Answer: a. Mitochondria and chloroplasts contain their own set of DNA.
Explanation:
The theory of endosymbiosis suggests that origin of mitochondria and chloroplast in eukaryotes were the individual primitive prokaryotic organisms. The mitochondrial and chloroplast DNA and protein synthesis was found similar to the bacteria. This provided the evidence for endosymbiotic hypothesis. It was determined that chloroplast as well as mitochondria divide independently in the cell where they live just like individual bacterial cell.
Which of these is [not] a property of a mineral
Magnetism
Color
Reflection
Cleavage
I put 99 points on this and don't disappoint meor
your ☺️to my
Which structure produces a substance that aids in the mechanical breakdown of fats
Chemical vacuoles is a structure produces a substance that aids in the mechanical breakdown of fats.
What is Vacuoles?Animal, plant, bacterial, protist, and fungal cells all include vacuoles. It has the size of a giant sac and is one of the biggest organelles found in cells.
Vacuoles are bordered by a thin membrane and filled with fluid and any molecules they take in. This is their basic structure. Because both are membrane-bound sacs, they resemble another organelle called vesicles, however vacuoles are substantially bigger than vesicles and are created when numerous vesicles fuse together.
The primary purpose of vacuoles is to store various materials and molecules; in a sense, they serve as the cell's storage facility.
Therefore, Chemical vacuoles is a structure produces a substance that aids in the mechanical breakdown of fats.
To learn more about vacuoles, refer to the link:
https://brainly.com/question/1675400
#SPJ5
how do the nutrients that enter our cells compare with the food we eat
what is the difference between an embryophyte and a spermatophyte?
Answer:
Embryophyte also known as land plants are the plants, in which zygote develops into an embryo and includes includes gymnosperms, angiosperms, bryophytes and pteridophytes.
Spermatophyte also known as phanerogams are the plants that forms seeds (sperma) rather than spores like gymnosperms (naked seeded plants) and angiosperms (seeds enclosed in ovary wall).
Your body uses the nutrients from Fiber to keep your digestive track healthy.
True
or
False
Many different parts of the brain work together to encode, store, and retrieve information as needed. The diagram below indicates three parts of the human brain that are involved in information storage.Which of these terms best describes the process by which the brain stores information that can be retrieved at a later time?
Answer:
memory
Explanation: got it right for the study island
Which best shows a harmful effect of a mutation?
Answer:
The correct answer will be option in which mutation is observed in the legs of the frog.
Explanation:
The mutation is a change which takes place in the sequence of DNA. When it takes place in the segment of DNA which can code the trait, it is expressed in the trait.
These mutation can prove beneficial to the organisms but can also become lethal to the organisms like the one with a mutation in legs of the frog as the legs of the frog helps provide the ability to move as well to swim in the water. if the legs will show a trait of mutation, the frog will not be able to swim and move properly.
Thus, option in which mutation is observed in the legs of the frog is the correct answer.
Fill in the blank help please
HEEEEEEEEEEEEEEEEEEEEEEEEEELP MEEEEEEEEEEE PLSSSSSSSSSSSSSSSS FREEEEEEEEEEEE COOOOOOOOOOOOOOKIEEEEEEEEEEEEEEEEE
Evaluate and discuss the importance of maintaining biodiversity for future medical needs
Convergent evolution suggests different organisms evolved _____ due to _____.
similarly; different environments
differently; different environments
differently; similar environments
similarly; similar environments
The answer is similarly; similar environments.
how do energy conversions make a car go down the street
mitosis is an important process for a multicellular organisms-
A-metabolism
B-defense
C-growth
D-adaptation
How do reflexes protect the body from injury
Suppose you have two minerals. One mineral fractures into rough pieces, and a second mineral breaks into pieces with smooth surfaces.
What does this indicate?
A.
The second mineral is older than the first mineral.
B.
The second mineral is harder than the first mineral.
C.
The two minerals have a different arrangement of their atoms.
D.
Only the second mineral has crystalline structure
Please help me
Final answer:
The fact that one mineral fractures into rough pieces while another breaks into pieces with smooth surfaces indicates that the two minerals have different arrangements of their atoms.
Explanation:
When it comes to the properties of minerals, how they break or fracture can tell us a lot about their internal structure. If one mineral fractures into rough pieces and another breaks into pieces with smooth surfaces, this indicates that the two minerals have a different arrangement of their atoms (Option C).
This is because the atomic structure determines the strength and orientation of the bonds within the mineral, which in turn influences how it breaks. The atomic arrangement can cause certain minerals to have flat surfaces known as cleavage planes or irregular, jagged surfaces when they fracture. The appearance of the fracture is influenced by the internal crystalline structure of the mineral, but not necessarily its age (Option A), hardness (Option B), or whether it has a crystalline structure (Option D), as all minerals are crystalline to some extent.
what is the length of 63 perimeter width 1
Your teacher has asked you to complete labeling this plant cell. You know that plant cells have a nucleus. What two organelles should be labeled that WOULD NOT be found in an animal cell?
(30 Points for answering)
A) cytoplasm and cell wall
B) membrane and chloroplasts
C) cell wall and chloroplasts
D) cytoplasm and chloroplasts
Answer:
c
Explanation:
watch my show
Cystic fibrosis is an inherited genetic disorder caused by two copies of a defective recessive gene that causes
A) senility at around age fifty and slow nervous system damage.
B) the buildup of fluid in the lungs, and complications from pneumonia.
C) a form of mental impairment, along with heart defects, and a webbed neck.
D) the inability of the blood to clot properly, resulting in organ damage and easy bruising.
Which of the following statements is true?
The human eye can perceive a wide range of electromagnetic radiation wavelengths.
In bright light, the iris of an eye will dilate the pupil.
Light is created by vibrations in electric and magnetic fields.
All of the above.
Answer:
C
Explanation:
The answer is Light is created by vibrations in electric and magnetic fields. I chose this & got correct on test
Explain why volcanic soil (andisol) is fertile.
Volcanic soil is fertile because it contains high amounts of minerals and nutrients. It is fertile because it is fresh and new.
Volcanic soil is fertile because it contains high amounts of minerals and nutrients. It is fertile because it is fresh and new.
What is volcanic soil?When volcanoes are active, soil that has formed there frequently has unique chemical characteristics. Due to the presence of volcanic ash, they frequently contain high levels of nutrients and have good water retention.
Depending on the type of volcano from which they are derived, these soils are known as andisols and are frequently quite young and acidic. If there isn't another eruption, volcanic soils near the equator can weather quite well and lose part of their nutrients. These substances can have extremely dark hues.
Volcanic eruptions are frequently dramatic occurrences that draw attention, occasionally on a worldwide scale. We are frequently drawn to volcanic landscapes out of curiosity and wonder to witness the amazing power of nature firsthand.
Therefore, Volcanic soil is fertile because it contains high amounts of minerals and nutrients. It is fertile because it is fresh and new.
To learn more about volcanic soil, refer to the link:
https://brainly.com/question/2849291
#SPJ6
plzzz help
Multicellular organisms have five levels of organization ranging from simplest to most complex. The simplest level is the cellular level. This is an image of one type of cell found in your body: a cheek cell. You are the most complex level: you are an organism. List the five levels of the organization, from simplest to most complex. Describe each level of one or two sentences. Give an example at each level.
Explanation:
Each individual is a member of a population. Each population is made up of a group of individuals of the same species that occupy the same environment and interact with each other. Many different populations together make up a community, and many different communities interact with one another in an ecosystem.
which best describes what a refrigeration system would do
A refrigerator works by absorbing heat from its interior and expelling it outside, using a coolant that vaporizes to capture heat and then is compressed to release it. This process requires work, electrical energy, and follows the conservation of energy principle, where the coefficient of performance measures efficiency.
Explanation:A refrigeration system, such as that found in a household refrigerator or freezer, conducts heat transfer by absorbing heat from within its insulated compartment (in this context, referred to as the cold reservoir) and expelling it to the surrounding environment (the hot reservoir). The system operates by using a coolant, which has a boiling point lower than the freezing point of water. This coolant captures heat from the refrigerator's interior during the evaporation process causing it to vaporize. Afterward, it is compressed—which requires work (W)—and transferred through the condenser, where it releases the absorbed heat to the outside air.
The conservation of energy principle is respected throughout this process, as the work done on the coolant (which we observe as electricity usage on our bill) facilitates the transfer of thermal energy against the natural direction of flow (from colder to warmer). The efficiency or coefficient of performance (COP or KR) of a refrigerator evaluates the ratio of the heat removed from the inside to the work input required to accomplish this task.
Overall, for the duration in which the refrigerator door remains closed, the refrigeration system continuously cycles the coolant to maintain a stable low temperature, thus keeping the food within preserved. The transfer and transformation of energy in this form are an intentional exception to the rule of spontaneous heat flow from hotter to cooler areas, being facilitated by external work input.
Compare and contrast cell communication by nerve signal and communication across plasmodesmata.
PLEASE HELP!!!!! 30 points
Which process of heat transfer makes milk boil?
Condensation
Convection
Evaporation
Radiation
Several instances of irregular digestion are listed in the table below. Condition Description Symptoms Heartburn Inability of the muscles at the end of the esophagus to close Burning sensation in throat Peptic ulcers An open wound in the lining of the stomach Sharp pain between chest and belly button, nausea Constipation Condition where a person has infrequent and uncomfortable bowel movements Infrequent bowel movements, nausea Lactose intolerance Inability to digest or break down the lactose in milk products Diarrhea, gas, nausea, and bloating Maria loves ice cream, but lately she has become aware that she feels nauseated after eating it. From which condition is Maria to suffering?
Answer:
c. lactose intolerance on edg.
Based on the given information, Maria is likely suffering from lactose intolerance.
What is lactose intolerance?Lactose intolerance is a digestive disorder characterized by the body's inability to fully digest lactose, a sugar found in milk and dairy products. It occurs when the small intestine doesn't produce enough lactase, an enzyme responsible for breaking down lactose into simpler forms that can be absorbed into the bloodstream.
When a person with lactose intolerance consumes lactose-containing foods or beverages, they may experience symptoms such as bloating, abdominal pain, diarrhea, and gas. These symptoms typically occur within a few hours after consuming lactose. The severity of symptoms can vary among individuals, with some being more sensitive to lactose than others.
Lactose intolerance is different from a milk allergy, which is an immune system response to proteins found in milk rather than the lactose sugar. It is important to note that lactose intolerance is a common condition and is not life-threatening. Many people manage their symptoms by reducing or avoiding lactose-containing products or by taking lactase supplements before consuming such products.
Diagnosis of lactose intolerance is typically done through a combination of medical history, physical examination, and lactose intolerance tests. If someone suspects they have lactose intolerance, it is advisable to consult a healthcare professional for an accurate diagnosis and guidance on managing the condition.
Learn more about lactose intolerance, here:
https://brainly.com/question/11054515
#SPJ3
how can you use food labels and DRIs to make sure you get enough iron
Use food labels to check the percent daily values (% DV) for iron and choose foods that are high in iron or iron-fortified. The DRIs provide age- and gender-specific recommendations for daily iron intake. Consuming vitamin C with iron-rich foods increases absorption.
Explanation:The student has asked how to use food labels and Dietary Reference Intakes (DRIs) to ensure adequate iron intake. Boys and girls aged 9 to 13 require 9 mg of iron daily, girls 14-18 require 15 mg, boys 14-18 require 11 mg, and pregnant women need 27 mg. Food labels and the percent daily values (% DV) help identify the amount of iron in foods. Iron-fortified foods like breakfast cereals contain added iron, often as 'reduced iron' or fine metallic iron powder, which is converted to Fe²+ in the body. Consuming vitamin C alongside iron-rich foods enhances iron absorption. It's important to note that while some protein sources are high in iron, they can also be high in fat.
Which of the following describes a role that ribosomes assume in the production of proteins?
A)
Transports nutrients from inside the cell to the cell membrane to be used in making proteins.
B)
Produces energy for the cell to use during protein synthesis.
C)
Translates mRNA into a specific amino acid chain.
D)
Rids the cell of leftover amino acids once the proteins have been synthesized.
Answer:
C)
Translates mRNA into a specific amino acid chain.
Explanation:
lactase is an enzyme found in the digestive tract that digests lactose a common carbohydate found in milk.Would the genes for lactase be turned on or off after eating cheese and why?
What are the main structures of reproduction in angiosperms ?
15 points. Which of the following best summarizes the process of fertilization of a gymnosperm?
A) Male and female gametes are produced in a single cone, with pollen on the outside and the egg within the ovule beneath the scales. Pollen travels to the ovule, meets the egg, and fertilization can take place.
B) Cones are released from the tree and carried by wind to a moist environment where sperm can easily travel to the egg, and fertilization can take place.
C) Pollen travels from a male cone, the pollen becomes enclosed in the ovule that contains the egg within the female cone, the scale encloses the entire structure, and fertilization takes place.
D) Scales from male cones are carried to female cones, pollen is transferred to the female egg within the ovule, and fertilization takes place.
The correct answer is C).
In this process, pollen tube delivers pollen from the male cone to the female gametophyte, where fertilization occurs, leading to the formation of a zygote and eventually an embryo enclosed in a seed coat.