Answers
Answer:
D. 4
Explanation:
Reflection can be defined as a phenomenon which typically involves a change in the direction of a ray of light or waves as it falls on a smooth surface.
Simply stated, reflection occurs when a ray of light or wavefronts bounces off a smooth surface.
From the diagram provided above, the thin beam of light which illustrates reflection is the fourth because as it hit the surface, it bounced back to the medium from which it was originally propagated with.
Related Questions
Osmosis is the movement of
across a memberane,
Food
water
oxygen
energy
Answers
Answer:
osmosis is the movement of a solvent across a membrane, so water
3. Which of the following is the reactant of photosynthesis?
Answers
Answer: i dont see a question but The reactants for photosynthesis are light energy, water, carbon dioxide and chlorophyll,
Explanation:
im not sure if you need this but while the products are glucose (sugar), oxygen and water.
10 points
One of Earth's characteristics is that it experiences seasons. Higher
temperatures result in summer and lower temperatures result in winter.
Why does the Earth experience seasons? *
A. Temperatures on Earth vary from one location to another, causing seasons.
B. Cloud cover is heavier in the winter, blocking radiation from the Sun and creating
seasons
C. As Earth revolves around the Sun, the hemisphere that is tilted toward the Sun
receives more direct sunlight, causing seasons
D. Earth's orbit around the Sun is elliptical, and Earth is farther from the Sun in winter,
resulting in seasons
Nas
Answers
Answer:
C.
Explanation:
earth's orbit around the sun is an elliptical orbit that requires about 365 1/4 days to complete. When Earth's axis points towards the sun it is summer to that hemisphere
Answer:c
Explanation:
Which of the following are ways that the respiratory system works with the immune
system to keep humans from getting sick? (Choose all that apply
1.) Coughing involves a quick contraction of the diaphragm muscle, forcing air
through the respiratory pathway, and dislodging mucus or other harmful
particles
2.) Alveoli transfer bacteria and viruses to the bloodstream to be disposed of.
3.) Cilia function like a filter, trapping dust and pollen in the nose,
4.) Mucus traps bacteria and viruses to be removed or swallowed.
Answers
Answer:
1.) Coughing involves a quick contraction of the diaphragm muscle, forcing air
through the respiratory pathway, and dislodging mucus or other harmful
particles
3.) Cilia function like a filter, trapping dust and pollen in the nose,
4.) Mucus traps bacteria and viruses to be removed or swallowed.
Explanation:
Coughing involves a quick contraction of the diaphragm muscle, forcing air out while the cilia act like a filter, trapping dust and pollen in the nose. Mucus traps bacteria and viruses to remove or swallow. So, the correct options are A, C and D.
What is Respiratory system?The respiratory system is defined as the network of organs and tissues that help us breathe which includes the airways, lungs, and blood vessels. The muscles that power the lungs are also part of the respiratory system where these parts work together to move oxygen throughout the body and clear out waste gases like carbon dioxide.
Respiratory system works in that way with the immune system by keeping the human from getting sick by bacteria and viruses are removed or swallowed by mucus, while the cilia act like a filter, trapping dust and pollen in the nose.
Thus, coughing involves a quick contraction of the diaphragm muscle, forcing air out while the cilia act like a filter, trapping dust and pollen in the nose. Mucus traps bacteria and viruses to remove or swallow. So, the correct options are A, C and D.
Learn more about Respiratory system, here:
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Nerve labeling help meee plsss
Answers
Answer:
(1) Synaptic Vesicle
(2) Vesicle Releasing Neurotransmitter
(3) Axon Membrane
(4) neurotransmitter
(5) Synaptic Cleft
(6) Postsynaptic Neurotransmitter Receptors
Explanation:
What is the role of oxygen in photosynthesis
Answers
Answer:
as fare as I can remember oxygen is actually a waste product that is produced at the end of a plant's photosynthesis cycle
Explanation:
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Have a nice day and I hope it helps!
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What are some benefits to evolutionary adaptations?
Answers
Answer:
1.A new species
2.Adding to world population
3.More to learn
Explanation:
summarize the future use of dna technology here in 20 words or more
Answers
Answer:
DNA testing has gone mainstream. The cost of DNA sequencing has reduced faster than Moore's Law. With an estimated cost of $100 in the foreseeable future, DNA sequencing becomes more accessible and opens up new use cases, such as wider adoption of population sequencing
Explanation:
Where does carbon dioxide end up?
Answers
Answer:
Only about 50 percent of the CO2 from human emissions remains in the atmosphere. The remainder is approximately equally split between uptake into the land biosphere and into the ocean.
Explanation:
To move the objective lens up and down, I would turn the _________ __________ dial. Which two words complete the sentence? ps: i gave 100 points so answer
Answers
Answer:
knob and the dial are the words
Large cells have more volume on the inside and less space on the outside. (Compared to a smaller cell) Because of this, large cells have trouble;
A) dividing
B) producing daughter cells
C) moving materials in and waste products out
D) making copies of their DNA
Heeeeeellppp plzzzz
Answers
Answer:
C. They have trouble moving materials in and waste products out
How much of New Orleans was flooded when the levees broke?
Answers
Answer:
I believe it's 80%
Explanation:
If we were allowed to fish in these waters, how would it affect the food chain? The dolphins in particula
Answers
Answer:
Things that would/could affect the dolphins:
Driving away food sourcesOverfishing would cause a lack of food sourcesOverfishing could make them along with other species compete for food/survivalAccidents involving dolphins with boats and fishing equipmentExplanation:
Hopefully I helped. IF SO CAN I HAVE BRANLIEST.
A. Structure that organizes motion of chromosomes.
Answers
Answer:
lol NO I MENA CENTROILE
Explanation:
What happens as electrons move along the chain of molecules known as the electron transport chain?
Answers
Answer:
In the electron transport chain, electrons are passed from one molecule to another, and energy released in these electron transfers is used to form an electrochemical gradient. In chemiosmosis, the energy stored in the gradient is used to make ATP.
What is the name of the binding site of RNA polymerase in eukaryotes?
F. operator
G. inducer
H. operon
J. promoter
Answers
Answer:
J. promoter
Explanation:
The promoter is the name of the binding site of RNA polymerase in eukaryotes.
I NEED HELP PLEASE A BIOLOGY QUESTION !!! I have to turn it in now please help !!!
Answers
X-rays carry a small risk of damaging DNA which can lead to cancer. Why are they still used by doctors?
Answers
Answer:
Despite the risk of DNA damage and cancer production, X-rays are still used by doctors because the benefit of this diagnostic study outweighs the risk, which in most cases is very low.
Explanation:
Diagnostic radiology studies, such as X-rays and CT scans, are procedures that use ionizing radiation to obtain images of the inside of the body. Prolonged or constant exposure to this type of radiation is harmful because there is a risk of producing damage to DNA and can lead to the development of cancer.
However, the use of X-rays and CT scans are non-invasive diagnostic methods whose information provides an accurate diagnosis of a disease and, when well used, has a very low risk of organ damage.
Ionizing radiation is measured in milisieverts (mSv) and exposure from radiologic studies is in the range of 0.1 to 10 mSv per study. The amount of ionizing radiation a person is expected to receive per year from exposure to their environment is in the order of 3 to 5 mSv per year, so diagnostic imaging studies involve a low risk of organ damage.
Doctors continue to use X-rays as a diagnostic study, despite the risk of cancer and DNA damage, because the benefit —accessible, noninvasive, and cost-effective— far outweighs the risk.
5
Recent studies looked at how fog may play a role in the water transport of the coastal
redwoods. Which is true?
A
The fog helps to replenish vital ground water.
B
The fog lowers the evaporation rate at the needles.
C
The fog can decrease the energy demand of the trees.
D
All of the above
Answers
HELPPPP pls I need answer fast like flash
Answers
Answer:
and im here hi
Explanation:
was i fast enough?
BIOLOGY PLS HELP!!! A 5% salt cell is placed in a 15% salt solution. What type of solution is this cell in?
a) hypotonic
b) hypertonic
c) isotonic
Answers
Answer:b
Explanation: the solution is more concentrated (hyper) than the cell is
hyper means more than and hypo means less than like hyperthermia (too hot) or hypothermia (too cold)
which of the following is an example of positive feedback?
Answers
Answer:
uuh theres not an example please comment under this post to me the options
Explanation:
What needs to happen for a species to form
Answers
Answer:
New species form when individuals from diverging populations no longer recognize one another as potential mates, or opportunities for mating become limited by differences in habitat use or reproductive schedules.
Explanation:
In order to extract DNA from strawberry cells, what will need to happen at the cellular level?
Answers
Answer:
Tiene que romperse la membrana plasmática para poder acceder al núcleo de la célula y posteriormente romperse también la membrana nuclear para dejar libre al ADN
Explanation:
Sexual reproduction in animals depends on the production of gametes.
Which of these processes produces gametes in animals? *
Mitosis
Fertilization
O Meiosis
Binary fission
Answers
The process that produces gametes in animals is meiosis.
What is MeiosisMeiosis is a specialized type of cell division that occurs in the reproductive cells, or germ cells, of animals. It involves two rounds of cell division, resulting in the production of four haploid daughter cells, each with half the number of chromosomes as the parent cell.
During meiosis, the genetic material is shuffled and recombined through processes such as crossing over and independent assortment. This genetic variation contributes to the diversity of offspring produced through sexual reproduction.
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Pls can someone help me out by answering these
Answers
Answer:
the diagram is not clear enough.
Answer:
A,C,D
Explanation:
1. Show the possible outcomes if a women who is a carrier for baldness has children with a normal man.
Can they have a son with baldness?
Answers
Answer:
Yes they can.
Explanation:
I defined the genotypes and possible outcomes in the image attached
brainliest:
Describe how a carbon atom is released from a fossil fuel like coal and travels into the atmosphere as a gas. How does it then end up in living things like plants and animals? Explain how carbon ends up back in the ground. Use the following terms in your typed response: CO2, C6H12O6, atmosphere, lithosphere, hydrosphere, biosphere, carbon sink, carbon source.
Answers
Explanation:
Animals and plants need to get rid of carbon dioxide (c02), this process is called respiration. Respiration happens when the plant/animal breaths in air and releases it as carbon, carbon then moves from fossil fuels to the atmosphere where they are burned. When humans burn fossil fuels to power cities, power plants, cars, and trucks, most of the carbon quickly enters the atmosphere as carbon dioxide gas.
hey guys I wanted to ask when is spring cleaning because my parents think it occurs in the middle of January
Answers
Answer:
april
Explanation:
Answer:
April 1st
Explanation:
( PLEASE HELP NEED A REAL ANSWER! )
Individuals with advantageous traits for their environment have a better chance of surviving
than those with less helpful traits. Explain how this is demonstrated in the moth information
above. Use specific information and examples.
Answers
Answer:
The moths with darker coloring lived long enough to reproduce and passed the trait on. The light peppered moths were easier for predators to spot on the dark soot covered trees so they died first.
Explanation: