Answer:
DNA bases pair up with each other, A with T and C with G, to form units called base pairs. Each base is also attached to a sugar molecule and a phosphate molecule. Together, a base, sugar, and phosphate are called a nucleotide. Nucleotides are arranged in two long strands that form a spiral called a double helix.
A nucleotide consists of a sugar molecule (either ribose in RNA or deoxyribose in DNA) attached to a phosphate group and a nitrogen-containing base.
GGCATTACGTA
Explanation:
When people receive organ transplants, they often need to take medications that decrease immune responses because * 2 points D. transplanted organs produce their own antibiotics B. antigens present in these organs attack antibodies already present in the blood C. hormones present in replacement organs prevent the synthesis of antibiotics A. transplanted organs contain antigens that can trigger white blood cell activity
Answer:
The correct answer is A. transplanted organs contain antigens that can trigger white blood cell activity
Explanation:
The body's immune system is designed to seek out and destroy any foreign object it finds in the body, such as a cold or flu virus - or a transplanted organ. The process of destruction of the transplanted organ is called rejection.Immunosuppressive drugs will be provided to prevent your immune system from damaging the transplanted organ. Organ transplants require the use of immunosuppressive drugs capable of controlling the immune response triggered by the presence of antigens foreign to the body itself. The group of immunosuppressants is made up of drugs indicated both in the prevention of rejection of the transplanted organ and in its reversal.
a scientist begins working by trying to explain a natural occurence that is...
1. consistent
2. observable
3. In a lab
4. undetectable
Answer:
Observable
Explanation:
An observable phenomenon leads to an hypothesis.
Answer:
2. observable
Explanation:
The scientific method relies on a scientist being able to study an occurrence and understand it. So, all the occurrences must be observable; otherwise, they cannot be studied. If the patterns are observable then one can follow the scientific method and experiment with the different variables. All science depends on the observable world and the people that study it.
help pls *serious ppl only*
Answer:
6 for white parents, and 6 for black parents.
PLEASE HELP ITS DUE TOMORROW
based on Mr. Kaku's assertion that knowing what the stars are made of is as easy as running starlight through a prism, use the CER method to explain the use of light to determine composition of a star in detail.
Answer:
good luck on that one... ........... ..
18. Which of the following is not an environmental consequence of aquaculture? (1 point)
It releases wastewater into natural environments.
It breeds diseases that devastate fish populations.
It introduces invasive species to natural ecosystems.
It causes wild fish populations to become too large.
It encourages overfishing of wild fish used to feed farmed fish.
This is the question I need help with.
Answer:
rodents
Explanation:
because they are closely related and have a more recent common ancestor. Hope the picture helps u to understand:)
Answer: D or Rodents
Explanation: Rodents have the same four limbs, Eukaryotic, have Vertabrae, and same Amniotic egg and hair/ fur, so they are the most closely related in this graph
What is the role of RNA polymerase?
Answer:
RNA polymerase is an enzyme that is responsible for copying a DNA sequence into an RNA sequence, duyring the process of transcription.
Explanation:
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Cell Processes and Transport: Mastery Test
4
Select the correct answer from each drop-down menu.
Sodium and potassium lons are essential for muscle contractions of the heart. The ions are transported using a pump, which obtains
energy by the breaking of
. This action requires the expense of energy. So, sodium and potassium ions are transported using
Reset
Next
Answer:
Cell
Explanation:
Sodium and potassium ions are essential for muscle contractions of the heart, and the ions are transported using a pump, which obtains energy from the breaking of ATP molecules, this action requires the expenditure of energy, so sodium and potassium ions are transported using active transport.
What is muscle contraction?Sodium and potassium ions play a crucial role in muscle contractions, including those of the heart, and to maintain the appropriate concentration of these ions inside and outside the cell, the body uses a protein pump called the sodium-potassium pump, which is an active pump. It requires energy to move substances across cell membranes; the pump uses the energy released by the breakdown of ATP molecules to change its shape, transport the sodium and potassium ions across the membrane, and regulate the muscle contraction.
Hence, the ions are transported using a pump, which obtains energy from the breaking of ATP molecules, this action requires the expenditure of energy, so sodium and potassium ions are transported using active transport.
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question is incomplete, complete question is below
Select the correct answer from each drop-down menu.
Sodium and potassium ions are essential for muscle contractions of the heart. The ions are transported using a pump, which obtains energy by the breaking of ----. This action requires the expense of energy. So, sodium and potassium ions are transported using---
ATP,
active transport.
PLEASE HELP!!!
24) is it possible to know the genotypes of the three children in generation 111?
should their shapes be shaded? explain your answer to both questions.
Answer:
The genotype of all children in generation III is Hh. as H comes from dad and h comes from the mother for every case.
yes, their figures should be shaded.
reason :-
The dominant allele Fort this disease is shown by H whereas the recessive trait shown by h.
each offspring in generation III has the genotype Hh
and the presence of one dominant allele is enough to cause the disease.
all children in generation 3 suffer from the disease and so their figures should be shaded
Which is an endocrine function?
Answer:
Explanation:
The endocrine system is a messenger system comprising feedback loops of the hormones released by internal glands of an organism directly into the circulatory system, regulating distant target organs. In vertebrates, the hypothalamus is the neural control center for all endocrine systems. In humans, the major endocrine glands are the thyroid gland and the adrenal glands. The study of the endocrine system and its disorders is known as endocrinology.
If the PH or the temperate where the enzyme is located changes, the enzyme is very likely to
denature (become inactive/ stop working)
True
False
Answer:
very true
Explanation:
they dont like change:)
Enzymes are proteins that help speed up metabolism, or the chemical reactions in our bodies.
If the PH or the temperate where the enzyme is located changes, the enzyme is very likely to denature is a true statement.
What are enzymes?The enzymes show the best activity at optimum temperature and pH. When there is a change in the temperature, the structure of the enzyme is changed.Any change in the temperature or pH will result in the breaking of the peptides or disulfide bonds. This will disturb the tertiary structure of the enzyme. At the lower temperature, the enzymes get deactivated while, at a higher temperature, it gets denatured.Thus, we can conclude that the correct option is True.
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strenuous exercise leads to muscle cramp give reason
Explanation:
Cramps can have causes that aren't due to underlying disease. Examples include dehydration, strenuous exercise or lack of muscle use.
HOPE IT HELP YOU MATE ☃️☃️
Answer: Lactic acid
Explanation: The acid is caused by anaerobic respiration, which you do when you do not get enough oxygen
The table lists some organelles and functions. Only one pair is correctly matched.
Functions of Organelles
Organelle Function
Nucleus Directs cell activity
Endoplasmic reticulum Breaks down sugar molecules to supply energy
Golgi apparatus Supports and protects organelles in the cell
Lysosome Produces proteins for the cell
Which organelle in the table is correctly matched with its function?
Answer:
I believe the correct answer is nucleus.
Neither endosomes nor lysosomes are found in the nucleus. The nucleus serves as the primary remote control for the cell. It acts as the cell's brain by giving instructions on what to do, how to grow, and when to reproduce.
What is the cell controlling power of nucleus?The nucleus serves as the primary remote control for the cell. It acts as the cell's brain by giving instructions on what to do, how to grow, and when to reproduce. The nucleus of the cell contains the cell's genes.
The nucleus is the area of the cell that manages all of its operations. The nucleus is a membrane-bound, spherical organelle.
Its membrane, known as the nuclear membrane, has nuclear pores that control how materials are transported into and out of the cell. The nucleus' ability to store DNA is its primary role.
Therefore, Nucleus organelle in the table is correctly matched with its function.
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By the end of this lab, you will see how some materials diffuse through a semipermeable membrane but others do not. The materials that you examine will differ in molecule size . Some will be larger and some smaller . Formulate an investigative question for this situation .
Answer:
Due to their sizes.
Explanation:
Some materials diffuse through a semipermeable membrane because of their small size which can pass through small pores present in the semipermeable membrane of the cell while on the other hand, some molecules can't diffuse through semipermeable membrane of the cell due to its large size. Glucose, oxygen and sodium are the examples which are smaller in size and can diffuse through semipermeable membrane whereas fats, carbohydrates and proteins are big in size so it can diffuse through semipermeable membrane of the cell.
Answer:
What is the effect of molecule size on a molecule's ability to diffuse across a semipermeable membrane?
Explanation:
here’s the proof… you’re welcome
Explain the phenomenon you observe in the diagram. Provide as many details as possible to your explanation
Answer:
reflection
Explanation:
this is what is seen on the mirror
Which is an important source of carbon monoxide emissions that contributes to the greenhouse effect?
landfills
wetlands
vehicles
greenhouses
Why do you think species are endangered? Name some root cause of the problem.
How do you think this situation can be realistically improved?
Which of the following is an example of a point source of population?
A. deforestation leads to soil erosion, which empties into a pond.
B. animal manure washed from a farm enters a stream.
C. an industrial waste pipe discharges water into lake.
D. storm water from street surfaces runs into river.
what you mean by accessory pigments?
Write about the structure and the purpose of Fat or Lipids.
Answer:
A lipid is any of various organic compounds that are insoluble in water. They include fats, waxes, oils, hormones, and certain components of membranes and function as energy-storage molecules and chemical messengers.
Describe the roles performed by the cell wall and cell membrane in a plant cell
Answer:
Cell membrane controls the substances that go in and out of the cell.
Cell wall keeps cell tugid and strong.
How do u tell if a rat snake is a female or male
Answer:
Well Males have longer tails than females do.
Explanation:
Answer:
well thanks for the point
A principle that states in a sequence of undisturbed rocks, the oldest rocks are on the bottom
and the rocks become progressively younger toward the top
Choose from these answer:
(Superposition)
(Uniformity)
(Fault)
(Overfolding)
super position
Explanation:
because because it is arranged in a sequence
Which conclusion is best supported by his observations?
Answer:
The answer would be d finch 4 is adapted to eat small insects that live in tiny holes.
Explanation:
1.3 Genes and Chromosomes.
___ are sections of ___ that code for the production of DNA code.
Answer:
Genes and DNA
Explanation:
20.
Wheat can vary in color from white to dark red depending on how much red pigment is present. Which genotype will produce the darkest wheat?
AaBBCC
aabbcc
AaBbCc
AABBcc
Answer:
AaBBCC
Explanation:
I think this is it. Hope it helps
Define the term:
1.Respiration
2.Transportation
Answer:
1 respiration the chemical process whereby energy rich molecules, example glucose,is chemically broken down to release energy.
Answer:
breathing in and out
Explanation:
the action or process of inhaling and exhaling breathing
movement of humans,animals and goods from one location to another
what is one way the gas giants differ from the terrestrial planets
what is one way the gas giants differ from the terrestrial planets?
ANSWERPlanets that are largely comprised of rock, such as rocky or terrestrial planets, are not like gas giants. Unlike rocky planets, gas giants lack a clearly defined surface there is no obvious line separating the atmosphere from the surface. The atmospheres of the gas giants are primarily hydrogen and helium.
--------------------------hope this helps...have a great day!!3characteristics of good respiratory surface
thin walls.
a moist inner surface.
a huge combined surface area.
The volume of air in the lungs is controlled by the