allergic reaction thats why
chromium-48 has a half-life of is 21.6 hrs.How long will it take 360.00 g of chromium- 48 to decay to 11.25g?
Answer:
Half - Life. Name. Date. 1. The half-life of cobalt-60 is 5.26 years. If 50g are left after. 15.8 years ... If 25g are left after 40.35 days, how ... If the half-life of iodine-131 is 8.10 days, how long will it take a. 50.00 g ... Chromium-48 has a short half-life of 21.6 hours. How long will it take 360.00 g
Explanation:
Write a hypothesis about the worms and lima bean plants. Be sure to answer the lab question, “How can the presence of one species benefit another in the same ecosystem?”
Hypothesis: If plants are grown in soil containing worms, then . . .
Answer:
A decomposing creature can decompose the bad items from a plant such as maybe dead leaves this would benefit the plant and the worm so their relationship would be considered Mutualism
Explanation:
The worm is a decomposing creature so it decomposes things like dead bugs and dead leaves and other items.
The relationship between the worm and plant is a mutual relationship because they are both being benefitted.
Of course, you will need to reword this answer but you may use it!
ヽ(^◞ ^)ﾉExplanation: I got it correct.
Answer:
What are two methods of preventing floods
Explanation:
Vegetation
Trees, shrubs, and grass help protect the land from erosion by moving water.
Install water infiltration and attenuation systems
Which of the following is NOT a chromosome mutation?
a. Frameshift
b. Nondisjunction
c. Inversion
d. Translocation
Answer:
Nondisjunction
Explanation:
Watersheds can vary in size?
True
False
Answer:
it is true. Watersheds can be as small as a footprint or large enough to encompass all the land
Which food chain shows the path of energy through individuals in the pyramid? PLSSSSSS I NEED HELPPPP :PPPPP
Answer:B
Explanation:
The movement of air caused by unequal heating
Answer:
Wind is the movement of air, caused by the uneven heating of the Earth by the sun and the Earth's own rotation. Winds range from light breezes to natural hazards such as hurricanes and tornadoes
Subject: Science
Which statement best describes how the phase of the Moon changes from a full moon to a new moon?
O A. Earth moves around the Sun until the Moon is between the sun and Earth,
O B. Earth moves around the Sun until Earth is between the Sun and the Moon
O C. The Moon moves around Earth until Earth is between the Sun and the Moon.
O D. The Moon moves around Earth until the Moon is between the Sun and Earth.
The messenger RNA codes for six different amino acids are shown in
the table.
In on type of mutated gene for hemoglobin, CTC in the DNA code was
replaced by CAC. What amino acid substitution has taken place in the
mutated hemoglobin?
Select one:
a. Valine has replaced glutamic acid.
b. Cysteine has replaced glutamic acid.
c. Serine has replaced leucine.
d. Arginine has replaced leucine.
Answer:
A. Valine has replaced glutamic acid
Explanation:
hope this helps:)
what is the difference between DNA and RNA
Answer:
DNA is double-stranded, RNA is single-stranded. DNA has the base Thymine, RNA replaces it with Uracil. DNA has deoxyribose sugar, RNA has ribose sugar.
Explanation:
what is a DNA
what does DNA stand for
Answer:
Deoxyribonucleic acid is a molecule composed of two polynucleotide chains that coil around each other to form a double helix carrying genetic instructions for the development, functioning, growth, and reproduction of all known organisms and many viruses. DNA and ribonucleic acid are nucleic acids.
Deoxyribonucleic acid
Explanation:
hope this helps...
Answer:
DNA is short for Deoxyribonucleic acid, more commonly known as DNA, is a complex molecule that contains all of the information necessary to build and maintain an organism. All living things have DNA within their cells. In other words, whenever organisms reproduce, a portion of their DNA is passed along to their offspring.
which step does "crossing over" happen? (meiosis)
Answer:
The Prophase ;)
I hope this helps!
Which of the following is the correct term for a grass seed?
monocot
dicot
pappus
gymnosperm
A molecular biologist is developing a computer model of the transcription of a gene into RNA. Which event should be included in the model before transcription occurs?
A. the removal of introns from the gene
B. RNA polymerase inserting itself into the gene
C. RNA polymerase binding to a region near the gene, called the promoter
D. the joining together of exons to form the gene
Answer:
C. RNA polymerase binding to a region near the gene, called the promoter
The protective layer of cells of the outer epidermis is called the
Answer: Stratum Corneum
Epidermis. The epidermis is the thin outer layer of the skin. It consists of 3 types of cells: Squamous cells. The outermost layer is continuously shed is called the stratum corneum
Explanation:
stratum corneum
The epidermis has no blood supply and depends on diffusion from the dermal cells for its metabolic needs. The dead-cell layer of the stratum corneum provides the protection from water loss that allows vertebrates to dwell on land
which one of the following animals is a reptile
Answer:
Where are the choices?? Wish I could help :(
Explanation:
Answer:
Snake
Explanation:
A reptile is a vertebrate with dry, scaly skin.
plz help science thank you
Why would it be useful to extract and observe DNA?
Answer:
The ability to extract DNA is of primary importance to studying the genetic causes of disease and for the development of diagnostics and drugs. It is also essential for carrying out forensic science, sequencing genomes, detecting bacteria and viruses in the environment and for determining paternity.
Explanation:
solute particles inside increase or decrease
Answer:
in what solution?
Explanation:
-
Through which of the following processes is energy formed in the form of glucose?
Answer:
photosynthesis.
Explanation:
during photosynthesis, plants use energy from the sun to convert carbon dioxide and water into glucose and oxygen.
Why did dark moths thrive in England during the Industrial Revolution?
Grassland ecosystems in Texas have evolved to depend on periodic fires to return nutrients to the soil and encourage plant reproduction. Humans have prevented fires in many of these grassland areas, resulting in plant and animal communities with little diversity. Wildlife biologists often recommend purposefully starting fires called prescribed burns, which are monitored and controlled, in grassland ecosystems every 3 to 4 years. These biologists observe greater diversity in plant and animal life in the years following a prescribed burn. What natural processes are the biologists attempting to imitate
Answer:
Succession
Explanation:
The biologists were attempting to imitate succession.
Succession refers to a gradual change to the structure and species composition of a community over a period of time.
A newly colonized environment such as a bare rock forms a community is said to be in primary succession. Thereafter, the structure and composition of the community keep changing until a relatively stable community, otherwise known as climax community, is established.
Secondary succession happens when a disturbed community tries to regain its original dynamics in terms of species composition and structure. A climax community is often less diverse than a community that is still in active succession.
Hence, the biologists were attempting to imitate succession by burning/disturning a relatively stable, less diverse climax community of grassland in order to realize a more diverse community that will undergo secondary succession.
Answer:
Succession
Explanation:
I’m literally on a timer rn I need this quick
A population of trout lives in a small lake. Some of the trout have a mutation that makes them more colorful. Select reasons this population is NOT a Hardy-weinberg Equilibrium.
A ) None of the alleles provide an advantage.
B ) All trout do not produce the same number of offspring.
C ) Some alleles provide an advantage.
D ) Mating is random
Mutation has occurred.
E ) Mutation has occurred
F ) The population is not infinitely large.
G ) Mating is probably not random.
H ) The population is not infinitely large.
Answer:
A)none of the alleles provide an advantage
How many cells are in the interphase stage of their life cycle?
Answer: 16 cells i believe
Explanation: guesses
After the X chromosome is inactivated, it will
what is the set of reactions that cells use to break down larger molecules, release energy, and make ATP?
Answer:
Cellular respiration.
Select the correct location on the map.
Which US state featured in the map is most likely to lose its forests due to mining?
Natural Resources of the United States
Washington
North
Dakota
Montana
PACIFIC
OCEAN
Oregon
South
Idaho
Dakota
Wyoming
Nevada
Nebraska
Fish
Utah
Coal
California A
Colorado
Kansas
Answer:
California
Explanation:
On the map, the state that is most likely to lose its forests due to mining is Montana, and Montana is located in the northern region of the United States. Here, there are both oil and forests, so for the oil mining, the forests are cut.
What is mining?Montana is a state in the western region of the United States and is known for its natural resources, including forests and minerals. The state has a diverse range of forest types, including coniferous forests, mixed forests, and deciduous forests, which provide important habitats for wildlife and recreational opportunities for people. However, Montana also has significant mineral and metal resources, including copper, gold, and silver, that are often extracted through mining. Mining can have significant negative impacts on forests and other ecosystems.
Hence, on the map, the state that is most likely to lose its forests due to mining is Montana, and Montana is located in the northern region of the United States.
Learn more about the mining here.
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How can you revise this paragraph to expand the variety of sentence patterns? Mice, gerbils, and rats are all rodents. Cats, foxes, and hawks
hunt rodents. Grain, nuts, and berries are rodents' favorite foods.
Rats, mice, and gerbils all belong to the same family of rodents, yet each species differs in several important ways. Foxes employ their rapid reflexes to catch prey, whereas cats are noted for being covert hunters.
What sort of symbiotic relationship do rodents and humans share?Whether we like it or not, these rodents are called commensal, which means they have a symbiotic relationship with us humans and profit from us and our homes.
What genetic variations exist between rats and mice?Although both are rodents, they differ genetically in that mice have 20 pairs of chromosomes whereas rats have 21 pairs. The size of the faeces is often used to identify the animals. Compared to mice, rats often live slightly longer.
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PLEASE HELP!!! 70 PTS!!!! I don't understand how to find the "subtopics"
Achieving Anastasia’s Dream
Part 1
Remember Anastasia? To refresh your memory, she is a high school science teacher who has the dream of traveling the world. Anastasia decides that if she teaches a science course online, she will be able to work from anywhere in the world if she has an internet connection.
To construct her course, Anastasia needs to put together a rough course calendar. Her course is going to be on biology or the study of living organisms. The course has eight sections, with each section covering three to six subtopics. Each subtopic takes a week to cover.
Here are the sections in the course. To help Anastasia out, do some research online and find at least three subtopics for each section. (You could look at websites such as k12.com or textbook publishers such as Houghton Mifflin Harcourt or Prentice Hall to see what topics are typically covered in these types of courses).
Biology Foundations
Cells
Energy and Transport
Reproduction and Cell Division
Classical Genetics
Molecular Genetics
Human Body Systems
Ecology
That is a lot to fit in! Anastasia needs her course to consist of 36 weeks’ worth of lessons. Create a 36-week chart to help Anastasia fill in her lessons so that she knows when each topic will be covered. Fill in the subtopics that you found and spread them out evenly so that all topics are covered in Anastasia’s 36-week period. Anastasia will use your chart as a course calendar. Don’t forget that one subtopic takes a week to cover. Some sections may take more weeks to cover than others, depending on the number of subtopics included, and that is just fine!
Topics: is a heading in an outlined argument or exposition.
1. Biology Foundations
All Biology.Foundation of Biology.Chemical Basis of Life.What is subtopic?A subtopic that is part of a broader or more general topic.
2. Cells - (Week 1-4)
Types of cellmetabolism of cellcell communicationcell cycle3.Energy and Transport- (week 4-8)
Introduction to metabolism Enzymes Passive and active transport Osmosis and tonicity Photosynthesis4. Cellular respiration (week 8-17)
Glycolysis pyruvate oxidationthe citric acid or Krebs cycle oxidative phosphorylation.Reproduction and Cell Division5. Classical Genetics (week 18- 24)
Introduction to heredity Non-Mendelian inheritance Seˣ linkage Pedigrees6. Molecular Genetics (week 25- 29)
DNA ForensicsFunctional GenomicsGene Therapy GenomicsReplicationtranscriptiontranslation7. Human Body Systems (week 30- 34)
Cardiovascular system. ...Digestive systemEndocrine systemExcretory systemImmune systemIntegumentary system8. Ecology (week 35 - 36)
Community structure Introduced species and biodiversity Invasive species Ecological succession Ecological succession.For more information regarding biology syllabus, visit:
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Which of the following is evidence for continental drift?
A. There is one continent on Earth. .
B. Places with hot climates once had glaciers. C. There are no mountains in Africa.
D. North America has no volcancus.
Explanation:
its b i think if its right your welcome if its not let me know
The evidence for continent drift theory is that places with hot climates once had glaciers. Therefore, option B is correct.
What is continental drift theory?According to the Theory of Continental Drift, the continents of the Earth move relative to one another and appear to be drifting over the ocean floor together.
Wegener constructed a ring around the south pole using the regions that had been ice-covered. The conclusion of the theory is, Over the past 300 million years, the continents have drifted to their present locations after having formerly been a single, bigger continent.
The fit of the continents, the distribution of prehistoric fossils, rocks, and mountain ranges, as well as the placements of prehistoric climatic zones, were all used as evidence for continental drift. Hence, option B is correct.
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