Answer: D.
Explanation:
HOPE THIS HELPS! ^^
Natural processes cause living things on Earth to change over time best summarizes the theory of evolution.
What is evolution?
This is the process of change in the characterstics of a species over several generations.
What is natural selection?
It is a mechanism of evolution in which organism that are more adaptable to to environment survive and pass there genes to the next generation.
To know more about evolution here
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Burning oil and coal adds ______ to the atmosphere.
Answer:
carbon dioxide
Explanation:
because when these things burn they produce many harmful gases which harm the environment and cause pollution
The Punnett square shows the genotype for scale color in a species of lizard where color is inherited via incomplete dominance. Y
is the allele for yellow
scales, and is the allele for red scales. What percent of the offspring will have yellow scales?
R R
Y
?
?
R?
?
?
A 2/4 -50% will have yellow scales.
4/4 - 100% will have yellow scales.
1/4 - 25% will have yellow scales.
0 0/4 - 0% will have yellow scales.
Answer it is 25 percent
Explanation:
Select all the true statements about density: (hint - there are 4 correct statements)
d=m/v (denisty equals mass divided by volume)
density is measured in meters
density is the ratio of an objects mass to its volume
objects that are heavy for their size are very dense
objects that are heavy for their size are not dense
density is how much matter is in a given amount of space
all dense objects will float
(there is more then 1 answer by the way)
answer
2nd is wrong
5th is wrong
last is wrong
someone help. ill give brainliest to the correct person. image below.
Answer:
B.
Explanation:
When the salinity in an ocean has decreased what action has taken place.
Answer:
water had been added
Explanation:
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Carbon sinks are "stopping up"(no longer able to absorb CO^2)because of _________________and ___________________
Answer:
0 and 2
Explanation:
What is true of mutations?
They are always harmful.
They give us superpowers.
They are always helpful.
O
O
They cause the cells to make the wrong protein.
Answer:
C. They cause the cells to make the wrong protein.
Explanation:
A genetic mutation is an alteration of a particular base pair or nucleotide sequence in the genome. Mutations, since they alter the base pair, can change genes and their expression.
Choose all the answers that apply.
Which of the following would be carried by suspension?
clay
large rocks
small pebbles
silt
sand
Answer:
clay
slit
Explanation:
What is the natural source of energy in Mars, please help
Answer:
The power source is called a "Multi-Mission Radioisotope Thermoelectric Generator" or MMRTG for short. The MMRTG converts heat from the natural radioactive decay of plutonium into electricity. This power system charges the rover's two primary batteries. The heat from the MMRTG is also used to keep the rover's tools and systems at their correct operating temperatures.
Answer:
the sun
Explanation: the sun proides the heat energy
A change in the nucleotide sequence
produced during DNA replication
DNA is a dynamic and adaptable molecule. As such, the nucleotide sequences found within it are subject to change as the result of a phenomenon called mutation. Depending on how a particular mutation modifies an organism's genetic makeup, it can prove harmless, helpful, or even hurtful.
Down syndrome is one of the most common genetic disorders, occurring in 1 out of 800 births. What percentage of the population would have Down syndrome?
Are gender traits completely a result of societal expectations?
[tex]\huge\star{\underline{\mathtt{\red{A}\pink{N}\green{S}\blue{W}\purple{E}\orange{R}}}}\star[/tex]
No. Gender traits in humans are largely determined by biophysical processes. There seems to be a vocal political faction that is trying to convince people in the name of liberty and equality that gender traits are completely learned, and therefore arbitrary.
But this claim disagrees with scientific evidence. In general, boys play more with cars and girls play more with dolls not because their parents are perpetuating outdated gender stereotypes, but because their brain is telling them to.
This fact does not mean that boys have to play with boy toys, or that boys who play with dolls aren't really boys. It is just a scientific observation about average behavior and its link to fetal development
Natural selection causes what to occur?
1. evolution
2. survival of the fittest
The law of independent assortment
3. Mendel's law of segregation
4. genetic drift
Answer:
(1.) Natural selection causes evolution to occur.
Explanation:
Over time, the naturally occurring variation within a population that arise from mutations, alter in frequency. Some of these variants or traits, may confer advantages to certain organisms, allowing them to reproduce and pass on genes more successfully. These traits become fixed within the population, and eventually the individuals evolve to form a species.
Natural selection, acts on evolution, for or against traits. It ensures that individuals with traits well-suited to their environments and reproductive fitness survive.
Answer:
1. evolution
Explanation:
Natural selection causes populations to become adapted, or increasingly well-suited, to their environments over time. Natural selection depends on the environment and requires existing heritable variation in a group.
A scientist is conducting research about all the plants and wildlife in the Mojave Desert as well as the desert’s resources, such as water and soil. The scientist is studying
Answer:
An ecosystem
Explanation:
Answer:
D. an ecosystem
Explanation:
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If animal droppings spread seeds then when spreads it also then which spreads it faster?
A. Animal droppings.
B. Wind.
Answer: Animal droppings
Explanation:
What is succession and what are the steps to succession? Why is it important?
Answer: Succession Planning is essentially planning for and executing smooth transitions of leadership positions. This includes recruiting new talent, executive search, selection assessments, onboarding the new leader, and successfully transitioning the new leader in and the old leader out.
What does ambulocetus translate to?
Ambulocetus (meaning "walking whale") is an early cetacean with short limbs and large feet used for swimming. Along with other members of Ambulocetidae, it is a transitional fossil that shows how whales evolved from land-living mammals.
Answer:
Walking whale that swims
Explanation:
its a cetacean with short limbs and large feet used for swimming
According to the passage, what causes mutations during protein synthesis?
A. A wrong base becomes a permanent part of a new DNA sequence.
B. Most mutations happen spontaneously as DNA replicates itself.
C. A great many mutations occur due to chemicals in the environment.
D. Mutations do not occur during the process of protein synthesis.
Answer:
d.
Explanation:
Suggest two specific reasons why determining the cause of death can sometimes be difficult.
Answer:
1. The person has been dead for a while so the body is old.( Decomposed)
2. The manner or cause of death (injuries)
Explanation:
1.
Determining the cause of death could be difficult if the person has been dead for sometime. This is going to make the body to be more decomposed since the body has become old.
2.
Another reason is if the cause of death is from an accident and the dead person sustained great injuries. The condition of the body would be poor and this is going to make examination difficult.
Which are advantages of using renewable resources? Choose all that apply
Answer:
Generating energy
Explanation:
that produces no greenhouse gas emissions from fossil fuels and reduces some types of air pollution.
Diversifying energy supply and reducing dependence on imported fuels
18 points! A BRAINLY IF U ARE CORRECT> QUESTION: When you open the door to a refrigerator for a minute, what happens? Also, Expain your answer.
A. Thermal energy in the air outside the refrigertor is transferred to the inside of the refrigerator.
B. Thermal energy in the refrigerator is transferred to the air outside the refrigerator.
C. The temperature of the air inside the refrigerator decreases.
D. The teperature of the air just outside the refrigerator increase.
Answer:
The Answer is A
Explanation:
Explanation is the thermal heat energy from the outside is transferred by diffusion to the inside of the fridge applicably making the inside hotter and the outside colder in the immediate area.
23. A PCR reaction is performed, and the negative control demonstrates the presence of a detectable number of PCR product (amplicons) by capillary electrophoresis. What is the most likely cause?
Answer:
Contamination of the control sample (negative control) with DNA
Explanation:
The Polymerase Chain Reaction (PCR) is a technique widely used in molecular biology laboratories to amplify a target DNA fragment using primer pairs and DNA polymerase. In PCR experiments, it is imperative to include both positive and negative controls. The positive control refers to the amplification of a PCR product (amplicon) of known molecular size during PCR reaction in order to ensure the correct molecular weight of the target DNA fragment. The negative control refers to the inclusion of a sample without DNA in order to ensure that no contamination with DNA has occurred in the other samples.
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Which of the following increases soil acidity?
planting acid-loving plants
adding compost
adding aluminum
acid rain
Answer:
acid rain
Explanation:
Answer: The correct answer is acid rain
Explanation: This answer has been confirmed correct.
What are paired chromosomes called?
Answer:
Humans have 23 pairs of chromosomes--22 pairs of numbered chromosomes, called autosomes, and one pair of sex chromosomes, X and Y. Each parent contributes one chromosome to each pair so that offspring get half of their chromosomes from their
Explain why the frequency of the tusklessness trait is increasing in the African elephant population. Justify your answer using the principles of natural selection.
Answer:
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Explanation:
semester and the next week yea
Scientists have discovered that there are reproductive isolating mechanisms that can stop a population from interbreeding and possibly lead to the formation of a new species. What is this process called
Answer:
Polyploidy
Explanation:
The isolating mechanism that is capable of stopping a population from interbreeding, possibly leading to speciation is polyploidy.
Polyploidy is a condition in which a species of an organism will have multiple, instead of a diploid, chromosomal set as a result of an error during meiosis.
Non-disjunction during meiosis can make a gamete have a diploid number of chromosomes in the place of a haploid chromosome. A 2n gamete fusing with an n gamete will result in a triploid organism, 2n plus 2n gametes will result in a tetraploid organism, etc.
If the extra chromosomal set is from the same species, such polyploidy is termed autopolyploidy, otherwise, it is termed allopolyploidy. Having extra sets of chromosomes has the capacity to make an organism to be reproductively incompatible with normal diploid organisms of the same species. However, polyploid organisms can either self-pollinate or cross with another polyploid organism, a process that can lead to sympatric speciation.
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(This is 7th grade science).
Answer:
Explanation:
skin: y, n, n, n , animal
neurn: y, y, n, n , nonliving
sand: n,n,n,n nonliving
maple leaf y, y, y, y, plant
blood: y, y,n,n animal
e.coil: y, n, n, n bacterial
root hair: y, y, n, n, animal
6CO2 + 6H20 602 + C6H1206
Molecular Energy in Photosynthesis
Name of
Molecule
Chemical
Formula
Amount of Energy per
Molecule (in kJ per mole)
Carbon dioxide
CO2
799
Water
H20
467
Oxygen
O2
495
Glucose
C6H1206
9,467
Which statement correctly describes the flow of energy in photosynthesis?
A Photosynthesis releases energy when carbon dioxide and water combine to form glucose molecules.
B Photosynthesis releases energy when the reactants rearrange and form the bonds in the products,
Photosynthesis stores energy because energy is released when glucose is formed from carbon dioxide and water.
D Photosynthesis stores energy because more energy is stored in glucose than it is in carbon dioxide or water.
Answer:
Photosynthsis stores energy because more energy is stored in glucose than it is in carbon dioxide or water is the correct answer.
Explanation:
A widow's peak is dominant over a straight hairline.
The genotypes of the offspring are WW, Ww, ww, and
ww.
A widow's peak is dominant over a straight hairline.
The genotypes of the offspring are WW, Ww, ww, and
ww.
What are the phenotypes of the offspring?
2 widow's peak, 2 straight hairline
3 widow's peak, 1 straight hairline
1 widow's peak, 3 straight hairline
4 widow's peak, 0 straight hairline
Answer:
I think its
C) 1 widows peak 3 straight hairline
Explanation:
Answer:
I believe it is a.
Explanation:
This is becuase 2 are saying that it is dominant for widows peak. And two are saying that straight is dominant.
help please that would be great
Answer:
B or E
Explanation:
B and E are selected by man-kind not nature itself.