Suppose 128 radioactive atoms have a half-life of 15 seconds. Approximately how
many radioactive atoms will be left after 30 seconds?
A.64
B.32
C.16
D.8
Answer:
the number of radioactive atoms will be left after 30 seconds is
D. 8 EIGHT
A bell rolling across the foor keeps moving until it is stopped by friction. This example demonsszes
the work prindide
Newton's Second Law of Motion
Newton's Third Law of Motion
Nentor's First Law of Motion
How cells make proteins quick check. Select the statement that is true
Answer:
In order for a cell to manufacture these proteins, specific genes within its DNA must first be transcribed into molecules of mRNA; then, these transcripts must be translated into chains of amino acids, which later fold into fully functional proteins.
In order for a cell to manufacture these proteins, specific genes within its DNA must first be transcribed into molecules of mRNA; then, these transcripts must be translated into chains of amino acids, which later fold into fully functional proteins.
What are proteins?The protein molecules that the genes in DNA encode are the "workhorses" of the cell, performing all the tasks required for life. Proteins include, for instance, DNA polymerases and other enzymes that produce copies of DNA during cell division, as well as enzymes that metabolize nutrients and synthesize new cellular components.
The simplest definition of gene expression is the production of the gene's corresponding protein, and this complex procedure involves two main phases.
Transcription is the process by which the data in DNA is converted into a messenger RNA (mRNA) molecule in the initial phase. A pre-mRNA molecule is formed during transcription by an enzyme called RNA polymerase II using the DNA of a gene as a template for complementary base-pairing.
Therefore, In order for a cell to manufacture these proteins, specific genes within its DNA must first be transcribed into molecules of mRNA; then, these transcripts must be translated into chains of amino acids, which later fold into fully functional proteins.
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What mommy yes are used to build the sugar in photosynthesis. Multiple choice PLEASE AND THANKYOU
carbon dioxide
none of these
oxygen
water
6 moles of carbon dioxide and water are used to synthesize 1 mole of glucose, in photosynthesis
6 CO2 + 6 H2O + Solar energy ----> C6H12O6 + 6 O2
5. Predicting: Suppose you went on a run on a hot day in August. You did not drink a lot of water
beforehand. How would this affect your urine formation
Where do light bulbs get their energy from?
Answer:
Light bulbs gets the energy from electricity which makes it light up.
true or false
ATP is the primary source for energy for cells.
Answer:True
Explanation:The mitochondria is the powerhouse of the cell and it converts chemicals that you get from food into ATP. ATP is then shipped out and used for energy. Hope this helps:D
Plz help I need help
Answer:
cell wall is absent in
human
butterfly
shark
During the process of fertilization and pregnancy, which becomes implanted on the uterine wall? (1 point)
gamete
O sperm
Oblastocyst
embryo
Answer:
That is C.) blastocyst. I hope this helps! :)
During pregnancy after fertilization, the embryo gets implanted in the uterine wall. So the correct option is D.
What is an embryo?The embryo is the stage of an animal's early development when it is within an egg or a mother's uterus. When referring to an unborn person, the phrase is used up to the end of the seventh week after conception; starting with the eighth week, the term "fetus" is used.
When an ovum and a sperm unite to form a sexually reproducing organism, the outcome is a zygote, or fertilized egg, which goes through a series of divisions known as cleavages as it travels down the fallopian tube. A hollow ball known as a blastula is created by the cells following many cleavages.
In most animals, the blastula adheres to the uterine lining, causing the placenta to develop and begin supplying the developing fetus with nourishment from the mother. The yolk feeds the embryo in lower animals.
The embryo differentiates into three types of tissue through the process of gastrulation: the ectoderm, which produces the skin and nervous system; the mesoderm, from which connective tissues, the circulatory system, muscles, and bones develop; and the endoderm, which produces the digestive system, lungs, and urinary system.
Therefore the correct option is D.
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Plz help I need help
Answer:
chloroplast
Because of where and how it was made
2. How are the atmosphere, hydrosphere, and lithosphere related in the
biosphere?
Answer:
For example, rain (hydrosphere) falls from clouds in the atmosphere to the lithosphere and forms streams and rivers that provide drinking water for wildlife and humans as well as water for plant growth (biosphere). River action erodes banks (lithosphere) and uproots plants (biosphere) on the riverbanks.
Explanation:
Hope this helps.
Rewrite the new sequence after the deletion of the "G" in position 3:
CCG.....UAG..... GUC.....CUG
Deletion is just the removal of one of the nucleotides. Therefore, the new sequence would be:
CCU...AGG...UCC...UG
(Basically everything moves over one)
Sciences use the science called blank to classify organisms based on how they are blank
Answer:
Taxonomy (which literally means “arrangement law”) is the science of classifying organisms to construct internationally shared classification systems with each organism placed into more and more inclusive groupings
Explanation:
Hope it Helps :P
Identify and investigate the properties of minerals. Identify and classify a variety of rocks.
based on physical characteristics from their origin, and explain how they are related using the
rock cycle. (i.e. Sedimentary, igneous, and metamorphic rocks)
Answer:
Igneous rocks are classified on the basis of their composition and their texture. Magma, and the igneous rock it becomes, has a range of chemical compositions. For example, basalt is a mafic lava flow rock which originates from melting of the upper mantle.
Explanation:
Answer:
There are three main types of rocks: sedimentary, igneous, and metamorphic. Each of these rocks are formed by physical changes—such as melting, cooling, eroding, compacting, or deforming—that are part of the rock cycle. Sedimentary rocks are formed from pieces of other existing rock or organic material.
Explanation:
Hope This Helps!
What’s everyone’s favorite tv show or movie?
I dont watch tv shows or movies
lol
Identify organelles in a plant cell with the diagram below.
Answer:
A - cloroplast
b- vacuole
c- cell wall
d- nucleus
Explanation:
I found the same picture online. I just looked up organelles in a cell plant and it was one of the first ones
Answer:
A - cloroplast
b- vacuole
c- cell wall
d- nucleus
Explanation:
i got the answers from this image (kepp this image because it might also help you) and please brainlest
plz help and no links
Multicellular plants and animals have organs to perform specific functions.
What do eukaryotic cells have to perform specific functions?
A.cytoplasm
B.ribosomes
C.organelles
D.vacuole
Answer:
Organelles
Explanation:
Answer:
organelles
Explanation:
yeeeeeeeeeeee
which selective is a characteristic of both living and non living thing? metabolism, cells, energy, or subatomic particles?
Answer:
The same atoms and subatomic particles can be found in both.
Carbon dioxide is released as a byproduct of cellular respiration. Which one of these products is also formed during the metabolic reaction of cellular respiration? (B.9B)
Question 16 options:
Water
Glucose
Sucrose
Oxygen
The product that is also formed apart from the carbon dioxide during the cellular respiration process is water. The correct option is A.
What is cellular respiration?Cellular respiration is the process by which biological fuels are oxidized in the presence of an inorganic electron acceptor such as oxygen to produce large amounts of energy, which is then used to drive ATP production.
Cellular respiration is the process by which cells in plants and animals convert sugar into energy, which is then used to perform cellular work.
The goal of cellular respiration is straightforward is that it provides cells with the energy they require to function.
Carbon dioxide and water are the byproducts of cellular respiration. Carbon dioxide is exhaled from your lungs after being transported from your mitochondria to your red blood cells. ATP is produced during the process.
Thus, the correct option is A.
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I- what is epitope? II- what is virus? a living organism? why? types of virus? classification of Corona virus. III- what is vaccine? purpose of vaccination? goal, in terms of immunity? what is Pfizer vaccine? how does it work? please I will need your help thanks
Answer:
1.the part of an antigen molecule to which an antibody attaches itself.
2.A virus is an infectious agent that can only replicate within a host organism. Viruses can infect a variety of living organisms, including bacteria, plants, and animals. Viruses are so small that a microscope is necessary to visualize them, and they have a very simple structure.
3. Vaccination is a simple, safe, and effective way of protecting you against harmful diseases
immunity: Protection against a disease
C0VID-19 mRNA vaccines give instructions for our cells to make a harmless piece of what is called the “spike protein.” The spike protein is found on the surface of the virus that causes C0VID-19. First, C0VID-19 mRNA vaccines are given in the upper arm muscle.
Explanation:
Explain the term “soil profile” (needs to be a paragraph)
Answer:
A soil profile is a vertical section of soil
Explanation:
Which galaxy will collide with the Milky Way in several million years? (1 point)
O Large Magellanic Cloud
O Local Group
O Andromeda Galaxy
O Sagittarius Dwart Galaxy
Answer: The Andromeda galaxy
Explanation:
And that's going to happen someday! The Andromeda galaxy is currently racing toward our Milky Way at a speed of about 70 miles (110 km) per second. Ultimately, the two galaxies will collide and merge.
Andromeda Galaxy collide with the Milky Way in several million years. Thus option C is correct.
What is Andromeda galaxy ?The Andromeda Galaxy (M31) which is the closest large galaxy to the Milky Way.
Around 4.5 billion years both Andromeda Galaxy and the Milky Way may be collide and form a giant elliptical galaxy.
Andromeda consist of 14 dwarf galaxies, M32, M110, and M33 galaxy.
It is supposed to Andromeda is the largest galaxy in the Local Cluster and most massive due to more dark matter in milk way galaxy.
Most of the astronomers use this Andromeda Galaxy to understand the origin and evolution of the galaxy.
This Galaxy called spiral galaxy has double nucleus, has massive stars, dust and one supermassive black hole hidden at the core region.
Thus option C is correct.
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(FREE PONTS! JUST COPY AND PASTE THE ANSWER BELOW )
In which stage of the Calvin cycle does the plant cell produce energy for storage?
A. Regeneration
B. Carbon Fixation
C. Reduction <
This is the correct answer (COPY AND PASTE)
Reduction
Answer:
reduction
Explanation:
Answer:
CARBON FIXATION
Explanation:
cuales son los efectos del compost en el crecimiento de la lechuga
Answer:
Los resultados mostraron que el compost orgánico producido presentó características físico-químicas y microbiológicas dentro de los rangos de utilización agronómica y su adición en el sustrato de fibra de coco, favoreció la producción de lechuga, promoviendo un incremento de 63% en la altura de plantas
Explanation:
Wastewater treatment plants can make wastewater drinkable again. Which of
the following is a technology used to remove solids from the water?
O A. Treating the water with certain bacteria and air
O B. Shaking and skimming them from the surface of the water
O c. Adding hydrochloric acid and chlorine to the water
O D. Filtering and allowing them to settle out of the water
SUBMIT
Answer:
D
Explanation:
I'm not 100% sure this is right but it's a better answer than B
-- How do scientists predict the weather over our future?
The Short Answer:
To predict future climate, scientists use computer programs called climate models to understand how our planet is changing. Climate models work like a laboratory in a computer. ... Scientists use computer programs called climate models to understand how our planet is changing.
What role does concentration gradient play in movement across a cell membrane
in active transport?
Transport across a cell membrane is a tightly regulated process, because cell function is highly dependent on maintain strict concentrations of various molecules. When a molecule moves down its concentration gradient is it participating in passive transport; moving up the concentration gradient requires energy making it active transport.
approximately_____ element's occur naturally on earth
Answer:
approximately chemical elements naturally occur on earth
Answer:
About 92 I believe
Explanation:
which scientist was responsible for disproving the theory of spontaneous
Answer:
Louis Pasteur
Explanation:
How would the equilibrium change if the ocean became more acidic?
Answer: more H2CO3 is made
Explanation:
Acidic water of the ocean creates instability in the ocean ecosystem.
What happens when ocean become acidic?If the acidity of ocean increases the corals can't build skeletons and the shellfish also can't build the shells which they need for protection.
Corals are particularly important because they provide homes for many other sea creatures so we can conclude that acidic water of the ocean creates instability in the ocean ecosystem.
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