Answer:
The time it takes for light from stars to reach us is the distance to the star divided by this speed
Explanation:
light travels at 300,000 kilometers per second or 186,000 per second. The nearest star to us is the sun and it takes about 8.3 minutes for its light to reach us here on Earth
What is single cell protein
Explanation:
i hope you understand the explanation
Determine the statement that is logically equivalent to this conditional statement. If there is a thunderstorm, the lake floods.
Answer:
This question lacks options, the options are:
A) If the lake does not flood, there is a thunderstorm.
B) If the lake floods, then there is not a thunderstorm.
C) If there is not a thunderstorm, the lake does not flood.
D) If the lake does not flood, then there is not a thunderstorm.
The correct answer is D
Explanation:
A conditional statement is a statement whose effect is dependent on another, it is usually recognized with the IF word. A Contrapositive of an original conditional statement, is the inverse of the converse of an original statement that doesn't change the meaning of the original statement.
For example; A -> B is the original conditional statement
Converse is B -> A
The Contrapositive is (not B -> not A)
The original conditional statement is: If there is a thunderstorm, the lake floods.
(This means that there is flooding of the lake in the presence of a thunderstorm)
The contrapositive of this statement is:
If the lake does not flood, then there is not a thunderstorm.
(This retains the meaning of the original statement. It means that the absence of a flood certainly means the absence of a thunderstorm)
Since the contrapositive is logically equivalent to the conditional statement, then the option D is the logically equivalent to the conditional statement.
Note: Option C is wrong because other factors might cause flooding of the lake, so the absence of thunderstorm doesn't mean there'll be no flooding of the lake but no flooding certainly means no thunderstorm, which option D is portraying.
Which of the following is a benefit of the water cycle to life?
a. maintaining homeostasis
b. transporting nutrients
C. cycling nutrients
d. all of the above
Answer:
D. All of the above
Explanation:
I just took the test
The benefits of the water cycle to life include maintaining homeostasis, transporting nutrients, and cycling nutrients.
What do you mean by the Water cycle?The water cycle may be defined as the continuous movement of water on, above, and below the earth's surface.
The water cycle helps in maintaining the process of homeostasis by actual photosynthesis and respiration mechanisms in the organisms. It also cycles nutrients from the surface of the earth to the whole atmosphere in a gradual way.
Therefore, the benefits of the water cycle to life include maintaining homeostasis, transporting nutrients, and cycling nutrients.
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3
According to Newton's first law, which characteristic of a moving object would remain constant if there were no
other forces acting on it?
size
mass
ОООО
shape
speed
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Answer:
Mass and acceleration will remain constant
help helppppp.................
Answer:
i think A but im not sure.
Explanation:
help.....please (>.< )
Answer:
1) Hmm. I think it is all year-round since the pattern of precipitation seems quite similar and doesn't seem quite drastic in one month compared to another
2) The annual temperature increases from January to August and then decreases from August to December
3) This makes it a climate representation chart because it shows the average temperature and average precipitation of a particular location yearly
Hope this helps!
The correct route of administration for long-acting forms of penicillin is: a. Intramuscular b. Intravenous c. Oral d. Sublingual
Answer:
Intramuscular
Explanation:
Intramuscular is a method of administering injection directly into the muscles for effective functioning.
Long acting penicillin are administered intramuscularly because of penicillin sensitive microorganisms that are subsceptible to low serum levels which is associated with penicillin dosage in the body and penicillin Has low level of solubility therefore it is slowly released into the muscles sites.
Explain what causes genetic mutations please, thank you again!
Answer:
Acquired (or somatic) mutations occur at some time during a person's life and are present only in certain cells, not in every cell in the body. These changes can be caused by environmental factors such as ultraviolet radiation from the sun, or can occur if an error is made as DNA copies itself during cell division.
What is Respiration?? Plz Help Me In Detail For Class 9
Answer:
process by which food substances are chemically broken down to release energy .
Explanation:
Your question has been heard loud and clear.
Respiration is a cellular process. Meaning , it only occurs in the cells of the living organism. Basically it is a biochemical process in which cells use oxygen and glucose supplied from nutrients , and combine the oxygen and glucose , and after combining them , it releases energy in the form of carbon dioxide , water and ATP molecule.
Also , respiration can also be done without oxygen called anaerobic respiration.
Respiration done with oxygen is called aerobic respiration
Thank you
Why did scientists previously believe that the sun revolved around the Earth? What
helped them discover this was not the truth?
I
Aristarchus found a Sun distance of 40 times that of the distance to the Moon. This would make the Sun also 40 times the size of the moon. His calculation was way off, but he still suggested that the Earth orbits the Sun because the Sun was so HUGE.
The heart is within the ________. Group of answer choices c. posterior (dorsal) cavity d. All of the above b. mediastinum a. cranial cavity
Plants store excess sugar as ___, known as cellulose?
Answer: True
Explanation:
How does salt maintain fluid levels inside your body?
Answer:
These results show that the body regulates its salt and water balance not only by releasing excess sodium in urine, but by actively retaining or releasing water in urine. The advantage of this mechanism is that the long-term maintenance of body fluids isn't as dependent on external water sources as once believed.
What does the cell theory state A that all living thing are made of cells B every cell has only one nucleus C that plants cannot have cells D b animals are the only organisms that have cells
Answer:
A: That all living things are made of cells
Explanation:
Write a paragraph about how you think the 2019 virus quickly became a pandemic and how it will eventually be eradicated.
How would the nitrogen cycle be disrupted if humans removed nitrogen-fixing bacteria from the soil? A. Neither plants nor animals would receive nitrogen, so both would suffer poor health and die. B. Only plants would not receive nitrogen, so they would suffer poor health and die. C. Plants would receive too much nitrogen, suffer poor health, and die. D. Animals would receive too much nitrogen, suffer poor health, and die.
Answer:
A. Neither plants nor animals would receive
nitrogen, so both would suffer poor health and
die.
Explanation:
The nitrogen cycle be disrupted if humans removed nitrogen-fixing bacteria from the soil Neither plants nor animals would receive nitrogen, so both would suffer poor health and die.
What would happen if we did not have nitrogen fixing bacteria in the soil?Nitrogen fixation, a sudden ceasing of all bacterial activity would be catastrophic to plant life, and then the remainder of life that depend on said plants.
Thus, option "A" is correct.
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There's 58 minutes remaining, take your time!
Answer:
Sorry I didnt get you
An organism is heterozygous for a gene that follows Mendels law of dominance which allele will be expressed as its phenotype
Answer:
The dominant allele
Explanation:
The dominant allele will be expressed because in a heterozygous genotype, the phenotype will always show the dominant gene (in Mendelian genetics)
This is because the dominant allele will dominate the recessive one and it will "mask" the recessive allele.
What kind of cell is produced by fertilization? Haploid cells or diploid cells
Diploid cell is Produced by fertilization.
What is Fertilization?Fertilisation or fertilization (see spelling differences), also known as generative fertilisation, syngamy and impregnation, is the fusion of gametes to give rise to a new individual organism or offspring and initiate its development.
Processes such as insemination or pollination which happen before the fusion of gametes are also sometimes informally called fertilisation.
During double fertilisation in angiosperms the haploid male gamete combines with two haploid polar nuclei to form a triploid primary endosperm nucleus by the process of vegetative fertilisation.
Therefore, Diploid cell is Produced by fertilization.
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How is the relationship between eons and eras different than the relationship between hours and minutes?
Answer:
Explanation:
Eras are made up of eons, but hours are made up of minutes. Eons are made up of eras, but minutes are made up of hours. Eras are not even divisions of time, while minutes are. Eons are even divisions of time, while hours are not.
Which would best be described as abiotic?
water in a stream
fish in a stream
bacteria in the soil
O roots in the soil
Water in a stream is best described as abiotic element. The correct option is A.
What are abiotic elements?Abiotic elements are the non-living chemical as well as physical elements within the ecosystem.
Abiotic resources are basically got from the lithosphere, atmosphere, as well as the hydrosphere. For instance, water, air, soil, sunlight, and minerals are abiotic elements.
The biotic factors is are generally lifeforms which shapes the environment.
In a freshwater ecosystem, for instance, aquatic plants, fish, and algae can be taken as biotic elements. Biotic and abiotic factors work together to create a mandatory ecosystem.
Thus, the correct option is A.
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HELPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPP
Answer:
THE ANSWER IS C
Explanation:
Publishing results of research projects in peer-reviewed journals enables the scientific and medical community to evaluate the findings themselves. It also provides instructions so that other researchers can repeat the experiment or build on it to verify and confirm the results.
Several Substances are shown in this picture. Two of the substances are in two different forms. Name the two substances and their forms.
Answer:
Water,something that looks like a bag and something that looks like smoke.
The bag and water are both in solid and liquid respectively and also the smoke is gaseous.So am not sure of the two substances that you need but I have listed them.Thank you for the question
What is the plant cell organism?
Answer:
Explanation:
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.
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.
Explanation:
How many chromosomes are
present during prophase? *
In mitosis
Which statement describes asexual reproduction, but not sexual reproduction?
Answer:
__________________________
An Asexual reproduction means that the parent organism will simply split into two child organisms, and that there will be no mixing of the DNA, as it is the case in case of the sexual reproduction which mixes up the DNA. Therefore the child and the parent organism will contain exactly the same genetic material
__________________________
Which statement correctly describes a characteristic that a scientific
measuring tool should have?
A. To be accurate, it must be able to make measurements using very
small units.
OB. To be accurate, it must be able to make measurements that are
close to the actual value.
C. To be accurate, it must be able to give consistent measurements
of a quantity
O D. To be accurate, it must be able to make measurements using very
large units.
A characteristic that a scientific measuring tool should have to be accurate, it must be able to give consistent measurements of a quantity.
What characteristic should a scientific measuring tool have?It includes the definition of each of the five most important characteristics of a measuring instrument: length of scale, sensitivity, accuracy, “finesse” and speed of response.
Thus, option "C" is correct.
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B. To be accurate, it must be able to make measurements that are close to the actual value.
Demonstrate through chemical modeling what happens to the protein structure (keratin) of curly hair after a chemical relaxer and heat are applied and what happens to straight hair after a chemical perm or relaxer is applied.
Answer:
Denaturation occurs.
Explanation:
When a chemical relaxer and heat applied to a curly hair, the protein present inside your hair get denature. Due to this denaturation of protein in the hair, the hair are soft and flexible which can be converted into any direction and different styles can be done. If chemical perm or relaxer is applied to straight hairs, it also denature the protein and make the hair curly.
What is division of labour in multicellular organisms?
hello,
here is your answer:
**********
Multicellular organisms are made up of millions of cells. These cells are divided into separate groups. Each group performs a specific function. Since these cells carry out only a particular function, they do it efficiently.
**********
hope this helped,
:)
- ¿Qué ruta sigue cada uno DE LOS TRIGLICERIDOS en su afán de obtener energía?… ¡sí, energía llamada ATP! - Ruta metabólica que siguieron el glicerol y el ácido graso.
Answer:
Los trigliceridos antes de ser disociados en moleculas energeticas necesitan ser absorvidos.
Para eso es importante aclarar que se absorbe nen elintestino en forma de quilomicron, por su caracteristica hidrofuga y son emulsionados por el jugo pancreatico y los jugos provenientes de la vesicula.
Una vez absorbido, este puede seguir diferentes rutas metabolicas de un cuerdo a la necesidad energetica de la persona.
En el caso que una persona obtiene energía de un acido graso o de su reserva adiposa es por que no hay mas reserva de glucogeno, es decir en ayunos prolongados, en personas con dificultad de asimulacion glucosidica como los diabeticos, personas con trastornos anorexicos recientes.
Explanation:
Las grasas contienen una gran aporte de ATP posterior a la adicion de CO2 y H20, en los procesos de beta oxidacion y el ciclo del acido citrico.
El metabolismo de estos se considera toxico en momentos prolongados ya que el producto de su metabolizacion son los cuerpos cetonicos. Los cuerpos cetonicos aumentan la cetoacidosis de la sangre y atraviezan la barrera hematoencefalica.
El ph por la cetoacidosis disminuye generando toxicidad tisular y del snc, hiperventilacion, hipercapnia, cansancio, aliento cetonico, fallo proteico de algunos complejos enzimaticos de nuestro organismo.
Ademas esimportante aclarar que el ser humano obtiene carbohidratos del glicerol y no de la porcion de acidos grasos.