Which statement below describes the best reason scientists think cystic fibrosis can be treated with gene therapy? Cystic fibrosis -
kills many individuals before they can reproduce.
is caused by a single gene on one chromosome.
can't be passed on from parent to child.
presents with different symptoms in each person.
Answer:
kill many individuals before they can reproduce
Using this illustration as a guide, indicate the level one would need to drill to gain a sample containing the highest ratio of parent rock in comparison with organic material.
horizon C
horizon A
horizon B
horizon O
Answer:
horizon C
Explanation:
The horizon C has the highest ratio of parent rock as compared to organic matter. This horizon starts after horizon B and present above the bed rock. This horizon consists of weathered and partially decomposed rocks. It is the actual layer of soil of that place whereas the other horizon A and B comes with the passage of time when the wind bring the soil particles and these particles deposits on this layer of the soil making horizon A and B.
HELP ASAP!!!!! Plss sill give u Brainly and heart
A scientist is studying metabolic rate in a Giant Hummingbird in Peru. The scientist assumes a captured individual has been feeding on nectar (glucose) recently, but in fact the individual has not fed in the last hour and is currently metabolizing fat (palmitic acid). 3. Calculate the measurement error the scientist would introduce based on their faulty assumption if the scientist were measuring CO2 production. Will the scientist over- or underestimate metabolic rate
Answer:
Yes.
Explanation:
Yes, the scientist underestimate the metabolic rate of Giant Hummingbird. The scientist experience the measurement error due to non-feeding of Giant Hummingbird that leads to faulty assumption when the scientist were measuring CO2 production because the Giant Hummingbird breakdown the fats of the body for the release of energy instead of glucose. There is difference in the production of carbondioxide rate due to difference in the composition of fats and glucose.
A remote island in Lake Superior is uninhabited by humans. The primary mammal populations are white-tailed deer and wolves. The island is left undisturbed for 100 years. Circle the best choice to complete the statement about what will happen to the average populations of the animals over time. On average, the populations of deer and wolves will fluctuate, but:
Answer:
A remote island in Lake Superior is uninhabited by humans. The primary mammal populations are white-tailed deer and wolves.
Explanation:
The splitting apart of cells is known as:
cell division
fusion
energy production
kenosis
Answer:
cell division
Explanation:
Answer:
the answer isA
Explanation:
Mitosis is a process of nuclear division in eukaryotic cells that occurs when a parent cell divides to produce two identical daughter cells. During cell division, mitosis refers specifically to the separation of the duplicated genetic material carried in the nucleus.
description of Vegetative
Answer:
Vegetation def is: growing plants, or a life without physical, mental or social activity
Vegetative depends on the context. Mainly just means without brain activity
Which is true of reabsorption in the distal convoluted tubule?
Answer: its false
Explan : hope im right
which of the following is not function of the skeletal system that protects the delicate organs of the body it supports the body see its transports food to the different parts of the body the its enables the body to move please help me please
Explanation:
Option D:production of body heat: The skeleton serves six major functions: support, movement, protection, production of blood cells, storage of minerals and endocrine regulations. Hence, production of body heat is not a function of the skeletal system.
The major functions of the skeletal system are body support, facilitation of movement, protection of internal organs, storage of minerals and fat, and blood cell formation
One of the hazards of biotechnology is -
creating organisms dangerous to human health.
increasing biodiversity of ecosystems
decreasing the availability of natural fuels.
using excessive amounts of energy.
decreasing the availability of natural fuels
Corona means____ and most human corona viruses cause ____ symptoms in humans. A. Circle, mild B. Crown, major C. Crown, mild
Answer: the answer is c for both
Explanation:
a culture started with 5000 bacteria. after 8 hours, it grew to 6000 bacteria. predict how many bacteria will be present after 10 hours
why do plants need water?
Explanation:
plants need water for the process of photosynthesis and transpiration
Answer:
to live
Explanation:
wattttteeerrrrrrr
balance the equation: KrF2+H2O -> Kr + O2 + Hf (the numbers are actually subscripts i just cant make them tiny on my keyboard
Answer:
KrF2 + H2O -> Kr + O2 +2HF
Explanation:
You would just need to add a 2 on the HF, because on both sides it can balance with 2F's and 2 H's
Give three examples of steroid hormones in humans.
Answer:
The steroid hormones are the estrogens (female sex steroids), androgens (male sex steroids), progestins, mineralocorticoids, glucocorticoids, and vitamin D with its daughter metabolites.
Explanation:
mark brainlest!
What kind of decomposers are found in all ecosystems
PLZ ANSWER IMMEDIATLY OR I WILL DIE!!! just kidding I won't die
Answer:
bacteria
Explanation:
hope this helps!! please mark brainliest :))
Answer:
Decomposers include bacteria and fungi. These organisms carry out the process of decomposition, which all living organisms undergo after death. Decomposition is an important process because it allows organic material to be recycled in an ecosystem.
Explanation:
3.List the 3 strengths & 3 Weaknesses of behaviorism.
Answer:
Weaknesses: Many critics argue that behaviorism is a one-dimensional approach to understanding human behavior and that behavioral theories do not account for free will and internal influences such as moods, thoughts and feelings.
Strengths: One of the greatest strengths of behavioral psychology is the ability to clearly observe and measure behaviors. Behaviorism is based on observable behaviors, so it is sometimes easier to quantify and collect data when conducting research.
in which place would you find the fewest organism?
The sahara desert
The peak of Mt everest
A savannah
A rain forest
Answer:
The peak of mt everest
l think this is correct answer
l hope it's helpful for you....
Which process can occur in both mitosis and meiosis?
Answer:
both involve cell division
Explanation:
why the walls of atrium are thin?
only about atrium thinner not than ventricles plz
This is because blood is pumped out of the heart at greater pressure from these chambers compared to the atria. ... This is due to the higher forces needed to pump blood through the systemic circuit (around the body) compared to the pulmonary circuit.
The walls of the atria are thinner because the atria doesn't need to pump blood to the whole body, it only needs to transport it to the ventricles.
C. In which situation is the paramecium in danger of swelling up and bursting?
Answer:
hypotonic solutions
Explanation:
hope im right
There is a risk of paramecium to swell and burst in hypotonic solutions.
What is Hypotonic solution?A hypotonic solution is defined as a solution that has a lower solute concentration than any other solution. A solution cannot be hypotonic, isotonic, or hypertonic without the solution of comparison. It is a description of the solute content of one solution with respect to another solution.
If the surrounding solution has a lower solute concentration than the solute concentration inside the cell, the solution is said to be hypotonic. When a cell is exposed to a hypotonic environment, there is an influx of water and this results in swelling of the cell. For example, in hypotonic solutions the paramecium swells and burst in danger.
Thus, there is a risk of paramecium to swell and burst in hypotonic solutions.
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. In humans, the allele for normal blood clotting, H, is dominant to the allele for hemophilia, h.
This is a sex-linked trait found on the X chromosome. A woman with normal blood clotting has
four children: a normal son, a hemophiliac son, and two normal daughters. The father has
normal blood clotting. What is the genotype for each member of the family? Submit your work
with this assignment.
Answer:
Explanation:
Father: X^HY , mother: X^HX^h
Son: X^HY
hemophilic son: X^hY
2 daughters: X^HX^H
Why does pollution stay within the earths atmosphere
Answer:
pollution doesn't nessairly stay in the atmosphere, it is moved throughout the atmosphere and can be removed by a natural process.
The opening and closing of the heart valves is caused by Multiple Choice action potentials within the cusps of the valves. pressure changes of alternating contraction and relaxation during the cardiac cycle. contraction and relaxation of papillary muscles that pull on heart strings. contraction of the smooth muscle in the walls of the great vessels leaving the heart.
Answer:
pressure changes of alternating contraction and relaxation during the cardiac cycle.
Explanation:
In Human anatomy, cardiac cycle can be defined as a complete heartbeat of the human heart which comprises of sequential alternating contraction and relaxation of the atria and ventricles, therefore causing blood to flow unidirectionally (one direction) throughout the human body.
Generally, the cardiac cycle occurs in two (2) stages;
I. Diastole : in this stage, the ventricles is relaxed and would be filled with blood.
II. Systole: at this stage, the muscles contracts and thus, allow blood to be pushed through the atria.
Hence, the opening and closing of the heart valves is caused by pressure changes of alternating contraction and relaxation during the cardiac cycle.
What is the function of a Golgi apparatus in a cell?
Explanation:
Functions :Listed below are the functions of Golgi complex
The vital function of the Golgi apparatus is packaging and secretion of proteins.It receives proteins from Endoplasmic Reticulum.It packages it into membrane-bound vesicles, which are then transported to various destinations, such as lysosomes, plasma membrane or secretion.They also take part in the transport of lipids and the formation of lysosomes.Post-translational modification and enzymatic processing occur near the membrane surface in Golgi bodies, e.g. phosphorylation, glycosylation, etc.Golgi apparatus is the site for the synthesis of various glycolipids, sphingomyelin, etc.Complex polysaccharides of the cell wall are synthesised in the Golgi apparatus in plant cells.DNA "unzips" to allow the synthesis of which new strand of genetic material?
Answer:
a molecule carried out by an enzyme called Helicase which breaks down the hydrogen bonds
DNA unzips to allow the synthesis of new template strand of genetic material which forms mRNA through transcription.
What is Transcription?Transcription is the process of copying a segment of the DNA molecule into mRNA (messenger RNA). The segments of the DNA molecule are transcribed into mRNA molecules which can encode proteins and polypeptides. Other segments of DNA which are copied into the mRNA molecules are called as non-coding RNAs (ncRNAs). The mRNA molecule comprises only about 1–3% of the total RNA samples.
The DNA unzips with the help of an enzyme called as DNA helicase which produces negative supercoiling to produce new strand of genetic material called as template strand. This template strand forms mRNA molecule through transcription.
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Landon wants to model erosion that quickly change the Earths surface. He uses mud to make a model of a hill. What should he do next? please have a necessary answer and please don't guess or I will delete your answer. Please.
(A) Plant seeds on the hill
(B) Sprinkle water on the hill.
(C) Place small rocks on the hill.
(D) Pour a Large glass of water on the hill.
Answer:
b
Explanation:
because it says it says it will change the surface of the hill and that is the second step you need to do when modeling it.
In fruit flies, curved wings (w) are recessive to the dominant straight wings (W), and ebony body (b) is recessive to the dominant gray body (B). A fly that has curved wings and ebony body is crossed with a fly that has straight wings and gray body. Of the offspring there were approximately equal numbers of straight gray, straight ebony, curved gray, curved ebony. What are the genotypes of the parents and offspring
Answer:
The correct answer =
parents : WwBb x wwbb
offspring :
WwBb, Wwbb, wwBb, and wwbb
Explanation:
It is given that the straight wings (W) is dominant over curved wings (w) and the ebony body (b) is recessive to the dominant gray body (B) and there is a cross between curved wings and ebony body and straight wings and gray body is made. The phenotypic ratio is: 1:1:1:1 for the four different phenotypes straight gray, straight ebony, curved gray, curved ebony.
It is not given the genotype of parents, however, for the curved and ebony fly, it is clear that both alleles are recessive as recessive alleles only appear in absence of the dominant allele of the trait.
For another parent, the possible genotypes can be WWBB or WwBb, however in the case of WWBB the phenotypic ratio would not be equal therefore,
crossing WwBb x wwbb
This can be represented in the form of a punnett square as below:
wb wb wb wb
WB WwBb WwBb WwBb WwBb Straight wing, Gray body
Wb Wwbb Wwbb Wwbb Wwbb Straight wing, Ebony body
wB wwBb wwBb wwBb wwBb Curved wing, Gray body
wb wwbb wwbb wwbb wwbb Curved wing, Ebony Body
The phenotypic ratio is: 1:1:1:1 for the four different phenotypes
Analyze the relationships between the anatomical structures and physiological functions of the muscular system by matching the terms in column A with the definitions in column B. Place the letter of your choice in the space provided. Column A
a. Endomysium
b. Epimysium
c. Fascia
d. Fascicle
e. Myosin
f. Perimysium
g. Sarcolemma
h. Sarcomere
i. Sarcoplasm
j. Sarcoplasmic reticulum
k. Tendon
l. Transverse (T) tubule reticulum
Column B
1. Membranous channel extending inward from muscle fiber membrane
2. Cytoplasm of a muscle fiber
3. Connective tissue located between adjacent muscles
4. Layer of connective tissue that separates a muscle into small bundles
5. Plasma membrane of a muscle fiber
6. Layer of connective tissue that surrounds a skeletal muscle
7. Unit of alternating light and dark striations between discs (lines)
8. Layer of connective tissue that surrounds an individual muscle fiber
9. Cellular organelle in muscle fiber corresponding to the endoplasmic
10. Cordlike part that attaches a muscle to a bone
11. Protein found within thick filament
12. A small bundle of muscle fibers within a muscle
Answer:
a. Endomysium 8. The layer of connective tissue that surrounds an individual muscle fiber
b. Epimysium 6. The layer of connective tissue that surrounds a skeletal muscle
c. Fascia 3. Connective tissue located between adjacent muscles
d. Fascicle 12. A small bundle of muscle fibers within a muscle
e. Myosin 11. Protein found within a thick filament
f. Perimysium 4. The layer of connective tissue that separates a muscle into small bundles
g. Sarcolemma 5. The plasma membrane of a muscle fiber
h. Sarcomere 7. Unit of alternating light and dark striations between discs (lines)
i. Sarcoplasm 2. The cytoplasm of a muscle fiber
j. Sarcoplasmic reticulum 9. A cellular organelle in muscle fiber corresponding to the endoplasmic
k. Tendon 10. The cordlike part that attaches a muscle to a bone
l. Transverse (T) tubule reticulum 1. Membranous channel extending inward from muscle fiber membrane
Explanation:
A muscle has around it epimysium, which is connective tissue. Inside the epimysium, there are fascicles, and around each of them, there is perimysium. Inside every fascicle, there are muscle fibers, each of them is surrounded by a connective tissue called endomysium. Between every muscle, there is also connective tissue and is called fascia. The connective tissue has vessels and provides support.
The muscle cells are called fibers. They have a membrane, the sarcolemma, a cytoplasm, the sarcoplasm, and a sarcomere, which is the functional unit of the fiber, in other words, it is the structure responsible for the contraction. The sarcomere has different bands made of thick filaments of myosin and thin filaments of actin. They are the light and dark striations that go from disc z to disc z when we observe the sarcomere under a special microscope. The sarcoplasmic reticulum is the place that stores the calcium necessary for the contraction of the fiber, and the transverse tubule reticulum allows the contraction of various fibers since they spread the action potential amongst fibers.
provide one example of how Tammy could have handled the personal call differently
Tammy answers a private call on her business phone at work. She might have handled it better by politely excusing herself and offering to call the person back during her break or after work hours instead of having a long conversation.
She might say, "I'm sorry, but I'm at work right now and I need to concentrate on my tasks. Can I call you back after work or during lunch break? So that there is no rush, we can talk properly. Setting limits and prioritizing her job obligations allows Tammy to maximize productivity at a later time while attending to a personal issue in a thoughtful and professional manner.
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