Answer:
1.)The types of mutations include: Missense mutation: This type of mutation is a change in one DNA base pair that results in the substitution of one amino acid for another in the protein made by a gene. Nonsense mutation: A nonsense mutation is also a change in one DNA base pair
.2.) Some mutations don't have any noticeable effect on the phenotype of an organism. This can happen in many situations: perhaps the mutation occurs in a stretch of DNA with no function, or perhaps the mutation occurs in a protein-coding region, but ends up not affecting the amino acid sequence of the protein.
3.)External factors include physical and chemical signals. Growth factors are proteins that stimulate cell division. – Most mammal cells form a single layer in a culture dish and stop dividing once they touch other cells. Two of the most important internal factors are kinases and cyclins.
4.) In normal cells, the cell cycle is controlled by a complex series of signaling pathways by which a cell grows, replicates its DNA and divides. ... In cancer, as a result of genetic mutations, this regulatory process malfunctions, resulting in uncontrolled cell proliferation.
Explanation:
Hope this helped :)
Which two are part of the chemical digestion of the STOMACH
Pepto
Hydrochloric Acid
Pepsin
Pepsi
One of the chromosomes in a nucleus has a telomere which contains many repeats of the base
sequence TTAGGG.
This chromosome was extracted from four different cells and the total number of bases in the
telomere was determined.
Which total number of bases was found in the cell that had undergone the most mitotic divisions?
А
5548
B 5580
C 5645
D
5700
How does the DNA of the Parent Spider Plant compare to that of the plantlets?
How many parents does a spore have?
A. one
B. two
Answer:
it only has 1 parent hope this helps!
Answer: It should be one only, if I’m wrong I’m sorry
Explanation:
What process is shown in figure B
Answer:
I think its evaporation. I'm not sure tough so take my statement with a grain of salt.
Explanation:
Answer:
passive transport
Explanation:
passive transport moves molecules and ions from a higher concentration to lower concentration without any energy.
Which of the following statements about enzyme functions is true
As you are walking home from studying at the library late one evening, you get startled by a strange sound behind you. This activates your sympathetic nervous system. What affect does this change have on stroke volume
Answer:
It has a positive change in stroke volume.
Explanation:
The amount of blood pumped out of the left ventricle of the heart during each systolic cardiac contraction is referred to as stroke volume. During systolic contraction, the heart pumps blood into circulation.
Sympathetic nerves also innervate or stimulate the middle muscular layer of the heart wall. Therefore, an increase of activity in the sympathetic nervous system will trigger an increase in the force of contraction of the heart and, therefore, increase stroke volume. An increase in stroke volume also translates to the pressure of blood being pumped through the arteries.
Cheers
Moss plants have male and female parts. Which is a difference between these parts?
A. Male parts produce eggs, and female parts
produce sperm.
B. Male parts produce sperm, and female
parts produce eggs.
Answer:
Male part produce sperm and female part produce egg
What are the molecules that govern the transition from: place you answers next to each phase G1 S G2
Answer:
cells use checkpoints at the end of G1 phase, end of G2 phase, and move through the cell cycle, do they breeze through from one phase to the next. The spindle checkpoint, at the transition from metaphase to anaphase. The general answer is that internal and external cues trigger signaling.
Identify and explain all of the nutritional requirements of plants.
Answer:
Key Points
Nutrients and water are absorbed through the plants root system.
Carbon dioxide is absorbed through the leaves.
From seedling to mature plant, there is a complex dynamic between plants and their environment (soil and atmosphere).
Key Terms
germinate: to sprout or produce buds
photosynthesis: the process by which plants and other photoautotrophs generate carbohydrates and oxygen from carbon dioxide, water, and light energy in chloroplasts
nutrient: a source of nourishment, such as food, that can be metabolized by an organism to give energy and build tissue
Explanation:
Plants are unique organisms that can absorb nutrients and water through their root system, as well as carbon dioxide from the atmosphere. Soil quality and climate are the major determinants of plant distribution and growth. The combination of soil nutrients, water, and carbon dioxide, along with sunlight, allows plants to grow. In order to develop into mature, fruit -bearing plants, many requirements must be met and events must be coordinated.
Hope it helps you!!!
What is “structure is a stock that supports a single flower” please answer ASAP
Answer:
the stem
Explanation:
What are 6 ways ATP is used?
Answer:
Cell Signaling
Structural Maintenance
Muscle contraction
Synthesis of DNA and RNA
Active Transport
Explanation:
Answer:
Cell Signaling
Structural Maintenance
Muscle contraction
Synthesis of DNA and RNA
Active Transport
Explanation:
I agree with the person above me
Good luck!
Have a nice day!
Which describes vestigial structures and how they relate to evolution?
Snakes have tiny internal hind leg bones, indicating that they likely descended from lizards.
Humans and dogs have similar bone structures in their forelimbs, indicating a common ancestor.
Dolphins and birds have structures that are adapted for swimming, but the structures did not evolve the same way.
The DNA of mice and chickens shows similar patterns, suggesting that the two species are related.
Answer:
apes
Explanation:
Answer:
Snakes have tiny internal hind leg bones, indicating that they likely descended from lizards.
Explanation:
Disscus the importance of phytoplankton to the composition of the earth's atmosphere?
Answer:
Phytoplankton are essential for atmospheric and climate regulation.
Explanation:
Phytoplankton are autotrophs, they use solar energy, along with inorganic carbon and water to produce their own food source via photosynthesis. During photosynthesis, they also produce oxygen, integral for the planet's atmospheric composition.
At their large biomass, phytoplankton contribute to a majority of the oxygen used by consumers (most animals).
6 CO2 + 6 H2O + light → C6H12O6 + 6 O2
Carbon Dioxide + Water + Light Glucose + Oxygen
Along with fossil fuels, human agricultural practices have contributed large amounts of CO2 to the atmosphere, This causes global warming, a major environmental crisis- global warming also leads to landmass loss, biosphere disruption and reduces biodiversity in mass extinction events.
Phytoplankton carbon cycling produces organic matter which functions as carbon sinks in our oceans. Thus, as phytoplankton use large amounts of CO2, they help combat warming cycles, along with producing O2 in atmospheric and climate regulation.
PLEASE HELP ME WITH THIS QUESTION
Answer:
A. stroma
Explanation:
The Calvin Cycle occurs in the inner parts of the chloroplasts, which is also referred to as the stroma.
This disease is vector transmitted with rodents as the reservoir
Answer
Answer:
Rodents are reservoirs and hosts for several zoonotic diseases such as plague, leptospirosis, and leishmanias
The main function of the respiratory system is to
O pump wastes.
O exchange O2 and CO2 gases.
filter wastes.
O transport O2 and CO2 gases.
Answer:
exchange O2 and CO2 gases.
Explanation:
The respiratory system's main function is to exchange oxygen and carbon dioxide gases within the body. The organs that make up the respiratory system include the nose, pharynx and larynx, the trachea, bronchi, and the lungs. Each of these organs help with the process of breathing and/or the exchanging of gases within them.
I hope this help :)
Which type of secretion has an extra cellular effect such as the digestion of food?
what are the organisms of eubacteria
Answer:
Eubacteria are typically classified into five different phylums: Chlamydias, Cyanobacteria (Blue-green algae), Gram-positive bacteria, Proteobacteria, and Spirochetes. Chlamydias are often parasitic bacteria. Cyanobacteria are most commonly known to be aquatic and obtain energy via photosynthesis.
Explanation:
hope it was helpful
Which of the following best explains why larger grapes have a different rate of water absorption per gram of mass than smaller grapes do?
A
The rate is slower because smaller grapes have a larger surface-area-to-volume ratio than the larger grapes do.
B
The rate is slower because larger grapes have a larger surface-area-to-volume ratio than the smaller grapes do
С
The rate is slower because smaller grapes can expand more than larger grapes to hold excess water.
D
The rate is slower because larger grapes have more volume to hold excess water than smaller grapes do.
For a science project, a student is asked to explain the osmotic function of the cell membrane using a working model. Which model should the student consider?
O a solid rubber ball placed in a beaker containing a concentrated salt solution
an egg in its shell placed in a beaker containing a concentrated sugar solution
O a solid, impermeable plastic ball containing a sugar solution placed in a beaker containing a more concentrated salt solution
O a semi-permeable plastic bag filled with a sugar solution placed in a beaker containing a more concentrated sugar solution
Answer:
the third one...
O a semi-permeable plastic bag filled with a sugar solution placed in a beaker containing a more concentrated sugar solution
Explanation:
Answer:
C
Explanation:
Which of the following scenarios involves the introduction of a potentially invasive species?
The migration of spiders in fruit shipped to the United States from South America
The escape of a rattlesnake from a zoo exhibit
Picking flowers while on vacation in California and planting them in your garden in Texas
I and II only
I and III only
II and III only
I, II, and III
Answer: I and II (1 and 3)
Explanation: The spiders could destroy the ecosystem of a region where it had not been presented, since insects or some mammals are defenseless against this species because they had never seen or interacted with it, it can hunt and reproduce to a great extent, becoming a problem, and by taking flowers from another region totally different from yours (in animal and plant life) can cause serious damage, since these flowers could bring dangerous insects even for humans, and for native species, ending with what can eat.
uwu
Hope I help you!
what is the Term for the process in which an object can be identified when only using the sense of touch
Explanation:
Psychometry is a psychic ability in which a person can sense or "read" the history of an object by touching it. Such a person can receive impressions from an object by holding it in his/her hands or, alternatively, touching it to the forehead.
Which statement correctly describes what proteins, lipids, and glycogen have in common
Answer:
They are all used as primary energy sources during exercise. They are each stored in the liver to be used as a ready energy reserve. They each can be broken down to provide ATP to cells.
Answer:
The statement that correctly describes what proteins, lipids, and glycogen have in common is C. they each can be broken down to provide ATP to cells. Proteins, lipids, and glycogen all consist of a group of molecules, which means they can be broken down to these smallest items. ATP, or adenosine triphosphate, is a molecule that can be found in anything, and which we need for everything because it is a source of energy in living beings.
Explanation:
The diagram shows a pedigree for three generations: grandparents, parents, and grandchildren.
Which are represented by the pedigree? Check all that apply.
The grandparents are both carriers.
One of the female children is normal.
No grandchildren show the trait.
Two of the grandchildren are affected females.
The parents have two daughters who are carriers.
Answer:
It is A and C
Explanation:
I hope this helps you because I got it wrong but it told me the correct answers, so I know they are correct!
Answer:
A and C
Explanation:
edge 2021
Jackson uses a battery operated toothbrush that is rechargeable. What happens when Jackson plugs his toothbrush into an electrical outlet to recharge it?
Answer:
Explanation:
The type of battery that Jackson's toothbrush is using is a secondary cell; this is because it can be recharged (meaning the electrochemical reactions taking place in the battery can be reversed). Batteries generally work in such a way that, while using it, electrons move from the anode of the battery to the cathode. In primary cells, this process continues until there are no electron to be transferred from the anode to the cathode and then the battery "dies" and is disposed. But in a secondary cell, just like the battery of Jackson's toothbrush, when the battery is been recharged, the electrons start moving from the cathode back to the anode; which makes electrons available again in the anode for use.
Match each term with the corresponding description?
I will give brain
Answer: Weathering = The breakdown of rocks into sediment Uniformitarianism = The present is the key to the past
Erosion = The process of transporting sediment to a new location
Explanation:
Have a good day ;) hope this helps.
Match the organ to the number showing the order of blood flow in the circulatory system.
Start with what happens after the heart pumps blood to the body's cells.
Blood with oxygen
Blood with carbon dioxide.
Heart with deoxygenated blood.
Lungs
Heart with oxygenated blood
Answer:
What sends oxygenated blood back to the heart from the lungs?
Oxygen-rich blood flows from the lungs back into the left atrium (LA), or the left upper chamber of the heart, through four pulmonary veins. Oxygen-rich blood then flows through the mitral valve (MV) into the left ventricle (LV), or the left lower chamber.
Explanation:
this isnt even for school- can anyone identify what kind of rock this is for me? it has clear parts aswell.
Answer:
That looks like it might be a quartz? I'm not 100% on that though.
Explanation:
The nucleotide is _____________.
a.Made of sugar and phosphate
b.The structural unit of DNA
c. The main component in blood
d. Made of nitrogenous bases