Stars seem to disappear from the city skyline at night due to light pollution caused by artificial lights.
What is light pollution?It is the excessive or less use of artificial light that disrupts the natural patterns of wildlife, disrupts human sleep, and conceals the stars in the sky.
Why do stars disappear from the city skyline?It is because in the city skyline there is excessive use of artificial lights and there is not a portion left which is not encroached by artificial lights.
Hence, option d) light pollution is the correct answer.
To learn more about light pollution, stars, and artificial light, here,
https://brainly.com/question/13494333
#SPJ2
How is the use of hydroelectric power related to the sun?
a. The sun powers the water cycle.
b. Solar cells collect hydroelectric energy.
c. Hydroelectric power can only be collected in sunlight.
d. Sunlight combines atoms in the air to form molecules of water.
Answer:
n
Explanation:
Answer:
the answer is A
Explanation:
The sun powers the water cycle and creates precipitation and the dams run off of water from the rain added to the river or lake.
what happens in the metaphase
Answer: Metaphase is a stage in the cell cycle where all the genetic material is condensing into chromosomes. ... During this stage, the nucleus disappears and the chromosomes appear in the cytoplasm of the cell. During this stage in human cells, the chromosomes then become visible under the microscope.
what are the briefly information about plant cell
Answer:
Plant cells are the basic unit of life in organisms of the kingdom Plantae. They are eukaryotic cells, which have a true nucleus along with specialized structures called organelles that carry out different functions. Plant cells have special organelles called chloroplasts, which create sugars via photosynthesis.
The rate at which molecules, such as water and oxygen, enter a cell is determined by the–
Answer:
Explanation:
Cell membranes act as barriers to most, but not all, molecules. Development of a cell membrane that could allow some materials to pass while constraining the movement of other molecules was a major step in the evolution of the cell. Cell membranes are differentially (or semi-) permeable barriers separating the inner cellular environment from the outer cellular (or external) environment.
Water potential is the tendency of water to move from an area of higher concentration to one of lower concentration. Energy exists in two forms: potential and kinetic. Water molecules move according to differences in potential energy between where they are and where they are going. Gravity and pressure are two enabling forces for this movement. These forces also operate in the hydrologic (water) cycle. Remember in the hydrologic cycle that water runs downhill (likewise it falls from the sky, to get into the sky it must be acted on by the sun and evaporated, thus needing energy input to power the cycle).
PLEASE HELP!!!! 30 points!!!! Start a discussion on Homeostasis. List 2 facts and 2 opinions.
Answer:
facts: The tendency to maintain a stable, relatively constant internal environment is called homeostasis. The body maintains homeostasis for many factors in addition to temperature. For instance, the concentration of various ions in your blood must be kept steady, along with pH and the concentration of glucose.
opinions: Homeostasis is the tendency to resist change in order to maintain a stable, relatively constant internal environment. Homeostasis typically involves negative feedback loops that counteract changes of various properties from their target values, known as set points.
Explanation:
Answer:
Homeostasis is the tendency to resist change in order to maintain a stable, relatively constant internal environment.
Homeostasis typically involves negative feedback loops that counteract changes of various properties from their target values, known as set points.
In contrast to negative feedback loops, positive feedback loops amplify their initiating stimuli, in other words, they move the system away from its starting state.
Biological systems like those of your body are constantly being pushed away from their balance points. For instance, when you exercise, your muscles increase heat production, nudging your body temperature upward. Similarly, when you drink a glass of fruit juice, your blood glucose goes up. Homeostasis depends on the ability of your body to detect and oppose these changes.
Explanation:
The mass of a proton is the same as the mass of a neutron
True or false
Answer:
This statement is true.
Explanation:
Both protons and neutrons have a mass of one.
Hope this helps :)
Answer:
The proton and neutron have similar mass with the mass of the neutron slightly larger than that of the proton. Each of these particles has a mass approximately 1800 times greater than that of an electron. ... The atomic number of an element is equal to the number of protons in the nucleus of an atom of that element
Does this look right??
Answer:
I have no hecking clue
but im gonna have to say yes
Explanation:
Where within the cell does the entire process of respiration take place?
Answer:
mitochondria THE POWERHOUSE OF THE CELL
Answer:
Both inside and outside the mitochondria
Explanation:
The anaerobic stage of cellular respiration takes place outside the mitochondria, and the aerobic stage of the process takes place within the mitochondria. Chloroplasts are involved in photosynthesis but not in cellular respiration.
For this cell division, you can see that 4 daughter cells are made that have half the genetic information as the original. What type of cell division is this?
a) Diffusion
b) Mitosis
c) Meiosis
d) Photosynthesis
Answer:
The cell division where 4 daughter cells with half of the genetic information of the original are obtained is meiosis (option c).
Explanation:
Meiosis is a type of cell division through which sex cells or gametes are obtained. It is a reductive division, since the daughter cells resulting from the process contain half of the chromosomal charge with respect to the original one.
In the process of meiosis, four haploid cells are obtained from a diploid cell, each of which is involved in the reproduction of the species. This mechanism of division occurs in two stages, called meiosis I and II.
The other options are not correct because:
a) Diffusion: it is a passive trans-membrane transport mechanism.
b) Mitosis: is the cellular division of somatic cells, where the result is two daughter cells identical to the original.
d) Photosynthesis: is the mechanism by which plants obtain energy and nutrients, from solar energy.
How will water volume, incline gradient, and temperature affect the energy
of a stream?
Answer: Water Volume: The volume of water(discharge) in a stream affects the energy(velocity) of that stream. As the volume of the water in the stream increases, the velocity increases. ... Incline gradient: The incline gradient is also known as the slope of the stream.
Explanation:
after the process of mitosis, if the resulting cells have 48 chromosomes, how many did the parent cell have?
a. 48
b. 23
c. 92
d. 50
Answer:
B. 23
Explanation:
A cell that starts out with a diploid number of 46 chromosomes and ends up with a haploid number of 23 chromosomes. What process did this cell go through? answer choices ... Mitosis occurs in both body cells and sex cells while meiosis is only in sex cells. ... Daughter cells are produced with only half the chromosomes of the parent cell.
Which of the following is NOT a unique property of water?
A. Ice floats on the surface of lake
B. Water covers most of Earth's surface
C. Water cools very rapidly
D. Water causes evaporative cooling
Answer:
Water covers most of Earth's surface
Explanation:
I chose Water covers most of Earth's surface because this is a fact, NOT a unique property. A property is a thing the item has.
3. Burning fossil fuels results in which of the following?
O A. deforestation
O B. global climate change
O c. pollution of water
Answer:
C . pollution of water
Explanation:
Explain "Survival of the Fittest" and how it
relates to natural selection.
Answer: Natural selection is selection due to environmental conditions from random genetic mutations in a population. Among the variants in a population, some will be slightly better adapted to conditions and will eventually out-compete the rest of the population. Survival of the fittest actually means survival of the best adapted, or fittest for purpose, i.e. to survive and thrive.
Explanation: This phrase has caused much miunderstanding of the evolutionary process. ‘Fittest’ has been equated with biggest, or strongest or fastest, but this was a description originating in the nineteenth century, when it was understood quite differently.
Natural selection arises from genetic variation in a population. Jaques Monod, an esteemed scientist, described evolution as where chance and opportunity meet. Chance lies in the genome of a species, random mutations, and the resulting genetic variation in the population.
Opportunity lies in the environment. Environmental change creates opportunities for some, extinction for others. Opportunities can also be from exploiting new environmental niches.
Natural selection is the process by which some random genetic variation gives some of a population a competitive advantage. competition eventually results in one population out-competing all others in its niche. The end-result of competition in nature is monopoly.
But this process continues and further random mutations can result in another population becoming better adapted. That is the actual meaning of survival of the fittest: in modern terms we might say ‘fittest for purpose’, that is, the species orvpopulation best adapted to survive and thrive in that environment.
Weather balloons are sent into the atmosphere to record: (Select all that apply)
humidity
temperature
wind
pressure
precipitation
Answer:
temperature pressure moisture
Explanation:
From my notes hope this helps.
Answer:
temperature pressure moisture
Explanation:
The leaves of a plant absorb sunlight in order to help the plant undergo photosynthesis.
A plant with large, broad leaves would likely be able to absorb more sunlight than a plant with small, narrow leaves. The broad-leafed plant would therefore be better suited for living in an area that does not receive much sunlight.
Which plant would likely live in a shady area which only receives sunlight for a small portion of the day?
A.
none of these
B.
plant Z
C.
plant Y
D.
plant X
Help please asap!!
the major difference between judaism and christianity is that christiand believe what
1 jesus is the son of god
2jesus and abraham were both sons of god
3) jesus is only a prophet
4) christianity is polytheistic
Answer: #3 - Judaism emphasizes the Oneness of God and rejects the Christian concept of God in human form.
Genetics is the scientific study of heredity? True False
Answer:
true
Explanation:
genetics is the study of heredity in organisms and heredity is the process of passing traits from parents to offsprings
Answer:
Scientific Study
Explanation:
Genetics is the study how heritable traits are transmitted from parents to offspring
In ecosystems, biotic an abiotic factors influence one another. Give three examples of an interaction between a biotic and abiotic factor in any of the marine ecosystems from the chart. (Use the back for more room).
Answer:
One of the most critical interactions in an ecosystem between the biotic and abiotic environment is photosynthesis, the base chemical reaction that drives most life on earth. Plants and algae use sunlight, water and carbon dioxide to create the energy they need to grow and live via photosynthesis.
Hope this helps!
Methylmercury biomagnifies in an ecosystem, meaning its concentration __________ as it moves through each higher trophic level.
A. equalizes
B.does not change
C. decreases
D. increases
Answer:
D - Methyl Mercury Increases
Explanation:
The word Biomagnification has a simple explanation:
To magnify is to make bigger, meaning that the substance in question is becoming more abundant.
The "bio" part of this word is referring to the fact that it is a biological substance you are dealing with.
Question: "Methylmercury biomagnifies in an ecosystem, meaning its concentration __________ as it moves through each higher trophic level."
Answer: "The concentration of the methylmercury increases as it moves through each higher trophic level. Hence, the methylmercury biomagnifies in the ecosystem. So, based on the options given prior to the question above, Option D) increases would be your best bet."
PLEAe help mE ASAP ASAP
According to the geological time scale,
mammals
evolved after the first insects evolved.
Answer:
after the evolution of insects the first four legged species or the tetrapods evolved in shallow freshwater habitats from the intermediate species approximately 397 million years ago.
Explanation:
the tetrapods went on conquering the land giving rise to amphibians, reptiles, mammals and birds.
Answer:
You are correct
Explanation:
According to the geological time scale, mammals evolved after the first insects evolved.
What Energy Transformations Occur Inside The Flashlight When It Is Turned On?
Answer:
When the flashlight is turned on, the chemical energy is first transformed into electrical energy and then into light energy. CHEMICAL bonds. It is released during a chemical reaction (change). by flowing electrons (negatively charged particles).
Explanation:
Hope this helps
figure 9-8 cellular respiration
Cellular Respiration is the process that takes place in cells to convert food into energy. This process is also known as internal respiration.
What kind of organisms are rotifers?
multicellular
vertebrates
photosynthetic
unicellular
Answer:
Multicellular
Explanation:
they live in fresh water ponds and feeds off of some single cellular bacteria and organism.
What is the relationship between a protein, the cell, and DNA?
A. DNA is produced by a protein which is produced in the cell
B. Protein is composed of DNA which is produced in the cell
C. A cell is composed of DNA and protein
D. DNA controls the production of protein in the cell
Answer:
B. Protein is composed of DNA which is produced in the cell
Explanation:
Answer:
B. Protein is composed of DNA which is produced in the cell
Explanation:
The option (B) is the relationship between a protein, the cell, and DNA.
whicht of the following nutrients is primarily used or buiding and repairing of demaged cells and tissues
Answer: protein ..i hope this helped!
Explanation: protein is a nutrient used to repair our body cells (like blood and muscle cells).
What is a push or pull that can cause motion known as
Answer: A force is a push or a pull that causes an object to move, stop, or change speed or direction. Every time you push or pull something you apply a force. Forces transfer energy.
Explanation: In physics, a force is any interaction that, when unopposed, will change the motion of an object. A force can cause an object with mass to change its velocity, i.e., to accelerate. Force can also be described intuitively as a push or a pull. A force has both magnitude and direction, making it a vector quantity.
A force is a push or a pull that causes an object to move, stop, or change speed or direction. Every time you push or pull something you apply a force. Forces transfer energy.
What is Force?In physics, a force is any interaction that, when unopposed, will change the motion of an object. A force can cause an object with mass to change its velocity, i.e., to accelerate.
Force can also be described intuitively as a push or a pull. A force has both magnitude and direction, making it a vector quantity.
A push or pull that an object experiences as a result of interacting with another item is known as a force. Every time two items interact, a force is exerted on each of the objects.
Therefore, A force is a push or a pull that causes an object to move, stop, or change speed or direction. Every time you push or pull something you apply a force. Forces transfer energy.
To learn more about Force, refer to the link:
https://brainly.com/question/13191643
#SPJ6
list the types of infectious agents that may infect the human body
A. fungi, hookworms sore throats bugs
B. immune system diseases viruses fungi
C. infection sickness bacteria attackers
D. viruses bacteria, fungi, and parasites
Answer:
D. viruses bacteria, fungi, and parasites
Explanation:
These agents are commonly grouped as viruses, rickettsia, bacteria, fungi, and parasites. The disease that these organisms cause is only incidental to their struggle for survival. Most of these agents do not require a human host for their life cycles. Many survive readily in soil, water, or lower animal species and are harmless to humans.Answer:
d
Explanation:
Give an example of how structure and function are related on the cellular level.
Answer:
Function and structure are related, because of a certain structure a living thing make contain makes the object function the way it does. ... The relationship of a structure and function is the structuring levels from molecules to organism ensure successful functioning in all living organism and living system
Explanation: