Answer:
C.) It is rich in humus and very fertile
What is the role of knowing the Earth's history to mankind?
Answer:
Earth history enables us to understand those changes which no human being has ever seen (or if they have, they didn't record it) and to relate them to modern changes. Such events include: The rise and extinction of the dinosaurs. The formation of the Grand Canyon.
Explanation:
Answer:
Earth history enables us to understand those changes which no human being has ever seen (or if they have, they didn't record it) and to relate them to modern changes. Such events include: The rise and extinction of the dinosaurs. The formation of the Grand Canyon.
hope it's helpful
thank you
PLEASE HELP
Which correctly defines homologous structures?
A
Anatomically similar structures found in multiple organisms that may or may not share a similar function but result from convergent evolution.
B
Anatomically similar structures found in multiple organisms that may or may not share a similar function but result from divergent evolution.
C
Anatomically different structures found in multiple organisms that share a similar function and result from convergent evolution.
D
Anatomically different structures found in multiple organisms that share a similar function and result from divergent evolution.
Answer: d
Explanation:
If the water concentration inside a cell is higher than the water concentration outside the cell, water flows out of the cell. This method of molecular transport is called
A.
osmosis.
B.
endocytosis.
C.
a sodium pump.
D.
exocytosis.
Answer:
a
Explanation:
Which of the following is not a characteristic of lakes? A) deeper than ponds B) lack of waves C) found in mountainous regions D) larger than ponds E) fed by rivers
Answer: E - Fed by rivers
Share three ways you would take to reduce water pollution.
Question 3
2 pts
The genetic code found on
gives cells instructions for building specific
which are machine-like molecules that can carry out specific functions in a cell..
O DNA, proteins
O cells, mitochondria
O chromosomes, genes
O genes, liposomes
Answer:
im pretty sure it is DNA,proteins
Explanation:
The concept of race is socially constructed,meaning that it is something defined by our society
1.True
2.False
False.
Races are a well-known diversity.
Describe the two types of speciation (in your own way) pleaseee thank you
What is conditioning?
Answer:
conditioning, in physiology, a behavioral process whereby a response becomes more frequent or more predictable in a given environment as a result of reinforcement, with reinforcement typically being a stimulus or reward for a desired response.
Explanation:
write on the mechanism of hearing and balancing of the ear
Answer:
what?
Explanation:
Which of the following statements is TRUE during depolarization?
Answer:
a is correct
Explanation:
Which of the following is a __________?
Interphalangeal joint
Elbow joint
Tibiofemoral joint
*All of the above
Answer:
d. All of the above
Explanation: is correct
Helpppppppppdhhdudhdjdjdnndj
Answer:
D
Explanation:
could someone help pls (pic with question attached)
Platelets helps us in fighting against diseases. ______.
Answer:
True
Explanation:
THere are two types of platelets which are; lymphocytes and phagocytes
Lymphocytes swallow bacteria while phagocytes kill them
answe rir plssssessSSSSSS
Environment: Polluted Forest Moths Released G1 G2 G3 G4 G5 Typica 125 88 83 76 29 Carbonaria 510 735 885 1042 1406 Total 635 823 968 1118 1435 Phenotype Frequency Color Initial Frequency Frequency G5 Typica Light 9 Carbonaria Dark Allele Frequency Allele Initial Allele Frequency G5 Allele Frequency q d p D Genotype Frequency Moths Genotype Color Moths Released Initial Frequency Frequency G5 Number of Moths G5 q2 Typica dd Light 2pq Carbonaria Dd Dark p2 Carbonaria DD Dark
The recessive allele frequency decreased (q = 0.14) and the dominant one increased (p = 0.86). Genotypic frequencies followed this tendency too (q² =0.02, 2pq = 0.24 and p² = 0.74). The Carbonaria phenotype increased to 0.98, while Typica showed a frequency of 0.02.
------------------------------------------
Available data:
Some moths were released in the forest (N=1000). 250 were white, and 750 were black.
The color is defined by a single diallelic gene. The dominant allele -D- codes for black color (carbonaria), while the recessive allele -d- codes for white (Typica).
These individuals produced five new generations since they were released, G1, G2, G3, G4, G5.
Moths realesed G1 G2 G3 G4 G5
Typica 250 125 88 83 76 29
Carbonaria 750 510 735 885 1042 1406
Total 1000 635 823 968 1118 1435
Phenotype frequencies
Color Initial Frequency G5 Frequency
Typica white 0.25
Carbonaria Black 0.75
Allele Frequencies
Allele Initial Allele Frequency G5 Allele Frequency
q d 0.5
p D 0.5
Genotype Frequency
Moths Genotype Color Released Initi.Freq. G5 Freq. Nº F5 moths
q² Typica dd White 250 0.25
2pq Carbon. Dd Black 500 0.50
p² Carbon. DD Black 250 0.25
This information is guiding you to know how to calculate frequencies and total numbers. Information about released individuals is an example of how you need to proceed.
Firts, we will assume that this population is under Hardy-Weinberg equilibrium. So let us review some theoretical framework.
The allelic frequencies in a locus ⇒ p and q ⇒ dominant and
recessive alleles.
The genotypic frequencies after one generation are p² (H0m0zyg0us dominant), 2pq (Heterozyg0us), q² (H0m0zyg0us recessive).
If a populations is in H-W equilibrium, it will get the same allelic frequencies generation after generation.
The sum of allelic frequencies equals 1 ⇒ p + q = 1. The sum of genotypic frequencies equals 1 ⇒ p² + 2pq + q² = 1Now let us analyze the problem.
We need to get information on G5 generation. We will do it step by step.
1) Phenotype frequencies
To get the Phenotype frequencies, we just need to divide the number of individuals with each phenotype by the total number of individuals in this generation. So,
Total number of individuals in G5 → 1435 White = Typica = 29 individuals Black = Carbonaria = 1406 individuals
⇒ F(Typica) = 29 / 1435 = 0.02
⇒ F(Carbonaria) = 1406 / 1435 = 0.979 ≅ 0.98
2) Allelic Frequencies
We can use the phenotypic frequencies to get the allelic frequencies.
Remember that carbonaria (black) moths include h0m0zyg0us dominant (DD) and heter0zyg0us (Dd) individuals. So we can not get the allelic frequencies from this data.
We can only use the allelic frequency of Typica (White) individuals. Typica phenotypic frequency only includes h0m0zyg0us recessive individuals, dd.
We know that,
H0m0zyg0us recessive genotype → dd
Genotypic frequency → F(dd) → Represented as q²
F(Typica) = F(dd) = q² = 0.02
Recessive allele → d
Recessive allelic frequency → f(d) → Represented as q
f(d) = q = ??
q² = 0.02
q = √ 0.02
q = 0.1414 ≅ 0.14
0.14 is the recessive allelic frequency. Now we should calculate the dominant allelic frequency. To do this, we will clear the following formula,
p + q = 1
p + 0.14 = 1
p = 1 - 0.14
p = 0.86
So, now we also know that
⇒ f(D) = p = 0.86
⇒ f(d) = q = 0.14
3) Genotypic Frequencies
Now, we need to get the genotypic frequencies, F(xx)
⇒ F(DD) = p² = 0.86² = 0.7396 ≅ 0.74
⇒ F(Dd) = 2pq = 2 x 0.86 x 0.14 = 0.24
⇒ F(dd) = q² = 0.14² = 0.0196 ≅ 0.02
4) Number of individuals
Finally, we need to tell the number of individuals with each genotype. We just need to multiply each frequency by the total number of individuals in G5.
F(DD) = p² = 0.74
F(Dd) = 2pq = 0.24
F(dd) = q² = 0.02
Total number of individuals = 1435
⇒ DD Black -Carbonaria- individuals → 0.74 x 1435 = 1,061.9 ≅ 1062
⇒ Dd Black -Carbonaria- individuals → 0.24 x 1435 = 344.4 ≅ 344
⇒ dd White -Typica- individuals → 0.02 x 1435 = 28.7 ≅ 29
From this results, we can conclude that the moths population is not in H-W equilibrium, because their allelic and genotypic frequencies changed through generations.
It seems that Natural selection is favoring the dominant phenotype by increasing the frequency of the dominant allele over the recessive one. Probably directional selection is acting on this population.
----------------------------------
Related link: brainly.com/question/12724120?referrer=searchResults
How is Wallace's view scientific
Does sugar free red bull have energy for cellular respiration and if so what kind?
Answer: yes my man
Explanation:
Answer:
Red Bull Zero and Red Bull Sugarfree contain the same main ingredients – caffeine, taurine and some B-group vitamins. Both are made without sugar, instead using different low calorie sweeteners.
Explanation:
PLSSS HELP! IF CORRECT, WILL MARK BRAINLIEST
Following the fusion of an egg cell and sperm cell, the resulting diploid cell divides by mitosis to create two new daughter cells. Each daughter cell contains pairs of chromosomes, with one set inherited from each parent.
Which of the following best describes the pairs of chromosomes that are present in each newly formed daughter cell?
Choose 1 answer:
A) The pairs are homologous chromosomes that have the same set of genes, but likely different variations of those genes.
B) The pairs are non-homologous chromosomes that contain different sets of genes.
C) The pairs are homologous chromosomes that have identical copies of every gene.
Answer: A
i have no idea why
The pairs are homologous chromosomes that have the same set of genes, but likely different variations of those genes. The correct option is A.
What are homologous chromosomes?Among a pair of chromosomes with the very same gene sequence, loci, chromosomal size, and centromere location is referred to as a homologous chromosome.
One paternal and one maternal chromosome make up a homologous pair. In humans, the nucleus of a somatic cell contains 46 chromosomes.
Homologous chromosomes differ from sister chromatids because they are not identical and do not emanates from the same organism.
Sister chromatids are identical, side-by-side duplicates of each other that form as a result of DNA replication.
Homologous chromosomes do not pair together during mitosis. Homologous chromosomes line up end-to-end in mitosis so that when the cells divide, each daughter cell receives a sister chromatid from both members of the homologous pair.
Thus, the correct option is A.
For more details regarding homologous chromosomes, visit:
https://brainly.com/question/13242901
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What is the phase shown below?
Prophase
Metaphase
Telophase
Anaphase
Answer:
Telophase
Explanation:
What are some examples of non-native species that have been Introduced to and thrive in Los Angeles increasing the overall "biodiversity" because of human activity?
The House Sparrow was introduced to North America from Europe. It is not really a sparrow but a European weaver-finch. It is highly successful, tends to follow human habitation, thrives in agricultural areas, and does not damage the local ecosystem. I would rate it a neutral. Bird of the Day: A Sparrow that's not a Sparrow, and a Successful Immigrant
The reintroduction of wolves into Yellowstone has had a positive effect on the ecosystem there. Wolf Reintroduction Changes Ecosystem
Horses were also introduced from Europe to North America and seem to have been neutral toward the ecosystem (unless you are a cattle rancher). They could be considered a reintroduction since they did evolve in North America also but just died out in the past.
Wild turkeys were introduced to the Western states from its native location in the Eastern US. They have been successful and effect on the ecosystem seems at worst neutral.
Two introductions that we regard as very beneficial animals, the earthworm and the European honeybee had negative effects on the native North American ecosystem, but very positive effects on those plants that the settling Europeans were trying to grow. The earthworm had been killed off the ice age in the Northeast and was introduced via the ballast from ships. Earthworms ground through leaf litter that the trees depended on and resulted in sparser forests. Honeybees were deliberate introductions. The native bees were few and favored only a few plants. The European honeybee was enormously fertile and liked pretty much all flowering plants making it a major league pollinator. My source for this information earthworms and honeybees is America, Found and Lost
Which of the following is true about cells?
A. A cell’s components are all identical and perform the same function.
B. Cells have specialized components that all perform the same functions.
C. A cell has a single component that performs all of the cell’s different, specific functions.
D. Cells have specialized components that perform different, specific functions.
Answer:
D
Explanation:
Hope this helps
Which weather conditions will most likely cause heavy rain and cooler temperatures? (A. Cold front) (B. Seabreeze) (c. warm front) (D. Land breeze)
Answer:
a. cold front
Explanation:
Many fronts cause weather events such as rain, thunderstorms, gusty winds, and tornadoes. At a cold front, there may be dramatic thunderstorms.
hope this helps
Many scientists consider genetic engineering to be simply an efficient method of selective breeding. Is it?
True or False: A positive ion and a negative ion will repel each other.
Answer:
FALSE is correct
Explanation: Questions protected!
The movement of tectonic plates in two locations is described below:
Location A: Tectonic plates collide and one plate moves over the other while the other plate is pushed deep into the mantle
Location B: Tectonic plates slide past each other
PLS HELP I WILL GIVE BRAIBLIEST AND 100 POINTS
Which statement is most likely correct?
Volcanic eruptions may occur in both locations.
There is no chance of earthquakes in the two locations.
Mountains may form in Location B but not in Location A.
Subduction happens in Location A but not in Location B.
Explanation:
volcanic eruption may occur in both location
Answer: D
Explanation subduction happens when one plate is ontop of another and pushes it into the matel
hope this helps :)
What of the following best explains the pace and timing of evolutionary change?
A: Evolutionary change quickly and constantly occurs throughout time.
B: The pace of evolutionary change has slowed down over time, and it only rarely occurs now.
C: Periods during which evolution occurred were always preceded by a catastrophe.
D: Long periods of stability were punctuated with periods of evolutionary change.
Answer:
B: The pace of evolutionary change has slowed down over time, and it only rarely occurs now.
Explanation:
What of the following best explains the pace and timing of evolutionary change The pace of evolutionary change has slowed down over time, and it only rarely occurs now.
Answer:
D: Long periods of stability were punctuated with periods of evolutionary change.
Explanation:
Individual A, who is suffering from cardiovascular disease consume a set of briyani rice
daily for a long period of time.
Discuss the effects of the diet to his health.
[10 markah/ marks]
Answer:
Eating whole grains like brown basmati rice is linked to a lower risk of heart disease. Whole grains help to reduce blood cholesterol levels.
https://www.webmd.com/diet/health-benefits-basmati-rice#1
Look at the diagram. Name organ 4.
Answer:
That's the liver
Explanation:
Just look up "Liver Diagram"
