Answer:
true
Explanation:
In plants, xylem cells, root hair cells, and phloem cells are unspecialized cells. The statement is true.
what are roles of xylem and phloem ?Plants have different tissues to transport water, nutrients and minerals. Xylem involve in the transportation of water and mineral salts from the roots up to different parts of the plant, where as phloem transports sucrose and amino acids.
Xylem is composed of elongated dead cells, continuous vessels (tubes), xylem vessel contain no cytoplasm, impermeable to water, contain woody material called lignin.
Phloem composed of living cells, cytoplasm, transports sucrose and amino acids up and down the plant by a process called translocation.
To learn more about xylem and phloem, refer to the link:
https://brainly.com/question/26320728
#SPJ5
Blood must be maintained at a fairly constant pH between 7.35 - 7.45. One of the principal buffers responsible for doing this consists of carbonic acid in equilibrium with bicarbonate ions. If you breathe too deeply or rapidly, a condition known as hyperventilation may occur in which some muscles are temporarily paralyzed because the pH of the blood becomes too high.
Explain why the pH changes in this way and why the condition can be corrected by breathing in a paper bag.
Answer:
The most important way that the pH of the blood is kept relatively constant is by buffers dissolved in the blood. Other organs help enhance the homeostatic function of the buffers. The kidneys help remove excess chemicals from the blood, as discussed in the Kidney Dialysis tutorial.
Explanation:
hope it helps you
What is the name of a species that is highly connected to the entire food web and whose loss may result in ecosystem collapse
Which theory holds that the pitch we hear is determined by the particular location on the cochlea where the hair cells vibrate the most?.
The Place theory holds that the pitch we hear is determined by the particular location on the cochlea where the hair cells vibrate the most. It is a hearing theory.
What is the place theory?The place theory is a model indicating that sound perception depends on where component frequencies produce specific vibrations.
The place theory has into account the vibration in the basilar membrane of the cochlea.
This theory (place theory) can be considered the first step for the interpretation of pitch perception.
Learn more about the place theory here:
https://brainly.com/question/18438958
`What do you mean by physiological functions for plants?
Answer:
Plant physiology deals with different plant structures and their functioning. It enables analyzing processes in plants, namely – photosynthesis, mineral nutrition, respiration, transportation, and ultimately plant development and growth which are traits displayed by living entities.
Explanation:
Hope this helps! :)
Which of the following statements is true regarding how DNA determines a trait such as eye color?
A. DNA interacts with proteins in the mitochondrion to control eye color.
B. DNA codes for mRNA, which then codes for proteins that ultimately determine eye color.
C. DNA directly produces pigments from the nucleus that travel to the retina.
D. DNA codes for rRNA, which creates a ribosome.
Answer:
B
Explanation:
Genes are the messages in our DNA that define individual characteristics. So the manifestation of the product that is coded by the DNA.
Why would it be more likely for Long Island Sound to freeze, than the ocean off Rhode Island?
The water is part freshwater, instead of entirely ocean water, which makes it freeze at a higher temperature because salt makes the water more resistant to freezing.
7. Individual parts of chromosomes
that determine your traits
Genetic crossword puzzle
1. Sharks and marlin are fish, but dolphins are not. A. simple sentence B. compound sentence C. complex sentence
Answer:
Compound sentence
Explanation:
A compound sentence is made up of two independent clauses joined by a coordinating conjunction. In this case, it would be 'but'. Some other examples would be (for, and, nor, or, yet, or so)
Sharks and marlin are fish, but dolphins are not. The type of sentence is compound sentence. Thus option B is correct.
What are types of sentences ?
There are four different types of sentences such as Declarative/Statement Sentences helps in making statements and stating basic information, an opinion can be expressed by using them and it is the most prevalent in most academic writings and verbal speech.
For Examples, Students failed to complete their essays on time, My wife loves eating cake in the morning.
Exclamatory/Exclamation Sentences used to express deep emotions or feelings, can be either disbelief or happiness and finished with an exclamation point.
For Examples, I got an A in my research paper! , That movie was exciting! Imperative/Command Sentences defines when we giving demand or instruction, can either be negative or positive depending on a message.
For Examples, Do not stop!, Never speak to me like that again. Interrogative/Question Sentences is a type of simple sentence to understand as it helps in asking a question.
For Examples What time will you finish writing your English homework?
To learn more about types of sentences, refer to the link:
https://brainly.com/question/10606352
#SPJ5
Can someone help me with biology?
Answer:
Me, check my profile I answered biology questions. byw still middle scl but trying to help
Which is an example of a Gram-negative
bacteria?
Answer:
Gram-negative bacteria are bacteria that do not retain the crystal violet stain used in the Gram staining method of bacterial differentiation. They are characterized by their cell envelopes, which are composed of a thin peptidoglycan cell wall sandwiched between an inner cytoplasmic cell membrane and a bacterial outer membrane.
Explanation:
Hope this helps! :)
Answer:
E-Coli
Explanation:
<3
Which of the following best defines sustainable fishing practices? a. Harvesting practices that maximize yields and profits. B. Harvesting practices that maximize the yield per fisherman. C. Harvesting practices that do not reduce the potential for future harvests. D. Harvesting practices that reduce the potential for future harvests. Please select the best answer from the choices provided A B C D.
Answer:
a. harvesting practice that maximize the yield per fisherman
Explanation:
hope it helps
Answer: its B
Explanation: Harvesting practices that maximize the yield per fisherman.
He is right but its B not A
Single-celled prokaryotes that are classified by their ability to survive extreme conditions are.
Details in this passage most support the idea that
A. Technology has greatly improved our lives.
B. Parent's need to limit teenager's access to technology.
C. All types of technology are health hazards.
D. Technology can have negative effects if used poorly.
Answer:
D. Technology can have negative effects if used poorly
Octopuses, mammals, and some jellyfish have eyes that contain a lens for focusing light. Eyes with a lens were not present in the common ancestor of these animals. Is an eye with a lens a synapomorphy or a homoplasy?
Answer:
Synapomorphy !!
Explanation:
An Eye with an lens is specified as a Synapomorphy .
According to the operon model, for the synthesis of an inducible enzyme to occur, the:.
The operon model explains the regulatory system of the gene expressions in the bacteria. An inducible enzyme will be synthesized if the substrate binds to the repressor. Thus, option B is correct.
What is the operon model?
An operon model is the representation of the genes that are closely related and is the regulation of the genetic mechanism in the bacteria. They consist of the structural gene, an operator, and a promoter.
The inducible enzyme in the operon model is produced if the substrate binds to the repressor. The substrate act like an inducer to promote the transcriptional process by inhibiting the activity of the repressor.
The inhibited repressor will not be able to bind the operator and hence RNA polymerase will be free to move and complete the process of transcription in bacteria and viruses.
Therefore, the substrate binds to the repressor so that an inducible enzyme is produced.
Learn more about the operon model here:
https://brainly.com/question/14531686
#SPJ2
The complete question is attached to the image below.
When comparing today's animals to the ones
from the Mesozoic era, which is true?
A. All of the animals from the Mesozoic era are extinct.
B. Most of the animals from the Mesozoic era are extinct.
C. Dinosaurs still roam the Earth.
D. All of the animals are still the same.
Answer:
A and B should be the answer if you can pick two, but B is the answer.
______ is a direct result of natural selection ?
A. Increased variation
B. More offspring
C.Adaptation
D. Increased strength
What situation can cause positive population growth?
Answer: immigration rate exceeds emigration rates.
Explanation: immigration means that people are moving into another place, and emigration means that people are leaving a place, usually a country.
hope this was helpful!
Which complex carbohydrate has 3 to 10 simple sugar units and cannot be broken down by the body's digestive enzymes
Oligosaccharides are complex carbohydrates that have 3 to 10 simple sugar units and cannot be broken down by the body's digestive enzymes. They are complex carbohydrates.
Oligosaccharides, complex carbohydrates and enzymesOligosaccharides are complex carbohydrates composed of three or more monosaccharides (e.g., glucose and fructose) or the union of two or more disaccharides (e.g., lactose).
Humans cannot digest these oligosaccharides because we don't have digestive enzymes such as ⍺-galactosidase, thereby they cannot be hydrolyzed.
Complex carbohydrates are in turn long chains (either branched or unbranched) of monosaccharides linked by glycosidic bonds.
A well-known example of complex carbohydrates (polysaccharides) is starch, which is composed of many subunits of glucose.
Enzymes that break down complex carbohydrates must have the ability to break glycosidic bonds.
Learn more about complex carbohydrates here:
https://brainly.com/question/817855
Harlequin shrimp _______. A. Control starfish populations b. Clean parasites from select fish species c. Control tubeworm populations d. Hide within coral using their special camouflage Please select the best answer from the choices provided A B C D.
Harlequin or Hymenocera picta is a shrimps species are found in the water of the Pacific and Indian oceans. They control starfish populations.
What is Harlequin shrimp?They are also called Hymenocera picta scientifically and are majorly habitats to the coral of the Pacific and the Indian oceans. They belong to the phylum Arthropoda and are invertebrates.
They are two inches in length and specifically eats starfishes. Their feeding mechanism enables the population of the starfish to be balanced as starfishes are the primary food source for them.
They get nutrition and the essential energy from eating starfishes, they eat their prey in a particular fashion like first their tubes, soft tissues followed by central disk.
Therefore, option A. they control the starfish population is correct.
Learn more about Harlequin shrimp here:
https://brainly.com/question/1267805
Answer: A
Explanation:
Tension is the major type of stress at transform plate boundaries
ASAP Not all genes come in pairs! Your blood type is determined by how many different alleles?
Two alleles determine your blood type, one which comes from mother and another from father.
Answer:
I think it is determined by the DNA and RNA found in couple's body. i.e due to interplay of chromosomes.
What is the difference between epidemic and endemic.
Answer:
Epidemic: a widespread occurrence of an infectious disease in a community at a particular time.
Endemic: (of a disease or condition) regularly found among particular people or in a certain area.
Explanation:
In the past, diabetics used horse or cow insulin
to control their glucose levels. Today, as a result
of genetic engineering, human insulin can be
synthesized by bacteria. State one advantage
for a person with diabetes to receive genetically
engineered insulin rather than insulin taken
from a horse or cow. [1]
Answer:
Genetically engineered insulin is actually human insulin and is less likely to be rejected by the person.
Explanation: Hope this helps
One advantage for a person with diabetes to receive genetically engineered insulin rather than insulin taken from a horse or cow is that human insulin produced by bacteria is less likely to cause an allergic reaction.
Why animal based insulin bad?When animal insulin was used, some people with diabetes developed an allergic response to the foreign protein, causing discomfort and making the treatment less effective. Genetically engineered human insulin produced by bacteria is identical to the insulin produced by the human body, reducing the likelihood of an allergic reaction and making the treatment more effective.
Additionally, genetically engineered insulin can be produced in larger quantities, at a lower cost, and with greater consistency than animal-derived insulin.
Learn more about insulin, here:
https://brainly.com/question/17038943
#SPJ2
PLSSS HELPPP i don’t get how to do this!!!!
Explanation:
it should be around -11.5. you read the scale at the upper meniscus, and the readings are as follows:
from down to up:
-15, -14, -13, -12, -11, -10.
According to your cladogram, which two species are more closely related: worms and
spiders or worms and ants? How do you know?
According to cladogram, two species that are more closely related are worms and ants. The correct answer is worms and ants and they both are usually found in the herbivores food.
What is the category of herbivores ?It is the category in which animals feed on plants and the food based on plants.
Most ants are not eating worms but they may eat dead worms. Ants harm on worms by attacking the worms' food and To protect worms from these types of ants by raising the level of moisture in worm farm by re-wetting system regularly.
Sometimes, ants make way to compost bins to seek vegetables and fruit scraps meant for worms. This is the only kind of harm inflicted by ants on worms.
Lear more about worms at :
https://brainly.com/question/12980616
#SPJ2
How is a plateau different from a fault-block mountain?
Answer:
A plateau forms when a flat block of rock is uplifted, and a fault-block mountain does not
Answer:
How is a plateau different from a fault-block mountain? A plateau forms when a flat block of rock is uplifted, and a fault-block mountain does not. ... A scientist discovers a rock that she determines to be a fault.
The golgi packages materials into ___ for transport or export.
Answer:
vesicles
Your welcome~
Alfred has drawn a flow chart to show a time sequence of four processes of cellular respiration. Which sequence of three labels is the best choice to finish his model?.
The sequence that is the best choice to finish the model is glycolysis >> pyruvate processing >> citric acid cycle. They are steps of cellular respiration.
What is cellular respiration?
Cellular respiration is a series of reactions by which aerobic cells produce ATP (energy) by using the energy from foods and oxygen.
Cellular respiration has three main steps: glycolysis, the citric acid cycle and oxidative phosphorylation.
Glycolysis occurs in the cytoplasm, whereas the acid citric cycle and oxidative phosphorylation occur in the mitochondria.
Learn more about cellular respiration here:
https://brainly.com/question/2809259
Which statement is correct regarding metamorphic rock formation?
Multiple choice question.
cross out
A)
The temperature inside Earth is cooler which allows metamorphic rocks to form more quickly.
cross out
B)
Small pieces of rocks are buried, squeezed, and cemented together.
cross out
C)
Weathering and erosion cause rocks to break down to form metamorphic rocks.
cross out
D)
The deeper into Earth’s crust, the higher the pressure that forms metamorphic rocks.
Answer:
D is the answer.
Explanation:
The deeper into Earth's crust, the higher the pressure that forms metamorphic rocks.