Answer:
Ladder
Explanation:
The structure of the double helix is often described as being like a ladder that has been twisted into a spiral shape. Therefore, option (B) is correct.
What is the structure of DNA?DNA (deoxyribonucleic acid) is a long, linear polymer that is made up of repeating units called nucleotides. Each nucleotide consists of a sugar (deoxyribose), a phosphate group, and one of four nitrogenous bases: adenine (A), guanine (G), cytosine (C), or thymine (T). The sequence of these nitrogenous bases determines the genetic information encoded in DNA.
One of the most common models for the structure of DNA is the "double helix" model, which was proposed by James Watson and Francis Crick in 1953. This model depicts DNA as a double-stranded helix that is held together by hydrogen bonds between the complementary nitrogenous bases A and T, and G and C. The two strands of the helix are antiparallel, meaning that they run in opposite directions. The structure of the double helix is often described as being like a ladder that has been twisted into a spiral shape.
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can dna replication occur without proteins
which one is not a lip
Which option is the smallest particle that represents the element iron?
O A. An electron of iron
B. An atom of iron
C. A crystal of iron
D. A molecule of iron
i believe it's B. An atom of iron
In two or three well-developed paragraphs, explain how citizens can affect environmental policy at each level of government: local, state, and national.
Local
Citizens can take a local initiative for example go around and voluntarily pick up trash and garbage make sure to spread the word to keep the environment safe and clean since us citizens are the ones who need to take action on the policies
State
State governments can introduces advantages for the citizens who take part in the policies and hold marches and events to raise awareness
National
National governments can introduce enticing policies for both citizens and state governments since we need everyone to take part
Cell Energy Cycle need help
Answer:
What is the chemical formula of oxygen? O2
Glucoseis a simple sugar. What is the chemical formula of glucose? C6H12O6
What is the chemical formula of carbon dioxide? co2
Explanation:
Gizmo Warm-upThe Cell Energy Cycle Gizmo™ illustrates two processes that are essential to life: photosynthesisand cellular respiratio
All cells make ATP by pathways that release chemical energy from organic compounds such as glucose. 2. Cells store chemical energy as ATP to use in future reactions that require energy input.
This fly has 14 chromosomes in its cells.7 maternal chromosomes and 7 paternal chromosomes.Assume you are a microscopist viewing this fly cells that are undergoing meiosis. Conclude the number of chromosomes/chromatids at the end of meiosis 1 as well at the end of meiosis 2. please answer!!!!!
Answer:
23 pairs in meiosis 1 and 23 numbers in meiosis 2.
Explanation:
There are diploid number of chromosomes means double number of chromosomes at the end of meiosis 1 while on the other hand, at the end of meiosis 2, there are haploid number of chromosome means half number of chromosomes in each daughter cell. In humans meiosis 1, there are 23 pairs of chromosomes that is diploid in nature but in the end of meiosis 2, there are only 23 chromosomes in each daughter cell which is haploid in nature.
Which type of transport is responsible for oxygen entering into blood cells?
A- Facilitated
B- Active
C- Vesicle
D- Passive
Answer:
Facilitated
Explanation:
Ape-x
To absorb minerals, a plant requires
(1 Point) A heat B. energy C. sunlight
Answer:
I think the answer is B
Explanation:
It is because mineral salts are transported with active transport. Thus, energy is the main factor for active transport.
You are walking through a mixed evergreen-deciduous forest, where approximately 10 percent of the trees are eastern hemlocks, a species of evergreen tree that casts very deep shade on the forest understory. Interestingly, under every eastern hemlock, you find the same small herbaceous plant species. However, you never observe this species anywhere else, even though a healthy diversity of other species live throughout the forest understory. You expect the small herbaceous species to have _____ growth, _____ sexual maturity, _____ energy expended on seeds, and _____ reproduction. Please choose the correct answer from the following choices, and then select the submit answer button. Answer choices fast; early; high; no vegetative slow; late; low; vegetative slow; early; low; vegetative fast; early; low; vegetative slow; late; high; no vegetative
Answer: slow; late; low; vegetative
Explanation: Due to the casting of deep shade on the forest understory by eastern hemlock, direct sunlight and other necessities for photosynthesis and other life processes needed by the herbaceous plant species for optimum growth is being deprived.
However, coupled with the nature of these herbaceous plant species, having non-woody stems with their growth above the ground level often dieing off particularly in winter in the temperate zone, makes their growth in that kind of location to be stunted.
Thus, herbaceous plant species with slow growth rate leading to late sexual maturuty while having low expanded energy on seeds due to low photosynthetic rate and low vegetative reproduction should be expected.
Which of the following terms describes all of the living and nonliving things
that interact in an area?
A. Ecosystem
B. Biome
C. Population
D. Community
Answer:
Ecosystem
Explanation:
Ape-x
How are a rainforest and a wetland similar?
Answer:
They are both humid and hot, but the wetlands are solely on the edge of an ocean or sea.
Explanation:
Carbon dioxide example?
Answer:
when you burn fuels like propane or wood, the creation of the burning produces things like water Carbon dioxide and other gasses.
Explanation:
burning fuels makes carbon dioxide, when we lite a campfire we release gasses and cause a chemical reaction with the air.
Answer:
when you burn fuels like propane or wood, the creation of the burning produces things like water Carbon dioxide and other gasses.
hope it helps
Farmer Brown notices his tomato plants are leaning towards the front, which results in spoiling tomatoes. Briefly explain to Mr.
Brown what method he can
use prevent that from happening
Answer:
Install wood or rebar stakes at least 6 feet-tall at planting time. As the plants grow, tie the stems loosely to the stakes with twine or strips of fabric.The most common cause of leggy seedlings is lack of strong, overhead lighting. Tomato plants become long and spindly when they are reaching for the light. If the light only comes from one direction, then your seedlings not only become leggy, but will also lean towards the light.Generally speaking, in the north, tall plants such as beans, peas, and corn do best on the north side of the garden. Medium size crops such as tomatoes, cabbage, squash, pumpkins, and broccoli in the center of the garden.
Reactive metals undergo combustion. Which product(s) form when sodium
undergoes combustion?
O A. Sodium oxide
B. Sodium oxide and water
C. Sodium and oxygen
D. Sodium oxide and hydrogen
Answer:
B
Explanation:
sodium oxide and water
Decomposers are important in the environment because they
A. convert large molecules into simpler molecules that can then be recycled
B. release heat from large molecules so that the heat can be recycled through the ecosystem
C. can take in carbon dioxide and convert it into oxygen
D. convert molecules of dead organisms into permanent biotic parts of an ecosystem
Answer:
D
Explanation:
Decomposers are important in the environment because they convert molecules of dead organisms into permanent biotic parts of an ecosystem. So, the correct option is (D).
What are Decomposers?Living organisms such as micro-organisms that convert dead plants and animals into humus are known as decomposers. Fungi and bacteria fall in this category. It recycles and converts the dead matter into humus which mixes with the soil of the forest. It provides essential nutrients to the plants. It is also known as detritivores.
There are four types of decomposers, namely
FungiInsectsEarthwormBacteriaThese types of organisms decompose or break down organic matter such as the remains of dead organisms, carrying out the process of decomposition, which occurs after the death of all living organisms.
They are also called reducers because they are able to remove or degrade dead bodies of organisms and because of their small size they are known as micro consumers.
Thus, Decomposers are important in the environment because they convert molecules of dead organisms into permanent biotic parts of an ecosystem. So, the correct option is (D).
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Buying a house is most likely a long-term goal for a person of which of these
ages?
A. 57 years old
B. 67 years old
C. 77 years old
O D. 17 years old
a/ Một nguyên tử X có tổng số các loại hạt bằng 18
b/ Một nguyên tử Y có tổng số hạt cơ bản 58 và số khối nhỏ hơn 40. Hãy xác định các nguyên tử trên. Biết số khối A = N+P
Explanation:
a) p+e+n=18
mà p=e=z => 2p +n=18
câu a có thiếu dữ kiện không?
Explain how the following events could be important in the formation of a new community of living things:
a) Fish-eating birds land on rocky islands
b) A coconut is washed up on a beach
c) An especially high tide washes seaweed onto a sandy beach
Answer:
The secondary succession.
Explanation:
It one of the ecological successions of a plant life that take place on the primary or disturbed system as the succession occurs in the preexisting soils as here the preen of the rocky island and the sandy beach is considered to be the primary succession where the coconut is washed by the high tides along with the seaweed.
The secondary succession thus starts to form with the interaction of the and beach as the coconut will continue and grow in the sandy beach as it will get nutrient and moisture firm the soil and gradually develop into a large island of coconut palm trees and thus the rocky beach will get converted to a secondary living community.
What are the functions of the kidneys that help in maintaining Homeostasis?
A. remove waste products from the blood
B. help maintain the balance of electrolytes, pH, and fluid in the body.
C. release hormones that help keep the bones healthy
D. All are correct choices
E. Non of the choices are correct
Un fluido es todo cuerpo que tiene la propiedad de fluir, y carece de rigidez y elasticidad, y en consecuencia cede inmediatamente a cualquier fuerza tendente a alterar su forma y adoptando así la forma del recipiente que lo contiene. Los fluidos pueden ser líquidos o gases según la diferente intensidad de las fuerzas de cohesión existentes entre sus moléculas. Seleccione una: Verdadero Falso
Answer:
True.
Explanation:
Yes, fluids can be liquids or gases depending on the different intensity of the cohesion forces that exists between their molecules because these cohesive forces allows the molecules to attach to one another that leads to their state of matter. Cohesion forces such as hydrogen bonding and van der Waals forces are responsible for the bulk property of liquids that resisting separation from one another so due to these bonding, the molecules attach to one another on the basis of strong bonding between molecules.
Label this organelle and Define its function in the cell.
Answer:
do you have to label the whole thing --- or are you just labeling that its the "chloroplast"?
Explanation:
Bakit mahalagang isabuhay ang pangangalaga sa kalikasan at ano ang mga kakayahang mayroon ka upang maisabuhay ito?
Explanation:
The primary motivation for conservation and is to conserve wildlife and maintain biodiversity. Safeguarding wildlife and environment and conserving it for future generations ensures that the species we care about do not become extinct. The preservation of such ecosystems aids in the protection of the overall ecosystem.
Which flowchart best explains how a change in ocean temperature, such as
occurs during El Niño or La Niña, could affect weather in another part of the
world?
A. Ocean
Weather
Clouds - Wind
-
B. Coriolis effect - Atmosphere – Wind - Ocean
C. Weather
Atmosphere – Wind – Ocean
D. Ocean – Atmosphere
Atmosphere – Wind – Weather
Answer:
C
Explanation:
Becuase the weather atmostphere is the core to our weather systems
Answer:
option c is the correct answer
Can someone please help me with these two:
1. Blood is at it's highest pressure just when it leaves the heart. Why do you think so?
2. The blood in an artery flows faster and at higher pressure than blood in veins. Why so?
Answer:
1.Blood pressure can be defined as the pressure of blood on the walls of the arteries as it circulates through the body. Blood pressure is highest as its leaves the heart through the aorta and gradually decreases as it enters smaller and smaller blood vessels (arteries, arterioles, and capillaries).
2. The more rounded the lumen, the less surface area the blood encounters, and the less resistance the vessel offers. Vasoconstriction increases pressure within a vein as it does in an artery, but in veins, the increased pressure increases flow.
animais que dependem parcialmente da água - necessitam de ambientes úmidos para evitar a dessecação da pele e para botar seus ovos, pois a casca não é resistente a perda de água. a descrição refere-se a qual grupo de vertebrados?
a) aves
b) mamíferos
c) répteis
d) anfíbios
e) peixes
pfv ajudem
vo contra pro psor que tu ta pegando resposta no brainly
Case Ico-delete Highlights
A 42-year-old woman presents for an evaluation of back pain. She states that she has a history of recurrent UTIs; she notes that on occasion her urine appears red. Upon physical examination, she demonstrates CVA tenderness. Her vital signs include blood pressure of 145/90 mm Hg, respiratory rate of 16 breaths/min, and heart rate of 72 bpm. Urinalysis shows leukocyte esterase 1+, protein trace, and blood 3+. The microscopic examination reveals 5-10 WBCs/hpf and 20-30 RBCs/hpf. An abdominal ultrasound demonstrates multiple, bilateral fluid collections within the kidneys.
Question
What, if any, is the most likely underlying renal pathology?
Answer:
The correct answer would be - polycystic kidney disease.
Explanation:
The given clinical picture or information suggests that it is most probably an infection that takes place in one or both the kidneys and leads to the setting of polycystic kidney disease.
The given symptoms such as abdominal or flank pain, recurrent UTIs, blood in the urine, and hypertension are characteristic symptoms of polycystic kidney disease. Cystic lesions found on abdominal ultrasound are a confirmation of the disorder.
The key disease of this polycystic disorder is Goodpasture syndrome which shows symptoms of both glomerulonephritis and pulmonary hemorrhages, and medullary sponge kidney disorder.
I need help with that
Answer:a
Explanation:
Anaerobic prokaryotes use what
to obtain energy.
Answer:
they use anaerobic respiration in the absence of oxygen
describe how alleles and genes are created
Answer:
Look at explanation
Explanation:
An allele is one of two or more versions of a gene. An individual inherits two alleles for each gene, one from each parent. If the two alleles are the same, the individual is homo-zygous for that gene. If the alleles are different, the individual is hetero-zygous.
Hope this helps!
what type of limiting factor affects a large population more than it affects a small population?
Answer:
density dependent limiting factor
Explanation: