AYUDA ES PARA HOY es de Ciencias Naturales ¿Por que a veces podemos ver la Luna de día , a veces , lo podemos ver de noche y a veces , no lo podemos ver?

Answers

Answer 1

Answer:

Porque contigo yo ya escogi?

Ahora mi corazon ta supri

Bien simple lang iyo ta pidi

Era cinti tu el cosa yo ya cinti.

Explanation:

.;(


Related Questions

What process is described in the situation above? a. respiration c. feedback inhibition b. circulation d. cellular activity

Answers

Question isn't complete but explanation will be given for each option

Answer and Explanation:

A. Respiration: respiration occurs when organisms take in oxygen, combine it with glucose to release carbon dioxide, water and ATP. Respiration is different from breathing since it is more of a biochemical process than physical process.

B. Feedback inhibition: feedback inhibition occurs in metabolism when an the end product of an enzyme inhibits further production of end products by the enzyme in order to reduce concentration and reduce waste that occurs when more is produced than needed by cells.

C. Circulation: circulation involves the heart, arteries and veins whereby the heart pumps blood( which carries oxygen,hormones and nutrients) and the arteries move them in circulation through the body and back to the heart through the veins, giving off waste products.

D. Cellular activity: cells are the most basic form of life known. Cellular activities are basically the activities of cells in an organism. Examples of cellular activities include: work of enzymes in digestion, cell division, synthesis of protein from amino acids etc.

Answer: C

Explanation:

Just did the quiz


When we ingest food containing large molecules such as lipids, carbohydrates,
and proteins, these molecules must undergo catabolic reactions whereby enzymes
split these into smaller molecules. This series of reactions is
A. absorption.
C. chemical digestion.
B. secretion.
D. mechanical digestion.

Answers

The answer is (c) chemical digestion

During his trip on the HMS Beagle, Darwin found that ______________.
A plants and animals living in temperate regions were most similar to each other, regardless of the continent on which they were found.
B fossils found on a particular continent were clearly not related to the plants and animals living on that continent today.
C plants and animals were similar on every continent and in every type of region.
D plants and animals living on one continent seemed more closely related to each other, than to plants and animals living in similar regions on other continents.

Answers

Answer:

Option D

Plants and animals living on one continent seemed more closely related to each other than to plants and animals living in similar regions on other continents.

Explanation:

From Darwin's discoveries, he noticed that there was a strong relationship between the environment and the characteristics of the living organisms present there.  He proposed that the environmental conditions affected the development of certain traits in organisms present there, in their quest for survival and adaptation.

These traits were passed down from parents to offspring, producing a population of organisms with similar character traits found around the same geographical location (continent in this case)

The risk index for a tsunami occurring in indonesia is 9.7 out of a maximum of 10 how could you prevent a tsunami from being a disaster ?

Answers

Answer: Protect yourself from the earthquake or volcanic eruption when it occurs because when this happens it is very likely that a tsunami will follow. Escape from the epicenter of the disaster, get as far away as possible from the water and get to a place as high as possible.

Explanation:

Indonesia is an archipelago of almost 20 thousand islands and it is located on the Pacific "Ring of Fire" which is a region where many volcanic eruptions and earthquakes occur independently of other events in other parts of the Ring. This means, Indonesia is vulnerable to volcano eruptions and earthquakes that eventually will cause tsunamis.

A tsunami is a complex event involving a group of waves in water of high energy and variable size that occurs when a large body of water is vertically displaced by some extraordinary phenomenon, for example, an earthquake, volcanic eruption, landslides, underwater detonations, meteorite impact, glacial ice slides, and others. So it is generated by the displacement of water.

The rist index for a tsunami to occur there is 9.7 of 10, this means that such an event is highly likely to occur. Since it is a natural phenomenon, there is no way to prevent it, however, there are several actions to take into account to avoid suffering major damage when this happens. This basically consists of protecting yourself from the earthquake or volcanic eruption when it occurs because when this happens it is very likely that a tsunami will follow. So you have to take it as a warning sign to flee in time. The most important thing is to escape from the epicenter of the disaster, logically get as far away as possible from the water and get to a place as high as possible, such as a mountain. It is necessary to be aware of the news and warnings to monitor the situation.

which organism has the least energy grass--> rabbit--->raccoon---> wolf

Answers

Answer:

The Wolf

Explanation:

Food chain follows a law called 10% Law.

It follows that the carnivores (secondary consumers) that feed on herbivores and detritivores and those that eat other carnivores (tertiary consumers) have the lowest amount of energy available to them.

Hence wolf has the least energy

What are the causes of wildfires?

Answers

Answer:

Humans and Wildfire

Human-caused fires result from campfires left unattended, the burning of debris, equipment use and malfunctions, negligently discarded cigarettes, and intentional acts of arson. Lightning is one of the two natural causes of fires.

Hope it's help

Correct me if I'm wrong

Explanation:

-zacksecretman87

Make me brainlest

#carryonlearning

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What causes a wildfire?
Common causes of wildfires include lightning, human carelessness, arson, volcano eruption, and pyroclastic cloud from active volcano. Heat waves, droughts, and cyclical climate changes such as El Niño can also have a dramatic effect on the risk of wildfires. Although, more than four out of every five wildfires are caused by people.

Explain the structure of the nucleus in a living cell​

Answers

Answer:

The nucleus contains nearly all of the cell's DNA, surrounded by a network of fibrous intermediate filaments and enveloped in a double membrane called the "nuclear envelope". The nuclear envelope separates the fluid inside the nucleus, called the nucleoplasm, from the rest of the cell.

hope that helps<3

Answer:

Look at the explanation

Explanation:

Nucleus is situated in the cytoplasm of the cell.

Usually, it is round but many different shaped nuclei can be seen in some cells.

It is surrounded by two porous membranes called nuclear membranes which remain continuous with the Endoplasmic Reticulum.

Within the nuclear membrane is present a liquid substance called nucleoplasm.

Nucleoplasm contains two types of chromatin material: Heterochromatin and Euchromatin.

Chromatin fibres are thin thread-like structures composed of DNA and proteins.

These fibres condense to form short thick chromosomes during cell division and become visible.

DNA molecules transfer hereditary information from one generation to the next.

Hope this helps!

Which of the following explains why DNA testing is used in the lumber industry?
O to locate the strongest trees for harvesting
O to figure out the species of individual trees
O to help find the best trees to use in breeding
O to determine the source countries of tree products

Answers

Answer:

I think it's the second one

Explanation:

It's probably the second one. Some people don't know how to distinguish different types of trees.

Answer:

to avoid illegal lumber, endangered species and forged certificates

Un laboratorio que produce una fórmula para matar piojos recibió muchas quejas de parte de sus
clientes debido a que la efectividad del producto fue disminuyendo con el tiempo. Debido a esto
decidió cambiar la fórmula y el nuevo producto es capaz de eliminar el 100% de los piojos. ¿Cómo
explicarías que el primer piojicida fue perdiendo efecto con el tiempo? ¿Te parece que el nuevo
piojicida va a evitar recibir quejas luego de pasado un tiempo? ¿Por qué?

Answers

Answer:

Es probable que a través del tiempo la población de piojos también se vuelva resistente al segundo pijojicida. Los piojos resistentes se generan por un proceso de selección natural  

Explanation:

La evolución es el proceso mediante el cual los organismos cambian (evolucionan) con el tiempo con el fin de adaptarse a sus condiciones ambientales. La selección natural opera seleccionando aquellos individuos mejor adaptados al ambiente en el cual cada individuo se desarrolla. Los individuos adaptativamente superiores poseen más chances de sobrevivir y de reproducirse, trasmitiendo de este modo sus genes a la descendencia. Las mutaciones representan la fuente principal de variabilidad genética en la forma de nuevos alelos y genes. Las mutaciones que son beneficiosas y confieren una ventaja adaptativa son seleccionadas por selección natural. En este caso, la resistencia al primer piojicida se debió a la aparición de una o más mutaciones las cuales confirieron resistencia al primer compuesto. Con el tiempo, la frecuencia de los individuos portadores de mutaciones beneficiosas en la población de piojos fue incrementándose paulatinamente (como resultado del proceso de selección natural). Es muy probable que este proceso evolutivo también se repita con el segundo piojicida.

The rocky material left behind by a retreating glacier forms what is called a moraine. When primary succession occurs on a moraine, which life-forms will help create the soil by breaking down bare rock?
A Insects
B Lichens
C Grasses
D Deciduous trees

Answers

Answer:

The correct answer is - B. Lichens.

Explanation:

Lichens are one of the pioneer species that can grow on bare rock such as moraine and help make soil for further ecological succession and making ground for other species.

Breaking the bare rocks to convert into the soil is part of the primary succession. Lichens are colonized over these rocks and they contain acid which leads to the breakdown of the moraine and other rocks.

explain the four weed control methods. give at least 2 examples that you practice. 2 example in each control method.. plzz ans this question​

Answers

Answer:

Cultural Weed Control, Mechanical Weed Control, Biological Weed Control and Chemical Weed Control.

Explanation:

Cultural Weed Control, Mechanical Weed Control, Biological Weed Control and Chemical Weed Control are the four methods used for weed controls.  Pulling and digging are the two examples of Mechanical weed control while on the other hand, herbicides such as Metribuzin and 2,4-dichlorophenoxyacetic acid (2,4-D) are the two examples of Chemical Weed Control. Herbicide is the most effective and quick method used for weed control.

Amebas are single-celled organisms that need to obtain food in order to
A. release oxygen into the air
B. protect themselves from other living
things
C. get the energy they need to carry
out life functions
D. remove harmful chemicals from the
environment

Answers

answer is c im pretty sure, have a good day!

Define the word ⇒ matter

Answers

Answer:

matter is what makes up everything, every type of organism, every object, etc.

Explanation:

Answer: 1.

physical substance in general, as distinct from mind and spirit; (in physics) that which occupies space and possesses rest mass, especially as distinct from energy.

"the structure and properties of matter"

2.

an affair or situation under consideration; a topic.

Explanation:

Hope it helps

Page No Date Sex in bacteria is deteaimined by ?

Answers

Answer:

Pili

Explanation:

The sex of bacteria is determined by a structure called Pilli. Pilli is not present in all species of bacteria, but within species that have this structure, such as Escherichia coli, pilli is considered an appendage present in male bacteria.

Pilli presents itself as a long hair and can also be called F factor or fertility factor and has a reproductive function, as it allows the conjunction between two bacteria (one with pili and the other without), where the male bacteria transmit genetic resources to within the body of the female bacteria , which will combine these resources with its own resources and will give rise to another bacteria.

Why is a female skeleton smaller, and not as wide a male skeleton?
Can someone please explain?

Answers

Answer:

A male's skeleton is usually thicker, rougher and appears more bumpy. ○ Due to the fact that males have larger muscles and therefore their skeletons require stronger attachment sites. Women who have borne children have scars on the surface of their pelvis. The femur (thigh bone) of a male is thicker than a females.

Science
Question 1 of 10
Which substance is an example of organic matter?
O A. Oxygen
O B. Sugar
O C. Salt
O D. Carbon dioxide

Answers

Answer:

B: Sugar

Explanation:

Hydra is called a diploblastic animal .Why? ​

Answers

Hydra has two main body layers, which makes it "diploblastic". The layers are separated by mesoglea, a gel-like substance. ... The cells making up these two body layers are relatively simple.

What is one of the reasons why Gregor Mendel chose to study pew plants

Answers

answer: to study genetics

What is the number and type of cells produced from meosis

Answers

four

Explanation:

meiosis is a type of cell division that reduces the number of chromosomes in the parent cell by half and produces four gamete cells

Answer:

Meiosis is a type of cell division that reduces the number of chromosomes in the parent cell by half and produce 4 gamete cells. This process is required to produce egg and sperm cells for sexual reproduction.

Explanation:

I think it will help you

HELP ME FASTT I NEEED IT NOW

Answers

Answer:

C.

Explanation:

they aren't organic so they are manufactured synthetically, not naturally

Answer:

C

Explanation:

Which is most likely an example of pseudoscience?


A doctor’s study shows that insulin released constantly in the body regulated blood sugar better than injected insulin.

An experiment concludes that two populations of squirrels look similar but are not closely related.

Data shows that dogs live longer by using a certain brand of dog food.

Most people believe that drinking milk can soothe heartburn.

Answers

Answer:

Most people believe that drinking milk can soothe heartburn.

Explanation:

Pseudoscience refers to practices and beliefs that are believed to be scientific but in actuality, do not follow any known scientific method. Even after it has been logically proven that these practices have no scientific backing people continue to believe in them because through confirmation bias, they believe that they work.

True science is evidence and research-based. Pseudoscience as seen in the last option is just based on belief.

Answer:

Most people believe that drinking milk can soothe heartburn.

Explanation:

5 Which situation would be most likely to cause a DNA mutation? O A A wood frog in a lake is exposed to temperatures below 0°C during the wi OB. A person spends one hour each day under the ultraviolet rays of a tanning OC. A maple tree becomes dormant to prevent water loss during a drought. OD. A culture of cells is placed in a chamber and exposed to high pressure for Reset Nex​

Answers

Answer:

B. A person spends one hour each day under the ultraviolet rays of a tanning bed.

Explanation:

Genomics refers to the scientific study of genes (DNA) found in living organisms such as humans and animals.

A genome can be defined as the complete set of hereditary instructions that is typically found in the deoxyribonucleic acid (DNA).

Deoxyribonucleic acid (DNA) is an organic complex-molecular structure found in all living organisms.

Basically, it comprises of genes and is essentially the foundation block of all living organisms such as humans, animals and plants.

Mutation can be defined as an alteration in the DNA sequence (nucleotide sequence) of a cell of a living organism either due to improper transcription, genome editing or environmental factors such as smoking, ultraviolet (UV) light, etc.

Hence, when a person spends one hour each day under the ultraviolet rays of a tanning bed, it's most likely to cause a DNA mutation. A continuous exposure to ultraviolet (UV) light would cause an uncontrolled division of certain body cells, which then invade the surronding tissues and interfere with the normal functioning of the body.

How do somatic and inherited mutations differ?

Answers

Answer:

Inherited mutations exist in all cells in the body and somatic mutations only exist in the cell type that mutated. … Somatic mutations are gene mutations that exist in only certain cell types that are mutated, not in every cell in the body and it take place at some time during an individual's life.

Inherited mutations exist in all cells in the body and somatic mutations only exist in the cell type that mutated. ... Somatic mutations are gene mutations that exist in only certain cell types that are mutated, not in every cell in the body and it take place at some time during an individual's life

Choose the appropriate term for each labeled part of the image. Label A Label B Label C Label D

Answers

Answer:

Label A- ocean trench

Label B- ridge

Label C- ridge push

Label D- Convection Current

Explanation:

got it correct on edge. give thanks please. <3

Explanation:

Ocean Trench

Ridge

Ridge Push

Convection Current

descirbe your house to your classmate who plans to attend your birthday party​

Answers

Answer:

3 bedrooms 4 bathrooms

Explanation:

Where can Alveoli be found? A. In the cell membrane. B. In the hypothalamus. C. In the liver. D. In the lungs.​

Answers

The answer is D. In the lungs

Explain how is sunlight distributed across the world

Answers

Answer:

The sun is distibuted across the world due to The environment works in a similar way to a car's heat engine. Winds, precipitation, and evaporation processes in the atmosphere, on the other hand, spread the sun's energy across the Earth. Conduction, convection, and radiation are the methods through which heat energy is transferred.

Explanation:

I took earth science

On Earth, sunlight is scattered and filtered through Earth's atmosphere, and is obvious as daylight when the Sun is above the horizon. When direct solar radiation is not blocked by clouds, it is experienced as sunshine, a combination of bright light and radiant heat.

A particular enzyme will usually interact with... *

Answers

It’s corresponding molecule that or bonds to. I think it is a substrate.

Select three examples of resistance to antibiotics that is due to an altered cellular target of the drug. Multiple select question. The activity of beta-lactamase Addition of acetyl-CoA to chloramphenicol Alteration of an enzyme involved in folic acid synthesis A change in the structure of 23S rRNA The terminal D-alanine of pentapeptide mutates to D-serine

Answers

Answer:

- Alteration of an enzyme involved in folic acid synthesis

- A change in the structure of 23S rRNA

- The terminal D-alanine of pentapeptide mutates to D-serine

Explanation:

Antibiotic resistance is the phenomenon by which microorganisms naturally have, acquire, or develop the ability to defeat the drugs designed to eliminate them. For example, trimethoprim is able to bind with the enzyme dihydrofolate reductase (DHFR) in order to inhibit the folic acid synthesis pathway. Sulfonamides (sulfa drugs) competitively inhibit the incorporation of para-aminobenzoic acid (​PABA) into folic acid and thus also prevent the synthesis of folic acid. Ribosomes are organelles where proteins are synthesized. The 23S rRNA is a component of the large subunit (50S) of bacteria and archaea ribosomes. In consequence, it is expected that a modification in the structure of 23S rRNA alters protein synthesis. Finally, vancomycin acts by binding the terminal D-Ala-D-Ala residues of the polymeric lipid-PP-disaccharide-pentapeptides and thus inhibits cell wall synthesis in Gram-positive bacteria. In consequence, it is expected that a mutation at the terminal D-alanine that modifies this sequence alters the vancomycin binding site and thus also confers antibiotic resistance.

Which of the following objects could be used to model the structure of a DNA molecule?
A. a snowflake
B. a ladder
c. a three-dimensional cube
D. a branching tree

Answers

Answer:

Ladder

Explanation:

The structure of the double helix is often described as being like a ladder that has been twisted into a spiral shape. Therefore, option (B) is correct.

What is the structure of DNA?

DNA (deoxyribonucleic acid) is a long, linear polymer that is made up of repeating units called nucleotides. Each nucleotide consists of a sugar (deoxyribose), a phosphate group, and one of four nitrogenous bases: adenine (A), guanine (G), cytosine (C), or thymine (T). The sequence of these nitrogenous bases determines the genetic information encoded in DNA.

One of the most common models for the structure of DNA is the "double helix" model, which was proposed by James Watson and Francis Crick in 1953. This model depicts DNA as a double-stranded helix that is held together by hydrogen bonds between the complementary nitrogenous bases A and T, and G and C. The two strands of the helix are antiparallel, meaning that they run in opposite directions. The structure of the double helix is often described as being like a ladder that has been twisted into a spiral shape.

Learn  more about DNA, here:

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