The correct answer is the last option which states that Substance A moved into the cells before death.
This is because, Substance A requires cellular energy in order to transfer into a cell. This occurs through a process called active transport. Active transport in cellular biology refers to the movement of molecules or ions across a cell membrane against the concentration gradient from a location of lower concentration to a region of higher concentration. Cellular energy is needed for active transport in order to achieve this movement. After death, the chemical reactions that produce energy in the body stop. Hence, this process can only take place when a person is living.The forensic scientist found the same substance A and not it's decomposed constituents in the cell. Moreover, passive transport cannot take place since Substance A requires energy for transport. So, the other options are incorrect.Hence, the scientist can reasonably conclude that Substance A moved into the cells before death.
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State that ecosystems have the potential to be sustainable over long periods of time.
Answer:
Ecosystems have the potential to be sustainable over long periods of time. Something is sustainable if it can continue indefinitely depending on nothing but itself. The concept has become increasingly well-known as it has become evident that current human uses of resources, mostly fossil fuels, are unsustainable.
Explanation:
hope it helps, please mark as brainliest
A region where the flora, fauna and microorganisms together with the abiotic factors live together is called an ecosystem.
The ecosystem has a flow of energy and nutrients. Ecosystems have the potential to sustain over a longer duration.
Sustainability is a source or resources that can be used indefinitely without compromising future needs.
The nutrient cycle of the ecosystem can be recycled but the energy flow of the system cannot be.
If the particular ecosystem can maintain its function and structure over some time will be sustainable.
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+PLEASE HELP ASAP DUE 20 MINUTOS i
I WILL give BRAINLIST:;)))
Answer:
UM No
Explanation:
Plants and animals must have the element nitrogen because it is an important
component of nucleic acids and proteins.
How do these organisms obtain nitrogen?
A
Plants and animals get nitrogen directly from the air the same as
they do oxygen.
B
Bacteria get nitrogen from the air, and plants and animals get
nitrogen by eating the bacteria.
C
Nitrogen fixing bacteria convert nitrogen from the air into ammonia,
and animals ingest the ammonia.
D
Bacteria in the soil convert nitrogen from the air into a form that
plants can use, and animals get nitrogen by eating the plants.
Answer:
nitrogen fixing bacteria
these organisms obtain nitrogen, Nitrogen fixing bacteria convert nitrogen from the air into ammonia and animals ingest the ammonia.
what are the role of nitrogen fixing bacteria ?
Nitrogen fixation occur by a bacteria called nitrogen fixing bacteria during nitrogen cycle.
nitrogen-fixing bacteria are the microorganisms that provide plants with the vital nutrients and it can't be obtained from the atmosphere (air).
nitrogen-fixing bacteria are responsible for the conversion of atmospheric nitrogen to ammonia during nitrogen cycle can be taken up by plants.
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SOMEONE PLEASE HELP ME PLEASE!!!!!!!!!!!!!!!!!!?!!!!!
Answer:
the correct answer is "C. 4"
Explanation:
The nucleus is a double-membraned organelle found in all eukaryotic cells. It is the largest organelle, which functions as the control center of the cellular activities and is the storehouse of the cell’s DNA. By structure, the nucleus is dark, round, surrounded by a nuclear membrane.
Meiosis is a process in which the number of chromosomes per cell is cut in half through the separation of homologous chromosomes in a diploid cell. Meiosis usually involves two distinct divisions called meiosis I and meiosis II. By the end of meiosis, a single diploid cell has produced four haploid cells.
After interphase I, the cell begins to divide, and the chromosomes pair up. In prophase 1 of meiosis, each replicated chromosome pairs with its corresponding homologous chromosome. This pairing forms a structure called a tetrad, which contains four chromatids. As the chromosomes pair, they sometimes undergo a process called crossing-over.
Which is a true statement of crossing-over?
A. Homologous chromosomes move to opposite ends of dividing cells
B. During crossing-over, bits and pieces of the homologous chromosomes are exchanged
C. The DNA of the diploid cell is copied
D. Crossing over decreases genetic diversity
Answer:
B.
Explanation:
D is wrong because it Increases gentetic diversity
C we are talking about the chromosome not the cell
A That is later on in telophase I
what is the state of a object when not have net force
why are casts, molds, and trace fossils so common?
Answer:
Cast fossils occur when mold fossils are filled in with minerals that harden over time, creating a fossilized replica of the original organism. Water seeps through the rock surrounding the mold fossil, leaving behind minerals which fill the mold. Any mold fossil can potentially form a cast mold.
Explanation:
Answer:
Cast fossils occur when mold fossils are filled in with minerals that harden over time, creating a fossilized replica of the original organism. Water seeps through the rock surrounding the mold fossil, leaving behind minerals which fill the mold. ... Any mold fossil can potentially form a cast mold
Explanation:
pls make me brainliest
pls help im struggling i’ll give branliest
Its d if not im so very sorry
A. How does a hot-spot supervolcano (such as Yellowstone) form? (5 points)
B. What type of volcano is Mount Saint Helens? (2 points)
C. How is the formation of this type of volcano different than that of a hot-spot volcano?
(6 points)
When plants need to store the extra glucose they make during photosynthesis, they join the glucose molecules together to make
Answer:
Plants store glucose in the form of starch a polysaccharide
Explanation:
Performed by autotrophs.
Select one:
a. Cellular Respiration
b. Both Photosynthesis and Cellular
Respiration
c. Neither Photosynthesis nor Cellular
Respiration
d. Photosynthesis
SOMEONE PLEASE HELP ME WITH THIS PLEASE PLEASE PLEASEE!!!!!!!!!!
Answer:
C is the answer for the question
postcranial changes in hominins that indicate bipedal locomotion include group of answer choices shortening and broadening of the ilium of the pelvic girdle increased length of arms relative to legs feet with opposable big toes for grasping all of these answers are correct
Option A: Postcranial changes in hominins that indicate bipedal locomotion include shortening and broadening of the ilium of the pelvic girdle.
Around 3 million years ago, bipedal locomotion in early hominins turned to be more effective. This adaption made the hominins more stable to hold their weight and walk upright. It also helped them to see longer distances in the green forests areas. They could take the advantage of hunting their food or protecting them from harmful predators. Adapting bipedal location expended lesser energy, thus allowing hominins to walk longer distances.
Over many generations now, bipedal location turned out to develop stronger and longer legs and feet so as to allow running and holding more weights. Additionally, the arms turned to be more adapted to hold the heavier things efficiently and to carry their newborns effectively.
Owing all these changes, adaption made to this kind of locomotion include shortening and broadening of the ilium of the pelvic girdle and developed a bowl-shape structure.
Thus, option A is the correct answer.
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which of the following is an example of an abiotic limiting factor on population size
a)water availability
b) predation
c)disease
d)availability of food
Answer:
It is A
Explanation:
A
Mary Jane’s red hair is a recessive trait. If Peter is heterozygous for hair color, what is the chance their baby will have red hair?
1/4
2/4
0
3/4
Answer:
2/4
Explanation:
If you know how to do a punnet square then you should use it, but if not then this is how you do it: (look at the document below)
*
Which sequence of energy transformation is happening in this image?
Write a lab report for this lesson’s lab. Be sure that your report:
includes all major elements of a lab report.
meets your teacher’s content and format expectations.
is clearly organized and formatted.
demonstrates strong scientific reasoning and writing.
While writing, you can revisit previous parts of the lesson by returning to the course map. Be sure to refer to the
lab’s student guide, which you can find on the first page of the lab experiment activity. You may also find it
helpful to refer to the remaining pages of this guide, which provide general guidelines for writing lab reports.
Here is the example of Lab Report: Photosynthesis which has all the points.
Aim of experiment - What is the aim of this lab? What query is it looking to solution, or what hassle is it looking to explain? Write your solution below.HypothesisAfter studying the lab instructions - however earlier than beginning the lab - report your best "knowledgeable guess" approximately what is going to manifest withinside the experiment. Give your motives and description any assumptions that lead you to this hypothesis. Write your solution below.Experimental DesignMaterial used on this lab, and a short rationalization of the strategies you followed. (You do now no longer want to retype the procedure; really summarize your strategies). Add #'s wherein necessary.Procedure (listing steps withinside the order in that you carried out them)Record the facts you accumulated withinside the lab. Answer all the questions below.Experiment 1 Data and Observations: 1. Record the preliminary pH fee of the water withinside the beaker:Record the pH fee of the water withinside the beaker at:Record the conduct of the sparkling splinter after its located withinside the take a look at tube.Note the result.What is lab report ?Lab reviews are written to explain and examine a laboratory test that explores a systematic concept. They are normally assigned to allow you to: Conduct clinical research. Formulate a hypothesis/hypotheses approximately a specific stimulus, event, and/or behaviour.
Thus it is well explained.
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lol I have a test ill post all the questions here sorry guys... PLEASE HELP!
This process results in DNA being duplicated
Transcription
Translation
DNA Replication
A and B
Answer:
DNA Replication
Explanation:
the chemical formula for water is
Answer:
H20
Explanation:
please Mark me brainliest
The chemical formula for water is H2O
the small intestine is at the same level of organization as which of the following heart, connective tissue, digestive system, or epithelial cell?
Answer:
Heart
Explanation:
They are both organs, everything else is too big or too small.
The small intestine is at the same level of organization as the heart. The correct option is a.
What is the level of organization?The body is divided into different levels of the organization. These levels of organization are cellular level, tissue level, organ, organ system, and organism.
At the cellular level, the cell is the base unit of life. At the tissue level, the cells joined and compose tissues. At the organs level, tissues are joined to make organs, and many organs form an organism.
The small intestine and heart are organs, so they come in the same level of organization. The organ. The digestive system comes from the organs system and epithelial cell comes at the cellular levels. Connective tissue comes under tissue level.
Thus, the correct option is a. heart.
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When is now-casting used?
15 days from now
Severe Weather Events
Clear Sky Days
Sunny Days
Answer:
Severe Weather Events
Explanation:
JUST TOOK THE QUIZ
Now-casting is most commonly used during severe weather events to provide up-to-date information and warnings.
Now-casting is a type of short-term weather forecasting that focuses on the current and immediate future weather conditions, typically up to a few hours or a few days ahead. It is used to provide real-time updates and predictions for weather events that are occurring or expected to occur in the near term.
Now-casting is commonly employed during severe weather events such as thunderstorms, hurricanes, tornadoes, or heavy rainfall. It helps meteorologists monitor the current conditions, track the progression of the weather system, and issue timely warnings or advisories to the public.
While it may also be employed during clear sky days and sunny days, its focus is primarily on dynamic weather situations and short-term forecasts rather than stable weather patterns.
Therefore, now-casting is most commonly used during severe weather events to provide up-to-date information and warnings.
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explain the role of diaphragm in the process of breathing
Answer:
The diaphragm muscle contacts and relaxes to force the intake and expulsion of air from the lungs.
Explanation:
The diaphragm is a large, dome-shaped skeletal muscle. It is very thin, and is located at the base of the chest just above the abdomen. It plays a very important role during respiration or breathing by forcing the intake and expulsion of air from the lungs.
During inhalation, this muscle contracts, and flattens- in the process, a vacuum is created, effectively pulling air into the space. In exhalation the muscle relaxes, and is no longer flattened, this reduces the volume of the region, forcing air out of the lungs. These contractions occur rhythmically and continuously.
How many copies of chromosomes do gametes contain?
one
two
three
none
Human cells that contain one set of 23 chromosomes are called gametes, or sex cells; these eggs and sperm are designated n, or haploid. The matched pairs of chromosomes in a diploid organism are called homologous chromosomes.
Answer: Its 1
Explanation:
Write names (3 letters) of the amino acids according to the following code:
AUG-GUU-AGG-CCA-UAU-UGA
Answer:
MET-VAL-ARG-PRO-TYR
And UGA is stop
Explanation:
I study it in Swedish but i do not know if it is the same thing in English as well .
The _______ is responsible for maintaining homeostasis within any cell
Answer: Cell Membrane
Answer:
cell membrane
Explanation:
The structure most responsible for maintaining cell homeostasis is the cell membrane.
Why would you answer your own question lol
When an earthquake occurs, S waves are the first seismic waves to arrive at a given location. Please select the best answer from the choices provided T F
Answer:
False
Explanation:
S -waves are not the first set of waves to arrive at a seismic station after an earthquake event has occurred
These waves are the second set of waves to be picked up at a seismic recording station.
S - waves are shear or secondary waves. They are the second to arrive at a seismic station. P - waves are the fastest waves with the greatest velocity. They are the first set of waves to arrive at a seismic station. P - waves are simply longitudinal waves and they are the fastest elastic waves.Answer:
false your welcome
Explanation:
A biological community and the physical environment associated with it is called the
Answer:
ecosystem
Explanation:
help me with this question please!!
Answer
the first choice
Explanation:
define terrestrial planets:
please help i need to submit it soon
Answer:
The planets like Mercury, Venus, Earth, and Mars, are called terrestrial because they have a compact, rocky surface like Earth's terra firma.
Where is ATP produced in the cells during cellular respiration?
O Golgi bodies
mitochondria
O nucleus
O ribosomes
Answer: b mitochondria
Explanation: