statement that is best supported by this data.
Answer: B:The drought decreased the grass and vegetation on the ground, leaving only vegetation on shrubs and trees above the ground. Natural selection selected for the tortoises with the domed shells and hoods.
Explanation:
Answer: b
Explanation:
1 pts
Question 9
Which of these is an example of biomass energy?
O A coal-burning generator.
O A gasoline-burning automobile.
O A wood-burning stove.
O An automobile that operates on fuel cells.
what does Ecosystem mean ?
Answer:
ecosystem: all the living and nonliving things interacting in a particular area
Explanation:
Please check this for me
Answer:
T
Explanation:
I think you have it right...while panic attacks can happen for no reason (no stimulus), anxiety attacks usually happen for a reason.
Answer:
TRUEE! GOOD JOB :) HAVE A GOO DAY
Explanation:
Help plsssss asapppppppp
1.What we call the maintenances of constant internal environment of organisms? __________________________
2. Animals which control their body temperature at constant state regardless the changes of external temperature are known as ______________
3. What is the organ in our body which is used as an excretory organ and also used as an organ of osmoregulation?
________________
4. What is the part of the kidney from which urine is taken through the ureter?
_____________________
5. The structural and functional units of the kidney is _______________________.
Answer:
1. homeostasis.
2.Endotherm (warm-blooded animals).
3.kidneys
4.renal pelvis
5.nephron.
Please please please help me FAST
FAST
Answer: Mollusks
Explanation:
I think
Answer:
QUESTION:
Please please please help me FAST FAST
ANSWER:
Squid are members of the class Cephalopoda, subclass Coleoidea. The squid orders Myopsida and Oegopsida are in the superorder Decapodiformes (from the Greek for "ten-legged").
Class: Cephalopoda
Phylum: Mollusca
Subclass: Coleoidea
Superorder: Decapodiformes; Leach, 1817
Explanation:
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Explain what is diffusion and osmosis? Why are they Important to the cell? Explain one example of active transport in the cell. Write a paragraph (5-7 sentences).
-if you help I really appreciate you!
Answer:
Diffusion and osmosis are both passive transport processes that act to equalize the concentration of a solution. In diffusion, particles move from an area of higher concentration to one of lower concentration until equilibrium is reached. Significance of Diffusion and Osmosis Both diffusion and osmosis are really important as these ensure the equalization of forces inside cells and also inside an organism as a whole by spreading all the necessary chemicals and nutrients from highly concentrated area to the low concentration area inside an organism. The intake of water in plants is an example of osmosis. Diffusion is observed when a drop of food coloring is added to a glass of water, where eventually, the entire water content becomes colored.
Brainliest please!
Which type of mining is likely the least harmful to the environment?
Answer:
Placer mining can be less damaging to the environment than surface mines, as the sediment is returned to the water after the minerals have been extracted.
Explanation:
PLEASE HELP !! ILL GIVE 40 POINTS ; PLUS BRAINLIEST !! DONT SKIP ANSWER.
Answer:
d
Explanation:
Can anyone help me out here? This is the final question I have to do, and it is really hard and it is due at 5:00!
Answer:
number 1 is the sun and number 2 is 98.8
Explanation:
17 Based on the graph, what is the approximate number of radioactive atoms of Isotope X that are
present when 8 hours of decay has occurred?
(A) 90
(B) 115
(C) 155
(D) 200
What influences other than humans affect genetic drift in populations?
Answer:
Every population experiences genetic drift, but small populations feel its effects more strongly. Genetic drift does not take into account an allele's adaptive value to a population, and it may result in loss of a beneficial allele or fixation (rise to 100% frequency) of a harmful allele in a population.
Explanation:
When plants that are true breeding for different traits of a
characteristic are crossed, the trait observed in the first generation
is called the
a. dominant trait.
b. recessive trait.
c first-generation trait.
d. second-generation trait.
