Answers
Answer:
b) to deliver nutrients and other essential materials to cells
Related Questions
Explain why different liquids do not reach the same height in capillary tubes of the same diameter. Please choose the best explanation.
Answers
This height is decided by the surface tension of the liquid
Cohesive forces stronger than adhesive forces reduce the height of the liquid in the capillary tube, whereas adhesive forces stronger than cohesive forces increase the height of the liquid.
Please answer this question on where the answers would go.
Answers
Answer:
plantcells always have a cell wall and cloroplasts, animal cells never have a cell wall and a nuclioid, and bacteria calls are proeukryotic, and sometimes have a cell wall.
Explanation:
Answer:
Plant Cells: Always have a cell wall, have chloroplasts.
Animal Cells: Never have a cell wall, have a nucleoid.
Bacteria Cells: Are prokaryotic, sometimes have a cell wall.
Explanation:
Hope this Helps!!
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a.
Which of the following is not true about the taiga biome?
The taiga biome has four distinct seasons.
b. It is characterized by the presence of coniferous trees.
It is the largest biome in the world.
d. It is located below the tundra in North America, Europe, and Asia
C.
Answers
Answer:
A. The taiga biome has four distinct seasons.
Explanation:
The taiga biome has TWO distinct seasons, winter and summer.
they are right!!!!!!!!!!
Select the correct location on the image.
The following diagrams show the different sea levels at a particular coast. In which zone would you expect the organisms to be the most adapted to surviving in harsh sunlight?
Answers
Answer:
Spray
Explanation:
Organisms in the spray zone are exposed to the most sunlight
Answer:
I think it might be high tide instead of spray.
Explanation:
Does soccer ball not moving has energy?
Answers
Answer:
No, it still has energy. The energy is just being conserved.
2. Suppose the object Marcie found is a rock formed by volcanic processes. What type of rock would it be? A. igneous B. metamorphic C. mineral D. sedimentary
Answers
Answer:
The answer would be A. igneous
Explanation:
Identify the strategies that CAM (crassulacean acid metabolism) plants use to minimize water loss while obtaining CO2 (carbon dioxide) for photosynthesis.
Answers
Answer:
Explanation:
crassulacean acid metabolism (CAM) plants minimizes loss through separation in time. The stomata of CAM plant is opened at the night and carbon dioxide is trapped in and then closed in the morning to minimize water Loss.
The carbondioxide that is trapped in is ferried via phosphoenol pyruvate (PEP) and then broken down by PEP carboxylase to form oxaloacetate from there it is further broken down to malate or malic acid and other organic acid. It is therefore stored in the vacoule as malic acid until when it is needed in the day where it will be broken down into pyruvate and Carbondioxide.
Loss is minimize by through the closure of stomata during the day this is to prevent excessive transpiration when the weather is hot and stomata is opened.
Answer and Explanation:
CAM plants live in extremely dry and hot environments. These species have adapted to take CO₂ in arid and semiarid areas by opening stomas during the night, when the temperature decreases and humidity increases, to avoid excessive water loss and dehydration. During the day, temperature increases, so these plants close stomas in order not to lose water. Hence CAM plants have very little requirements of water during CO₂ fixation.
So the strategy of these plants is to separate temporarily two processes. Both of them occur in the mesophil of the leaves, but not simultaneously.
During the night, it occurs the Hach and Slack cycle, taking CO₂ with open stomas. Then CO₂ is fixated in malic acid that will be stored in vacuoles of the photosynthetic cells. And during the day, the Calvin cycle takes place, with closed stomas to avoid transpiration.The malic acid is synthesized in big amounts during the night, and it decarboxylates during the day releasing CO₂ that will be used in the Calvin cycle to produce carbohydrates.
In order to carry out the functions of life, organism must
Answers
Answer:
Take in energy
Explanation:
Energy is need by all organism to carry out all functions of life. Energy is defined as the ability to do work.
Every organisms main goal is to find energy which they can use for all of their living processes.
For producers such as plants, they use inorganic substances from the environment to manufacture their own food. Consumers such as animals rely on the organic matter of plants and even other animals to manufacture their food for energy production. Decomposers feed on dead organisms in order to source for energy.Match the word with the definition!
Help please
Answers
Answer:
Cloud of ash rock and gas that speeds down a volcano
Lahar- A flood of water, ash, and rock
Cinder Cone Volcano- Composed of cinders, shaped like a cone
Shield volcano- A flat and broad volcano with mild eruptions
Composite Volcano- A tall volcano with explosive eruptions
Explanation:
Put the steps of our solar system's formation in the order scientists think they happened.
Answers
2.) the cloud collar, possibly due to shock wave of a near by exploding star called a super nova.
3.) when this dust cloud collapsed, it formed a solar nebula- a spinning, swirling disk of matter.
Biomolecules found in mitochondria
Answers
Answer:
The membranes of mitochondria are made of phospholipids and proteins, both of which are types of biomolecules. Since cellular respiration occurs within mitochondria, another biomolecule that is associated with mitochondria would the carbohydrate that is known as glucose.
Explanation:
Mitochondria are organelles found in most eukaryotic cells that are involved in various cellular processes, including energy production, calcium signaling, and apoptosis. Their biomolecules include tRNA and acetyl-CoA, etc.
What is mitochondria?The mitochondria also contain other important biomolecules, such as lipids and proteins. The lipids found in mitochondria are involved in the formation of the mitochondrial membranes and play a role in maintaining the structure and function of the organelle. The proteins found in mitochondria are involved in a variety of processes, including energy production, mitochondrial dynamics, and signaling. Overall, the biomolecules found in mitochondria play a critical role in the organelle's function and are essential for various cellular processes. Dysfunction of mitochondria or their biomolecules can lead to several diseases, including mitochondrial disorders, neurodegenerative diseases, and cancer.
Hence, biomolecules include tRNA, acetyl-CoA, etc.
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____crust is the thick part of the the Earth's crust, not located under the ocean
Answers
Answer:
Continental or oceanic crust
Explanation:
If ur saying the thickest it would be oceanic
wrist drop results in an inability to extend the hand at the wrist. which nerve would most likely be affected in this injury
Answers
Answer:
The answer to that ir the radial nerve
Explanation:
The distal part of the arm is where the radial nerve is most vulnerable to damage. Entrapment neuropathy might result from it being crushed between the overlaying bone fragments.
What nerve most likely be affected in this injury?Weakness, numbness, and pain are common symptoms of peripheral neuropathy, which develops when the peripheral nerves, which are located outside the brain and spinal cord, are damaged.
These symptoms typically impact the hands and feet. Additionally, it may have an impact on many bodily processes like digestion, urine, and circulation.
Pain, numbness, and/or paresthesia, particularly in the middle finger, index finger, thumb, back of the hand, and/or arm, are signs of radial nerve injury.
Therefore, There may also be finger and wrist drop. The location and kind of the injury will determine the exact symptoms.
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Plss help Due today! 40 points and brainliest to best answer!! Help Plzzz!
1) Identify the trait that you believe to be dominant for each of the features surveyed. Explain your reasoning.
2) What recessive features do you exhibit? Do you have any relatives who exhibit those same features?
3) In the family you surveyed, what features did the offspring share with one or both parents? Were there any features that the offspring exhibited that were not exhibited by either parent?
4) How is it possible for an offspring to exhibit a recessive trait if neither parent exhibited that recessive trait? What must be true about the parents’ genes for this to occur?
5) Are there any results in your data that surprised you?
6) It is possible that a recessive trait in a survey such as this one may have a greater total number than its dominant counterpart. Explain how that might happen in an investigation like this.
7) How might surveying a different number of people or different population of people possibly change the percentages that you calculated?
Use the info in the fallowing images to answer these questions plss.
Answers
The proposed traits exhibit mostly complete dominance and one of them incomplete dominance. Free earlobe, hair on the knuckle, widow's peak, curly hair and cleft on the chin are the dominant traits.
---------------------------
1)
Features:
Earlobe (Free or attached) ⇒ controlled by a single diallelic gene expressing complete dominance
Free is dominant // Attached is recessive
Hair on the knuckle (yes or no) ⇒ controlled by a five-allelic single gene.
Presence of hair is dominant // Absence of hair is recessive
Hairline ( Widow's peak or straight) ⇒ Coded by a single diallelic gene.
Widow's peak is dominant // Straight line is recessive
Hair texture (Straight or curly) ⇒ Coded by a single diallelic gene, expressing incomplete dominance.
Curly is dominant // Straight is recessive // Wavy hair is the intermediate phenotype
Chin shape (Cleft or no cleft) ⇒ Coded by a single diallelic gene
The cleft is dominant // No cleft is recessive
2)
Recessive traits :
Absence of hair in the knuckleNo cleft in the chin
Mother, sister, and brother with no hair on the knuckle.
Mother, father, sister, and brother with no cleft in the chin
3)
Surveyed family composed of mother, father, two sisters and a boy.
Earlobe (Free or attached)Mother and father with free earlobe
Their three children have free earlobes
The offspring share the trait with both parents.
Hair on knuckle
Father with hair and mother with no hair on the knuckle
Their three children do not have hair on their knuckles
The offspring share the trait with the mother but not with the father.
Hairline
Mother and father exhibiting the widow's peak
The three children have widow's peak
The offspring share the trait with both parents.
Hair texture (Straight or curly)
Mother and father have curly hair
Two daughters have curly hair
Son has wavy hair
The sisters share the trait with both parents, but the boy does not.
Chin shape (Cleft or no cleft)
Mother and father with no cleft on the chin
Children with no cleft on the chin
The offspring share the trait with both parents.
4)
If a recessive trait appears only in one of the children but no parent expresses it, it means that the mother and the father must be heter0zyg0us and that the gene coding for the trait expresses complete dominance.
Let us picture the cross:
Parentals) Pp x Pp
Gametes) P p P p
Punnett square) P p
P PP Pp
p Pp pp
F1) 3/4 of the progeny will express the dominant trait (PP + Pp)
1/4 of the progeny will express the recessive trait (pp)
So even when both parents are expressing the dominant trait, their children can express the recessive trait.
5)
Yes. Most of the traits are coded by diallelic single genes expressing complete dominance. But hair texture shows incomplete dominance, with a third phenotype different from the ones expressed by h0m0zyg0us individuals.
Also, hair on the knuckles exhibits graduation of the phenotype. Individuals that express the dominant trait and have hair on knuckles may have short thin hair, thick long hair, and many intermedia phenotypes. This is because the gene coding for this trait is 5-allelic.
6)
Yes, it is possible. Two reasons can explain this,
1- Because in the population the frequency of the recessive genotype is higher than the frequency of the h0m0zyg0us dominant and heter0zyg0us genotypes.
This could be because the recessive genotype improves the fitness of individuals, so its frequency is increasing in the population.
Or because of Mating systems ⇒ Endogamia or mating with individuals exhibiting similar genotype/phenotype.
2- By random chances. Sampled individuals could exhibit recessive traits by chance.
7)
Sampling a higher or lower number of individuals in the population will affect the results.
Sampling a small number of individuals can not reflect what is actually happening in the population. There are high chances of sampling individuals of the same genotype and phenotype.
Sampling many individuals will provide more reliable information about the population under study. There are high chances of getting individuals to express all possible genotypes and phenotypes.
Sampling individuals from another population might include genes that were not present in the first population. It might increase diversity and heterogeneity.
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PLZ HELP I HAVE NO IDEA
Answers
Ecosystems in human-dominated landscapes are generally _____ and _____, and support more species with _____ - selected reproductive strategies, and are typical of _____ succession. Group of answer choices
Answers
Complete question:
Ecosystems in human-dominated landscapes are generally _____ and _____, and support more species with _____ - selected reproductive strategies, and are typical of _____ succession.
Group of answer choices
fragmented, pristine, k, early fragmented, disturbed, k, early fragmented, disturbed, r, early unfragmented, disturbed, r, early unfragmented, pristine, r, earlyAnswer:
The correct answer is number 3. fragmented, disturbed, r, early.
Ecosystems in human-dominated landscapes are generally fragmented and disturbed, and support more species with r - selected reproductive strategies, and are typical of early succession.
Explanation:
Species have different strategies to survive in different environments, reproduce, disperse, and compete. These strategies are r strategies and k strategies.
"r" species have a high growth rate per capita, low competition capabilities. This is why they can colonize new environments. But they can not compete with new-established species. "r" species are often displaced by "k" species. These species are mostly small-sized organisms with short life cycles. They reach sexual maturity early and have numerous descendants spending no time or energy in parental care. "k" species have a low growth rate per capita, but they are big competitors with the capacity of displacing other species and monopolizing the available resources. These are big-sized species that live for a long time, reaching sexual maturity in advanced stages of their lives. They do not have numerous progenies, but they spend time in parenting.r and k strategies are closely related to reproductive strategies, habitat selection, and dispersion ability.
As human-dominated landscapes are generally fragmented and disturbed, new areas are constantly available for r species to colonize them. This is an early stage of succession when these r species arrive in the open perturbated space and colonize it. These r species start a modification in the habitat that makes it suitable for the posterior establishment of later K species. As conditions get better, competition becomes more frequently between species. The first species are eventually eliminated by competition, but new species keep appearing and competing for resources.
what's the answer to this?
Answers
Answer:
Explanation:Its going to end with a decimal
PLZZZZ HELPPP!!
A person with a traumatic brain injury now exhibits some symptoms including erradic,
impulsive behavior, worse judgement than usual of risky situations, and odd social
behaviors and violent mood swings. Based on these symptoms, which area of the brain
was most likely invovled in the injury? A. Frontal lobe. B.Temporal lobe
C. Thalamus
D.Cerebellum
Answers
Answer:
A. Frontal lobe
Explanation:
The frontal lobe of the brain, behind the forehead, is strongly associated with motor function, spontaneity, impulsive behavior, judgement decisions, and social behaviors and mood.
A traumatic brain injury is dysfunction caused to the brain. The frontal lobe of the brain was most likely involved in the injury. Thus, option A is correct.
What is the frontal lobe?A frontal lobe is a part of the brain that is present in the anterior portion and is involved in emotional balance, interaction and communication, memory, and motor activities.
The change in behavior, poor decision and judgment skills, mood swings, and emotional unbalances are the functions that the frontal lobe of the brain controls.
The temporal lobe is the auditory lobes and is involved in hearing and sound. Thalamus is in the middle brain and is involved in the transfer of sensory and motor information, and Cerebellum controls the movement and coordination.
Therefore, option A. frontal lobe is involved in the injury.
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How do folds form?
Folds are created when sedimentary layers are compressed.
Folds are created when two plate tectonics collide.
Folds are only created during earthquakes.
Folds are only created during a volcanic eruption
Answers
Answer:
Folds are created when sedimentary layers are compressed.
Explanation:
Folds can be formed when sedimentary rocks are compressed usually by compressive stress.
A fold is a wave like structure found in rocks or a landscape. When rock body is subjected to compressive stress folds will likely occur.Folds are not necessarily created when two plate collide. Their might not be enough compressive stress to allow for the formation of a fold.
Also, folds are not created by earthquakes because it is a brittle deformation.
Fold are not created during volcanic eruption.
Answer:
A. folds are created when sedimentary layers are compressed
Explanation:
Some solutes move freely across cell membranes, while other solutes require
assistance from special gates. Passive transport and active transport are methods of
moving solutes across cell membranes.
Which of the following accurately describes the difference between passive transport
and active transport?
A Passive transport can move molecules both in and out of a cell, but active transport
cannot.
B Passive transport works against a concentration gradient, but active transport does
not.
C Passive transport does not require energy, but active transport does.
D Passive transport requires carrier proteins, but active transport does not.
Answers
Answer: C Passive transport does not require energy, but active transport does
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Q-Science-Gr7-SQSA1-CBT (2020-21) Question: 1-9
Evidence suggests that Earth is about 4.6 billion years old, even though no Earth rocks have been found that can be dated at more than 4 bilion years old. This discrepancy is most likely caused by Earth's
original crust being
Difficult to date so precisely
Subject to extensive erosion
Blasted away during Earth's formation
Destroyed by solar radiation
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Social Studies Stud.pdf
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Answer:
Subject to extensive erosion should be correct.
A student identifies the following parts of a cell.
1. cell wall
2. RNA
3. mitochondrion
4. ribosome
The presence of which structure allows the student to conclude that this is a eukaryotic cell?
Structure 1
Structure 2
Structure 3
Structure 4
Answers
Answer:
mitochondrion becoz it is a membrane bounded organelle which is only present in eukaryotic cell
Answer: the answer is 3. mitochondrion i just took the test
Explanation: hope this helped thx for the points :D
one way that RNA differs from DNA?
Answers
The __________ is the control center of the body.
Answers
The Brain is the control center of the body.
Answer:
brain
Explanation:
17. When table salt (NaCl) is produced, which of the following best describes the actions of
the sodium (Na) and chlorine (CI) atoms?
A. Sodium atoms replace chlorine atoms.
B. Sodium and chlorine atoms mix together.
C. Sodium atoms dissolve in chlorine atoms.
D. Sodium and chlorine atoms bond chemically.
Answers
Answer:
DExplanation:
this is because according to me Na is a mental and Cl is non metal so when and
Answer:D
Explanation:
What moon phase is seen from Earth when the moon is
nearest the sun?
Answers are above
Answers
Please Help :)
Which statement about sexual reproduction is most accurate?
A. Offspring are physically identical to their mother.
B.Offspring are physically identical to their father.
C. Offspring are physically identical to both of their parents.
D.Offspring are not physically identical to either of their parents.
Answers
Answer:
The correct answer is actually D. Sexual reproduction involves both male and female intercourse, while asexual doesn't. In asexual reproduction, the offspring is identical to its one and only parent. Think about sexual reproduction like this. Two parents, and then a child. Are you completely identical to your mom? or your dad? what about both. you can"t be identical to both. Therefore the answer is D.
What is the advantage of using the electromagnetic spectrum model?
It helps compare frequencies of light.
It helps change the wavelengths of light.
The color of light waves can be changed using the model.
The intensities of light waves can be changed using the model.
Answers
The electromagnetic spectrum describes all the wavelengths of light.
What is the electromagnetic Spectrum model?The scientists used the term electromagnetic spectrum to describe the entire range of light that exists in the universe. From gamma rays to radio waves, most of the light present in the universe is invisible to us.
The electromagnetic spectrum describes all the wavelengths of light. It explores an otherwise invisible universe, from exploding stars to dark nebulae.
The electromagnetic spectrum consists of radio waves (used in commercial television and radios, radar, microwaves ), infrared radiation, visible light, gamma rays, x-rays, and ultraviolet radiation rays.
All the wavelengths and frequencies of the electromagnetic spectrum are used in spectroscopy.
Thus the electromagnetic spectrum describes all the wavelengths of light.
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Answer: A: It helps compare frequencies of light.
Explanation: :)
Which compound forms when carbon dioxide diffuses and reacts with seawater?
A. Hydroxide ions
B. Carbonate
C. Bicarbonate
D. Carbonic acid
Answers
Answer:
D. Carbonic acid
Explanation:
hope this will help You.
What happened if diaphragm is damaged?