Answer:
B competition will increase
Explanation:
this is because if there are less acorns then squirrels then they will all fight for the acorns and some will die to starvation. nest size won't increase because there isn't enough food for the squirrels already there. predation will decrease because there is less squirrels so that means less pray for the animals that eat the squirrels. then there is reproduction rates will increase. It is not that one because there are squirrels dying from starvation there aren't squirrels reproducing. that is why your answer is B.
Describe and explain how blood in the right ventricle travels to the left atrium
pls give me a awnser even if it’s just a sentence
Explanation:
Deoxygenated blood enters the right atrium passes through the right ventricle and then goes the lungs through the pulmonary artery.
It becomes oxygenated and enters the left atrium through the pulmonary vein
A conditional mutation expresses its mutant phenotype only under certain conditions (the restrictive conditions) and expresses the normal phenotype under other conditions (the permissive conditions). One type of conditional mutation is a temperature-sensitive mutation, which expresses the mutant phenotype only at certain temperatures. Strains of E. coli have been isolated that contain temperature-sensitive mutations in the genes encoding different components of the replication machinery. In each of these strains, the protein produced by the mutated gene is nonfunctional under the restrictive conditions. These strains are grown under permissive conditions and then abruptly switched to the restrictive condition. After one round of replication under the restrictive condition, the DNA from each strain is isolated and analyzed. What characteristics would you expect to see in the DNA isolated from each strain with a temperature-sensitive mutation in its gene that encodes the following?a. DNA ligase
b. DNA polymerase I
c. DNA polymerase III
d. Primase
e. Initiator protein
Answer:
a) DNA ligase
Due to temperature sensitivity DNA ligase action is impaired due to presence of multiple nicks but the DNA replication will proceed
b) Encoding polymerase I
Due to temperature sensitivity mutation occurs causing non-corrected strands to be obtained but DNA replication will continue
c) Encoding polymerase III
Replication is stooped here because of the importance of the enzyme in the synthesis of new strand
d) Primase
The enzyme will induce primers in forward and lagging strands
Explanation:
DNA replication is facilitated by the functionality of enzymes in assisting the formation of new synthesis
Temperature sensitive mutations
a) DNA ligase
Due to temperature sensitivity DNA ligase action is impaired due to presence of multiple nicks but the DNA replication will proceed
b) Encoding polymerase I
Due to temperature sensitivity mutation occurs causing non-corrected strands to be obtained but DNA replication will continue
c) Encoding polymerase III
Replication is stooped here because of the importance of the enzyme in the synthesis of new strand
d) Primase
The enzyme will induce primers in forward and lagging strands
e) Initiator protein
Harry had been learning about joints in one of his classes at school. On the way to the emergency room he tried to recall what types of tissues made up the different joints. He knew ligaments, tendons, and other connective tissues associated with joints often did not heal quickly. He wasn't sure whether it would better to have broken a bone or to have sprained something. Correctly match each tissue type to the sentence. Some of the words may be used more than once.
__________ is what makes up the war criage of synovial joints.
A symphysis is an amphithjoint where__________ joins adjacent bones
Epiphyseal platos are the growth plates of long bones which are made up of ___________ and are an example of a synchondriosis.
a. Dense regular conective tissue
b. hyallne cartilage
c. Dense irrregular conective tissue
d. fibrocartilage
Answer:
The correct answer is -
1. hyaline cartilage
2. fibrocartilage
3. hyaline cartilage
Explanation:
1. The hyaline cartilage covers the articular cartilage of the synovial joint that is translucent or clear as glass-like cartilage that has a firm consistency and a high amount of collagen.
2. A symphysis is an amphiarthrotic joint which is a fibrocartilagenous joint that joins with the adjacent bone. This is a very tough or strong tissue.
3. The growth plate of the long bone or epiphyseal plates are examples of synchondrosis,which is a hyaline cartilage composed tissue.
Which of the following is NOT a common element in the human body? Select all that apply.
Answer:
Helium and carbon dioxide
The elements that are not common in human body are carbon dioxide and helium. The correct options are B and E.
What are elements?A chemical element is a type of atom with a specific number of protons in its nucleus, including the pure substance made up entirely of that species.
Chemical elements, unlike chemical compounds, cannot be broken down into simpler substances by any chemical reaction.
The human body is made up of only six components: oxygen, hydrogen, nitrogen, carbon, calcium, as well as phosphorus.
Sulfur, potassium, sodium, chlorine, and magnesium make up about 0.85% of the remaining mass. All 11 of these elements are necessary.
Carbon dioxide and helium are elements that are not found in the human body.
Thus, the correct options are B and E.
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How much energy is lost as heat every time you eat a meal?
Answer: 90% energy is your answer
Answer:
90% of engry
Explanation:
Original DNA → T A C C A T G G A A C A A G T
Answer:
what do you mean
Explanation:
The law of universal gravitation states that both mass and distance of objects affect the gravitational force between them. Gravitational force increases as the mass of the objects increase. Gravitational force decreases as distance between the objects increases. Why are these statements considered scientific law, and not scientific theory?
What is a real world example of enzymes being used?
Answer:
Enzymes are used in the food, agricultural, cosmetic, and pharmaceutical industries to control and speed up reactions in order to quickly and accurately obtain a valuable final product. Enzymes are crucial to making cheese, brewing beer, baking bread, extracting fruit juice, tanning leather, and much more.
Explanation:
yessir
Which statement describes a difference between a jellyfish and a frog?
A jellyfish lacks vertebrae, whereas a frog has a spinal cord.
A jellyfish cannot reproduce sexually, but a frog can.
A jellyfish makes its own food, whereas a frog is a heterotroph.
A jellyfish is a prokaryote, whereas a frog is a eukaryote.
Answer:
A
Explanation:
The surprisingly low rates of genetic differences between different current human populations (about only 6.5%) and that most genetic diversity occurs person-to-person within a population rather than population to population points to:
A.
a common origin of Homosapiens sapiens in Africa from a small number of people
B.
a fairly high rate of gene flow between human populations
C.
a fairly short time, perhaps 200,000 years existing as a new species in Africa
D.
all of the above
Answer:
the answer for this question would be B.
a fairly high rate of gene flow between human populations
Genetic diversity is the result of heritable traits that vary within species. It is seen more in person-person than in population because the human population has a high rate of gene flow. Thus, option B is correct.
What are gene flow and drift?Gene flow is the passing of the heritable traits outside and inside the population due to factors like migration or because of the gametes. The alleles possessing the characters are moved from one population to another.
In genetic drift, the allele frequency experiences an alteration in the genetic pool of the population. High genetic flow and the drift in humans result in genetic diversity. It causes very neutral differences to appear and are most likely to be seen in person rather than in the whole population.
Therefore, the high gene flow results in genetic diversity in the person.
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Explain the strengths and weaknesses of Lamarck's theory of evolution.
There is no experimental proof of the lamarckism. New organs are not formed in organisms by their wish or requirement. 3.It is not necessary that an the acquired characters transmit into new
Answer:
Weaknesses are traits may stay around for longer that what their needed and Strengths are we adapt to our needs.
Explanation:
Lamarckism, a theory of evolution based on the principle that physical changes in organisms during their lifetime—such as greater development of an organ or a part through increased use—could be transmitted to their offspring.
I took the quiz and said this, I got it it right!
Hoof type in pigs is determined by a gene with the dominant allele (H) resulting in a fused hoof while the recessive allele (h) gives rise to a cloven hoof. The color pattern of the animal’s coat is determined by a dominant allele (B) that results in a belted pattern or a recessive allele (b) that leads to a solid color. Give the possible genotypes and phenotypes of the progeny resulting from crossing a HhBB male with a HhBb female.
In pole beans, the color of the bean is controlled by a gene with the dominant Red (R) allele and pale-green (r) allele is recessive. The mode of growth, either climbing or bush is controlled by another gene on another set of homologous chromosomes. The climbing (B) mode of growth is dominant over bush (b). A red bush plant was crossed with a pale-green climbing plant. Of the offspring there were approximately equal numbers of red, climbing; red, bush; pale-green, climbing; and pale-green bush. Give the genotypes of the parents and offspring.
Answer:
Problem 1: Give the possible genotypes and phenotypes of the progeny
F1) Genotypes:
2/16 = 1/8 of the progeny will be HHBB 2/16 = 1/8 of the progeny will be HHBb 2/16 = 1/8 of the progeny will be HhBB 2/16 = 1/8 of the progeny will be HhBb 2/16 = 1/8 of the progeny will be HhBB 2/16 = 1/8 of the progeny will be HhBb 2/16 = 1/8 of the progeny will be hhBB 2/16 = 1/8 of the progeny will be hhBbPhenotypes:
12/16 = 3/4 of the progeny will be fuse-hoofed and belt-colored, H-B-4/16 = 1/4 of the progeny will be cloven-hoofed and belt-colored, hhB-Problem 2: Give the genotypes of the parents and offspring.
red bush plant: Rr bb pale-green climbing plant: rr BbExplanation:
Due to technical problems, you will find the complete answer and explanation in the attached files
FAST HELP
1. What are the set of phenotypic traits that benefit a species in a given environment?
1.adaptations
2.phenotypes
3.genotypes
4.mutations
Answer: adaptations
Explanation: a change or the process of change by which an organism or species becomes better suited to its environment.
Note: Hope this helps you and am sorry for the late answer, it will help you in the future, if you want you can give me brainiest it would help me a lot.
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Given the DNA template strand below type the complementary mRNA that would be made during transcription.
TATAGCGTACGGCTAT
Answer:
AUAUCGCAUGCCGAUA
Explanation:
Give an example of interspecific competition.
Which of the following will most likely decrease genetic diversity?
А increased reproduction
B selective breeding
C mutations
D immigration
Selective breeding dangers reduced genetic diversity can result in certain insects or diseases attacking, which could be quite devastating. Thus, option B is correct.
What is the cause of selective breeding in genetic diversity?Selective breeding can contribute to a large reduction in the genetic diversity of farmed populations, endangering long-term evolutionary progress and limiting populations' ability to adjust to environmental changes.
Unknowingly selecting uncommon illness genes as part of a desirable characteristic might cause difficulties with particular organisms, such as the high prevalence of deafness in Dalmatian dogs.
Genetic diversity is typically reduced by selective breeding, since only a few individuals are employed to produce enormous numbers of offspring. The population's survivability may be impacted by this.
Therefore, selective breeding will most likely decrease genetic diversity.
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Water was rediscovered on the Moon in 2020. How is the recent discovery different from the LCROSS discovery and why is it potentially exciting for humans?
Answer:
Both are the same but done by different space agencies.
Explanation:
The recent discovery is same as the LCROSS discovery because both are done in order to discover water on the moon. it is potentially exciting for humans because water is very important for life as well as this water is also can be used for formation of rocket fuel from it which helps the rocket in movement from moon to the earth if the fuel is finished.
QUESTION 1
How many pairs of ribs are in the human body?
O 6 pairs
O 12 pairs
O 9 pairs
O 16 pairs
QUESTION 2
Which facial bone forms the chin?
O The Mandible bone
O The Mandible & Maxillae bone
The Maxillae bone
O The Mandible, Maxillae & Zygomatic bone
Answer:
12 pairs
mandible
Explanation:
What is one physical adaptation of sunflowers?????????
Answer:
Sunflowers require full sun exposure, they are heliotropic, which means that the movement of the flower is towards the direction of the sun.
Compared to the distances between the planets of our solar system, the distances between stars are usually
A) much greater
B) much less
C about the same
Answer:
the distances are much greater
Explanation:
because stars have their own light and energy so they dont need to orbit planets or other stars.Planets dont have their own light so they need to orbit a star and a star is usually orbited by multiple planets (sorry for my bad english)
24. Which of the following best describes chromosomes? (1 point)
supercoiled strands of a DNA molecule
identical strands of a DNA molecule
segments of a DNA molecule
relaxed strands of a DNA molecule
Answer:
Chromosomes are supercoiled strands of a DNA molecule
What is an observational study? How is it different from a controlled experiment?
Answer:
Observational study is when you observe your subject and take more notes rather that writing down quantitative data. Meanwhile, a controlled experiment is more quantitative.
Explanation:
Which statement explains why the structure of sickle cells differs from normal red blood cells?
A
The gene mutation affects protein synthesis.
B
The gene mutation prohibits DNA replication.
C
The gene mutation inhibits the cell’s ability to produce tRNA.
D
The gene mutation affects the cell’s ability to produce ATP.
Answer:
a
Explanation:
The structure of sickle cells differs from normal RBCs because of the gene mutation that affect the protein structure.
Sickle Cells:
These cells look like a crescent moon. They are unable to transport oxygen. This cause anemia in the patient.
It is an inherited disorder in which point mutation in the lead to the different protein structure. This results in the sickled RBCs.
Normal blood cells are round in shape and able to transport oxygen.
Therefore, the structure of sickle cells differs from normal RBCs because of the gene mutation that affect the protein structure.
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Describe how the mutation has effected the protein coded by this gene?
Answer:
By changing a gene's instructions for making a protein, a mutation can cause the protein to malfunction or to be missing entirely. When a mutation alters a protein that plays a critical role in the body, it can disrupt normal development or cause a medical condition.
Explain the difference between independent variables, dependent variables, and control variables.
Answer:
Independent: Purposely altered
Dependent: Changes with respect to the independent being altered
Controlled: Never changes
Explanation:
An independent variable is a variable in which does not rely on other pieces/variables of an experiment to assume a value. In other words, it does not change when other variables change. However, it can be changed intentionally by the scientist.
A dependent variable is a variable in which its change in value relies on other pieces/variables of an experiment to assume a value. So, if the indeoendent variable is changed, the dependent variable will change as well. The opposite is not true though - if the dependent variable changes (for whatever reason), the independent variable hasn't necessarily been changed.
A controlled variable is a variable that stays CONSTANT throughout an experiment. It is never changed, and nothing will change it. An example of a control variable is the number of participants in a study: no more participants are being added, and no participants are being removed. The number of participants remains STATIC throughout the study.
2
What does the author describe in the passage?
A
the history of the Hoover Dam and its impachon the Southwest region
B
the development of different types of hydropower
C the political environment in America during the construction of the Hoover
Dam
improvements in irrigation along the Colorado River before the Hoover
Dam was built
Answer: A . the history of the Hoover Dam and its impact on the Southwest region.
Explanation:
This question is based on the article, ''The Hoover Dam'' by Michael Stahl. In it the author begins by describing what hydroelectricity is and how it came about.
The author then used the Hoover Dam to illustrate the points made about hydroelectricity by first giving a brief history of the construction of the dam and the sacrifices it took to build it. The impact the dam had on the area it supplies - the Southwest - was also analysed.
-If you can please awsner both parts of the question in complete sentences!!
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An example of a non-specific intemal defense is:
Will give BRAINLIEST
Answer:
Mucous membranes
Explanation:
The epidermis (external) and mucous membranes (internal) represent the first non-specific barriers that act against invading pathogens and harmful substances. The mucous membranes separate the external environment surrounding the mucous cells from the body's internal environment. These membranes are considered as selectively permeable barriers that act to prohibit the passage of pathogenic microorganisms (e.g., bacteria) and harmful agents (toxic chemical substances).
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1. Lymph fluid contains all but
a, red blood cells
b. hormones
c. digested nutrients
d. salts