Answer:
Nuclear reactions involve a change in an atom's nucleus, usually producing a different element
Explanation:
Chemical reactions, on the other hand, involve only a rearrangement of electrons and do not involve changes in the nuclei. Different isotopes of an element normally behave similarly in chemical reactions.
Which of the following is a correct product of mitosis?
2 haploid cells that are genetically identical to the parent cells
4 haploid cells that are genetically identical to the parent cells
2 diploid cells that are genetically identical to the parent cells
4 diploid cells that are genetically identical to the parent cells
PLEASE HELP! EASY!!
Which genotype below is identified as homozygous recessive?
Question options:
A) white hair
B) hh
C) HH
D) brown hair
The answer is option B: hh
homo means "two of", and a lowercase letter is indicative of a recessive allele.
Which of the following is a way to mitigate global warming?
Mitigation strategies include retrofitting buildings to make them more energy efficient; adopting renewable energy sources like solar, wind and small hydro; helping cities develop more sustainable transport such as bus rapid transit, electric vehicles, and biofuels; and promoting more sustainable uses of land and forests.
Cells that contain membrane-bound organelles are known as.
Answer:
Eukaryotes
Explanation:
are organisms whose cells contain a nucleus and other membrane-bound organelles.
Describe the relationship between the mass and metabolic rate of whales and seals in the Antarctic habitat. Explain why less massive species tend to require more energy to survive.
Organisms that have a higher metabolic rate due to large mass and hence require less energy
What is the relationship between metabolic rate and mass?We know that metabolic rate at which individual species carry out the process of metabolism.
It should be know that larger organisms that have a higher metabolic rate due to large mass and hence require less energy since metabolism produces heat. This owed to the fact that large size implies greater metabolism. Therefore, less massive species tend to require more energy to survive.
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William used a hammer to pound a nail into a wooden board. When the nail
was about halfway through the board, he stopped and turned the board upside
down. The nail stayed in place in the board. Which of the following acts on the
nail to keep it in place in the board?
F. friction
G. gravity
H. magnetism
I. weight
What is the genotype of the male in generation i?
Answer:
Heterozygous is the answer
4. Explain why nuclear radiation can be used to preserve food.
Answer:
The radiation destroys food-borne bacteria. Radiation is measured in units called rads. The FDA allows exposure of up to 100,000 rads for already approved foods. At this level, gamma rays penetrate the food and kill bacteria and other infectious organisms by preventing the organisms from dividing and growing
Explanation:
write out five examples each of food chain in terrestrial and aquatic habitat
Answer:
1.) Sun, Sea water plant, bottom feeder fish, shark,
Explanation:
I have done those questions before and I just gave a basic answer but Sun is always at the top because it gives energy for plants which is normally second like for example: Sun, Grass, Grass hopper, Snake, Bird, Spider (that eats birds or something)
How do I do this I really need help please ASAP
Answer:
1. The sock is attached to the shirt after tumbling in the dryer.
2. The sock and the shirt were not attached because there wasn't any certain friction before being tumbled in the dryer. After tumbling in the dryer, the
3. There wouldn't be any more static energy, so when you pull the sock and shirt apart from each other, there would be any friction/ static energy connecting them, so if you put them together again, they would not stick.
4. sock decreases because there is no more static energy connecting the 2 cloths.
Explanation:
Good luck with the exam!
Which phrase correctly identifies one way that veins function in the circulatory system?
Blood is carried under high pressure in veins.
Gas exchange takes place over the thick walls of veins.
Blood is prevented from backflow by valves in veins.
Nutrient exchange takes place over the thin walls of veins.
Veins carry blood back to the heart--often against the pull of gravity.
Answer:
Blood is prevented from backflow by valves in veins.
Explanation:
6. List three economic benefits of biodiversity.
Explanation:
Provision of wild harvested food products such as fish, large and small animals, and maple syrup. Provision of medicinal plants and raw materials for pharmaceuticals. Enabling nature-based tourism and the hunting and fishing industry.
Which choice below would represent an
organism with two dominant alleles?
A. Bb
B. bb
C. BB
Answer:
BB
Explanation:
BB means two dominant alleles
Explain two ways in which the alveoli are adapted to increase the efficiency of gas exchange
Answer:
Adaptations of the alveoli:
Moist walls - gases dissolve in the moisture helping them to pass across the gas exchange surface. Permeable walls - allow gases to pass through. Extensive blood supply - ensuring oxygen rich blood is taken away from the lungs and carbon dioxide rich blood is taken to the lungs.
A trait has two alleles represented by p and q. If p=0.22 what is q
Answer:
0.78
Explanation:
By using the Hardy-Weinberg equation.
HELPPPP PLSSSS I WILL LIKE ANSWER !! AND GET YOU POINTS
Answer:
I believe it's the 3rd one (C)
if destructive interference occurs between a wave with a six foot trough and a three foot crest, what factors will determine the height of the resulting wave?
Destructive interference formed when the two meeting waves are out of phase and in some cases, the two wavers maxima are 180 degrees out of phase. The height of waves is determined by the wind speed, how the long wind blows, and crucially the fetch.
The longer the duration of wave, the larger will be the wave heights. The longer the fetch, the large will be wave heights.
What is interference?Some waves jump to cross over or meet with each other. When they do, the reaction between the waves is called interference.
If at a given location, both interfering waves are supersede in the same direction (both up or both down) then it is known as constructive interference.
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Borh worker and queen bee are developed from fruel eggs .but why workers bee can not reproduce like that of queen bee?
Answer:
------->
Explanation: Why worker egg-laying occurs in honey bee colonies. Usually, colony behavior, egg-laying, and ovary development in worker honey bees are prevented by queen pheromones and open brood pheromones. However, in the absence of these regulating pheromones, workers may develop ovaries that will enable them to lay their own eggs.
How do flowers help other organisms in our environment?
Which organ system eliminates liquids and gaseous wastes from the body?.
Answer:
the bottom
Explanation:
the bottom because it lets loose all the liquids and gases
witch of the following is an example of newtons first law
a. using a force tp push a box
b. pulling back and arrow to shoot it forward
c. a table remains motionless in a classroom
d. none of the above
Answer:
c. a table remains motionless in a classroom
Explanation:
Why is it important to protect ecosystems? What could happen to the biotic and abiotic factors if we don’t take care of them?
What would be the impact on the organism and the biomes?
A rise in temperature in the tundra for the polar bears:
A decrease in rainfall for the flowers in the rainforest:
A decrease in temperature for jackrabbit in the desert:
An increase in temperature for the black bear in the temperate deciduous:
Why is it important to protect ecosystems? What could happen to the biotic and abiotic factors if we don’t take care of them?
It protects the resources and organisms that depend on one another in the ecosystem
What would be the impact on the organism and the biomes?
A rise in temperature in the tundra for the polar bears:
They would get overheated since they are prepared for the colder temps with their fur-also causes the ice to melt and alter its food supply
A decrease in rainfall for the flowers in the rainforest:
They would likely die due to a lack of water
A decrease in temperature for jackrabbit in the desert:
They would get very cold since they are used to the extreme heat
An increase in temperature for the black bear in the temperate deciduous:
They would get very hot and be trouble due to their fur and dark coloring
Refer to picture:
Kavinsky
what is a Bcell?
A. An antigen that makes antibodies
B. A lymphocyte that makes antibodies
C. A pathogen that makes antigens
D. A virus that makes bacteria
Answer: B
Explanation:
B cells are A type of white blood cell that makes antibodies. B cells are part of the immune system and develop from stem cells in the bone marrow they are also called B lymphocytes
Name each of the following compounds
3.1 CaSO4
3.2 CO
3.3 (NH4)2CO3
3.4 SiO2
3.5 SO3
3.6 Fe2O3
3.7 KBr
3.1 Calcium sulfate aka gypsum often used for construction
3.2 carbon monoxide dangerous part of exhaust
3.3 ammonium carbonate used in baking powders
3.4 silicon dioxide aka silica for making glass
3.5 Ferric oxide used in paints and coatings
3.6 potassium bromide which was used in veterinary medicine for the treatment of epilepsy
sciencedirect
njgov
healthline
byjus
eurosileu
A hypothesis must be _____.
controlled
testable
changed
scientific
Answer:
Testable
Explanation:
Hypothesis is a tentative idea that may prove to be the answer for problem so it may be testable
PLEASE MARK ME BRAINLIEST IF MY ANSWER IS CORRECT PLEASE
Answer:
testable
Explanation:
50 points!!
What type of nerve ending senses where parts of the body are located?
mechanoreceptors
pain receptors
proprioreceptors
thermoreceptors
Answer:
it is near the skins surface
Explanation:
and there based on morphology like so you feel warmth cold and freezing sweating all
Type of Receptor Location Sensation
Ruffini's corpuscles Dermis Touch, pressure, propioception
Nerve ending Hair follicle Touch
Cold receptor Dermis Cold
Warm receptor Dermis Warmth
-526073
Answer:
proprioreceptors
Explanation:
Which is a tectonic process that forces rock up from beneath earth's surface
Answer:
Uplift is a tectonic process that forces rock up from beneath earth's surface
Uplift is a tectonic process that forces rock up from beneath earth's surface.
What is tectonic process?
The process of plate tectonics may be driven by convection in Earth's mantle, the pull of heavy old pieces of crust into the mantle, or some combination of both.
Uplift, in geology, vertical elevation of the Earth's surface in response to natural causes. Broad, relatively slow and gentle uplift is termed warping, or epeirogeny, in contrast to the more concentrated and severe orogeny, the uplift associated with earthquakes and mountain building.
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Explain why the pyramid of ocean life directly affects human health.
Answer: humans eat some the ocean life, and other fish don't have any food because of it.
Explanation:
What Methods are used in identifying
primary literature in terms of population,
materials and instruments.
Why is gas exchange (think oxygen and carbon dioxide) necessary?
Answer:
Gas exchange allows the body to replenish the oxygen and eliminate the carbon dioxide.
