Answer:
Anthropology
Explanation:
this is the answer hope it helps you
What three structures do sponges most likely lack?
A. Organs
B. Organ systems
C. Cells
D. Lungs
Which structures are found only in plant cells, not in animal cells?
- [ ] A and B
- [ ] B and C
- [ ] C and D
- [ ] D and A
Answer:
answer is b and c
Explanation:
they have different cells, and chloroplast is only in plant cell
Which of the following is an example of a point source of population?
A. deforestation leads to soil erosion, which empties into a pond.
B. animal manure washed from a farm enters a stream.
C. an industrial waste pipe discharges water into lake.
D. storm water from street surfaces runs into river.
Describe the roles performed by the cell wall and cell membrane in a plant cell
Answer:
Cell membrane controls the substances that go in and out of the cell.
Cell wall keeps cell tugid and strong.
Throughout the world, in nearly every ecosystem, there are animal and plant species present that were introduced into the ecosystem by humans or transported to the ecosystem as a result of human activities. Some examples are listed in the chart below. 41. State one reason why an introduced species might be very successful in a new environment. [1] ________________________________________________________________ ________________________________________________________________ 42. Identify one action the government could take to prevent the introduction of additional new species. [1]
Answer:
Suitability of environment and tolerance.
Explanation:
Suitability of environment and tolerance is the reason which tells that an introduced species might be very successful in a new environment. The species have all the adaptations that helps in the survival of introduced organism. Strict checking on the airports and destruction of plant species that the person bring with it are the actions take by the government that prevent the introduction of additional new species in the ecosystem.
The difference between the bats in the United States with the Pd fungus and bats found in Europe and China with the Pd fungus was that A. the bats in the United States were immune to the fungus. B. the bats in the United States had a more deadly form of the fungus. C. the bats in Europe and China were dying at a faster rate. D. the bats in Europe and China were healthy.
Answer:
The correct answer is - D. the bats in Europe and China were healthy.
Explanation:
The white-nose disease of bats is caused by the Pseudogymnoascus destructans or Pd fungus that found in cold mines and caves of the bat. It is a fatal disease that leads to the destruction of the bat population in the United States, in north Calorina the population was dropped up to 99 percent. The bats found in Europe and China with the Pd fungus were healthy and do not cause any fatal disease in the population.
1
Select the correct label on the image.
A well is a structure created to obtain water from deep in the geosphere. From which stage of the water cycle does the well obtain water?
condensation
precipitation
evaporation
groundwater
Answer:
precipitation
Explanation:
Precipitation is the process of water cycle from which the well obtain water because in precipitation water goes inside the well. Precipitation refers to rainfall and snowfall so the water of rainfall goes inside the the soil and reaches the water table which leads to increase in the water level so we can conclude that precipitation is the process which increase the amount of water of the well.
Answer: Groundwater
Explanation:
I got it right!
Question 3
The difference between pectin an amylopectin is that
1. Pectin has more branching
2. Amylopectin has a - 1,4 glycosidic bonds and pectins have a - 1,6 glycosidic bonds
3. Amylopectin has more branching
4. Amylopectin has a - 1,4 glycosidic bonds and pectins have ß - 1,4 glycosidic bonds
The difference between pectin and amylopectin is that amylopectin has more branching than pectin.
What is pectin?"Pectin consists of a complex set of polysaccharides." This has a linear chains of α-(1–4)-linked D-galacturonic acid.This are mainly found in plants.This helps in binding cells together.What is amylopectin?"Amylopectin is a highly branched macromolecule composed mostly of α-(1→4)-d-glucopyranose units, with α-(1→6)-linkages at intervals of approximately 20 units."These are water insoluble.Hence, the correct option is 3. Amylopectin has more branching.
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When people receive organ transplants, they often need to take medications that decrease immune responses because * 2 points D. transplanted organs produce their own antibiotics B. antigens present in these organs attack antibodies already present in the blood C. hormones present in replacement organs prevent the synthesis of antibiotics A. transplanted organs contain antigens that can trigger white blood cell activity
Answer:
The correct answer is A. transplanted organs contain antigens that can trigger white blood cell activity
Explanation:
The body's immune system is designed to seek out and destroy any foreign object it finds in the body, such as a cold or flu virus - or a transplanted organ. The process of destruction of the transplanted organ is called rejection.Immunosuppressive drugs will be provided to prevent your immune system from damaging the transplanted organ. Organ transplants require the use of immunosuppressive drugs capable of controlling the immune response triggered by the presence of antigens foreign to the body itself. The group of immunosuppressants is made up of drugs indicated both in the prevention of rejection of the transplanted organ and in its reversal.
20.
Wheat can vary in color from white to dark red depending on how much red pigment is present. Which genotype will produce the darkest wheat?
AaBBCC
aabbcc
AaBbCc
AABBcc
Answer:
AaBBCC
Explanation:
I think this is it. Hope it helps
By the end of this lab, you will see how some materials diffuse through a semipermeable membrane but others do not. The materials that you examine will differ in molecule size . Some will be larger and some smaller . Formulate an investigative question for this situation .
Answer:
Due to their sizes.
Explanation:
Some materials diffuse through a semipermeable membrane because of their small size which can pass through small pores present in the semipermeable membrane of the cell while on the other hand, some molecules can't diffuse through semipermeable membrane of the cell due to its large size. Glucose, oxygen and sodium are the examples which are smaller in size and can diffuse through semipermeable membrane whereas fats, carbohydrates and proteins are big in size so it can diffuse through semipermeable membrane of the cell.
Answer:
What is the effect of molecule size on a molecule's ability to diffuse across a semipermeable membrane?
Explanation:
here’s the proof… you’re welcome
a scientist begins working by trying to explain a natural occurence that is...
1. consistent
2. observable
3. In a lab
4. undetectable
Answer:
Observable
Explanation:
An observable phenomenon leads to an hypothesis.
Answer:
2. observable
Explanation:
The scientific method relies on a scientist being able to study an occurrence and understand it. So, all the occurrences must be observable; otherwise, they cannot be studied. If the patterns are observable then one can follow the scientific method and experiment with the different variables. All science depends on the observable world and the people that study it.
PLEASE HELP!!!
15. the image below shows chromosomes in a human cell
i need answer a, b and c please!
This representation called as karyotype, the gender of the individual is male and this individual have the correct number of chromosomes.
What are chromosomes?Each cell's nucleus contains chromosomes, which are structures that resemble threads and contain the DNA molecule.
Each chromosome is constructed from DNA that has been tightly wound around proteins called histones numerous times to support its structure.
a component that can be found in a cell's nucleus. Proteins and DNA are arranged into genes on a chromosome. There are typically 23 pairs of chromosomes in each cell.
An individual's entire set of chromosomes is known as their karyotype. The phrase can also refer to an image created in a lab showing a person's chromosomes separated from one cell and organized in numerical order.
Present-day female humans have a single set of identical X chromosomes. Instead of a matched pair, male humans have one larger X and one smaller Y chromosome.
Thus, this image, known as a karyotype, shows that the person is male and has the appropriate amount of chromosomes.
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Plants are capable of using nitrogen directly from the atmosphere.
True False
A principle that states in a sequence of undisturbed rocks, the oldest rocks are on the bottom
and the rocks become progressively younger toward the top
Choose from these answer:
(Superposition)
(Uniformity)
(Fault)
(Overfolding)
super position
Explanation:
because because it is arranged in a sequence
strenuous exercise leads to muscle cramp give reason
Explanation:
Cramps can have causes that aren't due to underlying disease. Examples include dehydration, strenuous exercise or lack of muscle use.
HOPE IT HELP YOU MATE ☃️☃️
Answer: Lactic acid
Explanation: The acid is caused by anaerobic respiration, which you do when you do not get enough oxygen
What is an anticodon?*
O the bond that holds nucleotides together
O the protein that translates RNA to amino acids
O the abbreviation for amino acids
O three bases on tRNA that attaches to a codon
Answer:
An anticodon is a trinucleotide sequence complementary to that of a corresponding codon in a messenger RNA (mRNA) sequence. An anticodon is found at one end of a transfer RNA (tRNA) molecule.
Explanation:
What is the role of RNA polymerase?
Answer:
RNA polymerase is an enzyme that is responsible for copying a DNA sequence into an RNA sequence, duyring the process of transcription.
Explanation:
PLEASE BRAINLIEST or no speedrun videos (⩺_⩹)
In chickens, FF produces extreme frizzle (very brittle and curly feathers), Ff has mild frizzle and ff has normal feathers. An extreme frizzle hen is mated with a normal rooster. What will the chickens look like? What will their genotype be?
Cross (parents):
Offspring will look like:
All of the genotypes will be
Answer:
if pure FF and pure ff marry, phenotypic ratio is all Ff or half-half
mild-ruffled feathers for all the chicks
Explanation:
makes sense
Does a computer have internal organization
Answer:
Yes, the operating system is the computers internal organization
Explanation:
Reactions occur within the sun to change nuclear energy into electromagnetic energy. This is just one example of…
Answer:
Un ejemplo de reacciones de fusión son las que tienen lugar en el sol, en las que se produce la fusión de núcleos de hidrógeno para formar helio, liberando en el proceso una gran cantidad de energía en forma de radiación electromagnética, que alcanza la superficie terrestre y que percibimos como luz y calor.
Explanation:
primero:atiende a las clases de tu profesor
segundo:no seas vago
nada mas
What environmental factor was important for the
Cambrian "explosion of life”?
Answer: the earth was just starting to develop really well and well enough for life.
Explanation: atmospheric oxygen and oceanic calcium levels went up, but nobody needs to know that much facts about how earth developed, But the group called phyla started growing because of these conditions
Answer:
Explanation:
Tôi nghĩ rằng nếu quan trọng thời điểm đó phải là hình thành tầng ozon tạo tiền đề thiết lập hệ sinh thái
banda, compre una planta carnivora (una nepethe), como o que consejos me darian para cuidarla bien
The volume of air in the lungs is controlled by the
The following is a pigment gene from a spider, transcribe and translate it.
G G G T A C A C A A C C G T G C A G C C T A C T G G G
Answer:
The correct answer is -
transcribed (mRNA) - CCC AUG UGU UGG CAC GUC GGA UGA CCC
Translated - Pro- Meth- Cys-Trp-His-Val-Gly- Stop-Pro
Explanation:
Transcription and translation are two steps of protein synthesis from a particular DNA sequence from a genome. The DNA segment called gene produces specific amino acid chains to form a polypeptide chain of the protein.
Transcription is the process that produces mRNA molecule from the DNA sequence that is complementary to the nitrogen base present in the sequence. The only Change in the nitrogen sequence that Adenine changes into uracil, thymine to adenine, cytosine to guanine, and guanine to cytosine.
DNA - G G G T A C A C A A C C G T G C A G C C T A C T G G G
mRNA - CCC AUG UGU UGG CAC GUC GGA UGA CCC
Translation on other hand is the process of translating the encoded information in mRNA molecule to amino acids with help of tRNA and ribosomes.
mRNA - CCC AUG UGU UGG CAC GUC GGA UGA CCC
Translated - Pro- Meth- Cys-Trp-His-Val-Gly- Stop-Pro
Some species form social groups only with members of the same gender. For example, elephants form groups with only females and their offspring. Once the male offspring reach a certain age, they leave the group and become solitary.
Which is a benefit of this type of social group structure?
Females do not have to compete for a mate.
Male offspring can belong to more than one social group.
Adult males can mate with females in several different social groups.
Females are the only ones responsible for taking care of the offspring.
Answer:
Females do not have to compete for a mate.
Explanation:
Due to grouping of animals, females do not have to compete for a mate because each group has its own male. They have a male with which she mate and produce fertile offspring and has a complete family so we can say that the benefit of such type of social group structures is that females do not have to compete for a mate in the population as compared to other animals.
Answer:
A. female's do not have to compete for mates.
Explanation:
please answer the following questions correctly
Answer:
i. Name each of the parts labelled I, II, III, IV and V.
{5 marks}
I - Crown / Enamel
II - Dentine
III - Cement / Periodontal membrane
IV - Jaw bone / Root
V - Pulp Cavity
ii What is the function of each of the parts labelled I and III?
{2 marks}
I - Protects teeth from harmful bacteria
-- Enable teeth withstand pressure of chewing
-- Cutting / chewing / protects dentine / protect pulp cavity
III - hold tooth firmly (in socket / Jaw bone)
iii Which of the labelled parts could be affected by tooth decay?
{1 mark}
V - Pulp cavity
iv State three ways by which tooth decay may be prevented.
{3 marks}
→ avoid using sharp-pointed objects
→ avoid having dry mouth
→ use water containing fluorides to wash teeth / mouth
→ avoid smoking
→ the teeth should be cleaned regularly after each meal / remove food particle from the teeth / flossing
→ wash the mouth vigorously after each meal
→ regular visit to the dentist
→ avoid eating too hot foods
→ avoid eating too much sugary food
→ avoid eating too cold food / taking too cold drinks
Explanation:
Which three statements contain information about cats that is based on scientific knowledge rather than opinion?
Answer:
First claim '' cats are very smart animal''. Second claim '' cats make bonds with humans''
A couple of questions about soil and agriculture in the image above. Help if you want
Answer:
1 Land resource is important because humans not only live but also perform all economic activities on land. Besides, land also supports wild life, natural vegetation, transport and communication activities.
2 Mineral. The largest component of soil is the mineral portion, which makes up approximately 45% to 49% of the volume. ...
Mineral. The largest component of soil is the mineral portion, which makes up approximately 45% to 49% of the volume. ... Water. Water is the second basic component of soil. ...
Mineral. The largest component of soil is the mineral portion, which makes up approximately 45% to 49% of the volume. ... Water. Water is the second basic component of soil. ... Organic matter. Organic matter is the next basic component that is found in soils at levels of approximately 1% to 5%.
Gases.
Microorganisms.
3 Loam soils generally contain more nutrients, moisture, and humus than sandy soils, have better drainage and infiltration of water and air than silt and clay-rich soils, and are easier to till than clay soils.
4 Soil organisms represent a large fraction of global terrestrial biodiversity. They carry out a range of processes important for soil health and fertility in soils of both natural ecosystems and agricultural systems.
5 Soils provide anchorage for roots, hold water and nutrients. Soils are home to myriad micro-organisms that fix nitrogen and decompose organic matter, and armies of microscopic animals as well as earthworms and termites. ... Soil plays a vital role in the Earth's ecosystem. Without soil human life would be very difficult.
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Explain the phenomenon you observe in the diagram. Provide as many details as possible to your explanation
Answer:
reflection
Explanation:
this is what is seen on the mirror