Answer: Virchow van Leeuwenhoek
Explanation:
what is the function of the pancreas
Explanation:
the function of the pancreas that it secretes enzymes that work in tandem with bile from the liver and gallbladder to help breakdown substances for proper digestion and absorption.
Answer:
Releases insulin.
Explanation:
A scientist adds heat to each of the following substances. Which will probably absorb the most heat before its temperature changes significantly? (2 points)
Which of the following is not a cause of water pollution?
a jet fuel
b laundry soap
c ammonia
d none of the above
Answer:
D) none of the above
Explanation:
took the quiz on edgenudity
The right answer is (a) jet fuel.
What is water pollution?Water pollution refers to the presence or introduction of harmful substances or pollutants into bodies of water such as lakes, rivers, oceans, and groundwater.
These pollutants can come from a variety of sources, including natural and human-made sources. While there are many different types of pollutants that can cause water pollution, some of the most common sources of water pollution include:
Industrial waste: Industries and factories release a variety of pollutants into water bodies, such as chemicals, heavy metals, and organic compounds.
Agricultural runoff: Fertilizers and pesticides used in agriculture can leach into waterways and cause significant pollution. Agricultural runoff can also contain soil, animal waste, and other contaminants that can degrade water quality.
Sewage and wastewater: Sewage and wastewater from homes and businesses contain a wide range of pollutants, including human waste, chemicals, and pharmaceuticals. These pollutants can have serious impacts on aquatic life and human health.
A jet fuel is not typically a cause of water pollution. While spills of jet fuel or other petroleum products can occur and can cause significant harm to aquatic ecosystems, they are not one of the most common causes of water pollution.
The most common causes of water pollution include things like industrial waste, agricultural runoff, sewage and wastewater, and improper disposal of household chemicals and medications.
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Colonial protists have been hypothesized to be the precursors to multicellular organisms. This hypothesis suggests that the individual unicellular members of the colony, which are initially identical, can begin to take on different functions. Then. the colony can begin to evolve into a multicellular organism. True or False
Answer:
True.
Explanation:
Protists are group of eukaryotes that are unicellular or microscopic and some times multicellular. They can live in colonies and live individually.
Some protist live in large groups called colony.
Colonial protists form larger groups of multicellular organisms. The individuals work together as large groups and perform functions to benefit each other.
most of the colonial protist are filter feeders that feed on suspended particles. Colonies enhance feeding efficiency. In choanoflagellates, coloniest has led to the evolution of metazoans
Which statement describes a feature of equal are projection?
Option C
Latitude lines meet at the poles.
Explanation:
Several equivalent projections were developed in an attempt to minimize the distortion of countries and continents of planet Earth,keeping the area constant.
hope it helps
Answer:
c
Explanation:
i did it already
Why is ATP used as an active energy source over glucose?
Which types of mutation are most damaging to an organism?
a) Substitution & Deletion
b) Deletion & Insertion
c) Insertion & Substitution
[tex]answer \\ = deletion \: and \: insertion \\ explanation \\ insertion \: and \: deletion \: results \: in \: a \: \\ frame \: shift \: that \: changes \: the \: \\ reading \: of \: subsequent \: codons \: and \: \\ therefore \: alters \: the \: entire \: amino \: \\ acid \: sequence \: that \: follows \: the \: \\ mutation ,insertion \: and \: deletions \: \\ are \: usually \: more \: harmful \: than \\ a \: substitution \: in \: which \: a \: single \\ amino \: acid \: is \: altered. \\ hope \: it \: helps[/tex]
which structure is found in the cytoplasm of a prokaryotic cell but is not found in the cytoplasm of a eukaryotic cell
Answer: DNA
is found in the cytoplasm of a prokaryotic cell. Not found in the cytoplasm of a eukaryotic cell.
What are the characteristics of erythrocytes? Erythrocytes contain a nucleus, mitochondria, and ribosomes. Erythrocytes synthesize proteins. Erythrocytes can change shape to squeeze through microcirculation. Erythrocyte proliferation is stimulated by erythrocyte colony-stimulating factor (E-CSF).
Answer:
Erythrocytes can change shape to squeeze through microcirculation.
Explanation:
Deformability is the ability of the red blood cells to change shape so as to enable them squeeze through tight or small spaces including capillaries.
What's the difference between Columnar Epithelium and Glandular Epithelium. (Pls answer fast T_T)
Answer:
glandular epithelium are specialized for secretion. lining epithelium simply lines organs like the stomach. ... Endocrine glands release substances within the body and exocrine glands release substances outside the body.
Simple columnar epithelia are tissues made of a single layer of long epithelial cells that are often seen in regions where absorption and secretion are important features. The cells of this epithelium are arranged in a neat row with the nuclei at the same level, near the basal end ...
what is the job of the stomach, large intenstine, small intestine 60 points!!
Answer:
Stomach - The stomach is a hollow organ, or "container," that holds food while it is being mixed with stomach enzymes.
Large Intestine - The large intestine absorbs water and electrolytes, and produces and absorbs vitamins. It forms and propells feces toward the rectum for elimination.
Small Intestine - The small intestine breaks down food coming from the stomach and absorbs the nutrients from the food.
what cell structure is largely responsible for controlling the entry and exit of substances into or out of the cell?
Answer:
plasma membrane
Explanation:
The plasma membrane is also known as the cell membrane. It is the boundary between the internal components of a cell and its external surroundings. It controls the entry and exit of substances into or out of the cell and thus, facilitates the exchange of substances between the cells and their external environment.
Here is a hypothetical situation: An area of the country has received a record amount of rainfall this year coupled with a mild winter and a warm spring and summer. As a result the mosquito population is exceptionally high. Mosquitoes are not pathogens to humans. However, mosquitoes can greatly affect the rate of infection for several types of human pathogens. Pick and describe two pathogens that you should expect to see at higher frequency because of this booming mosquito population.
Answer:
Zika virus and West Nile virus are the two pathogens which causes more diseases due to increase the population of mosquito.
Explanation:
Zika virus belongs to the family of Flaviviridae. Aedes mosquitoes which are active at day time are the carrier of this virus. West Nile virus is also spread through the bite of mosquito. The infected mosquito is the main cause of spreading of this disease. This virus is spreading too fast in the United States of America in the summer season where the population of mosquitoes increases.
What happens to certain nutrient molecules after they pass into muscle cells?
A.
They are replicated in the nucleus
B.
They are acted on by enzymes and release the energy they contain.
c.
They are changed into tissues and organs in the cytoplasm.
D.
They enter chloroplasts, where they can absorb light energy.
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Answer:
B. They are acted on by enzymes and release the energy they contain.
Explanation:
Muscles need energy to function thus these molecules make their way into muscles where enzymes act on them to release the energy, energy will likely be ATP.
The majority of vaccines work by eliciting pathogen-specific antibodies that circulate in our bodies and protect us in the event that we are later exposed to that specific pathogen. For most viruses and bacterial toxins that we are vaccinated against, these pre-existing antibodies are protective because:
Answer:
Explanation:
Vaccines are penetrations into the body system that helps improve the immune system against specific diseases.
The vaccines act by imitating the disease causing organism i.e they resemble the disease causing organism this is because they have been made form strains of the weak or dead disease organism.
The body system is made to identify this toxins or disease organism as something strange that needs to be remove anytime it reoccurs in the cell when the vaccines are taken. Although the body sees vaccine as something harmful they do not actually cause the disease but are pointers to the disease causing organism.
What other characteristics can you think of that make an organism a good disperser?
Answer:
Explanation:
For organism to be described as a good disperser, it must possess some characteristics which includes:
Rapid growth with a short life span and early maturity
They must also have many small offsprings and with little parental care or protection
They are easily adapted to unstable environments and can be "pioneer" species.
They often undergo self fertilization and have large seeds etc
Which of the following is true regarding limestone and dolostone? Group of answer choices A.Limestone only visibly reacts to acid if powdered. B.Dolostone only visibly reacts to acid if powdered. C.They both react to acid in their solid form. D.They are very similar, except limestone has magnesium in addition to calcium carbonate.
Answer: B.)
Explanation:
The statement is true regarding limestone and dolostone is as follows:
Dolostone only visibly reacts to acid if powdered.Thus, the correct option is B.
What is Dolostone?Dolostone may be defined as a sedimentary carbonate rock that possesses a high percentage of the mineral dolomite, CaMg(CO3)2.
Limestone is composed of the mineral calcite (CaCO3), while dolostone is composed of the mineral dolomite. They are both very similar to one another.
Limestone reacts with acids in solid form while dolostone visibly reacts with acids, if powdered.
Therefore, the correct option for this question is B.
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what is is a specific version of a gene on a homologous chromosome that has a corresponding version of a similar gene on a homologous chromosome. For example, hair color gene (ie. red from mom) will be on one homologous chromosome and a possibly different version of hair color gene (ie. black from dad) will be on the other corresponding homologous chromosome.
Answer:
This statement is partially true.
Explanation:
There are many phenotypic features that display a quantitative mode of inheritance and exhibit a continuous range of variation. Hair color is controlled by different genes that work together to express this trait. In consequence, this trait has a polygenic mode of inheritance, where a particular phenotype depends on both additive and dominance genetic effects. The most important gene associated with the hair color is Melanocortin 1 Receptor (MC1R), which is involved in the biosynthesis pathway that controls the synthesis of melanin.
The inheritance of the petite phenotype in Saccharomyces cerevisiae is complicated by an interaction of mitochondrial and nuclear genes. Which of the following is a false statement about petites in S. cerevisiae?
A) Segregational petites are characterized by mutations in the nuclear genome.
B) Suppressive petites are characterized by mitochondria lacking most of its DNA.
C) Neutral petites, when crossed to wild type, yield wild-type mitochondrial function.
D) The three categories of petites are segregational, neutral, and suppressive.
E) Both nuclear and cytoplasmic (mitochondrial) genes contribute to the petite phenotype in some cases.
Answer:
Option B
Explanation:
The three categories of petites are segregational, neutral, and suppressive and both nuclear and cytoplasmic (mitochondrial) genes contribute to the petite phenotype in some cases. Suppressive petites are characterized by perfoming crosses between petite and wild-type and discovering that all offspring are petite, this exhibit a "dominant" behavior which suppresses wild-type mitochondrial function and not a lack of mitochondrial function.
What do eukaryotes cells have that prokaryotes do not have
Answer:
Prokaryotic cells are less structured than eukaryotic cells. They have no nucleus; instead their genetic material is free-floating within the cell. They also lack the many membrane-bound organelles found in eukaryotic cells. Thus, prokaryotes have no mitochondria. I hope this helped.
IF YOU DO NOT MIND CAN YOU MARK ME BRAINLIEST?Answer:
true cell
Explanation:
membrane bound organelles such as the nucleus
What happens during G2 phase?
Answer:
Gap 2 (G2): During the gap between DNA synthesis and mitosis, the cell will continue to grow and produce new proteins.
Answer provided by CELLS Alive
Which statement best explains why fermentation occurs in mammals? It enables mammals to generate additional ATPATP in an oxygen‑rich environment. It breaks down lactic acid to generate a small amount of ATPATP under anaerobic conditions. It generates ethanol, which can be used as an alternative source of energy. It produces an acid that maintains blood pH within a narrow range. It allows glycolysis to continue under anaerobic conditions by replenishing NAD+NAD+ .
Answer:
The last option.
Explanation:
Fermentation/ Anaerobic respiration is important to supply ATP in the absence of oxygen.
In the presence of oxygen, glycolysis, Kreb's cycle and oxidative phosphorylation happen to provide about 32 ATP molecules. In its absence, only glycolysis can take place because it's the only step that doesnt need oxygen, to give a net supply of 2 ATP.
Even though glycolysis doesn't need oxygen, it needs NAD, and if the reduced NAD doesn't lose its hydrogens via oxidative phosphorylation, pyruvate (the end product of glycolysis) becomes the recipient of the hydrogen.
Pyruvate gets reduced to lactate.
The correct answer as to which best explains why fermentation occurs in mammals would be that it breaks down lactic acid to generate a small amount of ATP under anaerobic condition.
Aerobic respiration takes place in 3 steps:
Glycolysis: during which glucose is converted into pyruvate molecules with 2 ATP and 2NADH molecules produced.Citric acid cycle: during which pyruvate molecules from glycolysis are converted to CO2 with ATP, NADH, and FADH2 generatedElectron transport chain: during which the NADH and FADH2 produced in citric acid cycle are used to generate ATP.When oxygen becomes inadequate during rigorous activities in human cells, pyruvate molecules cannot proceed to the citric acid cycle due to lack of oxygen. Instead, the pyruvate molecules are converted to lactic acid through fermentation to generate 2 molecules of ATP.
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What is the difference between Palm trees and mosses ?
A- Palm trees have leaves , while mosses do not.
B- Palm trees are large , but mosses are small.
C- Palm trees have roots and mosses do not.
D- Palm trees produce flowers while mosses do not.
Answer:
Palm trees produce flowers whiles masses do not
Look at the ocean system described below.
plankton
herring
octopus
shark
What will most likely happen to this ecosystem if the herring are killed by a
virus?
A. The shark population will increase.
B. The plankton will die off over time.
C. The octopus population will increase.
D. The octopus and shark populations will decline.
Answer:
I think the ans is D (The octopus and shark populations will decline.)
Most likely happen to this ecosystem if the herring are killed by a
virus D. The octopus and shark populations will decline.
What is a ecosystem?An ecosystem is a geographic area where plants, animals, and other organisms, as well as weather and landscapes, work together to form a bubble of life.
What is importance of ecosystem?As a society, we depend on healthy ecosystems to do many things; to purify the air so we can breathe properly, sequester carbon for climate regulation, cycle nutrients so we have access to clean drinking water without costly infrastructure, and pollinate our crops so we don't go hungry.
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Hamilton’s rule states that:
a. altruism evolves only among nonkin.
b. selfish genes swamp altruistic genes.
c. altruistic behavior is favored if the cost to the actor is less than the benefit to the recipient, devalued by the degree of relatedness.
d. altruistic behavior is favored if the benefits to the actor are greater than the costs to the recipients, devalued by their degree of relatedness.
Answer:
The correct answer is option D.
Explanation:
Hamilton rules state that any trait that helps in benefiting others, B, is multiplied by genetic relatedness, R, which is greater than cot to self, C, it is favored by the process of natural selection.
As indicated by Hamilton's rule, the kin selection makes qualities increment in recurrence when the hereditary relatedness of a beneficiary to an actor multiplied by the advantage to the beneficiary is more noteworthy than the regenerative expense to the actor.
Thus, the correct answer is option D.
is heat involved in producing all three classes of rock.
Answer: yes. metamorphic, sedimentary, and igneous
Explanation:
Sedimentary and igneous rock is transformed into metamorphic rock inside the Earth by heat, pressure, and melting, so heat is involved in producing all three classes of rock.
What are the classes of rock?From eroding parent material, sedimentary rock is created. The source material may be sedimentary, metamorphic, or igneous in origin.
Strong heating causes hot liquid rock (magma) to break through the Earth's surface and solidify as igneous rock. This rock is worn and eroded throughout time, restarting the cycle.
The existing rock must stay solid and not melt in order to produce metamorphic rock. The rock will melt and turn into the lava if there is too much heat or pressure. An igneous rock, not a metamorphic rock, will develop as a result of this. Think about the shape changes in granite.
Therefore, sedimentary and igneous rock is transformed into metamorphic rock inside the Earth by heat, pressure, and melting.
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A scientist analyzed a segment of DNA from a human chromosome and found that the percentage of thymine molecular bases (T) was 35%. Which
row in the chart below contains the correct percentages of the other molecular bases in the DNA segment?
Row
Guanine (G) Cytosine (C) Adenine (A)
15%
25%
25%
A.
25%
25%
15%
B.
15%
15%
35%
C.
35%
15%
15%
D
Answer:
C. 15% 15% 35%
Explanation:
This follows the rules of base pairing. The amount of thymine (T) equals the amount of adenine (A), and the amount of guanine (G) equals the amount of cytosine (C).
Since thymine is equal to adenine and 35% of the bases is thymine, 35% of the bases is also adenine. This gives you a total of 70%.
35% + 35% = 70%
Now you need to figure out how much cytosine and guanine are in the bases. Since 70% of the bases are adenine and thymine, 30% will be cytosine and guanine.
100% - 70% = 30%
Since the amount of cytosine and guanine are equal, divide 30% by 2 to figure out how much each base takes of the total.
30/2 = 15%
Cytosine and guanine each take up 15% of the molecular bases.
Examination of a sandstone outcrop reveals an abundance of feldspar and quartz grains. Could this weathered material have come from a nearby basaltic lava flow or a granite outcrop up the road?
The weathered material of a sandstone outcrop revealing an abundance of feldspar and quartz grains would have come from a granite outcrop up the road rather than a nearby basaltic lava flow.
Feldspar is a common mineral found in granite, whereas it is less abundant or absent in basaltic lava flows. Granite is composed primarily of feldspar along with quartz and other minerals. So, the presence of an abundance of feldspar grains suggests a connection to granite rather than basalt.
Quartz is present in both granite and basalt, but it is more commonly associated with granite. Quartz is one of the major constituents of granite, whereas it is generally less abundant in basaltic lava flows. Therefore, the presence of quartz grains does not necessarily differentiate between the two sources but aligns more with the possibility of granite as the origin.
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how do plant get nutrients
Answer:
Processes. Plants take up essential elements from the soil through their roots and from the air through their leaves. Nutrient uptake in the soil is achieved by cation exchange, where in root hairs pump hydrogen ions (H+) into the soil through proton pumps
hope i helped !!
Answer:
water, sun, soil
Explanation:
Plants absorb nutrients and water through their roots, but photosynthesis occurs in the leaves. So, plants need to get fluids and nutrients from the ground up through their stems to their parts that are above ground level.
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List 3 commercial uses of sponges
The Ceramic industry. It is used for finishing on the lathe machine. ...
Home decorating/painting. The sponge buffering is a colouring technique used in DIY on furniture and accessories and on large surfaces such as walls and ceilings. ...
Footwear Manufacturers.
Answer:
Some commercial uses of sponges are
Personal hygiene: The sponge has many natural properties. It retains water, does not drip and releases water only when slight pressure is applied. Many people prefer to purchase the natural sea sponge because of its characteristics for deep cleansing the face, its ecological properties and most of all does not give allergic reactions.
Decor : In private homes, in hotels and on yachts, it is very common to see displays of natural sponges as part of furnishing.
Painting: The sea sponge is used in the restoration of art, for dry cleaning of frescoes and paintings
Hope this helps!
-Quinn <3
