Answer:
0.25
Explanation:
density = mass / volume
data given :
mass=128 g
volume of a cube = L *L *L (L is length)
=8*8*8
=512 cm³
density = 128/512
=0.25 g/cm³
Trisha measured the volume of a cube using a ruler. The density of the cube is 0.25 g/cm³.
What is density?
The mass per unit volume is known as density. A scalar quantity, density. It is represented by the letter D, and the Greek letter rho is used as the sign for density. Mass divided by volume is how density is computed.
Mass is a physical body's total amount of matter. Mass is defined as the sum of the moles of the material and the compound's molar mass. Volume is the space taken by an object
Given the mass = 128 g
The volume of a cube = L x L x L (L is length)
Putting the value in the formula
8 x 8 x 8 =512 cm³
Density is mass/volume
Putting the value in the formula
density = 128 / 512 = 0.25 g/cm³
Thus, the density of the cube is 0.25 g/cm³.
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Which of the following statements about the types of RNA is NOT correct?
a. tRNA carries the amino acids to the ribosome
b. mRNA determines the order of the amino acids
c. rRNA makes up the ribosome
d. all of these are true
e. none of these are true
Answer:
D
Explanation:
In a multicellular organism, specialized cells have individual functions. What is the function of a nerve cell?
Answer:
Function are presented below:
Explanation:
for sending motor commands to our muscles, and for transforming and relaying the electrical signals at every step in between.
.When animals breathe, they take in oxygen and give off carbon dioxide. How is photosynthesis like or unlike this process?
Once they have carbon dioxide and water, they can use solar energy to create food. Another gas called oxygen is a by-product of the production of plant nourishment. The leaves emit this oxygen into the atmosphere.
What animals breathe, take in oxygen give carbon dioxide?The act of breathing in oxygen and exhaling carbon dioxide is generally referred to as respiration. The phrase is more precisely used to describe the chemical process that organisms undertake to extract energy from food, a process that normally entails the inhalation of oxygen and exhalation of carbon dioxide.
Therefore, One of the first concepts covered in biology class is that, whereas plants absorb CO2 throughout the day and release oxygen, animals breathe in oxygen and exhale CO2. Plants use the energy from sunlight to transform CO2 and water into sugar and oxygen through a process known as “photosynthesis.”
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If a couple has four daughters the % chance of their next child being a daughter is
Answer:
50% chance
Explanation:
Humans have two sex chromosomes, the X chromosome and the Y chromosome. Males inherit both X and a Y chromosome, while females inherit two X chromosomes. Thus, the sex of the child is determined by the sex chromosome carried by the male gamete (i.e., X or Y chromosome) which fuses with the egg cell (always containing an X chromosome). In consequence, the chance of having a sperm containing an X chromosome (i.e., the chance of having a girl) is an independent event of previous fertilization events (which led to the formation of 4 different female zygotes), thereby the probability will be 50%.
Which organism would require cell differentiation?
O amoeba
O bacteria
cactus
O euglena
Answer:
bacteria
Explanation:
for such unicellular organisms like bacteria, various life functions occur witha single life
1. What phase of mitosis produces 2 daughter cells?
2. What is the name of the process that finally separates the daughter cells?
Answer:
1. Telephase
2. Cytokinesis
Explanation:
uhm, yeah. that's the answer.
Which of the following is NOT in part of the natural selection process?
A. a species produces more offspring than can survive
B. an organism adapts to their environment causing variation
C. individuals competing with each other
D. fossils being formed
Answer:
the selection that is not a natural selection process is D: fossils being formed
Answer:
D. Fossils being formed
Explanation:
In the natural selection process, the point is that the animal which is best adapted to the environment survives, so their offspring can survive and produce more offspring that adapts. This is because organisms need to adapt to their environment to survive. Without natural selection, most animals would be too weak to live in their own habitat.
So when we see the answer choices, we have to ask if the species could continue to live and adapt.
A- the species produces more offspring that can survive. Yes, the species can continue to live and adapt.
B- an organism adapts to their environment. Yes, the species can continue to live and adapt.
C- individuals competing with each other. Yes, the better species will win, and continue to live and adapt
D- fossils being formed. No, this has nothing to do with the process of living and adapting. It is in fact the opposite, since it relates to the species dying.
So the answer is D
what causes the colored bands in the spectra we see?
Answer:
Each of the different colors has its own wavelength, which reflects and refracts at its own angle, different from all the other colors. When light passes through a prism (a triangular piece of glass), it is reflected and refracted into a continuous band of colors called a spectrum.
Explanation:
Answer:
Colorful gasses;
When light passes through gas in the atmosphere some of the light at particular wavelengths is scattered resulting in darker bands. These lines came to be known as 'spectral lines' and were cataloged by heating common elements until they produced light and measuring the wavelengths emitted.
Explanation:
What would you need to do to your model to make it look like a true DNA molecule?
Your right to safety means consumers have the right to a variety of competitive products in the marketplace.
Answer:
Yes i believe this is true
Explanation:
What are FOUR specific things you would consider if you were
scientifically choosing a house to buy (instead of emotionally)?
having an accurate model of an atom is important except
a) it can help give information on how atoms work
b) learning about atoms will help create better organisms
c) we use the model to learn about how to create new things
d) it can help support the explanation of the origin of the universe.
how transcription makes mRNA?
PLS ANSWER I REALLY NEED TO PASS MY THIS CLASS
Answer:
yehhhhhhhhhhhhhhhhhhhhhhhhh
Explanation:
What is one example of how it takes energy for motion to occur?
Answer:
Lets say you are running in P.E. If you run for to long you get tired. When you are tired you run out of energy and cant run anymore.
Explanation:
Take example for fan
You give electrical energyThat energy gets used by fanThen fan runs and creates a motionThere can be further more examples like pumps,heaters ,AC
can the need to protect the elephants environment be balanced with the need to protect the elephant
Answer:
there are times when your need to save elephant they balance life also so yes save elephants
Explanation:
What kind of conditions pushed c4 plants to adapt in order to allow them to undergo photosynthesis
answer:
C4 plant has adapted to photorespiration by modifing the calvin-benson cycle.
Why do geologists think Earth's core contains mostly iron?
A. The crust contains a mixture of iron and silicon.
B. The crust contains no nickel.
C. Other orbiting bodies contain more iron than Earth's crust does.
O D. The moon's crust contains far less iron than Earth's crust.
Answer:
It should be D
Explanation:
I hope this helps! Let me know if I am wrong.
The geologists think Earth's core contains mostly iron is to be considered as the option c. Other orbiting bodies.
Reason for thinking of geologists:Here the thinking should be earth core that comprises iron since the earth should contain the powerful magnetic field that is due to the molten iron in the core.
Also, there should be constant movement leads to the electrical current.
hence, the option c is correct.
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what can the reader conclude about ecosystems based on the information of this passage
Answer: Ecosystems are so developing entities of biological communities
Explanation:
GIVING BRAINLIEST AND THE REST OF MY POINTS!!!!!!!!
Which piece of observation would support your explanation that the chameleon use a physical characteristic adaptation to survive in its environment?
A) A change in skin color
B) An increase in number of eggs
C) Carrying eggs in their mouth
D) Living in large groups
Answer:
A Change its skin
Explanation:
the Chameleon changes it skin to intimidate predators or to blend into an enviroment. And since changing the color of your skin is physical its A!
Adaptations are the characteristical behavior and physical changes. A change in skin color is the physical adaptation of a chameleon to survive in the environment. Thus, option A is correct.
What is adaptation?
Adaptations are the modifications and transformations a species adapts over time in their physical appearances in response to the stimuli that allow them to survive in the surroundings.
Physical adaptation includes the structural change in the shape, the color of the body, fur, and thickness and thinness of the body fur. A change in the skin color of a chameleon allows it to blend into its environment hence, protecting it from predators.
Therefore, the change in the skin color of a chameleon is a physical adaptation.
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I need help with this plz
Answer:
What
Explanation:
1. Which of the following is NOT a key factor important to the development of human society?
A. Access to clean water
B. Access to fertile soil
C. Access to cities
D. Access to natural resources
Access to cities is not a key factor important to the development of human society, but clean water, fertile soil, and Access to natural resources all are needed, hence option C is correct.
What are factors important to the development of human society?The preagricultural (hunting and gathering) stage, the agricultural stage, and the industrial stage are thus the at least three primary stages of societal evolution or civilizations.
Clean water is essential to our way of life because it creates a habitat for species and places to fish, paddle, surf, and swim. Our economy is reliant on clean water to operate and thrive. This includes industries like manufacturing, agriculture, tourism, recreation, and energy generation.
They support tax revenue, income, and the fight against poverty. Natural resource-related industries generate employment and frequently form the backbone of poorer towns' economies.
Therefore, natural resources are fundamentally important, so they must be managed responsibly.
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Zaccharias Janssen was a scientist who studied properties of light and invented one of the first compound microscopes in the late 1500s. Which property did Janssen most likely believe about light during the time of his invention?
Answer:
Light bounces off surfaces property most likely believed by Janssen about light during the time of his invention
Explanation:
Zacharias Janssen is ascribed as a man to discover the compound microscope. Its purpose is to amplify diminutive things so characters can analyze them. There is a mirror attached under the microscope and when light bounces off the mirror it reaches through and nearby the specimen being viewed.
Some elements do not receive light. When a light wave is reflected off a facade, it proceeds back off at an angle similar that the wave beats the surface. Using these more innovative concepts about light enacted scientists to compose new inventions.
Answer:
Light bounces off surfaces
Explanation:
Which best explains why the rate of a reaction decreases at significantly higher temperatures?
A. The activation energy increases.
B. The shape of the enzyme changes.
C. The enzyme-substrate complex forms.
D. The bonds between substrates are broken.
Answer:
B
Explanation:
At significantly higher temperatures, the rate of an enzyme-catalyzed reaction decreases because the shape of the enzyme changes at high temperatures. Enzymes are proteinous in nature, and as such, are generally sensitive to high temperatures.
They simply become denatured by high temperatures. In other words, they lose their original shape and their catalyzing abilities as the temperature gets progressively high during the course of reactions, thus, decreasing the rate of a reaction.
The correct option is, therefore, B.
2. Just as in humans, systems interact in plants to maintain homeostasis and accomplish the functions of transport, reproduction, and response. What are some examples of plant processes that involve an interaction between stems, roots, and leaves?
Answer:
osmosis
Explanation:
plants use osmosis whic is moving water though a semipermial membrane to draw up water. It moves from places of high conetartions of water (dirt) has to is less water (roots). When it does this the plant mains homeostasis by getting water up useing their xylem (tubes in stems) to the leaves.
Plants use osmosis which is moving water though a semipermial membrane to draw up water.
What do you mean by osmosis?Osmosis is the spontaneous net movement or diffusion of solvent molecules through a selectively-permeable membrane from a region of high water potential to a region of low water potential.
Osmosis is the movement of water across a semi-permeable membrane from an area of low solute concentration to an area of high solute concentration. Osmosis helps regulate the flow of water in and out of cells, which is crucial to their function.
The rate of osmosis always depends on the concentration of solute. The process is illustrated by comparing an environmental or external solution to the internal concentration found in the body.
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How does the mutation present in 10% of Europeans protect their cells from HIV?
How do matter and energy interact in a food web or energy pyramid model?
Answer: The higher up the pyramid the less energy there is.
Explanation: There is more competition
Answer:
At each link upward in a food web, only a small fraction of the matter consumed at the lower level is transferred upward, to produce growth and release energy in cellular respiration at the higher level. ... At each link in an ecosystem, matter and energy are conserved.
Explanation:
1 point
What type of cells make up the stomata?
Epidermal cells
Smooth cells
Guard cells
O Xylem cells
A converging lens can be defined as ___
A) a lens that causes parallel light rays to bounce off the surface
B) a lens that causes parallel light rays to separate from each other
C) a lens that allows parallel light rays to pass without changing directions
And D) a lens that causes parallel light rays to focus at a specific location
Answer:
D) a lens that causes parallel light rays to focus at a specific location
Explanation:
Lexically, to CONVERGE means to MEET. Converging lens, also known as double convex lens is that which causes rays of parallel light to become focused at a point i.e meet at a specific location.
The parallel rays of light come from different direction but the converging lens is structurally suited to cause them to converge or focus at a point.
The jellyfish life cycle has several stages. During one of these stages, jellyfish reproduce asexually.
Which statement describes an advantage of asexual reproduction?
1.
Only one individual is needed to reproduce.
2.
Only beneficial traits are passed on to offspring.
3.
Two individuals contribute genes to the offspring.
4.
The genetic diversity of the population is increased.
Submit Answer
Answer:
1
Explanation:
Which has a lower albedo, a black sheet of paper or a white sheet of paper?
Well let's see, the substance with the highest albedo value will absorb less light and will reflect most of the light falling on it. The substance having the lowest albedo will absorb most of the lights falling on it. A black sheet of paper will absorb most of the light falling on it, so this means that a black sheet of paper will have the lower albedo