Explanation:
In the beginning, there was an infinitely dense, tiny ball of matter. Then, it all went bang, giving rise to the atoms, molecules, stars and galaxies we see today.
Or at least, that's what we've been told by physicists for the past several decades.
But new theoretical physics research has recently revealed a possible window into the very early universe, showing that it may not be "very early" after all. Instead it may be just the latest iteration of a bang-bounce cycle that has been going on for … well, at least once, and possibly forever.
Of course, before physicists decide to toss out the Big Bang in favor of a bang-bounce cycle, these theoretical predictions will need to survive an onslaught of observation tests.
The initial singularity is a singularity predicted by some models of the Big Bang theory to have existed before the Big Bang and thought to have contained all the energy and spacetime of the Universe.
Which of the following is made of cells?
A. Blood
B. Muscle tissue
C. Nerves
D. Oxygen
The answer is A. Blood
If PCBs escaped into the river in large amounts and entered the lower levels
of the food chain, what would be the likely outcome?
Answer:
Over time, PCBs would collect in top predators such as salmon, making them unsafe for human consumption.
Explanation:
PCBs last a long time in the environment before breaking down and may find their way into the food chain. Low levels of PCBs can be found in fish, shellfish, meat, poultry, milk, dairy products, and other foods. Since PCBs have not been made since 1977, the levels in the environment have been declining over the past several years. Predators at or near the top of the food chain (e.g. birds, fish) have the highest levels of PCBs in their bodies.
When two molecules are put in the same container they do not attract each other. Why does this happen?
a.they are both polar
b. they both contain oxygen
c. one is polar one is nonpolar
d. they contain different elements
Answer:
The correct answer is C.
C. One is polar one is nonpolar
Explanation:
What do you think is the most practical method of processing fruits and vegetables? Why?
Answer:
eating them
Explanation:
or throw them away
The heart is an example of which level of organization within an organis m cell Oorgan tissue organ system Save and Exit Next Submit Mark this and returns
Answer:
Organ
Explanation:
The heart is an organ. It is made up of a few different tissues - cardiac muscle, conductive tissue, valves, vessels and connective tissue. These tissues are composed of different cells, but they work together to form a common function.
The heart is part of the cardiovascular system which pumps blood throughout the body. It includes the heart, blood vessels and the blood
what are similarities & differences between electrons and protons? (in one sentence)
Answer:
A similarity between electrons and protons is that when trying to find the atomic number the are equal, A difference is that they both have different names, and a different charge.
Hope this helps :)
Which of the following are parts of the circulatory system?
A.heart, veins, arteries, capillaries
B.heart, brain, arteries, lungs
C.heart, spine veins, brain
D.heart, esophagus, veins, capillaries
Answer: heart, brain, arteries, and lungs
Explanation:
Answer: B.
Explanation:
Overuse injuries are a common issue many athletes and even everyday people face. I want you to research what an overuse injury is. What is an overuse injury? What causes overuse injuries? What are some symptoms that might be warning us that an overuse injury might occur? Are there any long-term consequences if we ignore these symptoms? How can we prevent it? What are some common overuse injuries? These are some suggestions about what you can research. I want 3 paragraphs due by the end of the day tomorrow.
Define regulating services in your own words
define providing services in your own words
Answer: did this
Explanation:
I NEED HELP ASAP! (Picture is attacted) You Dha Real One IF YOU DO!
Linnaeus developed two groups for classifying organisms: genus and .
Answer:
Species
Explanation:
Carl Linnaeus was a Swedish scientist who developed a formal system of naming organisms- bionnomial nomenclature
The first part of the name identifies the genus to which the species belongs, and the second part identifies the species within the genus.
For example the tiger is called "Panthera tigris". The species is tigris (tiger).
The genus is Panthera (which also includes the lion (Panthera. leo), the jaguar (Panthera onca), and the leopard (Panthera pardus). The species is "tigris"
Answer:
Species
Explanation:100% on my test
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Which is a factor that keeps Earth in orbit around the Sun?
the orbital path of the moon
the gravitational pull of the Sun
the continuous motion of the universe
Earth’s changing speed and direction
Answer:
The gravitational pull of the Sun
Explanation:
Name of the element whose chemical symbol is Mg?
a
microgram
b
malorganite
c
magnesium
d
manganese
Answer: Magnesium is the correct answer
The __ releases enzymes that digest proteins
Answer:
Digestive Enzymes.
Explanation:
I don't really have an explanation.
Answer:
pancreas
Explanation:
How is energy transferred from one organism to another ? A. by one side draining the energy of the other organism B. by one organism eating another organism C. by one organism giving the other one energy D. by one organism attacking the other organism
Summarize translocation in your own words
Answer:
This word mainly means to move from place to another, but in this case, it's talking about genes when a part of a chromosome is moving to another part of the chromosome.
Q 9. How do the heart and the lungs work together?
PLEASE HELP! PRESS THE PICTURE ABOVE!!!
What is a small ecosystem in danger of compared to a large and diverse ecosystem?
Answer:
See the answer below
Explanation:
A small ecosystem is in danger when compared to a large and diverse ecosystem because the genetic variability in a small ecosystem is low and a small disruption can wipe out the populations within the ecosystem. This is unlike in a large ecosystem where this is a high genetic variability that gives the populations within the ecosystem resilience against disturbances.
There are enough alleles within the genetic pool of a large and diverse ecosystem to withstand disturbance regimes unlike in small ecosystems where the alleles are few. Hence, a little disturbance can endanger the entire population in a small ecosystem and put them at the risks of extinction.
How could membrane fluidity be maintained in human cell membranes as the temperature decreases
Answer:
"At low temperatures it increases membrane fluidity by preventing fatty acid hydrocarbon chains from coming together and crystallizing."
Explanation:
When you exercise and your
body temperature rises, how
does your body maintain
homeostasis? What are some
things that happen? How do you
cool off? What happens to your
breathing? Blood flow?
Answer:
During exercising, your body's temperature levels up and one of the body's mechanisms of homeostasis is perspiration, which is sweating. Sweat helps cool off the body by excreting the heat to the exterior surface f the body and it gets rid of excess fluids and salts. The breathing rate also gets higher due to the physical activity. Blood flow will increase as well, as the blood vessels dilate and get wider allowing more blood to pass through.
1) Which of the following statements is TRUE with regard to the human hand?
a) There are 5 carpals, 8 metacarpals and 14 phalanges.
b) There are 8 carpals, 6 metacarpals and 14 phalanges
c) There are 8 carpals, 5 metacarpals and 15 phalanges
d) There are 8 carpals, 5 metacarpals and 14 phalanges
e) There are 5 carpals, 8 metacarpals and 15 phalanges
Carpal bones are bones of the human hand and consists of eight wrist bones which connects hand to the forearm. The Wrist is known as carpus and is the sole cluster of bones.
These bones don't belong to fingers and are labeled in alphabetical order from A to H. The metacarpals are thin and long bones that are connected by carpal bones in the wrist and the phalanges. They all are made of a base, shaft, and head. The first metacarpal is the thickest and shortest of them all. The phalanges are tubular ones in the thumb and the fingers found in the foot.They consist of proximal, distal, and middle phalanx. hence fourteen in total.Hence the option D is correct that is 8 carpals, 5 metacarpals, and 14 phalanges.
Learn more about which statement is true regarding the human hand.
brainly.in/question/35832145.
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Just as energy flows through an ecosystem, matter also moves from organism to organism and from organisms to the environment. Using either a kelp forest or a hydrothermal vent ecosystem as an example, explain how carbon can move through the organisms
Answer:
The seaweed in the Kelp forest goes through photosynthesis, takes in carbon, other organisms eat the seaweed and take in the carbon.
Do cells respond to every signal? Explain.
Answer:
No, they only respond to a signal if they have a receptor that can receive the signal.
Explanation:
1)When a phosphate is transferred from ATP, it can phosphorylate another molecule. How could this assist in allowing a protein to transport molecules against their concentration gradient?
2)What is it about the structure of ATP that contributes to its ability to act as an energy currency?
Answer/Explanation:
1) When phosphate is transferred from ATP, (which forms ADP and releases energy) it can phosphorylate another molecule. When this molecule is phosphorylated. It could become "energized" as it enters a higher energy state.
In this higher energy state, the protein has the energy to transfer molecules against a concentration gradient, which is an active process (requires energy).
2) Adenosine triphosphate contains three phosphate groups. The phosphate bonds are high energy. When ATP is hydrolyzed (water is added), these high energy phosphate bonds are broken and energy is released. This forms adenosine diphosphate (ADP).
1) When a protein molecule is phosphorylated, it becomes activated or powered and enables it transport molecules against their concentration gradient.
2) The bond that holds phosphate bonds in ATP gives it the ability to act as an energy currency.
ADENOSINE TRIPHOSPHATE (ATP)
Adenosine triphosphate, commonly known as ATP, is the means by which energy is stored and released in the cells of biological organisms. ATP is structurally made up of a ribose sugar, an Adenine base and three phosphate groups. The phosphate groups are held together by a bond called phosphoanhydride bond. ATP stores energy when one phosphate molecule is added to ADP while it releases energy when one phosphate group is broken. This latter process is called PHOSPHORYLATION. The ability of ATP to lose and accept phosphate group in its structure makes it perform the role of an energy currency in the cell.However, when a phosphate group is added to a molecule e.g. a transport protein, it is said to be phosphorylated. This means it will become activated or powered up to perform the task of transporting molecules against their concentration gradient.Learn more: https://brainly.com/question/15585148?referrer=searchResults
Which of the following is caused by bad genes? *
Carcinoma
herpes
athlete's foot
vitaligo
bubonic plague
.A substance from outside needs to reach genes in the cells of your body. In which order will it encounter different parts of the cell? cell wall -- cell membrane--- nuclear membrane ---cytoplasm—gene cell membrane--- cytoplasm –gene cell membrane--- cell wall ----cytoplasm---- nuclear membrane---- gene cell membrane -----cytoplasm----- nuclear membrane----- gene
Answer:
cell membrane -----cytoplasm----- nuclear membrane----- gene
Explanation:
A cell is made up of three part this include the cell membrane, the cytoplasm and the nucleus.
cell membrane encloses the cells and it prevent external material from getting inside the cell while the nucleus is formed by a nuclear membrane around a fluid nucleoplasm. chromatin in the nucleus contain deoxyribonucleic acid (DNA) which is the genetic material of the cell.
The cytoplasm is fluid found in the cell. It is gel like in nature and a medium for chemical reaction.
cell membrane -----cytoplasm----- nuclear membrane----- gene
The arrangement will be a cell membrane for protection followed by the cytoplasm thatbis located in between the cell membrane and the nucleus then the nuclear member found around the nucleus. The nucleus contains the DNA which is the genetic information of an individual gene.
Deciding whether to buy a new lightweight helmet that provides less protection than a heavier helmet is an example of
A. risk-benefit analysis.
B. using technology wisely.
C. increasing the pace of life.
D. technology’s impact on the environment.
Answer:
The ways in which people change the world around them to meet their needs or solve practical problems are called
technology.
What is the goal of technology?
to improve the way people live
Science and technology are
dependent on each other.
4. This is the step in the scientific method in which you explain your results and whether your
hypothesis was correct.
a research
c. conclusion
b. results
d. hypothesis
Answer:
C conclusion
Explanation:
After doing experiment and making a hypothesis and getting results you make a conclusion about your results
Answer:
c. conclusion
Explanation:
The conclusion is the part where you make a conclusion about the results you got. Was your hypothesis correct or incorrect? Does the experiment have to be done again maybe in a different way? etc.
Therefore, it is answer c.
The pH of water is
because it contains an equal amount of HF and OH- ions.
7
9
6
Answer:
7
Explanation:
water is neutral 7 is neutral ph
Please help asap thank you so much
