Answer:
The expansion and cooling of the universe from an originally hot and dense state.
Answer: D. The universe formed during a single event in which all matter and energy suddenly expanded from an extremely small, dense, and hot point of pure energy called a singularity.
If an elements has two or more atoms with the same number of protons but different number of neutrons it is called a(n) _____________.
Question 2 options:
isotope
neutron
electron
none of the above
Answer:
electron
Explanation: The reason for electron is because when an atom has neutrons and protons but a different number of neutrons it is called an electron
IF it wasn't helpful sorry :(
Off the coast of the Pacific Northwest in the United States, the Pacific plate is being pushed underneath the North American plate in a subduction zone, caused by plate tectonics. As the rock from the Pacific plate is pushed under the North American plate, it is subjected to high temperatures and pressures. Which rock will be created from this process?
Answer:
Metamorphic rocks
Explanation:
When two oceanic plates collide, it occurs oceanic convergence. The thicker and older plate subduces under the other plate. As the thicker plate descends, it is heated and melted and its materials are incorporated into the mantle. The fast subduction originates magma. In the western Pacific crust is old and thick, and hence it submerges easier in the mantle.
Metamorphism provokes structural and mineralogic reordering in an original preexisting rock, under the influence of factors such as temperature and pressure, which are two of the most important and influencing ones.
This physic-chemical processes usually occur in deepness, many times related to plates movement and subduction processes. The sharped temperature rising might be caused by magma injection or by a deep placement or the original rock in a subduction zone.
According to the metamorphism processes, there are different kinds of metamorphic rocks. Metamorphic rocks that are the product of subduction event, belong to "regional metamorphism" which includes a huge area, and among this classification, "underground metamorphism" is associated with plates subduction, with a range temperature among 400-600ºC.
Fastttttttttttttttttttttttttttt I will give branliest
Answer:
ok
Explanation:
Why are the elephants facing a crisis?
Answer:
Many elephants are killed by poachers for their ivory tusk, the number of elephants in the world are decreasing
Explanation:
Google but in my own words
(03.01 LC)
Which of the following best describes the particles in an atom?
O Protons carry negative charge
O Neutrons carry positive charge
O Neutrons move around a nucleus
Electrons move around a nucleus
Answer:
Electrons move around a nucleus
Explanation:
My dog says so so give me the fiv star
What is the primary source of energy for all
living organisms?
Answer: the sun
Explanation:
Please give me 5 stars!! :)
7. What is the water vapor concentration at the tropopause?
Answer:
99 %
The troposphere contains 99 % of the water vapor in the atmosphere. Water vapor concentrations vary with latitude. They are greatest above the tropics, where they may be as high as 3 %, and decrease toward the polar regions.
Explanation:
hope this helps <3
Which of the following shows an unsaturated fatty acid?
Answer:
I belive the answer is B or C
Explanation:
Answer: its D
Explanation: i got it wrong cause of these guys
Please help I’ll do anything nowwwe
Answer:
Exocytosis definition and purposes. Exocytosis is the process by which cells move materials from within the cell into the extracellular fluid. Exocytosis occurs when a vesicle fuses with the plasma membrane, allowing its contents to be released outside the cell.
Explanation:
I hope this helps some. Please give Brainliest!
I need help againnnnnn.....
Answer:
Compound are substances which can be formed by chemically combining two or more elements. Mixtures are substances that are formed by physically mixing two or more substances.
Explanation: brainliest?
What are some way scientists
and engineers can
communicate information?
Answer: Some many talk face to face, email, phone discussions, or even text and blog. Scientists present their findings through conference presentations, peer-reviewed journals, and books.
Explanation:
13. In a forest, why do you rarely see young pine trees growing under a broad-leaved tree, such as a maple? If broad-leaved trees eventually take over a forest as pines die off, how does that affect other organisms living in the forest? How does it affect this forest ecosystem?*
Answer:/Explanation:
Broad leaved trees would block the sunlight due to the size of their leaves. This would reduce the amount of sunlight that the pine tree could absorb, and would therefore inhibit its ability to efficiently perform photosynthesis. This would reduce the amount of food it could synthesise, and interfere with its growth and reproduction.
Without pine trees, the diversity of the ecosystem would be reduced. Several organisms rely on pine seeds and leaves as a food source. In the absence of pine trees, competition for other food sources could increase, and certain birds, squirrels etc. could die off.
Pine trees are also a habitat for many birds and small creatures. Without these trees, these animals could struggle to find efficient shelter.
Plants respond to all of the environmental stimuli listed except
A. the length of nights.
B. hormones.
C. loud noises.
D. temperature.
Answer:
C - Loud Noises
Explanation:
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Variation within organisms in a species increases the chance that a species will survive changing conditions. What kind of reproduction produces the most variation with species?
A) parthenogenesis
B) sexual reproduction
C) asexual reproduction
D) budding
Answer:
Sexual reproduction
Explanation:
please mark as brainlist answers
8. A scientist noticed that the number of salamanders in ponds in Manatee County was
declining. This was a(n): (1 point)
O Hypothesis
O Theory
O Observation
Control
I NEED HELP ASAP! (Picture is attacted) True or false answer. YOU DHA REAL ONE IF YOU HELP !
How do you get the pH of a solution closer to neutral?
Answer: You can add neutral solutions with a pH of 7, like water. Water will dissolve the alkaline/acidic pH to near 7 and 8, which are safe to drink.
Hope this helps you!
A species is a particular type of living thing that can reproduce by interbreeding among themselves.
True False
describe the 4 steps of the nitrogen cycle :)
I will give Brainliest!!!!!!!!!!!!!!!!!!!
Please help me as soon as possible (T-T)
CO₂ is an example of a compound. True or false?
Answer:
True
Explanation:
Carbon dioxide, CO2, is a chemical compound composed of two oxygen atoms covalently bonded to a single carbon atom. It is exhaled by animals and utilized by plants during the process of photosynthesis.
Award 80 points!b
What stage of mitosis is indicated in the picture below: (Whitefish blastula slide)
A Prophase
B Metaphase
C Interphase
D Anaphase
E Telophase
Answer:
c or b more likew c
Explanation:
Answer:
Metaphase on edge
Explanation:
Which grouping has the least complex body plan?
Answer:
The correct answer to this question is "poriferia."
Explanation:
The common example of this group of animal is the sponge. Sponges are the basalmost clade of animals of the phylum Porifera. Given that you were on a research expedition in the Kingdom of Tonga, a coral atolll in the South Pacific, you can be able to find these sponge.By definition, coral atoll is a ring-shaped coral reef including a coral rim that encircles a lagoon partially or completely.
Answer:
The correct answer to this question is "poriferia."
The common example of this group of animal is the sponge. Sponges are the basalmost clade of animals of the phylum Porifera. Given that you were on a research expedition in the Kingdom of Tonga, a coral atolll in the South Pacific, you can be able to find these sponge.By definition, coral atoll is a ring-shaped coral reef including a coral rim that encircles a lagoon partially or completely.
Explanation:the common example of this group of animal is the sponge. Sponges are the basalmost clade of animals of the phylum Porifera. Given that you were on a research expedition in the Kingdom of Tonga, a coral atolll in the South Pacific, you can be able to find these sponge.By definition, coral atoll is a ring-shaped coral reef including a coral rim that encircles a lagoon partially or completely.
HELP PLEASE
Which of these chemicals is not a pollutant?
A. Methane
B. Nitrogen gas
C. Nitrate
D. Carbon dioxide
Answer:
All these chemicals are primary causes of pollution. Although, only one isn't an air pollutant. Which would make my best Guess C. Nitrate
Explanation:
A. Methane Is the main component in gas and oil. Oil companies have been responsible for polluting our air with about seven million tons of methane per year.
B. Nitrogen gas in general is one of the main air pollutions. otherwise know as Nitrogen dioxide.
C. Nitrates are found in ground waters and transfers into the soils surrounding said waters. Nitrates commonly are a cause of death in infants when drinking tab water or eating crops grown from nitrate infected soils. Adults aren't nearly as infected by this.
D. Carbon Dioxide is a greenhouse gas that pollutes our air and has been a main cause of global warming.
I'm at a loss for answering this question since all of these are polluting our earth in some way. The only way I can think to answer this is that all but one are air pollutants. So maybe the one that is not a air pollutant is the correct answer. My best guess is C. Nitrate
Hopes This Helps :)
In the test for protein, why would some tubes show a slight purple color while others show a dark purple color?
Answer:
protein:
1. What is the name of the reagent used to test for the presence of proteins? (1 point)
Biuret reagent
2. What color indicates the presence of protein in a solution when the reagent is added? (1 point)
When Biuret is added, it would turn blue when it is negative but if it is positive then it would turn to a purplish to a dark purple. Showing that there is protein.
3. Which substances tested were positive for protein? (2 points)
The ones that were tested positive were milk solution and 50% egg solution.
4. Describe in your own words what we should do if the test tube for di-water tested positive for protein. (2 points)
Since Di water is our negative control, we know that there would be no proteins but if it was tested positive. Then we should start the experiment all over again this time with new, clean equipment.
Cells can best be described as
Cells can best be described as the fundamental units of life. They are the building blocks of all living organisms, including plants, animals, and even microorganisms.
Here are some key characteristics that describe cells:
1. Structure: Cells have a defined structure with a plasma membrane that separates the internal components of the cell from the external environment. Inside the cell, there is a variety of organelles, such as the nucleus, mitochondria, and ribosomes, each playing a specific role in cell function.
2. Function: Cells carry out various functions necessary for life. They perform metabolic processes, such as respiration, photosynthesis, and protein synthesis. Cells also maintain homeostasis, which involves regulating internal conditions to keep the cell functioning optimally.
3. Reproduction: Cells have the ability to reproduce. They can divide and create new cells through processes like mitosis and meiosis. This ensures the growth, development, and repair of tissues and organs.
4. Genetic Material: Cells contain genetic material in the form of DNA (deoxyribonucleic acid). DNA carries the instructions for cellular activities and determines the characteristics of an organism. It is organized into genes, which are passed on from one generation to the next.
5. Specialization: Cells can be specialized to perform specific functions within an organism. For example, muscle cells contract to enable movement, while nerve cells transmit electrical signals for communication. This specialization allows multicellular organisms to have different cell types that work together to maintain overall function.
Overall, cells are the basic structural and functional units of life. They are responsible for all the processes necessary for an organism's survival and are crucial for maintaining life's complexity and diversity.
To know more about Cells:
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I only need part a and b
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Which sentence correctly explains the process and conditions needed for sleet to form? (15 pointsss :)
Group of answer choices:
A. During thunderstorms and extremely cold temperatures, water droplets freeze in layers and form balls or chunks of ice.
B. Both the temperature of the cloud and the temperature of the air must be below freezing in order for the flakes to fall from the sky.
C. A liquid form of precipitation that is formed in above freezing temperatures becomes heavier as it falls the ground in the form of raindrops.
D. Ice crystals melt as they fall through a warm layer of air and then refreeze into small ice pellets as they pass through a colder layer of air.
green was not the impostor
Explanation:
u are all idiots
Answer:
gerijddhbdykbzdkvci
How does a catalyst work?
A. by increasing the temperature of a chemical reaction
B. by decreasing the pressure of a chemical reaction
C. by increasing the concentration of reactants in a reaction
D. by decreasing the activation energy of a reaction
Answer:
D. By decreasing the activation energy of a reaction
Explanation:
Please help me identify the parts of this cell: No trick answers please
Answer:
1- membrane
2- ribosomes
3- mitochondrion
4- rough ER
5- dna
6- nucleolus
7- cytoplasm
8- nucleus
9- smooth ER
10- vesicles
11- golgi body
12- lysosome
Explanation: