Please help me thank you
Answer:
The punnet square would look like this.
R R
R RR RR
B RB RB
Which model represents a DNA molecule?
Answer: The answer is D because the way they line up!!
Explanation:
The model that gives a true representation of a DNA molecule would be the 4th model.
What is the structure of DNA?According to Watson and Crick, the DNA is a double strand molecule with each strand twisting around one another to form a ladder-like, double helix structure.
Also, there is a complementarity of nucleotide bases such that Adenine (A) always pairs with Thymine (T) while Guanine (G) always pairs with Cytosine (C).
Thus, model 4 ticks all the characteristics of a typical DNA molecule.
More on DNA can be found here: https://brainly.com/question/264225
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Which of the following is not a property of persistent organic pollutants (POPs)?
a.
They have carbon-based molecular structures.
b.
They do not break down easily in the environment.
c.
They are insoluble in fat.
d.
They are polluting and toxic.
Answer: C
Explanation:
got a 90 on the quiz but correct if wrong
for every girl
BBB
GG
BBB
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BBBB
GGGG
GGBB
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GGGGGB
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Reset
Next Question
what
Explanation:
what you talking about
The ____ principle of decision support system takes into account time and space factors when a farmer makes a decision.
Answer:
Explanation:
Fertilization decision support system.
help me out with these please
:):)
Answer: i would say b for the first one!
2nd pic: i would say c!
3rd pic: b or c!
Explanation:
omg this is what i think they are! sorry if its wrong!
Answer:
1st: b
2nd: c
3rd: b
I hope this helped!~ Have a great day~
~Keiji❤
Please remember to eat, you are valid and someone loves you~!
Select the correct statement(s) about angiosperm seeds. Select all that apply. Select all that apply. The embryo in an angiosperm seed is the offspring of the sporophyte plant. All structures in an angiosperm seed are diploid. An angiosperm seed contains structures contributed by three generations of plants.
Answer:
An angiosperm seed contains structures contributed by three generations of plants.
Explanation:
The spermatophytes, also known as phanerogams, represent a group of seeded plants that have developed special structures for reproduction. This group (spermatophytes) consists of gymnosperms or 'naked seeds', and angiosperms or 'enclosed seeds'. The seed is an organ generated from the ovule after fertilization by the pollen grain, which gives rise to a seedling during the process of germination. In flowering plants, seeds are generated by a process of double fertilization and consist of three tissues: 1-an embryo (generally diploid) formed by repeated mitotic division of the zygote cell, 2- an endosperm tissue (generally triploid, 3n) that nourishes the embryo during its growth, and 3-a seed coat generated from the integuments of the ovule. In angiosperms, seeds consist of three generations: the gametophyte that provides nutrients to the embryo, the embryo, and the seed coat which is generated from the parental tissue (sporophyte).
How do igneous rocks provide evidence about the Earth?
Answer:
pls mark brainlest The chemical composition of an igneous rock tells us about the origin of the magma, beginning with which type of rock melted within the earth to form the magma in the first place, and how deep in the earth the melting occurred. Once magma has formed inside the earth, its composition may be modified.
What alleles are inside the grid box
Answer:
In most sexually reproducing organisms, each individual has two alleles for each gene (one from each parent). This pair of alleles is called a genotype and determines the organism's appearance, or phenotype.
HELP PLEASE HURRY
PLEASE TELL ME THE SITE YOU GOT THE FACTS FROM
List 7 facts about a meteoroid
Answer:
https://solarsystem.nasa.gov/asteroids-comets-and-meteors/meteors-and-meteorites/overview/?page=0&per_page=40&order=id+asc&search=&condition_1=meteor_shower%3Abody_type
Explanation:
Answer:A meteoroid is a chunk of space rock. If it burns up while entering the Earth’s atmosphere it’s called a meteor and if a piece lands, it’s called a meteorite.
Millions of meteoroids travel through the Earth’s atmosphere every day, but most are small and burned up quickly. Very few reach the ground.
When a meteoroid hits the atmosphere of the Earth, they can be travelling as fast as 130,000 mph (209,215 km).
The blast caused by the shockwaves of the Chelyabinsk meteor in Russia was picked up by infrasound sensors on the other side of the world. Below is a video of that meteor.
The buying and selling of meteorite pieces in South Africa is illegal.
A meteorite that is seen or detected as it lands are called “falls”, with those that are discovered later being referred to as “finds”.
Meteoroids more than 10 metres in diameter are classified as asteroids.
Of the 500 estimated meteorites that reach the ground every year, only five or six are recovered for scientists to study.
Explanation HEHE
What is the name of the person who studies everything to know about “witches”?
The information from the brain travels down to the effector site through
A) Sensorial neuron
B) Interneuron
C) Motor neuron
D) Oligodendrocyte
Answer:
Motor neuron
Explanation:
Motor Neurons (effector neurons) relay information from the CNS to other organs terminating at the effectors. It takes the information from the brain to the effector.
Hope it helped!!!
Question 4 (2 points)
(03.05 LO
Which statement is true? (2 points)
Geothermal power is generated from moving water
Oil, a renewable resource, is processed to make
jet fuel
Wind power can turn turbines to generate electrical power
d
Propane, a renewable resource, is used in some heating systems.
Answer:
B is true
i took the test
Oil is a renewable energy resource. It is processed to make jet fuel. Thus, the correct option is B.
What are renewable energy resources?Renewable energy is the energy which is derived from natural sources which are replenished at a higher rate than they are being consumed. Sunlight and wind are the two such sources of energy which are constantly being replenished from the planet. Renewable energy sources are present in plentiful amounts and are found all around us.
Jet fuels are the energy fuels which are typically made by the blending and refining of various crude oils such as petroleum distillation products including naphtha, gasoline, or kerosene in order to meet the specific military or commercial specifications required.
Therefore, the correct option is B.
Learn more about Energy resources here:
https://brainly.com/question/504027
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What are the effects on the ecosystem and what is being done to help.
Answer:
Climate change not only affects ecosystems and species directly, it also interacts with other human stressors such as development. Although some stressors cause only minor impacts when acting alone, their cumulative impact may lead to dramatic ecological changes.
Explanation:
During the summer months, glaciers at the poles melt, delivering fresh water to the ocean. What does this do to salinity?
Question 3 options:
lowers salinity
raises salinity
it does not change the salinity
Answer:
Im almost positive its A.
Explanation:
if im wrong sorry
Answer:
lowers salinity i think o am correct
will mark brainliest if correct
if all the green plants were removed from the community how might the flow of energy be effected
what is the base-pair rule for a DNA strand matching an RNA strand?
Explanation:
The base pairing of guanine (G) and cytosine (C) is just the same in DNA and RNA. So in RNA the important base pairs are: adenine (A) pairs with uracil (U); Guanine G() pairs with cytosine (C).
The Chargaff rule only holds true for DNA. Base pairing doesn't take place since RNA is single-stranded. Consider a DNA strand.
What make base pair unique in DNA and RNA?Compare the two DNA strands' base-pair rules to this one. Since uracil is absent from DNA, T and A complement one another. In contrast, T bonds with A and A bonds with U in a DNA/RNA match.
Important: It serves as the foundation for base pairing. This rule can be used to both determine the DNA strand length and if a base is present in the molecule.
Adenine and thymine are always equal, and cytosine and guanine are also always equal, allowing us to calculate the percentages of each base.
It assists in figuring out the makeup and structure of DNA in various species. It is constant within a species.
Therefore, the base-pair rule for a DNA strand matching an RNA strand.
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Which of the following best illustrates a natural process acting as a constructive force?
A.
A river eroding soil during a flood.
B.
Acid rain breaking down the surface of a rock.
C.
A glacier weathering a mountainside.
D.
Wind depositing sand to build up sand dunes.
Answer:
D
Explanation:
because wind is depositing sand to build
Wind depositing sand to build up sand dunes best illustrates a natural process acting as a constructive force. Therefore, the correct option is D.
What is a constructive force?Constructive forces are the forces that are responsible for the formation of new landforms on the surface of the earth, such as deposition, earthquake, volcanoes etc.
Wind depositing sand to build up sand dunes is the natural process depicting the constructive force because sand dunes are formed by constructive forces that add sediment to an area, in this case, wind depositing sand.
Option A is incorrect because river erosion is a destructive force that wears away soil and rock, rather than building it up. Option B and option C are also destructive forces. Therefore, the correct option is D.
Learn more about constructive force, here:
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What was difficult about measuring the 3x5 card? Why?
Answer:
can you give me some answers
Explanation:
The endocrine system and the nervous system both send messages that control processes in other parts of the body. Which is an example of a process caused mainly by the endocrine system?
A. developing allergies to pollen, pet hair, or specific foods
B. regulating growth and functions of certain body organs
C. improving your skills at a sport or other physical activity
D.pulling your hand away when you touch a hot stove
Which picture above accurately shows an example of the circulatory organ system in a zebra?
A. figure 2
B. figure 3
C. figure 4
D. figure 5
what kind of animals that has secrete chemicals to defend themselves??
Answer:
sea hares, cuttlefish, squid and octopuses
Explanation:
They give themselves a last chance to escape by distracting their attackers,; to do this, they eject a mixture of chemicals, otherwise confuse predators.
Hope that helps
in what part of the cell cycle is DNA replicate
Answer:
Explanation:
S phase
The S phase of a cell cycle occurs during interphase, before mitosis or meiosis, and is responsible for the synthesis or replication of DNA.
Answer:
S phase, S phase is the period during which DNA replication occurs.
List three properties of water that you know about from everyday living.
Answer:
heat, gas(condensation), Adhesion
what methods do you use to collect crime data
Answer:
GoogIe
Explanation:
Crime data collected through the Unif orm Crime Reports (UCR), the National Incident-Based Reporting System (NIBRS), and the National Crime Victimization Survey (NCVS) are used by Congress to in form policy decisions and allocate federal criminal justice funding to states.
When the temperature of the air increases, the speed of the molecules that make up air decreases. true or false?
Next,
_________________ can enter and leave a closed system through radiation and conduction.
A. Matter
B. Energy
C. Molecules
D. Mass
Please help, 6th grade!
Differentiate between cell mass and cell number
Answer:
Measurement (Count) of Cell Numbers:
1. Breed Method:
A known volume of microbial cell suspension (0.01 ml) is spread uniformly over a glass slide covering a specific area (1 sq. cm). The smear is then fixed by heating, stained, examined under oil immersion lens, and the cells are counted.
Customarily, cells in a few microscopic fields are counted because it is not possible to scan the entire area of smear. The counting of total number of cells is determined by calculating the total number of microscopic fields per one square cm. area of the smear.
Answer:
cell mass: The total mass of all the cellular elements in the body which constitute all the metabolically active tissue of the body
Cell number: The sequence of numbers or characters, that when dialed, connects to a particular cellular telephone
Explanation:
HELPPPPPPPPPPPPpbdishejwieieie
Answer:
B
Explanation:
which single factor would most likely account for this trend?
Answer:
muscles?
Explanation:
what trend? can explain or this not serious Question?
When your body begins to get too hot, it begins to sweat in order to try and cool itself down in order to stay at a temp of around 98 degress. This is an example of what?
1. Cellular Respiration
2. Thermodynamics
3. Homeostasis
Answer:
it calms down and gets to get cool again
Answer:
2
Explanation:
thermoregulation is process that allows your body to maintain its core internal temperature
There is a moth in England called the peppered moth. Before Britain's industrial revolution, these moths were usually salt and pepper colored. Because of their coloring, they blended in well with the tree trunks on which they tended to rest. The coloring helped them hide from the birds that ate them. During the British industrial revolution, industry expelled a lot of soot from the burning of coal into the environment. This soot darkened the tree trunks, and it was noted that black-colored moths were becoming predominant. The idea is that with soot in the environment, black-colored moths fared better than light-colored moths. There is some debate as to whether this is actually the case or not, but for the sake of this question, let's assume it is. In your own words, explain the concepts from the four observations discussed in 12.2 using the moth as an example. In other words, how does the moth illustrate the first observation, the second observation, etc.
Answer:
The correct answer is - natural selection in moths.
Explanation:
This is an event of historical Industrial melanism, an event caused by the process of natural selection. Due to this event, the evolution of dark body colors in moth species that present in such habitats become black by industrial soot.
Peppered moths in the UK were pale grey before the revolution of industries, But after the habitat become polluted with soot from coal‐fired industries, melanic snd become numerous and spread to other regions.
After the century the pollution comes down and the pale phenotype becomes the predominant form.