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:
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
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
Cells that contain membrane-bound organelles are known as.
Answer:
Eukaryotes
Explanation:
are organisms whose cells contain a nucleus and other membrane-bound organelles.
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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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:
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)
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.
How do flowers help other organisms in our environment?
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.
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:
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
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:
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
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.
Identify the interaction used to describe each type of interdependence among organisms. having too many fish in a pond can limit the amount of food and space available. the cheetah population depends on the gazelle population for food.
The dependence of the cheetah population on the gazelle population for food shows a kind of interdependent interaction.
What are interdependent interactions?They are a form of interaction between two organisms in which the survival of one is dependent on the other.
If the organism whose existence is important to the existence of the other should go extinct, it will greatly affect the survival of the latter.
Aside from going extinct, the rise and fall of one of the organisms affect the other either positively or negatively as well.
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Answers:
competition
predation
increase
Explanation:
Identify the interaction used to describe each type of interdependence among organisms.
✔ competition
Having too many fish in a pond can limit the amount of food and space available.
✔ predation
The cheetah population depends on the gazelle population for food.
Given the relationships identified above, determine what would happen to the populations under the following circumstances.
✔ increase
If the cheetah population decreases, what would happen to the gazelle population?
Got 100% on Instruction. Good luck :)
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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.
Compare and contrast the left and right hemispheres of the brain, briefly describing their primary functions.
The Split-brain theory describes the differences between left brain and right brain characteristics, functions, and understand the dominance brain.
What is split-brain theory?The split-brain phenomenon is caused by the surgical severing of the corpus callosum, the main route of communication between the cerebral hemispheres. The classical view of this syndrome asserts that conscious unity is abolished
The left brain handles reading, writing, and calculations. Some call it the logical side of the brain whereas The right brain is more visual and deals in images more than words. It processes information in an intuitive and simultaneous manner.
The left hemisphere controls the muscles on the right side of the body while the right hemisphere controls those on the left.
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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:
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:
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 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
What Methods are used in identifying
primary literature in terms of population,
materials and instruments.
Scientists at the university of florida recently said they had grown a plant related to mustard greens in what kind of soil, though the plant was less healthy than local crops?.
The type of soil in which the scientists had grown a plant related to mustard greens is : Moon soil
What is moon soil ?Moon soil is the type of soil which is found in the moon. scientists at the university have discovered that plants can grow in moon soil after they had successfully grown a plant related to mustard greens although with slight differences in quality in moon soil after almost a decade of research been carried.
Hence we can conclude that The type of soil in which the scientists had grown a plant related to mustard greens is Moon soil.
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If the genotype is heterozygous, what is the expressed phenotype?
Rr
dominant
recessive
RR
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.
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 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
What is the genotype of the male in generation i?
Answer:
Heterozygous is the answer
The roof of an eco-house is covered with soil. Covering the roof with soil decreases the thermal conductivity of the roof. What are the two of the choices listed below are advantages of having a roof with a lower thermal conductivity?
1) Less energy is needed to heat the house.
2) The rate of energy transfer by conduction is greater.
3) The roof is a better insulator.
4) The roof is less likely to leak.
5) Weather will have a greater effect on the temperature of the house.
Answer:
To understand how insulation works it helps to understand heat flow, which involves three basic mechanisms -- conduction, convection, and radiation. Conduction is the way heat moves through materials, such as when a spoon placed in a hot cup of coffee conducts heat through its handle to your hand. Convection is the way heat circulates through liquids and gases, and is why lighter, warmer air rises, and cooler, denser air sinks in your home. Radiant heat travels in a straight line and heats anything solid in its path that absorbs its energy.
Most common insulation materials work by slowing conductive heat flow and convective heat flow. Radiant barriers and reflective insulation systems work by reducing radiant heat gain. To be effective, the reflective surface must be in contact with an air space.
Answer:
Explanation:
A thick layer of material with a low thermal conductivity reduces the rate of heat transfer from the ceiling into the roof space.
