Answer:
Created by Rosalind Franklin using a technique called X-ray crystallography, it revealed the helical shape of the DNA molecule. ... Watson and Crick realized that DNA was made up of two chains of nucleotide pairs that encode the genetic information for all living things.
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Answer:
Created by Rosalind Franklin using a technique called X-ray crystallography, it revealed the helical shape of the DNA molecule. ... Watson and Crick realized that DNA was made up of two chains of nucleotide pairs that encode the genetic information for all living things
Explanation:
Hope it will help you
1. a) Name a set of homologous structures.
b) Two species have homologous structures. What do these homologous structures show about the evolutionary relationship between the two species?
Which type of neurons are responsible for carrying signals from the sensory neurons to the motor neurons?
A. Relay neurons
B. Sensory neurons
C. Transmission neurons
D. Motor neurons
Answer:
A. Relay neurons
Explanation:
Neurons or nerve cells are one of the cell types contained in the nervous system. Neurons transmit or carry nerve signals. There are three major types of neurons namely; motor neurons, sensory neurons, and interneurons.
Specifically, interneurons or relay neurons are types of neurons that connects the sensory and motor neurons i.e carrying signals from the sensory neurons to the motor neurons?
What is a characteristic of all species? O A. They breed with other species. B. They use asexual reproduction to increase their genetic variation. O C. They have genetic variation. D. They can develop new genetic traits if they reproduce sexually.
Answer:
B it think
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How will the concentration of H+ and OH- ions change when a substance with a pH of 3.2 is added to water?
Both H+ and OH- will increase
Both H+ and OH- will decrease
H+ will increase and OH- will decrease
H+ will decrease and OH- will increase
Answer:
H+ will decrease and OH- will increase
what is function of vacuole.
Explanation:
vacuoles help maintain water balance.
Explanation:
A vacuole is a membrane-bound cell organelle. In animal cells, vacuoles are generally small and help sequester waste products. In plant cells, vacuoles help maintain water balance.
In general, the functions of the vacuole include:
Isolating materials that might be harmful or a threat to the cell.
Containing waste products.
Containing water in plant cells.
Maintaining internal hydrostatic pressure or turgor within the cell.
Maintaining an acidic internal pH.
Containing small molecules.
What is one difference between primary and secondary succession? Primary succession can start from bare rock; secondary succession starts from organic soils. Primary succession occurs in habitats with rich organic soil; secondary succession does not. Primary succession is always caused by human disturbances; secondary succession is not. Trees are often the first colonizing species in primary succession, but trees are never the first species in secondary succession.
Answer:
Primary succession can start from bare rock; secondary succession starts from organic soils.
Explanation:
Primary succession is when the growth of pioneer species rake place in an bare and new environment. The secondary succession is when the growth of species take place due to the disturbances in the primary succession. The secondary succession is based on fire, floods, or any man-made disturbances in the region.please answer this:)) :((
Answer:
Winter in the Northern Hemisphere begins December 21 or 22, when the North Pole is tilted a full 23.5° away from the sun. This day is known as the winter solstice. In June, in the northern hemisphere summer, the Sun's rays — and warmth — reach all the way to the north pole.
In June, in the northern hemisphere summer, the Sun's rays — and warmth — reach all the way to the north pole. In December, in the northern hemisphere winter, the north pole is tilted away from the incoming sunshine.
Explanation:
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Magnetic fields on the sun are produced by the sun’s uneven rotation and:
A. The movement of sunspots on the sun’s surface.
B. The movement of gases in the corona.
C. Gases in the convective zone.
D. Gases in the radiation zone.
Answer:
The correct answer is - C. Gases in the convective zone.
Explanation:
The heat of the sun causes the atoms to be ionized and create a charged gas known as plasma. These gases or plasma are move in the convective zone with the uneven and rapid rotation of the sun.
This creates the electric currents due to the charge in gases which ultimately create magnetic fields. Sun's rotation causes the sun's overall magnetic field to have some degree of order and to be somewhat stable over time.
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Answer:
4 one answer
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hello.................................................,.....what's a vaccine.thankyou
A vaccine is a medical material that mimics the pathogen, but in a harmless way. When our body's immune fights it off, it remembers how to fight the real pathogen when it enters our body. So, it protects us from diseases.
Answer:
A vaccination is a medical substance that mimics a pathogen in a non-harmful way. When our immune system defeats it, it recalls how to combat the genuine infection when it enters our system. As a result, it shields us against sickness.
Explanation:
I hope this helps!
list two importance of gravitational force?
Explanation:
i .The gravitational force of the earth keeps us bound to the earth.
ii .Gravitational force between earth and sun makes the earth move around the sun. G
Answer:
1. gravity holds the planets in orbit around the sun and keeps the moon in orbit around the earth.
2. moons gravitational force to earth pulls the ocean tides, without that the land on earth would sink due to tsunamis and no control over the currents.
Which of the following correctly describes a way in which Earth’s atmosphere interacts with the geosphere?
Answer:
It provides a medium for cycles that provide nutrients to living organisms.
What are the reactants in the following chemical reaction?
C6H12O6 + 6 O2 → 6 CO2 + 6 H2O
A. Carbon dioxide (CO2) and water (H2O)
B. Carbon dioxide (CO2) and oxygen gas (O2)
C. Glucose (C6H12O6) and oxygen gas (O2)
D. Glucose (C6H12O6) and water (H2O)
Answer:
its (A)
Explanation:
These reactions, which are described in detail in the chapter Cells and Energy, break down the simple sugar glucose (C6H12O6). The process uses oxygen and glucose and results in carbon dioxide (CO2), water (H2O), and usable energy. Oxygen and glucose are the reactants. Hope it helps you.... I tried my best.pls mark me as branliest really need it pls pls pls.
Help please ASAP, easy question
A species slowly loses numbers and goes
through natural selection until no individuals
are left. This describes what type of
extinction?
A evolved extinction
B. background extinction
C. mass extinction
D. endangered extinction
\Which best describes dynamic equilibrium?
There is a difference in concentration on either side of the cell membrane.
There is an uneven distribution of particles inside and outside the cell.
Particles are moving into and out of the cell, but their concentrations remain stable.
A concentration gradient is forcing water out of the cell and particles into the cell.
Answer:
The answer is C - Particles are moving into and out of the cell, but their concentrations remain stable.
Explanation:
Particles are moving into and out of the cell, but their concentrations remain stable.
Particles are moving into and out of the cell, but their concentrations remain stable.
What is dynamic equilibrium?Dynamic equilibrium is a state of balance in which two or more opposing forces or processes are in constant motion, resulting in a stable overall state. In biology, dynamic equilibrium often refers to the balance of substances, such as ions or gases, between two or more compartments, such as inside and outside of a cell.
This balance is maintained by the movement of these substances across a semi-permeable membrane in response to concentration gradients, pressure, or other driving forces. The rate of movement into and out of the compartment is equal, resulting in no net movement of substance and a stable concentration on both sides.
Dynamic equilibrium is an important concept in understanding the maintenance of homeostasis and the proper functioning of biological systems.
Learn more about dynamic equilibrium, here:
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Question 10 of 10
Which best describes the flow of genetic information?
A. Genetic information is carried only by DNA.
B. Genetic information flows from DNA to RNA to protein.
C. Genetic information flows from gene to allele to protein.
D. Genetic information cannot be transmitted outside the nucleus.
Answer:
B. Genetic information flows from DNA to RNA to protein.
Explanation:
The central dogma of biology describes the flow of genetic information within a biological system. This dogma is often stated as "DNA makes RNA, and RNA makes protein."
Fruit trees in a forest are an important habitat for a bird species and were historically a major source of food for a rodent species. Over time, the rodent species shifted their feeding behavior from fruit trees to nut trees. As rodent behavior changed, the density of fruit trees decreased, which caused significant decreases to the bird population. What kind of effect did the change in rodents exert on bird population size?
Answer:
The bird population might have to migrate in search for food or may decline in numbers.
Explanation:
This is a concept of primary producers that is trees and secondary consumers that is mouse and bids. Due to the decline in raw material available the mouse population declines and this also affects the secondary consumers that are birds of prey like hawks, owls etc.Which level of organization includes all the other levels of organization? organ system organism tissue
cell
Answer:
organ system level of organization
cell>tissue >organ >organ system >multicellular organism
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in most stems,the epidermis has pores called..........
Answer:
do you mean Stomata?
those pores are called stomata
Answer:
stomata
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5.Can you write which kind of food items are not digested easily when gall bladder of a person is removed surgically? Why?
Answer:
hi
Explanation:
no answer please try let us
Answer:
hard or solid ofood items are not digested easily when gall bladder of a person is removed surgically.it is because gall bladder is responsible to make a food in a small particle.
What are sporophytes and gametophytes?
Answer:
A. Two different forms a plant can have
Explanation:
Higher plants, lower plants (mosses) and ferns undergo a life cycle called ALTERNATION OF GENERATIONS. In this life cycle, they switch between a haplontic and diplontic forms of life.
The haplontic (haploid) life form which produces haploid (n) gametes is called GAMETOPHYTE while the diplontic (diploid) life form which produces the spores that germinates is called SPOROPHYTE. Hence, sporophyte and gametophyte are two different forms a plant can have.
what is photosynthesis
Answer:
Photosynthesis is where the plants take in food through the cells! (such as light and carbon dioxide.)
Explanation: The process by which green plants and some other organisms use sunlight to synthesize foods from carbon dioxide and water. Photosynthesis in plants generally involves the green pigment chlorophyll and generates oxygen as a byproduct.
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What is an enzyme?
A. Along chain of amino acids
B. A protein that speeds up chemical reactions in a living thing
C. A molecule that carries genetic information
D. The specific molecule that binds to a catalyst
Answer:
my answer is B
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which of the following is a double layer of phospholipds with proteins
how does the presence of an acid in a water solution affect the pH of the solution
Write two functions of neurons.
Answer:
hope it helps you
Explanation:
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[tex]\boxed{ \sf{Answer}} [/tex]
↦Any 2 functions of the neuron can be :-
They conduct electrical impulses thus helping to transmit messages to the brain, glands, muscles or other nerve cells.They are responsible for receiving sensory input from the external world, for sending motor commands to our muscles, and for transforming and relaying the electrical signals at every step in between.ʰᵒᵖᵉ ⁱᵗ ʰᵉˡᵖˢ
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How many kingdoms are there in the domain Bacteria?
O A. 4
B. 3
C. 2
O D. 1
SUBMI
Answer:
One kingdom. Domain bacteria has one kingdom, kingdom eubacteria
Explanation:
This is the answer I hope this helps you out!
la unica fuente de los aminoacidos esenciales son los alimentos y su anotemcion requiere de un gran gasto emergetico.si uma persona no consume estos aminoacidos se vera afectado el paso
Answer:
Los aminoácidos son compuestos orgánicos que se combinan para formar proteínas. Los aminoácidos y las proteínas son los pilares fundamentales de la vida.
Cuando las proteínas se digieren o se descomponen, los aminoácidos se acaban. El cuerpo humano utiliza aminoácidos para producir proteínas con el fin de ayudar al cuerpo a:
Descomponer los alimentos
Crecer
Reparar tejidos corporales
Llevar a cabo muchas otras funciones corporales
El cuerpo también puede usar los aminoácidos como una fuente de energía.
What is the function of nervous tissue for transport within an organism?
a) To dilate your blood vessels so that you will faint
b) To construct your blood vessels so that you will pass out.
c) To send signals to the blood vessels to constrict or dilate, to decrease or increase blood flow, respectively.
d) To send signals to the guard cells to swell and close the stomata or constrict to open up the stomata
Answer:
C
Explanation:
To send signals to the blood vessels to constrict or dilate , to increase or decrease blood flow respectively.
What is the purpose of ethical guidelines for the handling for experimental subjects
Answer:
The purpose of ethical standards for the treatment of experimental subjects is to assure the safety and well-being of all living things included in the study. Human rights, animal welfare, legal compliance, conflicts of interest, and health standards are all topics covered by ethical guidelines.
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