Animals are multicellular.
Animals are heterotrophic, obtaining their energy by consuming energy-releasing food substances.
Animals typically reproduce sexually.
Animals are made up of cells that do not have cell walls.
Animals are capable of motion in some stage of their lives.
Animals are able to respond quickly to external stimuli as a result of nerve cells, muscle or contractile tissue, or both.
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Animals are multicellular organisms that exhibits certain characteristics. The organisms that belong to the kingdom Animalia and have eukaryotic multicellular cells. They have DNA as their genome. As they lack chlorophyll, these are included under heterotrophic organisms.
What are heterotrophic organisms?The organisms that cannot make their own food and are dependent on plants for the same directly or indirectly.
The animals have the following characteristics:
All animals require nutrition.They perform respiration.They exhibit movement.They have certain growth.They exhibit reproduction that involves the fusion of gametes.Animals are sensitive to the stimulus.Thus, these are the 6 characteristics of animals.
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According to the graph, which biome would be expected when rainfall ranges between 150 cm/year and 200 cm/year?
a. Tropical rain forest
b. Grassland
c. Tropical seasonal forest
d. Savanna
The answer is C. Tropical seasonal forest.
The Milky Way is _____.
a. a galactic supercluster
b. an irregular galaxy
c. a spiral galaxy
d. an elliptical galaxy
Answer:
a galactic supercluster
Explanation:
Answer:
c. spiral galaxy
Explanation:
the image
The reason it could not be a galactic supercluster is because a galactic supercluster is made up of small galaxies, and the Milky Way is part of the Virgo Supercluster. It is part of a supercluster but is not a supercluster itself.
The bones in the front fins of whales and the bones in the human arm evolved from a common ancestor but carry out different functions. This is an example of
A. homologous structures.
B. vestigial structures.
C. embryonic structures.
D. analogous structures.
Answer:
A. homologous structures.
Explanation:
Divergent evolution leads to the development of the evolution of homologous structures in closely related species. These structures have a common basic plan but are adapted to perform different functions according to the habit and habitat of the organism.
Fins of whales and human arms have common basic origin but are adapted to serve in swimming and holding things since whales are aquatic mammals but the human is not. Hence, they are homologous organs.
According to the theory of isostasy, which statement must be true?
A. The asthenosphere has the same density as the lithosphere.
B. The lithosphere is denser than the asthenosphere.
C. The asthenosphere is denser than the lithosphere.
D. The lithosphere has the same density as the core
Answer:
According to the theory of isostasy, the statement that correct is C.
Explanation:
Ok, let's first explain what the isostasy is: the Isostasy is the ideal theoretical balance of all large portions of Earth’s lithosphere as though they were floating on the denser underlying layer, the asthenosphere, a section of the upper mantle composed of weak, plastic rock.
The asthenosphere is a part of the upper mantle just below the lithosphere that is involved in plate tectonic movement and isostatic adjustments. And the lithosphere is the solid, outer part of the Earth. The lithosphere includes the brittle upper portion of the mantle and the crust, the outermost layers of Earth’s structure.
Taking into account these characteristics, the lithosphere is less dense than the asthenosphere. This is because less dense substances (lithosphere) will float on top of denser substances (asthenosphere). Since the lithosphere is on top of the asthenosphere it must be less dense.
Answer:
C. The asthenosphere is denser than the lithosphere.
Explanation:
The theory of isostasy states that the deeper layers of earth crust must have higher density than that of upper layers. It is required to allow the upper lighter layers to float on the underlying denser layers. Since asthenosphere is present below lithosphere, the asthenosphere is denser than the lithosphere.
Please help plzzzzzz
Kate is arguing with her friend that sardines have higher net production efficiency than blue whales. Why do you think that Kate is making this statement?
A.
because sardines are at the top of the food chain, being apex predators, as they feed on blue whales
B.
because sardines have better ability to assimilate energy and convert it to biomass than the blue whales
C.
because sardines are warm blooded and blue whales are cold blooded
D.
because sardines are producers and blue whales are herbivores
Answer:
C
Explanation:
The answer is B but theyre making me write 20 characters so im just going to write a bunch of random stuff now
Which statement describes the major role of lipids within the cell
Answer:
storage of energy and formation of cell membrane
which is the largest level of classification of these options?
A. family
B. order
C. class
D. phylum
-apex
Answer: phylum
Explanation:
kingdom, phylum, class, order, domain, family, genus and species
Babies with very low or very high birthweight are less likely to survive observe a graph of the data
Answer:
Low or very high weight are two extremes.
If these two extremes do not survive then only those between these extremes will survive.
We therefore conclude that those babies with an average weight will survive.
The average weight will depend on the two extreme weights.
Therefore,
Stabilizing selection is occurring because the average is favored.
Which of the following is not a place where hydrogen can be found on Earth?
A. Mine
B. Natural gas well
C. Water
D. Atmosphere
Answer:
c. water
Explanation:
the chemical compound is H20, which stands for hydrogen and 2 oxygen
Answer:
D. Atmosphere
Got the answer from Penn Foster on the last earth science test. The answer is in Lesson 6: 6.2
Which of these is an example of an environment changing slowly?
A. Hurricane
B. Forest Succession
C. Volcanic Eruption
D. Flooding
Which of these is an example of an environment changing slowly?
A. Hurricane
B. Forest Succession
C. Volcanic eruption
D. Flooding
ANSWER B.
Forest succession is an example of an environment changing slowly, as part of the process of ecological succession. This gradual change allows for a diverse range of species to establish over time, unlike rapid changes caused by events like hurricanes or volcanic eruptions.
Explanation:An example of an environment changing slowly would be B. Forest Succession. This is a natural process called ecological succession, which involves the gradual changes in the types of species that occupy an area over time. Unlike a hurricane, volcanic eruption, or flooding, which can cause sudden and significant changes to an environment, forest succession is a slower process where the ecosystem evolves and new communities of plants and animals establish over a period of years, decades, or even centuries.
Secondary succession, for example, occurs in areas where a disturbance has happened, such as a forest cleared for farming that is later abandoned or an area recovered after a fire. This type of succession is faster than primary succession because the soil is already present. The ecosystem's recovery begins with pioneer species, and over time, a mature and stable community develops, characterized by a diverse range of species adapted to the slower changing conditions.
During a science experiment, Courtney believes that she may have found a new cell that has never been seen before. This cell includes DNA and has a nucleoid region but does not have a nucleus. What type of cell is Courtney looking at?
Answer:
Courtney is looking at Prokaryotic Cell.
Explanation:
Ok, when Courtney is observing the science experiment, and finds a cell that includes DNA and has a nucleoid region but does not have nucleus, it is a prokaryotic cell and only the single-celled organisms of the domains Bacteria and Archaea are classified as prokaryotes, where pro means before and kary means nucleus.
Let's explain what is a prokaryotic cell: prokaryotes are unicellular organisms that lack organelles or other internal membrane-bound structures. Therefore, they do not have a nucleus, but, instead, generally have a single chromosome: a piece of circular, double-stranded DNA located in an area of the cell called the nucleoid. And most prokaryotes have a cell wall outside the plasma membrane.
Answer:
Courtney is looking at a prokaryotic cell.
Explanation:
Ok, when Courtney is observing the science experiment, and finds a cell that includes DNA and has a nucleoid region but does not have nucleus, it is a prokaryotic cell and only the single-celled organisms of the domains Bacteria and Archaea are classified as prokaryotes, where pro means before and kary means nucleus.
_____Succession involves a pioneer species.
A. Primary
B. Tertiary
C. Secondary
D. Quaternary
Answer:
A. Primary
Explanation:
Pioneer species are the first to arrive after a disturbance, so they are part of the first stage of succession = primary.
Answer:
Primary.
Explanation:
Succession may be defined as the change of the structure of the ecosystem and species with time. Two main types of succession are the prmay succession and secondary succession.
Primary succession occurs on the baren land. The ioneering species is the first species that inhabit in the baren land. Hence, pioneer species is involved in the primary succession.
Thus, the correct answer is option (A).
Which of these phrases is correlated with sieverts? Check all that apply. one disintegration per second one joule of energy per kilogram of matter number of disintegrations of radioactive atoms over a period of time radiation dose absorbed by any material radiation dose absorbed by biological tissue measurement of emitted radiation measurement of radiation dose measurement of biological risk
Answer:
The correct answers are
-one joule of energy per kilogram of matter
-radiation dose absorbed by biological tissue
-measurement of biological risk
Explanation:
Answer:
The correct answers are "one joule of energy per kilogram of matter", "radiation dose absorbed by biological tissue" and "measurement of biological risk".
Explanation:
A sievert is a standardized unit used to study the biological effect that ionizing radiation have on an organism. It is defined as one joule of energy per kilogram of matter, where the matter in question belongs to a biological tissue. The sieverts are used to estimate the health effects that radiation exposure have in living beings. Therefore, they are a measurement of biological risk. It is estimated that a single exposure of about five sieverts would kill half of the persons exposed within a month.
A unique characteristics of birds is that they have?
How do I describe the shape of a histogram?
Answer:
A histogram may have a variety of shapes. However, the 3 most common of these shapes of histograms are skewed, symmetric, and uniform. The dashed lines cut the graph into 2 equal pieces, so both graphs are symmetric with respect to the dashed line.
Differences between physical and biological aspects of environment
Answer:
Physical environment is the sum of all abiotic (non-living) elements such as water, air (gases), minerals, etc. In a physical environment, total amount of matter remains same but it may changes its state. Physical environment provides shelter, food and energy to the living organisms.
Biological environment includes all forms of life that interact closely with the abiotic elements and perform biogeochemical activities for their own growth and survival. In short, biotic entities directly depend on the elements of physical environment.
How do organelles work together in the functioning of the cell?
Answer:
All of the cell's organelles have to work together to keep that cell are healthy as possible.
Explanation:
Each organelle has a specific function or job for it to do for the cell to survive. The nucleus (the middle of the cell) of a eukaryotic cell moves and directs the cell to do the cells job and stores DNA.
Which option uses the monitoring method to check the growth of invasive species?
A.
introduction of a predator species
B.
digging of the species
C.
tilling the land
D.
spraying pesticide
E.
cleaning of ship ballast
PLEASE HELP
Answer:
The answer is A.
Answer:
The correct answer is option A, that is, introduction of a predator species.
Explanation:
Any kind of living species like an amphibian, a plant, insect, bacteria, fungus or fish that are not native to an ecosystem and results in destruction is known as an invasive species. They can impart harm to the health of a human being, surrounding, or even to the economy of the nation. An essential factor that converts the species into an invasive one is the non-presence of predators in the novel surrounding. Therefore, the presentation of a predator species would possibly assist in imparting a check in the development of the invasive species.
3. What part of the cell does 4 represent?
A. Cytoplasm
B. Smooth endoplasmic reticulum
C. Rough endoplasmic reticulum
D. Mitochondrion
It's represent Mitochondrion
The cell does 4 represent is D. Mitochondrion. Thus, option "D" is correct.
What are mitochondria?The crista is an integral part of the mitochondria. As you already know, mitochondrion is a cytoplasmic organelle. it has two members that delimit it, the outer membrane is completely smooth, however the inner membrane is composed of numerous folds, that are called crista, and that spread through the interior of the mitochondria.
These cristae have as main function to increase the surface of the inner membrane.
Thus, option "D" is correct.
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Which of the following correctly defines transcription?
The second choice....... :)
What is missing from the ecosystem during primary succession
Answer:
competition
Explanation:
After an ecosystem has been destroyed because of certain catastrophe and all of the space that it occupied is totally cleared and open for overtaking, the primary succession comes in action. When the primary succession occurs, there's no competition, as pretty much everything has been destroyed from the previously existing ecosystem. The pioneers of the primary succession are organisms that do not require a lot to prosper, such as the mosses and lichens. As they start to cover the barren land, little by little they manage to change the composition of the rocks, thus resulting in the formation of the first soils. As that happens, the secondary succession comes on the horizon as now it has conditions for it, so the species from it overtake and replace the species form the primary succession.
Which is most likely an example of a vestigial structure?
Answer:Tailbone of a human
Explanation:
the human appendix is an example of vestigial features.
Why is the human appendix considered a vestigial structure?The human appendix can be referred to as a vestigial organ because it has been proven that removing it after childhood causes no damage.
but, in humans, the appendix has developed to the point where it is strategically located at the intersection of the midgut and hindgut.
Appendixes were employed for digestion by prehistoric humans, who were mostly herbivores.
but, as humans progressed, they began to eat extra without difficulty digestible foods, and the appendix finally lost its ability to function.
Examples of Vestigial Organs
Sinuses. Human cheekbones hold the maxillary sinuses.Appendix. It is one of the most commonly known vestigial organs.Coccyx.Wisdom Tooth.External Ear.Nictitating Membrane.Tonsils.Learn more about vestigial structure here
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What is the best description of chromosomes by the end of anaphase 2 of meiosis
Answer: The answer is, The chromosomes of two diploid cells split apart at the centromere Hope this helps:)
The average, year-after-year conditions of temperature, precipitation, winds, and cloud in an area are known as _____.
global warming
its climate
its weather
the seasons
Answer:
The average, year-after-year conditions of temperature, precipitation, winds, and cloud in an areas are known as its climate.
Hope this helps!! :)
Final answer:
The average, year-after-year conditions of temperature, precipitation, winds, and clouds in an area are known as its climate. Climate is the long-term average, typically over 30 years, while weather refers to short-term conditions. Distinguishing between these two helps in understanding climate change.
Explanation:
The average, year-after-year conditions of temperature, precipitation, winds, and clouds in an area are known as its climate. While weather refers to short-term atmospheric conditions, climate is the long-term average of these conditions, typically measured over a span of 30 years.
Understanding climate is essential for distinguishing between the natural variability of weather and more significant changes such as climate change, which refers to any change in the average weather conditions on Earth that lasts for several decades. This includes the rising global average temperature, which is associated with widespread changes in weather patterns and is often used to refer to ongoing global warming.
Jesus told this disciple he would become a "fisher of men".
John
James
Andrew
Peter
Answer:
Peter and Andrew
Explanation:
According to Matthew 4:18-19
(18) And Jesus, walking by the sea of Galilee, saw two brothers, Simon called Peter, and Andrew his brother, casting a net into the sea: for they were fishers. (19) And he said to them, Follow me, and I will make you fishers of men.
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what is the difference between a new moon and a lunar eclipse
Answer:
Difference Between Lunar Eclipse And New Moon. Lunar Eclipse occurs when the earth comes between the sun and the moon in such a way that it blocks the sun's rays completely from reaching the moon. New moon is the phase of the moon during its monthly orbit when the moon lies between the sun and the earth
Explanation: Your welcome!
Answer:
Difference Between Lunar Eclipse And New Moon. Lunar Eclipse occurs when the earth comes between the sun and the moon in such a way that it blocks the sun's rays completely from reaching the moon. New moon is the phase of the moon during its monthly orbit when the moon lies between the sun and the earth
Explanation:
Why are scientists researching how to carry out fusion reactions on Earth?
Answer:
Fusion energy which is the exact opposite of fission energy is a more reliable energy that is very sought after by scientist.
Explanation:
Fusion energy does not produce runaway chain reactions so there is no need to worry about meltdowns it also does not produce as much radioactive waist. it's very hard energy to get two, the temperature would need to be about 100 million degrees Celsius six times hotter then the core of the sun.
Fusion has the potential to provide the kind of baseload energy needed to provide electricity to our cities and our industries.
Why do scientists study fusion?
The fusion process has been studied in order to understand nuclear matter and forces, to learn more about the nuclear physics of stellar objects, and to develop thermonuclear weapons.
What is the purpose of fusion energy?Fusion power is a proposed form of power generation that would generate electricity by using heat from nuclear fusion reactions.
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what two factors cause differences i ocean water density
1) salt concentration
2) water pressure
Answer:
Temperature and salt concentration in ocean water cause difference in density.
Explanation:
Density is the measurement of mass per unit of a substance. Pure water without any impurities has a density of 0.998 g/ml at room temperature. The two important factors that cause changes in Ocean water density are
1. Temperature
2. Salt concentration
If we decrease the Ocean temperature its density will increase respectively. while in case of salt concentration density of ocean water will increase with higher salinity.
Which processes produce carbon dioxide as a waste product?
Answer:
Ethyl alcohol fermentation and the krebs cycle.
Explanation: