Answer:
D. Both plant and animal cells
Explanation:
The explanation is that animal and plant cells are eukaryotic cells which means they have a nucleus which contains and protects the genetic material. Bacteria is a prokaryotic cell which means it does have genetic material but doesn't have a nucleus.
why is it important to classify the millions of species on earth
There are millions of species that exist on Earth. This helps in organizing each specie according to the characteristics, and traits. The classification is done to show the hierarchy and focuses on the relationships that the organisms possess with other organisms about evolution.
The change in heart rate that occurs between 1 and 5 minutes of exercise is an adaptation that
A. Reduces the rate at which oxygen is carried to the muscle cells
B. Increases the rate at which carbon dioxide is carried to the muscle cells
C. Results in the production of more ATP in muscle cells
D. Slows the destruction of enzymes involved in respiration of muscle cells
Answer:
C. Results in the production of more ATP in muscle cells
Explanation:
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HELP!!! 50PTS!!!
A population of deer has a carrying capacity of 875 deer, with a maximum rate of increase of 1.0 per individual per year. Using the logistic population growth model, what is the approximate population growth rate for a population of 420 deer?
148 deer per year
218 deer per year
307 deer per year
474 deer per year
Answer:
Option B, 218 deer per year
Explanation:
As we know
[tex]\frac{dP}{dt} = kP (1- \frac{P}{K})[/tex]
Where K is the carrying capacity
K is the rate constant
dP/dt is the change in population per unit time and
P is the population
Substituting the given values we get
[tex]\frac{dP}{dt} = k * 420 * (1-\frac{420}{875})\\= 1 *420 * (1-0.48)\\= 218[/tex]
Option B is correct
Answer:
218!
Explanation:
took the flvs test and got it correct
Psychologists use which of the following strategies to determine a study's replicability?
a. Internal validity
b. Repeating the study
c. Study reframing
d. Generalizing
Psychologists use the strategy of repeating the study to determine a study's replicability, option (b) is correct.
Replication involves conducting the same study again, using the same methods and procedures, to see if the findings can be reproduced. This process helps psychologists to establish the reliability and generalizability of the original study's results. Replication is crucial in science as it allows researchers to assess the consistency and robustness of the findings across different samples, settings, and conditions.
If the results of a study can be consistently replicated, it increases confidence in the reliability and validity of the findings. Replication also enables researchers to identify potential factors that may influence the results, such as sample characteristics or contextual variables, and helps to refine and validate existing theories and models, option (b) is correct.
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Guys need your help!!! True or False???
If you have a reoccurring flu virus, your body’s memory B cells can help fight off the same virus.
Why is it T or F. Do not just restate statement.
Thanks!
Answer:
True, your body will develop antibodies against it
Explanation:
brainliest pls?
Pls help me and thank youuu
Answer:
I think your answer would be C... please correct me if im wrong.
If you were able to stop the process of cellular respiration after completing electron transport but prior to chemiosmosis (the movement of hydrogen ions), you would find the pH of a mitochondrion to be at its lowest:
a. in the mitochondrial matrix.
b. on the inner membrane.
c. in the intermembrane space.
d. in the cytoplasm.
e. on the outer membrane.
The pH of a mitochondrion would be lowest in the intermembrane space if you were able to interrupt the process of cellular respiration after electron transport but before chemiosmosis (the migration of hydrogen ions). Hence (c) is the correct option.
No exchange of gases would occur. Due to a shortage of oxygen, cells, tissues, and other organs will begin to perish. Within the cells and tissues, carbon dioxide will begin to build up. By pushing protons from the mitochondrial matrix into the intermembrane space as it transports electrons, the electron transport chain creates the chemiosmotic gradient.
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Explain how Anna’s diet differed on August 11 and on August 12. Which was more appropriate for a diabetic?
Anna's diet differed on August 11 and August 12. On August 11, she ate a total of 155 grams of carbohydrates while on August 12, she ate a total of 90 grams of carbohydrates.
The August 12 diet is more appropriate for a diabetic.What is Diabetes?Diabetes is a metabolic condition that occurs when the body is unable to produce or use insulin properly. It results in elevated blood sugar levels, which can lead to a variety of health issues over time, including heart disease, kidney damage, nerve damage, and vision problems.Anna's diet on August 11 and 12:August 11:On August 11, Anna ate a total of 155 grams of carbohydrates.
Breakfast included oatmeal, a banana, and an English muffin with a total of 62 grams of carbohydrates. For lunch, she had a turkey sandwich and an apple, which added up to 58 grams of carbohydrates. Dinner included grilled salmon, a baked potato, and green beans, which added up to 35 grams of carbohydrates.August 12:On August 12, Anna ate a total of 90 grams of carbohydrates. Breakfast included scrambled eggs, whole-grain toast, and an orange, totaling 24 grams of carbohydrates. She had a chicken salad for lunch, which added up to 15 grams of carbohydrates. Dinner included beef stir-fry with vegetables and brown rice, which added up to 51 grams of carbohydrates.
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Which is not a property of an acid?
A)
tastes sour
(B) has a high pH
(C)reacts with metals
D contains the element hydrogen
Which of the following would be considered a characteristic of a soil rather than a principal soil component?
a. the soil peds that give the soil its structure
b. inorganic material such as insoluble and soluble minerals
c. soil, air, and water
d. organic matter such as humus
The characteristic of a soil rather than a principal soil component is the soil peds that give the soil its structure, option (a) is correct.
Principal soil components refer to the major constituents of soil that directly contribute to its formation and properties. Soil peds, also known as aggregates, are formed by the binding together of individual soil particles.
They contribute to the soil's physical properties, such as its structure, stability, and permeability. Soil peds are formed through various processes, including weathering, biological activity, and soil management practices. While they are an important aspect of soil, they are not considered a principal soil component, option (a) is correct.
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Energy Efficiency =
Useful Energy Output/Total Energy
Input x 100 (%)
If a power plant uses 100 units of
energy to create electricity and the
output is 5 units, where does the
95% of the energy input go?
A. lost as heat
B. lost as gas
C. escapes the system as potential energy
If a power plant uses 100 units of energy to create electricity and the output is 5 units, 95% of the energy input goes as lost as heat.
Could you ever create a machine where 100% of the input energy would turn into output energy?No, a real machine can't have an efficiency of 100%. An efficiency of 100% means that there is no loss and the output energy (or work) of the machine is equal to input energy (or work). In real machines, there is always some loss of energy to overcome friction and air resistance.
How do you calculate the energy efficiency of a power plant?To express the efficiency of a generator or power plant as a percentage, divide the equivalent Btu content of a kWh of electricity (3,412 Btu) by the heat rate. For example, if the heat rate is 10,500 Btu, the efficiency is 33%. If the heat rate is 7,500 Btu, the efficiency is 45%.
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Summarize What adaptations do cephalopods have to live an active way of life?
Answer:
The answer is below
Explanation:
The adaptations that cephalopods have, to live an active way of life are numerous, some of which are:
1. Development of a SIPHON. This is a form of the adapted foot that supports survival such as swimming and directional movement.
2. A powerful and flexible arm for movement and protection
3. Using ink to form visual distractions, against predators.
Note that a good example of cephalopods are known as octopus
How did people in the North use natural resources differently than people in the South? (5 points) a They were more industrial, while Southerners were more agricultural. b They protected their natural resources better than the Southerners. c They used their own natural resources to run their factories and farms. d They were more agricultural, while Southerners were more industrial.
Answer:
i would choose A.
Explanation:
the north was definitly more industrial
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Thay protected their natural resources better than the sotherners
I need help with this ASAP please!!!
Answer:
A = water
B= Glucose
C = Oxygen(O2)
Explanation:
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Which is NOT a characteristic of unsaturated fats?
A. liquid at room temperature
B. animal fats
C. kinks in the carbon chain
D. not fully saturated with hydrogens
Answer:
C
Explanation:
Why is the sea otter's diet of seafood a problem with some of the fisherman?
Answer:
Sea otters, because of their eating habits, are considered a “keystone predator,” predators that keep the ecosystem balanced. ... When not enough otters are around to eat the sea urchins, the urchin colonies grow unchecked and “urchin barrens” increase.
Explanation:
What causes evolution to occur in organisms? Explain the process of evolution and how it is driven by various factors.
Answer:
Evolution occurs when these heritable differences become more common or rare in a population, either non-randomly through natural selection or randomly through genetic drift. This occurs because organisms with advantageous traits pass on more copies of these heritable traits to the next generation
Explanation:
If not then sorry I tried my best to help out.
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what is the role of microtubules in mitosis? select all that apply. what is the role of microtubules in mitosis?select all that apply. microtubules condense the chromosomes. microtubules replicate the chromosomes. microtubules bind to individual chromosomes. microtubules form the mitotic spindle. microtubules shorten, dividing the chromosomes.
The role of microtubules in mitosis is:
- microtubules form the mitotic spindle.
- microtubules bind to individual chromosomes.
Explanation to the above given short answers are written below,
- Microtubules form the mitotic spindle: During mitosis, microtubules organize and form a structure called the mitotic spindle.
The mitotic spindle plays a crucial role in separating the duplicated chromosomes into two daughter cells during cell division.
- Microtubules bind to individual chromosomes: Microtubules attach to specific regions on the chromosomes called kinetochores.
These kinetochore microtubules exert tension on the chromosomes and are responsible for moving the chromosomes towards the poles of the cell during mitosis.
The other options provided do not accurately describe the role of microtubules in mitosis:
- Microtubules do not condense the chromosomes. Chromosome condensation is mainly mediated by proteins called condensins.
- Microtubules do not replicate the chromosomes. Chromosome replication occurs during the S phase of the cell cycle.
- Microtubules do not shorten and divide the chromosomes. Microtubules exert forces on the chromosomes to separate them, but they do not directly divide the chromosomes.
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What is a wetland?
A]an ecosystem that is made up of salt water at least part of the year
B]an ecosystem in which plant roots are submerged during some part of the year
C]an ecosystem in which half the area is wet and the other half is dry
D]an ecosystem with running water at least part of the year
Answer:
A:)))))
Explanation:
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Match each idea about evolution to the person or group where it originated from the drop down menu
Hello. You did not present the ideas about evolution to which the question refers, which makes it impossible for your question to be answered. However, I will try to help you in the best possible way, showing you the main ideas about evolution and the people who originated them.
According to Jean-Baptiste organisms evolve as a way of seeking perfection.
According to the ancient Greeks and Romans, all living things are in a constant process of change. This change causes evolution and when a living being evolves it causes the evolution of another living being, since everyone is connected and related.
According to Darwin, evolution occurs over time and through an ancestor. For him All living beings have a common ancestor, which evolved over time and generated new species. Darvin also believes that any characteristic acquired by evolution could be passed on to the descendants.
According to Malthus, living beings generate a number of descendants disproportionate to the resources necessary for their survival and this causes evolution.
Heat is necessary for all of the following processes except for:
A.Condensation
B.Evaporation
C.Melting
D.Boiling
Heat is necessary for evaporation, melting and boiling. The correct option is A.
What is condensation?Condensation is the transformation of water vapor into liquid. It is the inverse of evaporation, in which water turns into a vapor.
Condensation occurs in one of two ways: the air is either cooled to its dew point or becomes really filled with water vapor that it cannot retain any more water.
Condensation happens when warm air collides with cold surfaces or when your environment is overly humid.
When this moist warm air comes into contact with a cold surface, it quickly cools and releases the water, which condenses into liquid droplets on the cold surface.
In the remaining processes, i.e., evaporation, melting and boiling it is required to heat them up.
Thus, the correct option is A.
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Many closely related species of ducks have different courtship dances that are performed to solidify a pair-bond. If you were to cross individuals from each of these species what would you expect to see in the hybrid offspring if behaviors related to pair-bond formation were completely due to genetics?
Answer:
I would expect to see a new phenotype in which the new duck hybrid species would express a new mixed courtship dance with the behaviors of both parentals.
Explanation:
The cross between both parentals, each from different species, might produce a new phenotype that exhibits both parental dances. The new dance might be considered a hybrid of the parental dances.
Genetically speaking, we can think that there is a gene codifying for the courtship behavior in one species and another gene expressing a different courtship behavior in the other species. This cross´ product would be a hybrid species that exhibits a part of both parentals´ behaviors.
Identical twins, who have inherited a gene associated with obesity, are adopted by different families. One is growing up in a very health-conscious family, while the other is growing up in a family that eats a lot of fast food and never exercises. Which statement describes their likely weights upon reaching adulthood?
A.
They will both be overweight because they both have the gene associated with obesity.
B.
They will both be of average weight because their genes will mutate as they grow and develop.
C.
The weight of the twins is difficult to predict because both genes and environmental factors affect weight.
D.
One twin will be overweight and the other will be of average weight, because they were raised in different environments.
Answer:
c
Explanation:
this statement is true and no matter what the genes say environmental parts play a huge role
Should humans continue to use uranium yes or no and the reason
Answer:
Yes
Explanation:
Because uranium decays by alpha particles, external exposure to uranium is not as dangerous as exposure to other radioactive elements because the skin will block the alpha particles. Ingestion of high concentrations of uranium, however, can cause severe health effects, such as cancer of the bone or liver.
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What body system is the human heart part of?
Answer:
the answer will have to be The heart is apart of the circulatory system.
Explanation:
Are these ramen noodles expired?
Answer:
it depends on the numbers on the bottom they foretell the nono time to eat
Answer:
they look fine, just check the expiration date and make sure the package wasn't already opened.
Explanation:
they look good to me though, so I'd say eat up!
how does oxygen and carbon dioxide levels change over time?
Answer:
In the capillaries, oxygen flows rapidly through the blood through this air-blood barrier. Closely, carbon dioxide flows into the alveoli from the blood and is then exhaled.
Explanation:
Commonly found fossils are of the ______ type.
A. print
B. petrified
C. carbonized
Please help, ASAP.
Answer:
C. carbonized
Explanation:
The mode of fossilization of these inclusions varies, but carbonization is most common.
I was thinking B but I need another opinion.
NO LINKS AND IF YOU DO YOU WILL GET REPORTED
Answer:
YES YOU WERE RIGHT B MAKES SENSE
Explanation:
Answer:
B) 1 and 2
Explanation:
Both 1 and 2 are true in the actual Solar System. Number 3 is incorrect because Earth is only tilted at a 23.5 degree angle. Number 4 would make a oval or other shaped orbit, so it's incorrect.
Hope it helps!!!