Answer:
Figure 7 The number of DNA molecules in a chromosome: (a) a chromosome prior to replication contains a single DNA molecule; (b) a chromosome that has been replicated and consists of two chromatids, each comprising a single DNA double helix molecule.
Explanation:
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:
What are two definitions of evolution, and why does evolution occur?
Answer:
the gradual progression of a species
Explanation:
as a species migrates it requires new adaptions to better survive and thrive in the new environment.
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.
Which describes the net free water movement between the blood vessel and matrix?
a) Into vessel
b) In equilibrium
c) Out of vessel
Answer:
Out of vessel
Explanation:
the little video/diagram shows the vessles moving from inside to outside
how many approaches are there in psychology what are they?
what happens to the carbon and oxygen from CO2 after it has been removed from the air by the plant via photosynthesis
Answer:
Plants absorb carbon dioxide from the air and use it to feed themselves in the process called photosynthesis. The carbon dioxide, through tiny pores called stomata, reaches the leaves of the plant. ... The factory emits Oxygen, or O2, into the ambient air until the process is finished.
Explanation:
After the removal of CO2 from air by the plant, then Carbon would be absorbed by plant, Oxygen will be emitted into the air.
Photosynthesis can be regarded as the process which involve the use of sunlight , carbon dioxide and water by plant, so that to oxygen can be created as we as energy in the form of sugar.After the absorption of the CO2 from atmosphere by plant through the stomata, the plant convert it into carbon and oxygen, and the oxygen will be released to the air.Therefore, the process is called Photosynthesis
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please what is the adaptive behaviour of a mosquito
Summarize how plants get energy
Answer:
Plants convert energy from sunlight into sugar in a process called photosynthesis.
Explanation:
Photosynthesis uses energy from light to convert water and carbon dioxide molecules into glucose (sugar molecule) and oxygen
Answer:
Plants convert energy from sunlight
Explanation:
Natural selection is when
decides who survives and who doesn't?
Answer:
Nature
Explanation:
Natural selection is when nature decides who survives and who doesn't. Therefore, option A is correct.
What is natural selection?The process through which populations of living things adapt and change is known as natural selection. A population's members are naturally varied, which means that they are all distinctive in some ways. This variety indicates that some people have characteristics that are more environment-appropriate than others.
For instance, giraffes' long necks have allowed them to consume plants that other animals cannot.
Natural selection happens when people with a particular genotype have a higher chance of surviving, reproducing, and passing on their alleles to the following generation than individuals with a different genotype. Hence, option A is correct.
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In the last step of DNA replication, what does
the DNA polymerase do?
Answer:
Enzymes known as DNA polymerases are responsible creating the new strand by a process called elongation. ... DNA polymerase then adds pieces of DNA, called Okazaki fragments, to the strand between primers. This process of replication is discontinuous as the newly created fragments are disjointed.
Explanation:
Please hurry and I will give out the brainliest answer!
Answer:
the apples will be red.
Explanation:
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
A ______________ stain uses only one dye to enable the viewer to observe the size, shape, or arrangement of cells A ______________ stain uses only one dye to enable the viewer to observe the size, shape, or arrangement of cells Gram stain Simple stain Endospore stain Capsule stain
Answer:
Simple.
Explanation:
A cell can be defined as the fundamental or basic functional, structural and smallest unit of life for all living organisms. Some living organisms are unicellular while others are multicellular in nature.
A unicellular organism refers to a living organism that possess a single-cell while a multicellular organism has many (multiple) cells.
Cell staining can be defined as a method used by scientists to view the cells of living organisms and its cellular components with the aid of microscope.
A simple stain uses only one dye to enable the viewer to observe the size, shape, or arrangement of cells. It typically involves the process of soaking a smear (thin film of living microorganisms) in dye and then rinsing it afterwards in order to visualize size, shape or arrangement of cells and other cell organelles such as mitochondria, cytoplasm, nucleus, golgi apparatus etc.
When reproducing, Robins (a species of bird) typically lay four eggs. Laying more eggs might result in malnourished chicks and laying fewer eggs might result in no viable offspring. This is an example of
Answer:
stabilizing selection
Explanation:
The illustration is an example of stabilizing selection.
Stabilizing selection is an evolutionary mechanism in which the extremes of traits are selected against, leading to an increase in the frequency of such traits in the population.
Laying too many eggs would lead to reduced fitness of the population of the bird as a result of malnutrition while laying too few eggs would lead to a reduction in the population. Reproduction needs to be optimized for maximum fitness.
There are different types of natural selection. One of them is stabilizing selection that favors the intermediate phenotype. The exposed scenario is an example of stabilizing selection.
Balancing selection, also called Stabilizing selection, decreases the frequency of individuals with extreme traits, and favors individual that exhibit medium-range characteristics, that gets to survive. Selective pressure is against h0m0zyg0tes, promoting genetic diversity. Genes expressing extreme characteristics in a h0m0zyg0sis are kept in a heter0zyg0us state, as a favorable adaptation to environmental conditions. In a graph, you will see that
→ The curve gets higher and thinner in the middle of the horizontal axe, indicating an increase in the heter0zyg0us genotype frequency.
→ The tails of the curve that coincides with h0m0zyg0us dominant and recessive genotypes frequencies will be near zero.
In the exposed example,
laying more than four eggs and less than four eggs are extreme phenotypes. laying four eggs is an intermediate favored phenotype.
The intermediate phenotype results in the species' fitness increase, so it is favored by natural selection.
Laying four eggs leads to well-nourished chicks, and all of them get to survive. Parents ensure their reproductive success.
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Please help ASAP worth 15 points
An igneous rock contains one half of its original amount of K(potassium)-40. how old is the rock
Answer: 1.251 billion years
Explanation: The half-life of potassium 40 is 1.251*10^9 years. Since in the igneous rock there is one half of potassium left it means only one half-life has passed.
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?
what are stem cells?
Answer:
Stem cells are cells with the potential to develop into many different types of cells in the body. They serve as a repair system for the body. There are two main types of stem cells: embryonic stem cells and adult stem cells
Explanation:
Totipotent (or Omnipotent) Stem Cells.
Pluripotent Stem Cells.
Multipotent Stem Cells.
Oligopotent Stem Cells.
Unipotent Stem Cells.
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.
Should this fish be named
Striped Sturgeon Pike or
Northern Zebra Trout
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:
If a mother and father are both heterozygous for Brown hair (B) over blond hair (b), what will their offspring look like? on a punnett square?
Answer:
My best answer is domaint hope this helps
Explanation:
Answer:
domanit is your answer. hope this helps
what bacteria causes strep throat
Answer: Viruses.
Explanation: They're the most common to cause strep throat.
help please that would be great
Answer:
B or E
Explanation:
B and E are selected by man-kind not nature itself.
Which among the following statements is correct?
(A) Diseases caused by microbes maybe acute or chronic
(B) Diseases caused by microbes are always chronic
(C) Diseases caused by microbes are always acute
(D) None of the above
by microbes maybe acute or chronic
Emerging ____________ may result from new and/or increased exposure to animal or insect populations and can be rapidly transported to vast areas because of ____________ .
Answer:
Emerging Diseases may result from new and/or increased exposure to animal or insect populations and can be rapidly transported to vast areas because of Globalization.
Explanation:
a characteristic that is inherited
Answer:
Hair color, eye color
Explanation:
What do you expect to happen if you increase the amount of greenhouse gases in the atmosphere?
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The global fish intake for humans in a year from the ocean is equal to the organic
content produced by bacteria in the sea for -
A: 90 minutes
B: 90 days
C: 90 years
D: 90 seconds
Answer:
The answer is A:90 minutes
What are the three forces that drive (create and cause to continue) ocean currents?
Answer:
The rise and fall of the tides. Tides create a current in the oceans, which are strongest near the shore, and in bays and estuaries along the coast. ...
Wind. Winds drive currents that are at or near the ocean's surface. ...
Thermohaline circulation.
Explanation:
The three forces that drive (create and cause continuing) ocean currents are wind, water density differences, and tides.
What are ocean currents?Gravity, wind, and water density all contribute to the continuous, predictable, directed movement of seawater known as ocean currents. Water in the ocean can move both horizontally and vertically. Horizontal movements are referred to as currents, while vertical changes are called upwellings or dwellings.
The three main water flows in oceans are waves, tides, and ocean currents. Waves are produced by the wind's effect on the ocean's surface. The temperature difference between the warmer equator and the cooler poles causes ocean currents.
Therefore, the three factors of wind, water density variations, and tides are what drive (make, generate, and sustain) ocean currents.
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