Centrosomes and lysosomes are found in animal cells, but do not exist within plant cells.
The lysosomes are the animal cell’s “garbage disposal”, while in plant cells the same function takes place in vacuoles.
Plant cells have a cell wall, chloroplasts and other specialized plastids, and a large central vacuole, which are not found within animal cells.
The cell wall is a rigid covering that protects the cell, provides structural support, and gives shape to the cell.
The chloroplasts, found in plant cells, contain a green pigment called chlorophyll, which captures the light energy that drives the reactions of plant photosynthesis.
The central vacuole plays a key role in regulating a plant cell’s concentration of water in changing environmental conditions. follow me
Answer:
Describe the differences among meteoroids, meteors, and meteorites.
Explanation:
Why do the different genetic types of albinism result in a similar phenotype?
Answer:
Why are there different variations of albinism and why it results in the same basic phenotype?
The phenotypic heterogeneity of albinism is due to the different gene mutations affecting various points along the melanin pathway, resulting in varying degrees of decreased melanin production. Additionally, associated developmental changes occur in the optic system as a result from this hypopigmentation.
Explanation:
can someone please answer this for me?
Answer:
50 %
Explanation:
Using a punnets square the four possible crosses are Hh, Hh, hh, and hh. This means there is a 50% chance the child has hh or hemophilia
Explain the difference between herbivores, carnivores and omnivores
Answer:
Herbivores are organisms that eat plants only. Carnivores are organisms that eat other animals only (meat). Whereas, omnivores are organisms that eat both plants and animals.
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Implantation Which of the following sequences correctly describes prenatal development? A. blastocyst implants in uterus, zygote forms, heart begins beating, lungs can breathe air, sex organs become visible B. blastocyst implants in the uterus, zygote forms, heart begins beating, sex organs become visible, lungs can breathe air C. zygote forms, blastocyst implants in the uterus, heart begins beating, sex organs become visible, lungs can breathe air D. zygote forms, blastocyst implants in the uterus, sex organs become visible, heart begins beating, lungs can breathe air 3. Which of the following correrti
Explanation:
A because in the pental development the men and women sex others for there fun and baby in this ara
The overriding problem with both theories of muscle growth, hypertrophy and hyperplasia, is that __________. A. neither can be accepted as correct because muscles growth is difficult to study in humans B. neither one is theoretically possible C. neither has been studied by reputable scientists D. neither has been accepted by member of the fitness community Please select the best answer from the choices provided.
Answer: A. neither can be accepted as correct because muscles growth is difficult to study in humans.
Explanation:
Hypertrophy can be defined as the increase in the fiber size of the muscle whereas the hyperplasia can be defined as the increase in the number of muscle fibers. Additionally the hypertrophy suggests that adding more proteins to the fibers is suggestive of the growth of the muscles. But these two theories cannot be directly related to the muscle growth in humans as the development and growth of muscles are dependent upon several factors like diet, any kind of disease which restrict the muscle growth and movement, physical activities, mineral availability responsible for growth, malnutrition, and others.
Answer:
A
Explanation:
Baseball Bat Testing
Swing Force (N) Wood (Distance ft) Aluminum (Distance ft) Alloy X (Distance ft)
100 10 15 25
200 20 22 30
300 25 35 80
400 100 140 140
500 200 225 200
600 300 400 300
A baseball bat company is testing a new mixture of metals that they claim will improve the power of its bats for very powerful batters. Given the provided data of three bat compositions, swing force, and resulting ball travel distance, what conclusion can be made regarding this new composition?
A) There is no hypothesis provided.
B) The hypothesis of the company is refuted.
C) The hypothesis of the company is verified.
D) The hypothesis was neither verified or refuted
Given the provided data of three bat compositions, swing force, and resulting ball travel distance, the conclusion that can be made regarding this new composition is that the hypothesis of the company is verified when a swing force of more than 100 is applied.
What is a hypothesis?A hypothesis is an explanation of an occurrence that can be tested, analyzed, and then either confirmed or denied. It's a tentative answer to a question that can be checked by conducting an investigation.What is Swing Force?The swing force is the force that a batter applies to a baseball bat in order to hit the ball. A swing force of 100N means that a batter applied 100N of force on the baseball bat.What is the difference between wood, aluminum, and alloy baseball bats?
Wooden baseball bats are made entirely of wood. Aluminum baseball bats are made entirely of aluminum. Alloy baseball bats are made of a mixture of aluminum and other metals such as copper, magnesium, and zinc, to name a few.What conclusion can be made?The hypothesis of the company is verified when a swing force of more than 100 is applied. As a result, the new mixture of metals improved the power of its bats for very powerful batters. Hence, the answer is (C) The hypothesis of the company is verified.
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explain how carbon atoms can move to co2 in the air into an organic molecule inside a plant and then back to co2 in the air
Answer:
Your carbon atom enters the leaf as CO2 (carbon dioxide) from the atmosphere. In the leaf, chlorophyll uses the energy from the sun to convert CO2 and H2O to the sugar glucose, C6H12O6. Your carbon atom is part of this molecule; it is now one of the carbons in the glucose.
Next, the glucose carrying your carbon atom is sent down the phloem tissue of the carrot plant to the root, which is the carrot itself. Enzymes in the carrot root connect the glucose molecule with your carbon atom into a chain with other glucose molecules, forming cellulose, or plant starch, and there you go. Your carbon atom went from being part of an atmospheric gas to a starch via photosynthesis and starch formation in the root.
Explanation:
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An ___________ is a trait or characteristic that helps a living thing, or organism, survive. These characteristics can be passed on from parent to offspring. They are passed on until most of the animals in the species have the helpful trait. Animals can also develop adaptations based on how they interact with the environment.
Answer:
Adaptation
Explanation:
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What is one characteristic animal have in common with a mushroom?
Answer: Animals and fungi share a common ancestor and branched away from plants at some point about 1.1 billion years ago.
Don’t understand need help
Answer:
I think c
Explanation:
I took the quiz but I m not sure
3) What template have you chosen to use and why
Answer:
be more speific in your question
Explanation:
Solar Energy Supply Part 4 0.0/5.0 puntos (calificado) Now let's look at the land needed for solar to supply all the energy needs of the USA. Since the electricity can be used with nearly 100% efficie
land needed for solar to supply all the energy needs of the USA is Energy production / 20 W/ft².
To determine the land needed for solar energy to supply all the energy needs of the USA, we need to consider the total energy consumption of the country and the efficiency of solar panels.
The energy consumption of the USA varies over time, but according to the U.S. Energy Information Administration (EIA), the total primary energy consumption in 2020 was approximately 92.94 quadrillion British thermal units (Btu).
To convert the energy consumption into the energy produced by solar panels, we need to consider the efficiency of solar panels. The efficiency of solar panels can vary, but let's assume an average efficiency of 20%. This means that solar panels can convert 20% of the sunlight they receive into usable electricity.
Now, we can calculate the energy production from solar panels:
Energy production = Energy consumption / Solar panel efficiency
Energy production = 92.94 quadrillion Btu / 20%
To convert the energy production into the area of land needed, we need to consider the average energy production per unit area of solar panels. The average energy production of solar panels can vary based on factors such as location, sunlight intensity, and panel technology. Let's assume an average energy production of 20 watts per square foot (W/ft²).
Now, we can calculate the land needed:
Land needed = Energy production / Average energy production per unit area
Land needed = Energy production / 20 W/ft²
The resulting value will be in square feet (ft²), representing the land area needed for solar panels to supply all the energy needs of the USA.
It's important to note that this calculation provides a general estimation based on the given assumptions of energy consumption, solar panel efficiency, and average energy production per unit area. The actual land needed may vary depending on specific factors and technological advancements in the future.
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Select the correct image.
Which image best illustrates the magma convection currents within Earth’s interior?
Answer:
the thrid one is the best one
The image that best illustrates the magma convection currents within Earth’s interior is the bottom left.
What is Convection?Convection may be defined as a process through which the transfer of heat due to the bulk movement of molecules within a fluid takes place. The current which is produced by the movement of these molecules is known as the Convection current.
Convection currents are present in the mantle region of the earth's surface. In the process of heating, magma rises from deep inside the mantle and then cooled the mantle as it flows down. This cyclic movement of magma constructs convection current within the region of the earth's interiors.
Therefore, the image that best illustrates the magma convection currents within Earth’s interior is the bottom left.
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The regulation of body temperature is a contributor to homeostasis. What body
system is responsible for this?
Digestive System
Musculoskeletal System
Nervous System
Circulatory System
Answer:
its the nervous system and the endocrine system
Explanation:
the nervous and the endocrine are the bodys main regulators
A command economy features:?
Answer:
A command economy is a system where the government, rather than the free market, determines what goods should be produced, how much should be produced, and the price at which the goods are offered for sale. It also determines investments and incomes. The command economy is a key feature of any communist society.
Explanation:
Newyork is near 40 degrees N. What general direction is air moving in Newyork
Answer:
The air in New York moves to the north.
Explanation:
At a global level, it occurs unequal warming of the atmosphere, which depends on many factors and varies with latitude. These temperature differences occur because solar radiation reaches the earth differently at different latitudes degrees. The result is the formation of convective cells of atmospheric air circulation: Hardley cell, Ferrel cell, and Polar cell.
The term convective cell refers to air getting warm, expanding, getting less dense, and ascending. During ascension, it gets colder because of the change in high, contracting, becoming thicker. Finally, it descends.
In each hemisphere, warm air ascends at the equator and approximately at 60º latitude. Cold air descends at approximately 30º latitude and the poles. These air masses circulation generates superficial winds that blow toward the equator between 0º-30º, and toward the poles between 30º-60º lat.
Ferrel cell occurs between 30º and 60º latitude. At 30º lat, the cold air coming from the north in the tropopause meets the cold air coming from 0º, and both descend to lower altitudes due to its density and low temperature. When these air masses reach the ground, they diverge. One part goes to 0º lat, while the other part goes forward to the north. As it moves north, it gets warmer for being at lower altitudes. At 60º, this warm air coming from the 30º meets the polar air coming from 90º, and as it is warmer it ascends again. When it ascends to the tropopause, it is pushed by new air and moves to the south again. While doing so, it loses heat and becomes denser, descending again at 30º. And so the cycle starts all over again. New York is located at 40º latitude approximately, so air goes forward to the north pole near the ground, but at 60º it elevates again. New York is then affected by the Ferrel cell.
In the attached image you will find the three cells, circulating in different directions.
Some evidence that vaccines are effective.
Answer:
Vaccines prevent diseases, its just proven. Most Anti Vaccers end up getting Measles, etc. But people with vaccines usually dont.
Explanation:
we are living proof to be honest, i got the chicken pox vaccine and never had it once in my life. Same thing with many other diseases we get vaccinated for.
______and____ are early tetrapods that do not have features unique to fish. Describe how these two species differ antaomically and what that means about where they each live.
Describe an example of analogous structures. What additional evidence would help you show that these structures are not homologous?
Answer:
The wings of birds and bats.
Explanation:
The wings of birds and bats is the example of analogous structures. Analogous structures refers to those structures that are similar in those organisms that are unrelated or different to one another. The wing structures are similar in both birds and bats because they are evolved to do the same job which flying. It is not evolved because they were inherited from a common ancestor. These wing structure of both bat and bird look similar from the outside but internally they are totally different from one another.
All of the following are characteristics of animals except
a. exclusively sexual reproduction b. eukaryotic cells
c. multicellular organisms
d. heterotrophic nutrition e. gastrulation
The characteristic of animals that does not apply to the given options is (a) exclusively sexual reproduction.
While animals commonly exhibit sexual reproduction, it is not an exclusive characteristic of the animal kingdom. Some other organisms, such as plants and fungi, also have the ability to reproduce sexually. Therefore, option (a) does not uniquely define animals.
Options (b), (c), (d), and (e) are all characteristics that generally apply to animals. Animals are composed of eukaryotic cells (option b), they are multicellular organisms (option c), they obtain nutrition by consuming organic matter (option d), and they undergo gastrulation, which is a key developmental process involving the formation of germ layers during early embryonic development (option e).
It is important to note that while sexual reproduction is common in animals, there are a few exceptions. Some animal species can reproduce asexually or exhibit other reproductive strategies in addition to sexual reproduction.
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What effects will be manifest in an extremely small population with little to no migration?
An extremely small population with little to no migration can have several effects.
These effects include an increased risk of genetic drift and inbreeding depression.
Genetic drift: Genetic drift is a random change in allele frequencies that occurs in small populations. Since smaller populations have less genetic variation, genetic drift is more common. Genetic drift can reduce genetic diversity in a population, which can lead to the fixation of deleterious alleles.
Inbreeding depression: Inbreeding depression is a loss of fitness that occurs when closely related individuals mate and produce offspring. Inbreeding depression can occur when a population becomes small and isolated, and the mating pool is reduced. Inbreeding depression can lead to reduced fertility, increased susceptibility to disease, and lower survival rates.
Additionally, inbreeding depression can reduce genetic diversity in a population, which can make it more susceptible to environmental change. Therefore, an extremely small population with little to no migration can lead to an increased risk of genetic drift and inbreeding depression.
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complex interactions must occur before solar energy is converted into a form of energy humans need to work and perform many life processes truth the sequence that best shows the path of energy
A) radiant energy --> mechanical energy --> chemical energy
B) heat energy --> light energy --> photosynthesis
C) radiant energy --> chemical energy --> mechanical energy
D) mechanical energy --> chemical energy --> radiant energy
What types of light can plant cells absorb? Select 3 answers to get this correct.
True or False? All mutations have a negative effect on a population of organisms.
Answer:
False, I believe. Mutations sometimes might have an effect that helps the population. Example: I've heard of Two-Headed snakes, and even seen some on the internet. They live their lives just fine, so I suppose the mutation was actually quite helpful.
Answer:
false
Explanation:
During summer in the Northern Hemisphere,
A. the Sun rises in the Southeast and sets in the Southwest.
B. the Sun appears lower in the sky than during other seasons.
C. there are fewer hours of visible sunlight each day than during other seasons.
D. the Sun rises earlier and sets later than during other seasons.
Answer:
B the sun appears lower in the sky
(f) would you recommend using the model found in part (a) to predict the bone mineral density of a woman who consumes two cans of cola per day? why?
The model found in part (a) can not be used to predict the bone mineral density of a woman who consumes two cans of cola per day. To write the least-squares regression equation, and then use this equation to predict the bone mineral density for a woman weighing 68 kg.
Firstly, it is noteworthy that the predictor variable in the given regression model is "weight (kg)". In other words, the model is built on the association between the weight of women and their bone mineral density. Therefore, the independent variable in the regression model is "weight", not "consumption of cola".You can not use this model to predict the bone mineral density of a woman who consumes two cans of cola per day because the regression model does not involve the variable "consumption of cola". Since the given regression equation is solely built on the association between weight and bone mineral density, using this model to predict bone mineral density for a woman who consumes two cans of cola per day would lead to unreliable results.
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What type of cells are body cells
Answer:
there are 4 type of body cell
Brain lateralization refers to the ability of the brain to process multisensory information ability of the brain to process multisensory information A capacity of the brain to control basic motor movements capacity of the brain to control basic motor movements B aptitude of the brain to produce speech aptitude of the brain to produce speech C ability of the brain to control basic functions such as respiration and blood circulation ability of the brain to control basic functions such as respiration and blood circulation D inclination for certain cognitive processes to be specialized to one hemis
Answer:
The correct answer is D ''inclination for certain cognitive processes to be specialized to one hemisphere of the brain or the other.'
Explanation:
Lateralization refers to the different specialization of the cerebral hemispheres, that is, it is the functional specialization of the nervous system that is observed to a different degree on one side or the other of the neuroaxis. Our brain is subdivided into two hemispheres, the right and the left. The left hemisphere is more specialized in language and control of emotions and the right in spatial thinking, perception of emotions and facial recognition.
Why do hydrogen atoms form a molecule but helium atoms do not?
Answer:
Explanation:
In terms of old school electron shells - One Hydrogen atom on it's own has an empty shell, and therefore to fill the shell it needs another electron. In the case of Helium, it already has two electrons at the same energy level - so it cannot accept any new electrons i.e. it cannot form new bonds.
Answer:
Hydrogen atoms can form a molecule as 2 hydrogen atoms together can result in a low energy combination of 2 electrons of the same energy level.
Explanation: Helium atoms already have 2 electrons of the same energy so therefore it cannot accept more.
How is RNA different from DNA?
A. DNA is double stranded, contains uracil, sugar is ribose
B. DNA is single stranded , contains thymine , sugar is deoxyribose
C. RNA is single stranded, contains thymine , sugar is ribose.
D. RNA is single stranded , contains uracil , sugar is ribose
Answer:
D. RNA is single stranded , contains uracil, sugar is ribose
Answer:
D. RNA is single stranded , contains uracil , sugar is ribose
Explanation:
RNA contains the sugar ribose, while DNA contains the slightly different sugar deoxyribose