Which statement is true about eukaryotic cells?
A). Eukaryotic cells have membrane-bound organelles
B) The DNA of eukaryotic cells floats in the cytoplasm
C) Bacteria are an example of eukaryotic organisms
D) All eukaryotic cells have a cell wall
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Answer:
C is the correct option.
Related Questions
FILL IN THE BLANK. ________, plants and animals are responding to changes in concentrations of carbon dioxide, local temperatures, and precipitation patterns.
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In both __plants and animals__, the organisms are responding to changes in concentrations of carbon dioxide, local temperatures, and precipitation patterns.
Plants and animals are two broad categories of organisms that inhabit various ecosystems on Earth. Both plants and animals exhibit responses to environmental changes, including shifts in carbon dioxide concentrations, local temperatures, and precipitation patterns.
Plants, through a process called photosynthesis, utilize carbon dioxide as a raw material to produce glucose and oxygen. Changes in carbon dioxide concentrations can affect the rate of photosynthesis, leading to adjustments in plant growth, development, and productivity. Additionally, plants have mechanisms to regulate their stomatal openings, which can respond to changes in carbon dioxide levels to optimize water use efficiency.
Similarly, animals, including both vertebrates and invertebrates, can respond to changes in environmental conditions such as temperature and precipitation patterns. Many animals have physiological and behavioral adaptations that allow them to cope with temperature variations. For example, animals may adjust their metabolic rates, alter their distribution or migration patterns, or modify their behaviors to seek out suitable microclimates or habitats. Changes in precipitation patterns can impact animal behavior, reproduction, and resource availability, influencing their survival and population dynamics.
Overall, both plants and animals play crucial roles in responding to changes in carbon dioxide concentrations, local temperatures, and precipitation patterns, as they strive to adapt and survive in their respective environments.
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How does having 100 trillion microorganisms on and in the human body keep a person healthy?
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Answer:
Our gut harbours a complex community of over 100 trillion microbial cells which influence human physiology, metabolism, nutrition and immune function while disruption to the gut microbiota has been linked with gastrointestinal conditions such as inflammatory bowel disease and obesity.
in an experiment, the *BLANK* is the section that tells us the steps we need to take to run the experiment. A procedure. B Materials. C. Hypothesis. D Data
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Explain these terms as related to fossils.
Inference
reconstruction
Answers
Explanation:
Resconstruction: a detailed drawing or reconstruction is made of the skeleton.
Inference evidance or reasoning for a fossil. Pls Give me Brainlyest
Answer:It is the putting together of fossils
Explanation:
Examine the image of the relatedness of vertebrates represented in this phylogenetic tree. Select all the statements that are supported by this tree. Hint Regular Calc Scientific Calc A) Gray whales are the common ancestor of the Blue and Humpback whales. B) Blue and humpback whales diverged more recently than either did from the gray whale. C) The Bryde's whale shares a more recent common ancestor with the Sei whale than with the Fin whale. D) The blue and the Bryde's whale have more traits in common with each other than with any other two species, E) Southern minke whales and Northern mine whales have more traits in common with each other than with any other species
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The Sei whale and the Bryde's whale have a more recent common ancestor than the fin whale.
The correct option is C.
What can phylogenetic trees tell us?A phylogenetic relation is a diagram that shows how different organisms have evolved together. Phylogenetic trees are theories as opposed to confirmed facts. The branching pattern of a phylogenetic tree shows how so many species or other groupings evolved from a variety of shared ancestors.
Why do scientists utilize the phylogenetic tree?A reliable way for figuring out how current species have developed is phylogenetics. By examining phylogenetic trees, scientists can explain the similarities and differences between species and discover more about how species have evolved.
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The _____refers to the frontal plane angle created between the femoral neck and the shaft of the femur.
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Answer: angle of inclination
Explanation:
what are faults ? where are faults found?
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Answer:
Well.
Explanation:
Faults are a weakness in the rock strata that can shift and create an earthquake.
Faults are mainly found underground in rock.
An example of a fault would be the San Andreas fault.
Why did Darwin see savage competition as a creative process?
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Answer: According to Darwin theory of evolution the struggle for existence is considered as major part for competition among living things.
Explanation:
Coexisting species that belong to the same genera compete for same kind of resources for their survival. Some phenotypic variations gives an survival advantage over others. The superior ones dominate the inferior ones and compete for resources. The one who receives the resources like mates, food, shelter, and others the chances of survival also increases considerably.
In humans, the ability to taste the bitter chemical PTC is controlled by a single gene. The tasting gene (T) is dominant to the non-tasting gene (t).
Which of the following genotypes is correctly labeled?
Choose 1 answer:
A
tT - heterozygous recessive
B
Tt - hom0zygous recessive
C
TT - hom0zygous dominant
D
tt - heterozygous dominant
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Hope this helped! :)
Answer:
CORRECT (SELECTED)
TT - homozygous dominant
Explanation: Individuals with two tasting alleles are homozygous dominant.
What are the 3 types of nystagmus?
Answers
The three types of nystagmus are:
1) Congenital nystagmus, which is present at birth or develops within the first few months of life;
2) Acquired nystagmus, which develops later in life due to an underlying condition or injury; and
3) Physiological nystagmus, which is a normal response to certain visuals or movement stimuli.
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how does the skin gain the sensation of touch?Clarify
Answers
Answer:
Skin has many types of receptors that help you feel the things that you touch. In your body, a receptor is a structure that can get information from the environment. The information is then changed into a signal that can be understood by the nervous system.
Explanation:
Hope this helps! :)
Which stage of the cell cycle in Figure 1 takes the most time?
Tick one box.
Cell growth
Copying of chromosomes
Mitosis
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Answer:
cell growth or interphase
Explanation:
write 10 energy converters in our daily life along with their energy chains
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Answer:
What are some examples of energy transformation?
The Sun transforms nuclear energy into heat and light energy.Our bodies convert chemical energy in our food into mechanical energy for us to move.An electric fan transforms electrical energy into kinetic energy.Explanation:
Hope it is helpful....
Help with this please
Answers
Answer:
ummmm are we meant to draw a diagram orrr....
In a botany experiment, a light source is placed below a plant. Over a six-week period, the plant's substantive growth is observed and recorded. If the plant is healthy, what observations might be recorded?
Answers
Answer: if the plant is healthy you may see the stem get longer , leaves grow out ,or the plant will start to bud.
Explanation:
It depends on what kind of plant you are working with but most likely the healthy plant will also have a regular color, leaves, consistent growth and possibly budding
helpppppppppppppppppp
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Using radio telescopes, astronomers have found evidence the new matter is forming in the universe, which is what the big bang theory predicted.
Your answer is B
Well since the big bang theory already supports the idea of new matter forming, we are using new technology to prove an existing theory
In this case, we are using new technology to prove existing theories. NOT making new ones, or modifying them.
What is the concentration of hydroxide ions in a solution of pH5
Answers
In a solution of pH5, the concentration of hydroxide ions will be \(10^{5}\) M.
How is the concentration of hydroxide in a solution calculated?Chemical reactions in a medium are influenced by the concentrations of protons in the medium. The hydrogen potential or pH of an aqueous solution tells us about the molar concentration of dissociated H+ by applying the negative logarithm.
Knowing then the pH of a solution we can calculate the hydrogen concentration of the given solution as follows:
[H+] = \(10^{pH}\)
Also inversely we can know the pH knowing the concentration of hydrogen in a solution:
pH = -log [H+]
Therefore, we can confirm that in a solution of pH5, the concentration of hydroxide ions will be \(10^{5}\) M.
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I need help pleaseeeeeeee
Answers
Answer:
1. co2 and sunlight
2. glucose and oxygen
3. palisade
4.site
5. xylem and phlegm
6. stomata
7. guard cells
Cystitis is most often caused by Group of answer choices Escherichia coli. Leptospira interrogans. Candida albicans. Neisseria gonorrhoeae. Pseudomonas aeruginosa.
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Cystitis is most often caused by Escherichia coli (E. coli) bacteria.
E. coli is a type of bacteria that is commonly found in the gastrointestinal tract and is responsible for many cases of urinary tract infections (UTIs), including cystitis.
Other bacteria, such as Staphylococcus saprophyticus, Klebsiella pneumoniae, and Proteus mirabilis, can also cause cystitis.
However, E. coli is the most common cause, accounting for up to 90% of cases.
Other microorganisms, such as viruses or fungi, can also cause cystitis, but this is less common.
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8. Why does moving up in the atmosphere typically cause air to lose its water vapor?
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10+ points ! :) Identify and label the following terms on the models: compound, element, and chemical formula.
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Answer:
Compounds => carbon dioxide, water
Element => Carbon (C), Oxygen (H), and Hydrogen (H)
Chemical formula: \( CO_2 \), \( H_2O \)
Explanation:
Compound is the combination of two or more atoms of different elements.
The compounds in the models are: carbon dioxide and water
The Elements in the models combine to form the compounds:
They are:
Carbon (C), Oxygen (H), and Hydrogen (H).
Chemical formula that shows the proportion in which the atoms of each element are combined to form the compounds in the models are:
\( CO_2 \) for carbon dioxide, and
\( H_2O \) for water.
how do small business firms add to a country economy
Answers
Answer:
Small businesses contribute to local economies by bringing growth and innovation to the community in which the business is established. Small businesses also help stimulate economic growth by providing employment opportunities to people who may not be employable by larger corporations.
Explanation:
what process causes stem cells to become immune system cells,then some immune system cells to become antibodies?
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MULTHI.E CHOICI. Choose the one alternative that best completes the statenaent or answers the questien. 1) Difficulty in swallowing may be a sign of damage to which cranial nerve(v)? 1) A) vagus B) glossopharyngeal and vagus C) facial D) hypoglossal E) glossopharyngeal 2) After suffering a blow to the back of the head, Phill loses his vision. The blow probably caused 2) damage to the A) occipital lobe. B) postcentral gyrus. C) limbic system. D) temporal lobe. E) frontal lobe. 3) Which of the following is a sympathetic neurotransmitter used for vasodilation? 3) A) norepinephrine B) dopamine C) nitric oxide D) serotonin E) acetylcholine 4) Which of the following associations is incorrect? 4) A) 5 sacral spinal nerves B) 1 coccygeal spinal nerve C) 8 cervical spinal nerves D) 5 lumbar spinal nerves E) 11 thoracic spinal nerves 5) The tough, fibrous, outermost covering of the spinal cord is the 5) A) dura mater. B) pia mater. C) coccygeal ligament. D) arachnoid mater. E) periosteum. 6) The nervous system stimulates the arrector pili muscles and gives you "goosebumps." A) somatic B) sympathetic C) parasympathetic D) afferent E) dorsal
Answers
The multiple-choice questions cover topics related to cranial nerves, brain regions, neurotransmitters, spinal nerves, and the autonomic nervous system.
The given questions are multiple-choice questions that cover various aspects of the nervous system. The first question addresses difficulty in swallowing, which could indicate damage to the vagus nerve (cranial nerve X). The second question relates to vision loss after a head blow, suggesting possible damage to the occipital lobe.
The third question asks about the sympathetic neurotransmitter used for vasodilation, with the correct answer being nitric oxide. The fourth question tests knowledge of the number of spinal nerves associated with each region, and the fifth question focuses on the outer covering of the spinal cord, which is the dura mater.
The final question asks about the stimulation of arrector pili muscles, which is accomplished by the sympathetic nervous system.
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the potato is a _________ . a. starch b. vegetable c. starch and a vegetable d. neither starch nor vegetable
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The potato is a starch and a vegetable. The correct answer is option c.
The potato is a tuberous crop that falls under the category of vegetables. It is a root vegetable, and its primary function is to store energy for the plant in the form of carbohydrates. One of the primary carbohydrates found in potatoes is starch, making them a significant source of starch as well.
In terms of nutritional value, potatoes are an excellent source of essential vitamins and minerals, such as Vitamin C, potassium, and B vitamins. Additionally, potatoes contain fiber, which contributes to overall digestive health.
In summary, the potato can be classified as both a vegetable and a starch. This is because it is a root vegetable that serves as an important source of nutrients while also containing high levels of starch as its primary carbohydrate.
Therefore, the correct option is c. starch and a vegetable.
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assume that heterozygotes are as fit as homozygous blue lupins and that seeds from both pink and blue lupins all suffer about the same mortality rate after germinating. calculate the relative fitness (w) of each genotype.
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The relative fitness (w) of each genotype is (1 - x), where x represents the mortality rate after germination.
To calculate the relative fitness (w) of each genotype, we need to consider the assumption that heterozygotes are as fit as homozygous blue lupins and that seeds from both pink and blue lupins suffer the same mortality rate after germinating.
1. Let's start by assigning a value of 1 to the fitness of homozygous blue lupins (BB).
2. Since heterozygotes (Bb) are assumed to be as fit as homozygous blue lupins, their fitness will also be 1.
3. Now, let's calculate the relative fitness of the pink lupins (bb) using the assumption that they suffer the same mortality rate as the blue lupins.
4. If blue lupins have a mortality rate of x, then the survival rate would be (1 - x). Since pink lupins are assumed to have the same mortality rate, their survival rate would also be (1 - x).
5. The relative fitness (w) of each genotype can be calculated by multiplying the survival rate with the fitness value assigned to each genotype.
- For homozygous blue lupins (BB): w = 1 * (1 - x)
= (1 - x)
- For heterozygotes (Bb): w = 1 * (1 - x)
= (1 - x)
- For pink lupins (bb): w = 1 * (1 - x)
= (1 - x)
In conclusion, the relative fitness (w) of each genotype is (1 - x), where x represents the mortality rate after germination.
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Fmri scans have allowed us to make great advances in our understand of the roles of different regions of the brain. Suggest why this may be and give some examples of areas of research which you think might benefit from this study method
Answers
Answer:
FMRI helps to measure and map the brains activities.
Explanation:
FMRI refers to Functional Magnetic Resonance Imaging. It helps to measure and map the brain's activity.
FMRI scan works by looking at the blood flow in the brain to detect areas of activity. Glucose is the main source of energy in the brain,but not stored in the brain. So when parts of the brain need energy o perform action, more blood flow in to transport more glucose.
FMRI scan helps doctors to map out the brain before surgery and provides more information about individual brain to prevent serious injury before the surgery.
It also helps doctors monitor a progressive condition like dementia to study how the disease progresses.
gizmo photosynthesis need help with question 3 i looked up answer for it but there isn't or I have to pay for it
Answers
Answer:
answer no. 3
A limiting factor is a variable of a system that causes a noticeable change in output or another measure of a type of system. The limiting factor is in a pyramid shape of organisms going up from the producers to consumers and so on
Explanation:
1.Observe: SetTemperatureto 24°C,Light intensityto 50%, andCO2levelto 200 ppm.A.Move theTemperatureslider up and down. Were you able to increase oxygenproduction?a.No, I was not able to because oxygen production cannot increase more than24C.(Return the slider to 24°C when finished.)B.Move theLight intensityslider back and forth. Were you able to increase oxygenproduction?a.No, I was not able to increase oxygen production because it remained thesame from 27% to 100%.C.Move theCO2levelslider back and forth. Were you able to increase oxygenproduction?a.Yes, I was able to increase oxygen production because with a higher CO2level the production increased.(Return the slider to 200 ppm when finished.)2.Analyze: In this situation, what was the limiting factor? How do you know?a.The limiting factor was CO2 because when it was decreased or increased, itincreased oxygen production.3.Challenge: In each of the situations below, use the Gizmo to find the limiting factor.TemperatureLight intensityCO2levelLimiting factor25°C60%700 ppmLight intensity
15°C20%200 ppmTemperature30°C50%400 ppmTemperature4.
Enzymes are a special type of protein that speeds up biological reactions. How do they accomplish this task?.
Answers
Enzymes are a special type of protein that speeds up biological reactions. They accomplish this task as they
lower the activation energy of reactions.
what are enzymes?
They can be defined as biological polymers that catalyze biochemical reactions
The majority of enzymes are proteins with catalytic capabilities crucial to perform the different processes.Metabolic processes and other chemical reactions in cell are carried out by a set of enzymes that are necessary to sustain life.What is activation energy?
Activation energy is defined as minimum amount of extra energy required by a reacting molecule to get converted into product
The process of speeding up a reaction by reducing its activation energy is known as catalysis and the factor that's added to lower activation energy is called catalyst. The lower the activation energy for a reaction, faster the rate. Thus enzymes speed up the reactions by lowering activation energy.learn more about enzymes at - Brainly.com https://brainly.com/question/14577353
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Help olds i this question
Answers
Answer:
third one
Explanation: