The excited electron then loses its energy as it travels down the Then, at some point, these higher energy electrons give up their "extra" energy in the form of a photon of light and fall back down to their original energy level.
What happens to an electron when it loses energy?
The lines in an emission spectrum occur when the electron loses energy, and "falls back", from a higher energy state to a lower one emitting photons at different frequencies for different energy transitions.
How can an electron in an atom lose energy?For an isolated atom or molecule in a gas, excited states of electrons often don't have any easy way to lose energy except by electromagnetic radiation- the light of some frequency. A little of the energy can go into internal vibrations for a molecule.
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A _______ error occurs when sister chromatids fail to separate properly during meiosis.
nondisjunction happens
Explanation:
The loss of a single chromosome from a diploid genome is called monosomy while the gain of one chromosome is called trisomy
Which statement describes the general
pattern of winds near the equator?
A. Winds are generally weak because the
equator is a region of mostly low air
pressure.
B. Winds are generally strong because the
equator is a region of mostly high air
pressure.
C. Winds are generally weak because the
equator is a region where low and high air
pressure atmospheric bands come together.
D. Winds are generally strong because the
equator is a region where low and high air
pressure atmospheric bands come together.
Answer:
A
Explanation:
do i need to explain
A team of scientists is studying several plant species that they think could become new farm crops. The scientists want to apply selective breeding to
develop one of the species into useful crop plants.
Which property of a plant species would be MOST USEFUL for meeting the scientists' goal?
A. very low genetic variation
B. very high genetic variation
C. producing only a few fruits and seeds each growing season
D. growing slowly from seedlings to maturity
Question 20 of 20 :
Select the best answer for the question
20. Which of these statements about the Ogallala Aquifer is true?
O A. Its water usage is closely regulated,
O B. It's beneath the East Coast.
O C. It's running out of water.
D. It has enough water to last 6,000 years.
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Answer:
C!!
Explanation:
It's not B because it's located in the great plains. Not D because in 50 years, 70% of the aquifer will be gone. Not A because water use isn't regulated.
Ogallala Aquifer is the rock holding the groundwater in the Great Plains of America. The Ogallala Aquifer is running out of water. Thus, option C is correct.
What is Ogallala Aquifer?Ogallala Aquifer is an underground layer of water that is held by the rocks, pebbles, and gravel that make the water well above the surface. It is not beneath the East Coast but is situated on the Great Plains of the United States.
It has been reported that the water usage of the Ogallala Aquifer is not regulated and hence it does not have enough water to last up to 6,000 years. At approx 70%, the water of the aquifer will be soon gone resulting in the deprivation of the water.
Therefore, option C. the Ogallala Aquifer is running out of water is correct.
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Which hypothesis is testable?
Plants that are grown by using brand A fertilizer taste best.
Plants that have flowers look prettier than plants that do not have flowers.
Plants will eventually die off if global warming trends continue.
Plants make more sugar on sunny days than on cloudy days.
Answer:
D.
Explanation:
Plants make more sugar on sunny days than on cloudy days.
Answer:Plants make more sugar on sunny days than on cloudy days.
Explanation:
d.
Question 4 of 20 :
Select the best answer for the question.
4. How do soils become overly saline?
O A. Salt from fertilizer accumulates in the soil
O B. Plains are flooded with seawater during large storms, which evaporates.
O C. Salts accumulate as water evaporates in poorly drained arid fields.
O D. As the climate warms, salts are deposited with acid rain.
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Answer:
C
Explanation:
When irrigation water containing significant salt content is used—without applying extra water to leach out the salts—accumulation of salts can create a saline soil.
Describe how Mendel's two laws are illustrated by the movement of chromosomes in meiosis. Drag the terms on the left to the appropriate blanks on the right to complete the sentences. Not all terms will be used.
a. metaphase I
b. anaphase I
c. in seperate gametes
d. meiosis II
e. in one gamete
f. law of Segregation
g. depend on
h. independent of
i. law of Independent Assortment
j. meiosis I
1. _____is illustrated by the behavior of two pairs of homologs during_____. The alignment of one homologous pair is_____the alignment of other pairs. 2. _____is illustrated in_____when homologs separate. Alternate alleles of a gene found on homologs segregate from each other and end up_____.
Answer:
1. law of Independent Assortment; metaphase I; independent of.
2. law of Segregation; meiosis I; in separate gametes.
Explanation:
Between 1856 and 1863, Gregor Mendel developed a series of mating experiments using pea plants, which enabled the discovery of some basic principles of inheritance. These principles/laws are stated as:
1) Law of segregation: this principle states that the inheritance pattern of phenotypic traits is characterized by the presence of a gene pair and each gamete carries only one allele for each gene pair so offspring inherit one gene variant (allele) from each parent
2) Law of independent assortment: this principle states that the genes responsible for the inheritance pattern of different traits are independently sorted from one another and thereby different traits are independent one from another.
3) Law of dominance: this principle states that the dominant allele will always be expressed in heterozygous individuals (this law is only applicable in cases of complete dominance).
In poultry, two genes R and P, control the shape of the comb on the head. The following genotype/phenotype relationship applies to the two genes and the phenotype: R- P- animals have a 'walnut' comb, R- pp animals have a 'rose' comb, rr P- animals have a 'pea' comb, and rr pp animals have a 'single' comb. What will the comb phenotypes be for the progeny of the cross RR Pp x rr Pp
Answer:
sssssssssssszdawe
Explanation:
Which object has particles with the most kinetic energy
If the results of your experiment do not support your hypothesis, you should
a. Publish your results anyway
b. Consider the results abnormal and continue working
c. Find a way to rationalize your results
d. Try another metho
How do you think Homeostasis of an organism and cell transport are connected?
Answer:
no they are not connected
Answer:
Cell transport helps maintain homeostasis because it keeps the conditions in the typical ranges within all of the cells in the organism.
Explanation:
______ receptors detect changes in internal and external body conditions.
Sensory
Motor
Answer: Sensory Receptors
What is the relationship between an individual named Pinus palustris and an individual named Pinus elliottii? (2 points)
a
They belong to the same species.
b
They belong to the same genus.
c
They have one parent in common.
d
They live in different areas.
Answer:
I would think it's B hope this helps.
Explanation:
Answer:
The answer is,
B ). They belong to the same genus.
Explanation:
I took the test.
The study of the interactions between organisms and their interrelationships with the physical environment is known as
In a population of 239 pea plants in equilibrium, 47 individuals have white petals, while the rest have purple petals. Color is controlled by a single gene with two alleles. Purple is dominant to white. How many individuals in the population should be heterozygotes if the population is in Hardy-Weinberg equilibrium
Answer:
The number of heterozygous individuals in this population is 120.
Note: All the results are rounded up. Because of this, you might get a similar value in your results but not exactly the same. That is ok, just follow the steps.
Explanation:
Due to technical problems, you will find the complete explanation in the attached files.
what is unequal reproductive success
Unequal reproductive success, also known as differential reproductive success, is a fundamental concept in the theory of evolution proposed by Charles Darwin.
It refers to the variation in the number of offspring produced by individuals within a population based on their inherited traits and adaptations.
Individuals possessing advantageous traits that better suit their environment are more likely to survive, reproduce, and pass on these favorable traits to their offspring.
On the other hand, individuals with less favorable traits may have lower reproductive success.
Over successive generations, the frequency of advantageous traits increases in the population, leading to the process of natural selection and the gradual evolution of species to better adapt to their changing environments.
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If we have a DNA gene that reads: TACGCGTCAGGCCAA
The Transcribed mRNA would read?
Answer:
AUGCGCAGUCCGGUU
Explanation:
A - U
T - A
G - C
C - G
Who does the mesosphere share a boundary with?
Answer:
The boundaries between layers in the atmosphere have special names.
Explanation:
The mesopause is the boundary between the mesosphere and the thermosphere above it.
The stratopause is the boundary between the mesosphere and the stratosphere below it. Scientists know less about the mesosphere than about other layers of the atmosphere.
what are two kinds of insomnia?
Answer:
Short-Term Insomnia and Chronic Insomnia.
Explanation:
Short-Term Insomnia is a brief episode of difficulty sleeping.
Chronic insomnia is a long-term pattern of difficulty sleeping.
Answer:
Short-Term Insomnia. Also known as acute insomnia or adjustment insomnia, this is a brief episode of difficulty sleeping. ...
Chronic Insomnia. Chronic insomnia is a long-term pattern of difficulty sleeping. ...
Other Ways of Describing Insomnia.
Explanation:
What is meant by the term "density"? Please provide an example of how
density is determined in air masses.
Answer:
1) density "the degree of compactness of a substance."
2) air masses "More dense, or “heavier” air will slow down objects moving through it more because the object has to, in effect, shove aside more or heavier molecules. Such air resistance is called “drag,” which increases with air density."
Explanation:
BRAINLIEST? plz
i)Which one of the following substances have sour test.a) acid b)base c) salt d) all of these
Answer:
a) acid
Explanation:
Acid is a chemical substance that is capable of donating protons (H+) when in an aqueous solution. This property makes a substance an acid, although the ability to donate completely or partially distinguishes a strong and weak acid.
One of the characteristics of acids is their SOUR TASTE. This characteristic sour taste is attributed to the hydrogen concentrations present in acidic foods or substances e.g unripe fruits.
Describe beta decay.
MULTIPLE CHOICE QUESTION
What is Descent with Modification?
Similarities in offspring due to having same parents
Differences in offspring due to random genetic
mutations or the recombination of parent's DNA.
Differences in offspring due to learned traits.
What is interkinesis??
Answer:
Interkinesis or interphase II is a period of rest that cells of some species enter during meiosis between meiosis I and meiosis II. No DNA replication occurs during interkinesis; however, replication does occur during the interphase I stage of meiosis.
Explanation:
Hope it helps
PLEASE HELP ME WITH THIs
in the levels of organization of plants, what are the two tissues and their functions?
Question 7 of 20 :
Select the best answer for the question.
7. What does eutrophication cause?
A. Increases in fish populations
O B. Toxic algae blooms
O C.A new food source for birds
O D. A reduction in water pollution
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Answer:
Toxic Algae Blooms
Explanation:
Floodwater deposits a large amount of sediment. excess nutrients promote the growth of algae is a cause of eutrophication.
What will happen to a plant if put in a box with only one hole?
Answer:
does it have water and sun through the hole?
Explanation:
if not it will die. if you specify i will edit my answer.
Answer:
yes if watered but it would have drainage problems
Explanation:
hope this helps sorry if it doesn't have a good rest of your night :) ❤
is scorpion are vertebrate or invertebrate
Answer:
invertebrates
Explanation:
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Differences between ephyra of Aurelia and Medusa of Obelia
Answer:
The answer is below
Explanation:
There are differences between ephyra of Aurelia and Medusa of Obelia some of which are:
1. While aurelia developed from the metamorphism of ephyra, the medusa is developed by the budding of blastostyles
2. Similarly, despite the resemblance in body structure, the aurelia is considered jellyfish, while obelia is considered Jellyfish.
3. Also, the medusa period in aurelia is dominant, while that of Obelio is reduced