Answer:
B
Explanation:
The answer is B because A is an energy pyramid, and it cannot be C because a food web is not a cycle as it doesn't restart.
- As viewed from Earth, most stars appear to move across the sky each night because (1) Earth revolves around the Sun (3) (2) Earth rotates on its axis (3) stars orbit around Earth (4) stars revolve around the center of the galaxy Which real motion causes the Sun to
Answer:
stars revolve around the center of the galaxy which really motion causes the saun to
what are some ideas to help reduce injury during physical activity?
What happens during anaphase of the cell cycle?
Chromosomes condense.
Chromosomes line up.
Chromosomes uncoil and the nucleus reappears.
Chromosomes are pulled apart.
During anaphase of the cell cycle the chromosomes are pulled apart. That is option D.
What is cell cycle?Cell cycle can be defined as the stages that brings about the growth and maintenance of a living organism.
The various stages of cell cycle include the anaphase which is when the chromosomes are pulled apart and they move to the opposite side of the cell.
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a decline in birth rates could lead to an increase in the percentage of elderly people in a population. How might this impact a country’s economy?
Answer:d
Explanation:
correct
When a tastant enters the mouth, what are all the structures it passes on its way to
becoming a fully
processed neural signal? Fill in the blanks below.
The food enters the mouth, passing the [1] (tip) of the tongue. It is moved around by the
motion of the tongue and teeth as the food is chewed. Its movement is facilitated by [2]
on the tongue, which are jagged, aiding them in their ability to move food. [3], on the [4]
of the tongue, and [5], located [6], come in contact with the [7].
Both types of papillae have [8] that have receptors for the individual tastes-sweet, sour,
salty, umami (savory), and bitter. Once a tastant is bound to the receptor, it creates a
signal that travels through one of three cranial nerves, depending on the location of the
taste bud. For a taste bud located on the front of the tongue, the signal travels through
the [9]. For a taste bud located on the back of the tongue, the signal travels through the
[10]. For a taste bud located on the middle and back of the tongue, the signal travels
through the [11]. These signals travel to the [12] of the brainstem, where they are
relayed to the [13] for higher processing.
The information given about taste and the tongue is explained below.
How to explain the tongue?
The food enters the mouth passing the TOT (tip) of the tongue. It is moved around by the motion of the tongue and teeth as the food is chewed. Its movement is facilitated by the taste buds on the tongue which are jagged, aiding in their ability to move food.
Fungiform papillae on the side of the tongue and filiform papillae located on the dorsal surface of the tongue come in contact with the tastant.
Both types of papillae have taste buds that have receptors for individual tastes -sweet, sour, salty umami (savory), and bitter. Once a tastant is bound to the receptor it creates a signal that travels through one of the three carnival nerves depending on the location of the taste buds. For taste buds located on the front of the tongue, the signal travels through the facial nerve.
For taste buds located in the middle of the back of the tongue, signals travel through the glossopharyngeal nerve. The signals travel to the nucleus of the solitary tract of the brainstem, where they are relayed to the thalamus for higher processing.
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In Town A, the water has heavy metal Q, and the residents who drink it have long-term kidney damage. In Town B, the water has heavy metal Q and X, and the residents who drink are healthy. What conclusion can be made about the two metals?
The interaction between the metals Q and X makes metal Q less toxic.
What are heavy metals?Heavy metals are those metals that are known to cause some type of damage in the body. Many of the heavy metals have been associated with cancer and organ damage.
If the residents of Town B drink a water that contains heavy metals Q and X and they are healthy, it then means that the interaction between the metals Q and X makes metal Q less toxic.
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Question 22 of 25
Which sequence best explains the process of desertification?
A. Lack of plant growth → Loss of topsoil → Nutrient depletion →
Overfarming
B. Nutrient depletion → Lack of plant growth → Overfarming → Loss
of topsoil
C. Overfarming → Lack of plant growth → Loss of topsoil → Nutrient
depletion
D. Overfarming → Nutrient depletion → Lack of plant growth → Loss
of topsoil
SUBMIT
The sequence that best explains the process of desertification is as follows: Overfarming → Nutrient depletion → Lack of plant growth → Loss of topsoil (option D).
What is desertification?Desertification is the process by which a geographic region or vegetation becomes a desert.
Prior to desertification, the following process occurs:
Overfarming; this involves the planting of excessive crops on a piece of landNutrient depletion; nutrient gets depleted due to excessive use by plantsLack of plant growth; reduction in plant growth due to nutrient depletionLoss of topsoil due to erosionTherefore, the sequence that best explains the process of desertification is as follows: Overfarming → Nutrient depletion → Lack of plant growth → Loss of topsoil
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Answer:
C
Explanation:
good luck
6. Which of the following statements about protists is true?
A. Protists are all heterotrophic.
B. Protists can't live in freshwater.
C. Protists are a catch-all group for eukaryotes that aren't plants, fungi, or animals.
D. Protists are all parasitic.
The Correct answer is... C. Protists are a catch-all group for eukaryotes that aren't plants, fungi, or animals.
Explanation:Let's break it down!
~~~
A. Protists are all heterotrophic.
The given statement in answer choice A. is (partially correct) FALSE.
The following statement is TRUE... The protist is classified as either autotrophs or heterotrophs.
~~~
B. Protists can't live in freshwater.
The given statement in answer choice B. is also FALSE.
TRUE... Nearly all protists exist in some type of aquatic environment, including freshwater.
~~~
C. Protists are a catch-all group for eukaryotes that aren't plants, fungi, or animals.
The given statement in answer choice C. is CORRECT!
TRUE... As the catchall term for eukaryotic organisms that are not animals, plants, fungi, or any single phylogenetically related group, it is not surprising that few characteristics are common to all protists.
~~~
D. Protists are all parasitic.
The given statement in answer choice D. is (partially correct) FALSE.
TRUE... Many protists are pathogenic parasites that must infect other organisms to survive and propagate.
~~~
Therefore, the correct answer choice is C.
I hope this was helpful! (✿◠‿◠)
C. Protists are a catch-all group for eukaryotes that aren't plants, fungi, or animals.
What are protists?Protists are a diverse group of eukaryotic organisms that are characterized by their unicellular or simple multicellular structure. They are classified as a kingdom of life and include a wide range of organisms, including algae, slime molds, and protozoa.
Protists are classified as a catch-all group because they are not plants, fungi, or animals, and they do not fit neatly into any other category. Protists can be heterotrophic or autotrophic, and they can live in a variety of environments, including freshwater, saltwater, and soil. Some protists are parasitic, but not all of them are.
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howard is working with a cleaning solution that contains sodium hydroxide although he is using gloves when he pours the solution to dilute it for cleaning he spills a bit on his arm his arm feels slimy to touch and now has a burn mark what is the chemical route to entry
The chemical route to entry in the given scenario will be by absorption. The correct option is d.
What is absorption?A process by which one thing becomes a part of another, or the process by which something soaks, either literally or metaphorically is referred to as absorption.
The missing options are :
InhalationIngestionInjectionAbsorptionAs in the given scenario, the solution gets spilled on the arms of Howard and is having a burn mark, which means the solution is absorbed in the skin and is the chemical route of entry.
Thus, the correct option is d.
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Which of the following is a gene abnormality in which two nonhomologous parts rearrange and fuse together?
A. Deletion
B. Duplication
C. Translocation
D. None of the above
Answer:
translocation is the only one that fuses together
Explanation:
How were Burmese Pythons introduced into the Florida Everglades?
Write the dental formula of a two year old?
Answer:
Dental formula of a 2 year old child is:- 2 1 2 (I C P ) I::-Incisor C::-Canine P::-Pre molar
What river is the main source of the water in Lake Mead and where does that water come from?
Answer:
The river that is the main source of the water in Lake Mead is the Colorado River. The Colorado River is a river in the western United States. The river is about 1,450 miles long. The river starts in the Rocky Mountains of Colorado. The river then flows through Utah, Arizona, Nevada, and California.
Explanation:
In a recent survey of students who graduated from a large public high school, nine out of ten students reported that they passed biology with a grade of seventy-five percent or higher. What further data could be produced to be sure that this information is accurate?
Why are scientists certain that the climate system is warming?
Answer:
Ice cores drawn from Antarctica, Greenland, and tropical mountain glaciers proves that Earth's climate responds to changes in greenhouse gas levels. You can also find ANCIENT evidence in tree rings, coral reefs, layers of sedimentary rocks, and ocean sediments.
( re word it to however you would've said it if possible.)
Explanation:
I learned about this already, and had to do deep research when I did.
What is the purpose of cellular respiration?
to create useable energy from glucose
to get oxygen and nutrients to all cells of an organism
to create useable energy from light
to release water into our bodies
Answer:
to create useable energy from glucose
Explanation:
energy is needed for all bodily functions
Which of these vascular plants produce seeds?
A. Club mosses
B. all of these choices produce seeds
C. horsetails
D. pine trees
E.ferns
The vascular plants that produces seeds are pine trees. Thus, option D is correct.
What are vascular plants?
The type of plants in which a well developed vascular bundle is present in order to transport food, nutrients, as well as water from roots to the various parts of plants is known as vascular plants and the vascular plant that produces seeds is pine tree.
The process of germination has been defined as the process during which the organism grows from a spore or the seed and it has been applied to the sprounting of a seedling from the seed of a gymnosperms or an angiosperms.
The process of the germination just depends upon the temperature as well as availability of the water and if the temperature rise or there will be increase in the temperature the chance of the germination also increases. More increase in the temperature will lead to failure in the process.
Therefore, The vascular plants that produces seeds are pine trees. Thus, option D is correct.
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Which star is in its Super Giant Phase?
The star which is in its Super Giant Phase is the red supergiantsstar
What is a star?A star can be defined as fixed luminous body in the night sky which is large and also remote incandescent bodies.
However, at this Super Giant Phase, the gravitational force of the star is balanced by the immense outward radiation pressure caused by the intense helium fusion taking place in the core.
So therefore, the star which is in its Super Giant Phase is the red supergiantsstar
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Explain the evidence that scientists use to support the Big Bang Theory.
Answer:
See below.
Explanation:
A lot of the evidence is related to the fact that light takes time to travel, one of the core principles underlying relativity.
Space itself is expandingLight has characteristics resembling waves, particularly the wavelength (or frequency), which humans see as color. The doppler effect occurs when an object emits light while moving, compressing or stretching the wavelength and altering the color of the light. The light from a galaxy traveling away from us will look "stretched out," or redshifted, to observers on Earth. A moving object's light is either compressed or blueshifted. This nomenclature is based on the fact that blue light has the largest wavelength and red light has the smallest wavelength for visible light. More frequently than not, invisible light like x-rays or radio waves are used to measure the impact of galaxies.
When we do gaze up at the galaxies in the sky, we notice something unsettling: it seems as though everything in the cosmos is frantically attempting to get away from the planet. Everything is far more redshifted than we would anticipate if galaxies were just randomly cruising through space. It is highly improbable that the earth is at the heart of a galaxy explosion that spans the entire universe in the post-Copernican era of science. Instead, we come to the conclusion that space itself is expanding and that the redshift effect would apply everywhere in the cosmos, not only on Earth.
The fact that space is expanding implies that everything was more compacted in the past. Theoretically, there must have been a time in the past when everything was maximum compressed if space has always been increasing.
We can see the remnants of the big bangSince light travels slowly, whenever we gaze into the remote reaches of the cosmos, we are also doing so in the past. By the turn of the 20th century, technology had evolved to the point where humanity had seen everything inside the observable universe. We discovered that a thick plasma "fog" of stuff from the early cosmos surrounds us on all sides in the form of cosmic background radiation. This suggests that the cosmos did not always exist in its current form. Stars and galaxies were created from a sort of primordial soup that subsequently cooled and concentrated.
We can learn some details about the characteristics of the cosmic background radiation, which will help us understand what the early cosmos was like. The evidence suggests that it was extremely hot and that stable stuff, such atoms and molecules, needed some time to form.
It can be used to explain known phenomenaOne of the best tests for a theory is if it can explain a well-known but yet unrecognized phenomena that is unrelated to the original motivation behind its development. Because the first nucleosynthesis only produced the lightest atoms, the big bang hypothesis, for instance, explains why there is a considerably greater abundance of hydrogen and helium in the universe than heavier elements.
Appendix: Problems and open questionsThe fact that both quantum and relativistic physics apply to the big bang is one of the challenges in researching it. These two models don't work well together, as you may be aware. One issue is that gravity is fundamentally weaker than the other forces, making it very hard to measure gravitational effects at the quantum level. As a result, there is no known quantum explanation of gravity.
Dark matter and dark energy are further issues. Simply put, dark matter is "additional" stuff with gravity but no other interactions. Since dark energy is in charge of space's perpetually accelerating expansion, it is much more intimately associated with the big bang idea.
The baryon asymmetry, an issue with antimatter, is another issue. When matter and antimatter come into contact, they completely destroy one another and transform into energy. When the great bang happened and subatomic particles first started to form, there was only a tiny bit more matter than antimatter; as a result, all that was left was matter. The galaxies are currently made up of this small amount of additional stuff. It is not understood why different amounts of matter and antimatter are produced.
However, the big bang theory is by far the most reliable hypothesis for the early universe's development. It is at the leading edge of contemporary science, therefore it's critical to grasp what evidence is actually being given and to accept new discoveries with a grain of salt.
What are the reactants in Photosynthesis?
A. Water and Carbon dioxide
B. Oxygen and Carbon Dioxide
C. Glucose and Light energy
D. Water and Oxygenation
Answer:
My best guess would go with A
Explanation:
The reason why is that Photosynthesis needs sunlight, water and carbon dioxide to start reactants.
Imagine an ecosystem with the following populations:
Level of Food Chain Types of Organisms
Producers
berry bushes
fruit trees
oak trees
maple trees
Primary consumers
rabbits
mice
squirrels
crickets
ants
grasshoppers
Secondary consumers
foxes
owls
spiders
hawks
Tertiary consumers
wolves
bears
Draw a food web representing the flow of energy in the ecosystem. Be sure to include all of the populations. If necessary, research each animal's diet to determine its place in the food web.
After completing your food web, answer the questions below.
If the ecosystem is balanced, which populations should be the largest? Which should be the smallest?
The food web is as shown in the attached image.
If the ecosystem is balanced, the highest population will be producers while the least population will be the tertiary consumers.
What is a food web?
A food web is an feeding relationship between organisms which shows interconnected relationships between different organisms in the habitat.
The food web of the producers, primary consumers, secondary consumers and tertiary consumers is found in the attached picture.
If the ecosystem is balanced, the populations that will be most is producers while the least population will be the tertiary consumers.
In conclusion, a food web shows the relationship between the organisms in the habitat in the form of a web.
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What five intermolecular forces of attraction are important for tertiary structure?
Explanation:
for protein the force of attractions for tertiary structure are
(i) ionic bonds
(ii) hydrogen bonds
(iii) van der Waals forces and electrostatic bonds
(iv) disulphide linkages
(v) Hydrophobic Interactions.
Identify the following:
a. the original cell that produces new cells through mitosis or meiosis
b. a group of four chromosomes that takes part in meiosis
c. the sex cell produced by the male
d. a unit of DNA that determines a specific hereditary trait in an organism; comes in pairs
e. a twisted and coiled strand of DNA within the nucleus that carries the codes for reproductive traits such as eye and hair color
f. the process through which organisms produce offspring; creation of a new individual
g. the creation of a new cell or organism identical to the parent; does not involve the union of sex cells
h. the cell part that holds the chromosomes and DNA that controls all cell activities
i. one of the two cells created when a parent cell divides through mitosis
j. a thin wall or covering that surrounds the nucleus of the cell
Answer:
Explanation:
a Germ cells
b Sister chromatids
c Sperms
d genes
e chromosome
f reproduction
g cloning
h nucleus
i sister cells
j nuclear envelope
8. In what year was the concentration of carbon dioxide 355ppm? *
о 2012
2010
о 1980
O 1990
Answer:
slightly after 1990 (when it was 354.19)
How do results prove the fish are genetically modified?
If both parents are fluorescent, can they produce a regular-colored offspring?
What conclusions came from this experiment?
The results show that fish are GMO when they fluoresce at night, GFP fish produce colored offspring when germinal cells are modified and conclusions indicate that transgenesis is viable.
What is the GFP protein?The Green fluorescent protein (GFP) is a protein used in molecular biology to produce genetically modified organisms (GMOs).
The GFP gene can produce stable fluorescent offspring if the transgenesis technique modifed the germinal line.
In conclusion, we can conclude that fish were genetically modified because they express the GFP protein and produce fluorescent offspring only when the germinal line was modified.
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A marine biologist took a sample from a hot spring. The cell has no nucleus and looks different from bacteria found in water.
A marine biologist took a sample from a hot spring. The cell has no nucleus and looks different from bacteria found in water is called archaea.
Who are the Archeas?Microbicidal archaea that are characterized as morphologically similar, but have different characteristics that were procaryated in a distinct group: the Archaea.
In this case, is Archeas because the cell has no nucleus and looks different from bacteria found in water.
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Obviously charged objects attract each other this attraction holds electrons and atoms and holds atoms to one another in many compounds however earnestructs model of the atom field to explain why electrons not pulled into the automatic nucleus by this attraction what change to the atomic model helps solve the problems seeing Rutherford's model
The fact that electrons occupy certain specified energy levels in which they are radiation less solves the problems associated with the Rutherford model.
What is the Bohr-Sommerfeld Model?According to the Bohr-Sommerfeld Model of the atom, the electrons in an atom tend to occupy certain specified energy levels in which they are radiation less.
Recall that following from the Rutherford model and the and the Maxwell's laws, an accelerating charge radiates energy. Thus, the bottle neck is removed by assuming that electrons occupy specific energy levels in which they do not move about an loose energy.
This eliminates the possibility that the electron could spiral into the nucleus.
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If mitosis goes correctly, one diploid cell splits to form:
-none of the above
-two identical haploid cells
-one diploid and one haploid cell
-two identical diploid cells
it is curcial the process of mitosis is error free. this is because otherwise healthy cells can
Answer:
It is really crucial that the process of mitosis is error free, otherwise, health cells can grow into giant super cells, also known as cancerous cells.
The process of mitosis and the cycle of the cell is highly regulated so that uncontrolled division of cells do not occur. Mitotic cell division also needs to be error free so that normal daughter cells are produced.
This is why there are different checkpoints in the cell cycle and mitotic cell division itself. Without regulation and checkpoints, health cells might divide uncontrollably and form giant super cells. In reality, these cells are known as cancer cells.
What is being nervous?
_
High Law View Rahul.
Answer:
Nervousness is a common feeling brought on by your body's stress response. This involves series of hormonal and physiological responses that help prepare you to handle a perceived or imagined threat.