Answer:
The function of root hairs is to collect water and mineral nutrients that are present in the soil and take this solution up through the roots to the rest of the plant. As root hair cells do not carry out photosynthesis, they do not contain chloroplasts.
Explanation:
Mitochondria are missing from root hair cells.
Root hair cells are specialized plant cells found in the roots of plants. Their primary function is to absorb water and minerals from the soil. To achieve efficient absorption, root hair cells have evolved specific structural adaptations.
Root hair cells are elongated and have a large surface area due to their elongated projections called root hairs. This increased surface area enhances their ability to come into contact with the soil, maximizing water and nutrient absorption. However, due to their focus on absorption and their short lifespan, root hair cells exhibit some structural simplifications, such as the absence of certain organelles.
One notable organelle missing from root hair cells is the mitochondria. Mitochondria are the "powerhouses" of cells, responsible for generating energy in the form of ATP through cellular respiration. Since root hair cells are mainly involved in absorption rather than energy production, they have a reduced need for extensive energy generation. As a result, they don't require as many mitochondria as other cells that are highly metabolically active.
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People who have leukemia, cancer that affects white blood cells, are often given Cytarabine. This drug inhibits the synthesis of DNA. Which phase of the cell cycle is most affected by Cytarabine?
Why do scientists carry out experiments?
A.
Because scientific knowledge is based on observations

B.
Because scientific knowledge is full of untested theories

C.
Because scientists like to control variables

D.
Because scientists like to work in labs
Answer:
A
Explanation:
the scientist always makes a hypothesis
Describe the role of (A) bacteria fixing nitrogen as they live symbiotically with some plant species, (B) nitrifying bacteria, and (C) denitrifying bacteria in the nitrogen cycle.
I think It is A what is the question?
Explanation:
First to answer gets brainliest!!!!!
For this scenario, determine if it is a Harmful, Neutral or beneficial mutation.
NO LINKS OR BAD ANSWERS!!!!!
Answer :Neutral
Explanation: Ability keeps them from growing over 4 feet. but does prevent Alzheimer's,diabetes,and cancer
The fact that choanoflagellates and collar cells of sponges resemble each other supports the inference that ________. Group of answer choices choanoflagellates are animals choanoflagellates are more closely related to sponges than they are to protists choanoflagellates and sponges evolved similar cell structures through convergent evolution choanoflagellates and sponges are sister groups
Answer:
choanoflagellates and sponges are sister groups
Explanation:
The choanoflagellates are small unicellular organisms belonging to the Protista kingdom. These microorganisms are collared flagellates morphologically similar to the choanocyte cells of animal sponges, which have a central flagellum surrounded by a collar of microvilli. In consequence, it has been suggested that choanoflagellates may represent the closest living relatives of primitive metazoans (i.e., they are sister groups to sponges). This hypothesis has recently been supported by both molecular phylogenetic and comparative genomic analyses.
Earth science question. Please help
Answer:
answer choice 4, more rain and a steeper slope cause it to flow faster
Explanation:
How can the appearance of white baby rabbits be explained when the mother has white fur, and the father has black fur?
Explanation:
because the baby rabbit took after its mother and the
Which of the following is a large artery that pushes oxygenated blood away from the heart to the rest of the
body?
O Pulmonary artery
O Superior Vena cava
Aorta
Pulmonary Vein
How are the functions of a carbohydrate and a lipid similar?
A. Both are a source of energy.
B. Both are replicated during meiosis.
C. Both lower the activation energy of reactions.
D. Both dissolve nutrients in the digestive system.
give an example of something that might stop a cell from checking things during the cell cycle
Answer:
A checkpoint is one of several points in the eukaryotic cell cycle at which the progression of a cell to the next stage in the cycle can be halted until conditions are favorable. ... The G2 checkpoint ensures all of the chromosomes have been replicated and that the replicated DNA is not damaged before cell enters mitosis.
A mutation in a tumor suppressor gene may stop a cell from checking things during the cell cycle.
Tumor suppressor genes are normally expressed genes that control the progression of a cell through the cell cycle.These genes (tumor suppressor genes) act to repair mutations that occurred during DNA replication, slow down cell division, activate programmed cell death pathways (i.e., apoptotic pathways, etc).For example, p53 is a tumor suppressor gene capable of controlling cell division rate by keeping cells from proliferating in an uncontrolled manner.In consequence, mutations of the p53 gene are often observed in cancer cells that lost their ability to regulate the rate at which they grow.In conclusion, a mutation in a tumor suppressor gene may stop a cell from checking things during the cell cycle.
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Help me with this please
Helicase is an enzyme responsible for unwinding the double helix of the DNA by breaking apart the hydrogen bonds between each of the base pairs. Which phase of the cell cycle is helicase most likely active?
A) S
B) М
C) G1
D) G
Helicase is an enzyme responsible for unwinding the double helix of the DNA by breaking apart the hydrogen bonds between each of the base pairs. Helicase is more active in the S phase of the cycle. Option A is the correct answer.
What are the events of the cell cycle?
The cell cycle consists of the interphase and the cell division phase, where the cell division takes a little time in comparison to the interphase. The parent cell spends the majority of its time in the cell cycle's interphase and less time in the cell division phase.
There are three phases in the cell cycle's interphase: G1, S, and G2. The cell grows in both the G1 and G2 phases, while the DNA replicates in the S phase.
Hence, helicase is an enzyme that is responsible for unraveling the double helix of DNA by breaking apart the hydrogen bonds between each base pair. Helicase is more active in the S phase of the cell cycle. Option A is the correct answer.
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Enumerate ways on how humans produce sound:Ex:clapping your hands
a.__________________________
b.__________________________
c.__________________________
d.__________________________
e.__________________________
Answer:
vibrating vocal cords, stomping feet, gargling, whistling, cracking your knuckles
Answer:
•shouting•talking•singing•playing instruments•laughing•yelling•screaming•cryingExplanation:
yAn LNG po Alam ko e:^what is sodium E621 know as MSG is
Answer:
MSG is short for monosodium glutamate. It is common food addictive-with the e-number E621 that is used to enhance flavor.
Explanation:
MSG is derived from the amino acid glutamate or glutamic acid, which is one of the most abundant amino acids in nature.
Sound waves move the slowest through which medium? water ice air wood
Answer: The answer is the following.
the question is: sound waves move through which medium?
a. water
b. ice
c. air
d. wood
the best answer to this question would be c. air. <3
Explanation:
The Speed of Sound: Sound travels at different speeds depending on what it is traveling through. Of the three mediums (gas, liquid, and solid) sound waves travel the slowest through gases, faster through liquids, and fastest through solids. Air is a gas so therefore, C. AIR IS THE CORRECT ANSWER :)
The sound waves move the slowest through which medium:
C.Air
The sound waves move the slowest through which medium is air. Sound travels at different speeds depending on what it is traveling through. Of the three mediums (gas, liquid, and solid) sound waves travel the slowest through gases, faster through liquids, and fastest through solids.Therefore, the correct option is C.
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How does the motion of particles in a gas change as the gas cools? (1 point)
They move more slowly.
b
They move in a more circular pattern.
ос
They move faster.
d
They move more randomly.
Drag one of the nucleotides to a corresponding nitrogenous base on one of the two strands. What is
the role of DNA polymerase in this process?
Answer:
This enzyme is responsible for the production of DNA molecules from RNA molecules.
Explanation:
DNA polymerase is a type of enzyme that produces DNA molecules from RNA molecules. The enzymes play a vital role in the replication of DNA in which the enzyme produces two identical copies of DNA from one original DNA molecule. This replication of DNA is very important for cell division as well as growth of the organisms. Without this replication, no mitosis occurs in the body that leads to no growth of the organism so we can say that this enzyme plays a great role in growth of an organism.
The process of the formation of the new from the old DNA is called is replication.
The enzyme responsible for the formation of DNA replication is DNA polymerase.
The things required in the formation of new DNA is as follows:-
DNADNA polymeraseDNA ligaseThe function of the DNA polymerase during the time of DNA replication is to get the nucleotide as a monomer to join together by the DNA ligase. The nucleotide joins together in the 5' to 3' direction.
The drag of one nucleotide from the sequence leads to the mutation. These lead to the form of the infected protein and form the abnormal character.
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Why do cells need to undergo meiosis
Answer:
Meiosis is a type of cell division that reduces the number of chromosomes in the parent cell by half and produces four gamete cells. This process is required to produce egg and sperm cells for sexual reproduction. ... Meiosis begins following one round of DNA replication in cells in the male or female sex organs.
Which of the following statements about coral reefs is TRUE?
O Coral reefs are generally less than ten years old.
o Coral reefs contain a great diversity of life and species.
O Coral reefs cover most of the world's ocean floor.
O Coral reefs contain very few species other than fish.
Answer:
The correct answer is "Coral reefs contain a great diversity of life and species." as while they cover 1% of the ocean floor, they are homes to more than 25% of marine life.
Explanation:
The following statements about coral reefs are true: "Coral reefs contain a great diversity of life and species." That is the second option, as the coral reefs are among the most diverse and biologically rich ecosystems on the planet.
What is the importance of coral reefs to the ecosystem?The coral reef is a type of structure that forms large, interconnected structures, creating a habitat for a wide range of other species, such as fish, crustaceans, and mollusks, and the reef provides shelter and food for a diverse array of organisms. Coral reefs generally occur in warm waters along the coasts of tropical and subtropical areas, so climate change harms them.
Hence, the following statements about coral reefs are true: "Coral reefs contain a great diversity of life and species." That is the second option, as the coral reefs are among the most diverse and biologically rich ecosystems on the planet.
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GIVING BRAINLIEST AND THE REST OF MY POINTS!!!! :)
What life cycle adaptation does the desert gold poppy have that helps it reproduce and survive in its dry desert environment?
A) It produces large amounts of spores.
B) It only produces seeds in the summer when it is driest.
C) Its seeds stay dormant until there is enough precipitation for them to grow.
D) It can produce seeds all year round that can grow in dry and wet conditions.
State one way by which Carbon Dioxide decreases in the atmosphere
Answer:
The early atmosphere was mainly carbon dioxide and water vapour. Water vapour condensed to form the oceans. Photosynthesis caused the amount of carbon dioxide to decrease and oxygen to increase.
Hope it helps!!!
meaning of cell or cytology
Answer:
the smallest structural and functional unit of an organism, typically microscopic and consisting of cytoplasm and a nucleus enclosed in a membrane.
Explanation:
Cell is the building blocks of life.
helppppp plzzzzzzzzzzzz
Answer:
The answer is A.
Explanation:
The question is asking how the moon phase changes from a new moon to a full moon. You can see on the Picture that when it is a full moon, the order from left to right is Sun, Earth, and Moon.
Which organ is shaped like a small balloon and is located in the space between your hip bones
Answer:
bladder
Explanation:
Answer:
Bladder
Explanation:
The Bladder is shaped like a small balloon and is located in the space between your hip bones
How do the nutrients in soil cause problems when erosion relocates the soil to ponds or lakes?
They cause algae to reproduce rapidly causing algae blooms.
They poison the microorganisms that break down dead organic matter in the ponds or lakes.
They poison the fish in the ponds or lakes.
They change the color of the water and reduce aquatic photosynthesis.
A) They cause algae to reproduce rapidly causing algae blooms.
(a) Part A Which claim is best supported by the data?
A)As annual precipitation increases, the populations of Species A and B increase.
B)As annual precipitation increases, the populations of Species A and B decrease.
C)As annual precipitation increases, the population of Species A increases while Species B decreases.
D)As annual precipitation increases, the population of Species A decreases while Species B increases.
Part B If the precipitation levels observed in year '09 remain the same and other resources remain constant, identify and describe what can be predicted to occur with the population of Species B over the next 6 years? Enter the answer in the box.
Answer:
D
Explanation:
It increases
The claim is best supported by the data is as annual precipitation increases, the populations of Species A and B decrease. Thus, option B is correct.
When annual precipitation increases according to the data?
As annual precipitation increases, the populations of Species A and B decrease. As annual precipitation increases, the population of Species A increases while Species B decreases. As annual precipitation increases, the population of Species A decreases while Species B increases.
As annual precipitation increases, the populations of Species A and B increase. As annual precipitation increases, the population of Species A decreases while Species B increases.
If the precipitation levels observed in year '09 remain the same and other resources remain constant, identify and describe what can be predicted to occur with the population of Species B over the next 6 years.
Therefore, The claim is best supported by the data is as annual precipitation increases, the populations of Species A and B decrease. Thus, option B is correct.
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Examine the Punnett square below. A cross between the two parents results in 50 offspring. How many of the offspring are most likely to have the dominant trait?
Find the measure of 3.
THIS IS EARTH SCIENCE
PLEADE ASNWER THE Two QUESTIONS IN THE PICTURE
How do ocean currents affect the coastal regions of S.America at 20 degrees south latitude
When a lake freezes over. How does the energy content of the lake change?
Answer:
Explanation:The remaining air (air that does not descend at 30 degrees North or South latitude) continues toward the poles and is known as the westerly winds, or westerlies
The dominant trait for flower color in pea plants is purple (P) and the recessive trait is white flowers (p). What is the phenotype of a plant with the alleles, Pp?