who knows at this point. i dont even know what day it is.
As a general rule elements in group 18 do not form compounds. consider the following section of the periodic table. which of the following explains why elements in group 18 do not readily form compounds
DUE TODAY HELP PLS !
Answer:
I NEED SOME POINTS TO ASK A QUESTION.
Explanation:
2. Which fruit provides an analogy as to the thickness of the
crust of the earth?
Answer:
The orange is analogous to the Earth in having a relatively dense centre (mantle/core) and a much less dense skin (crust).
Answer:
A good anology is an oarnge because it has a thin/semi hard "crust" while the inside is much softer and bigger
GIVING BRAINLIEST!!!!
Which environment is an area of land permanently filled with water and plenty of trees?
A) Grassland
B) Mountain
C) Swamp
D) Tundra
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 are the characteristics of life that all living things have in common?
Answer:
Properties of Life. All living organisms share several key characteristics or functions: order, sensitivity or response to the environment, reproduction, growth and development, regulation, homeostasis, and energy processing.
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
Describe how the regeneration of the anole's tail showed both cell division and cell differentiation.
Please help need answers quick!!!
Answer:
In adult organisms the regenerative capacity of certain organs or tissues can be limited, resulting in an important clinical challenge for physicians and scientists [1-3].
Regeneration involves the capacity for renewal or recomposition of tissues, organs or even organisms, after considerable physical injury or damage, resulting from pathologies, tumors, congenital diseases or traumas, for example. As a consequence of tissue regeneration, both the composition and the tissue properties are restored, and the newly formed tissue is highly similar to the original tissue. The regenerative capacity is directly related to the presence of stem cells or progenitor cells, which are capable of proliferation and differentiation [4,5]. Tissues that maintain a high proliferative capacity, such as the hematopoietic system, have regenerative capacity even in adult organisms [6].
Cell proliferation occurs in repair processes in general, accompanied by intense production of extracellular matrix, with large amounts of collagen, resulting in the formation of fibrous tissue to occupy the injured area. Although there is lesion filling, both the composition and the tissue properties are different from the original tissue, and the tissue organization pattern is not restored, leading to an altered performance of its functions [2]. Skin healing processes with the presence of scars are examples of tissue repair [3].
Besides the natural processes of regeneration and repair, it is possible, through medical intervention, to fill lesions with natural or synthetic materials, aiming at the recovery of the compromised area, and conferring certain properties to the tissue, avoiding, for example, exacerbation of the initial lesion or the evolution of degenerative processes [1,7].
The three approaches can be used in tissue engineering, targeting regenerative medicine, as they allow the recovery of compromised areas in different degrees. However, the primary objective is regeneration, recomposition of the original tissue and resumption of the biomechanical and molecular properties, with the normal performance of their functions [1,7-8].
Tissue regeneration involves cell recruitment, growth, proliferation and differentiation, with the latter representing a crucial stage for the success of regeneration, avoiding the formation of fibrous tissue characteristic of the repair [9-12]. Tissues with greater regenerative capacity, such as the skin and liver, intrinsically present cells able to migrate to occupy the affected region, and the same cells maintain the proliferative capacity, enabling occupation of the lesion [3]. In other tissues the regenerative capacity is even more impaired. In the cartilage, for example, the cells remain embedded in the extracellular matrix, and the absence of blood vessels inhibits the presence of other types of component cell in the tissue; even the cell migration and proliferation processes are compromised. In general, regeneration and repair processes do not occur naturally in these cases, requiring surgical intervention to stimulate the subchondral bone marrow, thus enabling the presence of cells capable of tissue repair in the compromised area [13]. Other scientific techniques and methodologies seek alternatives to enable the processes both of repair and of tissue regeneration [9-12,14-16].
Anyhow the final stage of the abovementioned processes, cell differentiation, is critical. An understanding of the mechanisms that lead to the differentiation process in adult organisms allows the proposition of improvements in existing technologies and of alternatives geared towards the optimization of guided tissue regeneration processes, in regenerative medicine.
Most genetic diseases are caused by recessive alleles. Why? (1 point)
A) Recessive alleles are never expressed, so they confer no disadvantage to survival.
B) Dominant alleles that cause disease are removed from the population over time, but recessive alleles can
persist indefinitely in the population.
C) Genetic diseases occur only in heterozygous gene pairings.
D) The statement is untrue. Genetic diseases are most commonly caused by dominant alleles
Answer:
B is the answer beacuse yeah sorry if wrong
Give a correct biological term for each of the following
organisms made up of one cell only
help pls ( life science )
Answer:
bacteria, protists, and yeast.
Explanation:
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.
Learn more about continental drift theory, here:
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What is the role of chlorophyll is photosynthesis?
A. Carries high-energy electrons from the thylakoids to the stoma.
B. Converts carbon dioxide into glucose.
C. Absorbs energy from sunlight.
Answer:
Chlorophyll's job is to obsorb sunlight into the plant to be able to use the process of photosynthesis! Answer is C
Which occurs in the integumentary system after a deep injury occurs to the system?
Multiple choice question.
A)
Red blood cells fight off pathogens.
B)
Blood quickly clots to form a scab.
C)
Epidermis cells increase their size.
D)
Dermis cells close the injured vein.
Answer: The correct answer is B
What are the fifteen different structures found within eukaryotic cells?
Answer:
cell membrane, nucleus, nucleolus, nuclear membrane, cytoplasm, endoplasmic reticulum, Golgi apparatus, ribosomes, mitochondria, centrioles, cytoskeleton, vacuoles, and vesicles.
Explanation:
sorry but these are only 13
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
Cancer is a disease caused by mutations. Yet in most instances, if a parent tragically dies from cancer, this does not put their child at a greater risk than a person who parents don't develop cancer. How can cancer be caused by mutations and ot be heritable?
a. most cancers arise from mutation in germ line cells
b. mutations that cause cancer occur on specific cells, such as sex cells
c. mutations caused by environmental agents, such as tobacco smoke, occur in somatic cells
d. mutations that cause cancer are specific and cannot be passed on regardless of the type of cell they occur in
Answer:
c. mutations caused by environmental agents, such as tobacco smoke, occur in somatic cells
Explanation:
just because you're parents smoked and got lung cancer doesn't mean you'll get lung cancer. (unless you're breathing the smoke, but that's different from inheriting it.)
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.
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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I would really appreciate it if someone help me with this!!!
Answer:
Bb= HE
bb-HOC
Ss=HE
SS=HOD
ss=HOC
Tt=HE
tt=HOC
TT=HOD
Explanation:
What organ is made up of cardiac muscle tissue and is vital to circulate materials around your body?
PLD HELP
How many cells are in the interphase stage of their life cycle?
Answer: 16 cells i believe
Explanation: guesses
PLEASE HELP!!!!!! I DO NOT UNDERSTAND CAN SOMEONE HELP!!!!!!!!
what are some of the services that a healthy biodiversity provides for everyone?
Answer:
it gives a greater variety of crops
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.
Just let me know if I’m not help me please
Answer:
Your choices are all correct!
Answer:
Your are right the correct anwsers are
B. have cell wallC. possess large, central vacuoleF. Contains chloroplastsExplanation:
hope this helps you :)
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
What do you mean by human made resources ?
Answer:
Human beings change resources in two new form like people use natural resources to make buildings, bridges ,machinery and vehicles with the help of technology such resources are called human-made resources. ... Likewise, technology is also a man-made resource. Man-made resources are mostly renewable.
Human made resources are those resources that are created by humans, as opposed to being found in nature. This includes both physical resources like buildings, machines, and tools, as well as intangible resources like intellectual property, knowledge, and know-how. Human made resources are a key factor in economic development and prosperity, and are essential for businesses and organizations of all sizes.
Hope this helps :)
Examples of how species can increase the species chance of survival
Answer: adaptation would help a sped iss survive
Explanation:
The primitive hydra reproduces during the summer, when the new hydra develops as a bud of the parent. The buds break off, and the young hydra are clones of the parent organism. What kind of reproduction is this?
a. Sexual
b. Asexual
c. Genetic
d. Mother-daughter cells
.[tex] \huge \bigstar \mathfrak{ \fcolorbox{lime}{black}{ \red{ Asexual }}} \bigstar[/tex]
. Asexual
Why did dark moths thrive in England during the Industrial Revolution?
how much nervy is needed to melt 90g at 0°C
Answer:
I don't know I'm sorry I will tell you another answer asks me to