Answer:
Proton proton chain reaction involves the fusion of two hydrogen atoms.
Explanation:
Two protons combine together to form a deuterium nucleus, a neutrino and a positron.
This deuterium will then combine with another hydrogen to form a helium isotope with mass number three and gamma rays.
Now two helium isotopes combine to form a helium 4 nucleus and two protons.
These two protons will once again initiate another proton proton cycle.
These are called thermonuclear fusion reactions. They are responsible for the heat and light that are received from sun .
Proton proton cycle happens in all stars primarily.
hope this helps
plz can i get brainliest
Which type of fossil can help us understand an organism’s activity during its lifetime?
Answer:
Trace fossil which is D.
Explanation:
Answer: Trace fossil = D.
Explanation:
Trace Fossils provide knowledge about past organisms' biological activities and habits, such as tracks and trails, borings, burrows (bioerosion), gastroliths, and coprolites (fossilized droppings).
HELP ME AGAINN I'LL GIVE 17 POINTS -
What is the difference between how prokaryotic and eukaryotic cells maintain DNA within their structures?
A. Prokaryotic = excreted by ribosomes
Eukaryotic = collected in cell membrane
B. Prokaryotic = scattered throughout cell
Eukaryotic = stored in nucleus
C. Prokaryotic = stored in chloroplasts
Eukaryotic = manufactured in nucleus
D. Prokaryotic = excreted by vacuoles
Eukaryotic = stored in cytoplasm
Which of the following describes the genetic makeup of Angela?
Answer:
Pls attach an image so I can do it, then I can answer
Explanation:
20.The first diagram below shows an original sequence of DNA. The second diagram shows a mutation that occurred when the DNA was copied. Name and describe the kind of mutation that occurred.
Answer:
This is a subsitution mutation.
Explanation:
the seconed DNA strand of G/C was replaced with T/A
Edith is a professional triathlete who typically runs twice a day to train for her upcoming events. During her last nightly run, she observed a Waxing Crescent moon in the sky.
Which dates below would indicate the next time she would see a Full Moon on her nightly run?
Answer:
8
Explanation:
because it is every one week
The TARGET strategy is used to (2 points)
Group of answer choices
create a brainstorm and generate a cluster of ideas.
identify main ideas and arrange them in sequential order.
focus the main points in writing and give flow to the ideas.
frame a paragraph with specific details and examples.
Answer:
b
Explanation:
Answer:
b.) identify main ideas and arrange them in sequential order.
Explanation:
best answer gets brainlyest what are the building blocks of life?
what type of bird egg is this btw i live in sc i found it in my backyard my dog was about to step on it
pls say right answer
Answer:
Can you paste a picture here?
How far away is a thunderstorm if it takes 3 seconds for sound to be heard? The air temperature is 23 degrees Celsius .
Answer:
1 kilometer
Explanation:
◕‿↼ Please Asap, Tysm!
→ Match these items ←
1 .
condensation
the major source of pollution
2 .
troposphere
the changing of a gas to a liquid
3 .
ozonosphere
the changing of liquid to a gas
4 .
evaporation
carbon dioxide and water vapor trapping heat given off by Earth
5 .
greenhouse effect
layer responsible for reflecting radio waves
6 .
automobile
layer absorbing ultraviolet rays
7 .
ionosphere
the layer in which weather changes occur
Answer: condensation-the changing of a liquid to gas.
Explanation
1. Condensation- the changing of a gas to a liquid.
2. troposphere-the layer in which weather changes occur.
3. ozonosphere-layer absorbing ultraviolet rays.
4. evaporation-the changing of a liquid to a gas.
5. Greenhouse effect- carbon dioxide and water vapour trapping heat are given off by Earth.
6. Automobiles- the major source of pollution.
7. ionosphere- layer responsible for reflecting radio waves.
Links if you want to learn more:
https://climate.nasa.gov/news/2919/earths-atmosphere-a-multi-layered-cake/#:~:text=Earth%27s%20atmosphere%20has%20five%20major,%2C%20mesosphere%2C%20thermosphere%20and%20exosphere.
Which organism is not limited by size because of its structures and life cycle?
A. firefly
B. octopus
C. tree frog
D. orca
Answer: D. orca
Explanation:
DO NOT SEND ME LINKS OR PDFS IF YOU DO YOU WILL BE REPORTED IF YOU ANSWER CORRECTLY WILL GET BRAINLIEST
Why is the thickness of an Arctic hare's fur an important adaptation in their environment?
A.An Arctic hare has thin fur to help it escape predators faster.
B.The thickness of an Arctic hare's fur helps it attract a mate.
C.An Arctic hare has thick fur to keep it warm in the extreme temperatures in the Arctic.
D.The thickness of an Arctic hare's fur helps it gather and hide food.
Answer:
The correct answer is C. An Arctic hare has thick fur to keep it warm in the extreme temperatures in the Arctic.
Explanation:
The Arctic Hare has thick fur in order to keep itself warm during the temperatures that it has to endure in the Arctic, and also blend in with its surroundings. By them having thick fur, it allows them to adapt to their environment, and helps them to keep warm when digging holes beneath the snow to escape the cold, piercing wind.
Hope this helps! :)
Which are true of electromagnetic waves? Select all that apply.
They have different wavelengths.
They have the same frequency.
They all travel at the same speed.
When they travel outside of a vacuum, their speeds increase.
Answer:
Select
a and c
Hope it helps, please mark as brainliest.
Question about space, question in the photo.
Answer:
We are limited by not having enough resources, research, or technology to last all the way to the ends of the univers.
Explanation:
This is because humans cannot live without food and water and oxygen for so long.
where does light-dependent reactions Calvin cycle take place at?
Answer:
They take place in the chloroplast :)
why some of the Darwin’s bark spiders have different traits for silk flexibility? Use the above words in your response. USE THESE WORDS NOW Word Bank
molecule protein
structure trait
IF U DONT GIVE ME THE ANSWER WITH THESE WORDS im slicing your throat :D
WORTH 30 POINTS
Which statement describes the most likely impact of the mutation in the mutated sequence?
A The protein formed will not be the same as that formed from the original DNA sequence.
B There will be no effect because the rest of the DNA is normal.
The mutated DNA will code for the same number of amino acids as the original sequence.
D The extra nucleotide will be deleted before the protein is formed.
Answer:
I think it's A but thats just my best guess
what three taxa do all these organisms have in common?
Housecat
Moutain lion
domestic dog
human
Deserts typically have average daytime temperatures of around 100°F, while the average daytime temperature in tropical
rain forests is around 85°F. However, the average monthly temperatures in the desert are lower than the average
monthly temperatures in a rain forest. Explain the reason for this difference.
Answer:e
Explanation:it its different because when a desert ends up cooling down than you have to deal with cold temperatures sorry if i spelled that wrong also rainforest keep that heat in because of the trees so the desert doesn"t have any trees not enough to keep the heat in so the heat gets out and the temperatures end up cooling down hence why the rainforest has a higher temp.
A serving of vanilla ice cream is 120 g. One serving contains 230 calories. If you have only 100 g of vanilla ice cream, how many calories did you have?
Answer:
191 [tex]\frac{2}{3}[/tex] calories
Explanation:
Create a proportion where x is the number of calories
[tex]\frac{120}{230}[/tex] = [tex]\frac{100}{x}[/tex]
Cross multiply and solve for x
120x = 23000
x = 191 [tex]\frac{2}{3}[/tex]
So, in 100g of ice cream, you will have 191 [tex]\frac{2}{3}[/tex] calories
HELPPPPPPPPPPPP PLSSSSS I NEED HELP WITH THIS ANSWER
Was it a good idea for the CDC to pause the Johnson and Johnson vaccine? Why or Why not?
Would you take the Johnson and Johnson vaccine if it was offered to kids your age? Why or Why not?
Answer:
the vaccine is very important
Explanation:
step by step explenation
pls answer both, no fake answer or i'll report
1. An explanation of genetic engineering and how it works
2. A description of DNA and its role in all living things
Answer:
1. Genetic engineering is when a gene is physically removed from one organism and putting it into another.
2. A description of DNA is organic chemical that contains the genetic instructions for living things to function. The role of DNA is develop, survive and reproduce.
What does the Mitochondria do to produce a ton of energy
Answer:
Mitochondria use oxygen in the cell to convert chemical energy from the cell's food into energy that can be used by the host cell.
Explanation:
hope this helps :)
Answer:
Mitochondria, using oxygen available within the cell convert chemical energy from food in the cell to energy in a form usable to the host cell. ... NADH is then used by enzymes embedded in the mitochondrial inner membrane to generate adenosine triphosphate (ATP). In ATP the energy is stored in the form of chemical bonds.
Explanation:
PLEASEE HELP ME I AM GIVING AWAY ALL MY POINTS FOR THIS JUST PLEASE ANSWER ALL 4 WITH WORK!!!!!!
Answer:
6, 7,12,18
Explanation:
◕‿↼ Please Help Asap, Tysm!
→ Match these items ←
1 .
tropical rain forest
hot and wet all year long
2 .
tundra
a type of rain forest vegetation
3 .
permafrost
moist wind from the ocean
4 .
desert
grasslands near equator
5 .
monsoon
moist continental
6 .
deciduous forest
dry summers and cool wet winters
7 .
steppes
hot, dry, sparse vegetation
8 .
Mediterranean
semiarid, grass and scattered trees
9 .
alpine
climate changes with altitude
10 .
jungle
cold, high latitudes
11 .
savanna
frozen ground
Answer:
first three can stay the same
desert hot, dry, sparse vegetation
Explanation:
FORENSICS SCIENCE WORK
Which fibers are more useful in identifying a suspect:
A. fibers that a suspect brings to the crime scene,
B. fibers that the suspect carries away from the crime scene?
Answer:
B.
Hope it Help
Explanation:
Brainliest please
Which of the following features is common to prokaryotes and many eukaryotes?
The nuclear membrane is present
Membrane-bound subcellular organelles are present
Chromosomes are present
The cell wall is present
Scientists once tried to use potatoes to make vaccines. Why do the scientists think that using soybeans will be more successful?
Answer:
Scientist think so because soybeans can observe and grow
Explanation:
Potatoes are already grown. A soybean can track whether the bean will sprout easily and healthy. A dead soybean means the vaccine isn't safe.
Hope this helped!
Give an example of a positive association you have with a particular smell. What role does your limbic system play in this association?
I believe it is the olfactory bulb!