Answer:
A base substitution is when the base in the DNA molecules is replaced with another base.
Explanation:
This substitution changes the base sequence of mRNA during transcription and in translation the amino acid sequence coded for by the mRNA will have a mistake in it because of its change in base
The purpose of the right ventricle is to:
I WILL GIVE BRAINLIEST!!!!!!!!! Name at least three adaptations that allow reptiles to live entirely on land.
Answer:
Reptiles have dry, tough skin covered in scales, Reptiles breathe using lungs. Reptiles’ kidneys concentrate urine. Young reptiles develop inside an amniotic egg.
Explanation:
good luck :)
Answer:
Reptiles have dry, tough skin covered in scales, which reduces water loss. Reptiles breathe using lungs; they do not exchange gases through their skin. Their kidneys also help prevent water loss by concentrating their urine. Young reptiles develop inside an amniotic egg, which is covered with membranes and a shell to prevent it from drying out.
Explanation:
sample response
Match the following items.
1. secretes digestive enzymes into the small intestine
2. the sac around the heart
3. digestion and absorption of food
4. intestinal flora
5. hydrochloric acid to digest food
6. fingerlike projections for absorption of nutrients
7. stores bile
8. secretion for digestion in mouth
9. reabsorption of needed materials by the kidney
10. filtration of wastes from the blood
small intestine
pancreas
tubules
pericardium
gall bladder
stomach
large intestine
Bowman's capsule
villi
Answer:
Ok, here it is! Brainliest maybe? <3
Explanation:
pancreaspericardiumsmall intestine large intestine stomachvilli gall bladder salivary glands tubules (tubular reabsorption)Bowman's capsuleSomeone please help meee ;-;
Why should you not exercise right after a meal? Select all that Apply
your muscles need oxygen
the body cannot supply enough blood to both digestive system and muscles
because your lungs don't function as well
the arteries to the stomach are open wide
the arteries to the leg are open wide
Answer:
(b) The body cannot supply enough blood to both the digestive system and muscles. (d) the arteries to the leg are open wide.
Explanation:
You shouldn't exercise right after eating a large meal, as you may feel bloating or muscle cramping. It's better to eat low-fiber, low-fat, and high-carbohydrate snacks 30 to 45 minutes before exercising. This can include yogurt, fruit, granola, peanut butter, or whole-wheat toast.
Which percentage of their offspring could be predicted to have white eyes
Answer:
What are the genotypes of the parents?
Can someone help me with his please?
13. A man who has type A blood whose dad had type O blood and a
woman with type B blood whose mom has type O blood are going to have
a child. A. What are the genotypes of the parents? B. What are the possible
blood types of the child and what are the chances of the child could have
each one?
parental genotype I^o I^a × I^o I^b
4.(01.01 MC)
What must happen for scientific theories to be accepted as valid?
Answer:
Scientific evidence must be reported, verified, and accepted by the scientific community.
Explanation:
Is the thermos considered a conductor or insulator?
Answer:
no
Explanation:
How are cardiac muscle cell and a nerve cell similar and different?
Answer:
Both are similar due to origin of the membrane voltage and impulse propagation whereas both are different in their function.
Explanation:
Cardiac muscle cell are similar to a nerve cell because both have the same origin of the membrane voltage and impulse propagation also occurs in the same manner whereas, cardiac muscle cell is different to a nerve cell because cardiac muscle cells form the cardiac muscular system while nerve cells form the nervous system. Muscle cells are responsible for the contraction and relaxation of heart while on the other hand, nerve cells are responsible for the transmitting of nerve impulses throughout the body.
explain went experiment
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When Went placed the agar block on one side of the decapitated shoot, the shoot curved away from the agar as it grew. This demonstrated that some kind of hormonal signal had diffused into the agar from the coleoptile tips. ... Went's experiment represented the first time that anyone had isolated a hormone from plants.
Thanks hope it helpsHow to write 778,000,000 in scientific notation
To answer the question what is 77800000 in scientific notation let’s recall how to convert 77800000 to scientific notation as detailed on our home page.
When you split the number 77800000 into a coefficient and a power of 10 you do get 77800000 in exponential form, but there is an indefinite number of possibilities.
As you probably want 77800000 in normalized scientific notation, the coefficient or significand of 77800000 in scientific notation must be in the interval [1,10[.
As there are many ways to express 77800000 in scientific notation, in this post we mean 77800000 in normalized scientific notation, unless stated otherwise. Therefore:
77800000 in scientific notation = 7.78 × 107.
Answer:
yoo im just now learning about this
i think u just move the decimal right? so it would 7.8 with a power of 10^7?
Explanation:
The body produces extra white blood cells after it has eliminated an invading organism. What
term is used to describe these "extra" cells?
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Corn is widely being used in the United States to make ethanol for use in automobile fuel. How might the overproduction of corn negatively affect the environment?
the crop will be a commonly planted which can reduce the production of other healty plants and creating fuel out of the crops is bad for us and our environment
Answer: The answer is decreasing soil fertility
Which of the following processes is key to producing gametes?
Answer:
meiosis
Explanation:
Gametes are formed through meiosis (reduction division), in which a germ cell undergoes two fissions, resulting in the production of four gametes. During fertilization, male and female gametes fuse, producing a diploid (i.e., containing paired chromosomes) zygote
plz brainlist me
explain the role of neutrons in your live
Answer:
Neutrons bind with protons and one another in the nucleus via the nuclear force, effectively moderating the repulsive forces between the protons and stabilizing the nucleus. Hope this helps. Can u give me brainliest
Explanation:
100 points.
Answers do not need to be full sentences.
1. What is the interval of the isotherms on this map?
2. What is the temperature at letter D?
3. What is the lowest temperature in degrees Fahrenheit on the map?
4. Which letter indicates a temperature of about 67 degrees Fahrenheit?
5. What is the hottest temperature in degrees Fahrenheit on the map?
6. Which letter has roughly the same temperature as letter C?
Interpreting Weather Maps and Data
7. Which letter indicates the most gradual change in temperature?
8. Which letter indicates the most sudden change in temperature?
9. Why are the average temperatures in the middle of the United States warmer than the coasts?
Answer:
1. 10 degrees
2. 50 degrees
3. 40 degrees
4. letter d
5. 100 degrees
6. letter k
7. letter c.
8. letter k
9. The climate of the United States varies due to changes in latitude see in the regions of united states. There is also range of geographic features, including the mountains , biodiversity and deserts. Seen on the mainland, the climate of the U.S. becomes warmer the further when traveled towards west till the coast is reached. The alteration in latitude makes the land dryer as its moved.
Explanation:
Sickle-shaped red blood cells result from a mutation in the gene that codes for hemoglobin. This mutation results in sickle-cell anemia. A partial sequence of bases from a normal hemoglobin gene and a sequence that results in sickle-cell anemia are shown below
Complete question: Sickle-shaped red blood cells result from a mutation in the gene that codes for hemoglobin. This mutation results in sickle-cell anemia. A partial sequence of bases from a normal hemoglobin gene and a sequence that results in sickle-cell anemia are shown below (the diagram is in the attached file)
What type of mutation is depicted in this sequence?
Answer:
The type of mutation is known as SUBSTITUTION.
Explanation:
Sickle cell anaemia is an inherited disease caused by abnormal shape of the red blood cell. This abnormal red blood cell contains less haemoglobin and cannot transport oxygen efficiently round the body. Sickle-shaped (abnormal) red blood cells result from a MUTATION in the gene that codes for hemoglobin.
Mutation is the random changes in DNA that alters genetic information and so introduce new characteristics. The different categories of mutations include:
--> Chromosomal mutation and
--> Point mutation.
SUBSTITUTION is a type of point mutation in which one base is incorrectly added during replication and replaces the pair in the corresponding position on the complementary strand. From the diagram, a partial sequence of bases from a normal hemoglobin gene and a sequence that results in sickle-cell anemia, shows a substitution of an A for the middle T. This leads to GUA in the messenger RNA, which specifies the amino acid valine. The substitution of valine for glutamic acid at this particular position alters the chemistry of the hemoglobin such that it sticks together if it is not binding oxygen, creating sickling of the red blood cells.
What would happen within a few months if all decomposers on Earth disappeared overnight?
There would be an overabundance of organic waste.
Plants would grow out of control.
Animals would grow out of control.
There would be no visible impact.
Answer:
There would be an overabundance of organic waste.
Explanation:
I took the same test :)
Compare the composition of Nucleic acids to lipids
The smooth endoplasmic reticulum also processes these lipids, which store energy.
Nucleic Acids: Carry genetic information or form structures within cells. Carbohydrates: storage and transport of energy and structural components.
Proteins: Many proteins are enzymes that catalyze biochemical reactions, and are vital to metabolism.
which is a primary function of a vacuole in a cell
Answer:
The primary function of a vacuole is that it can store water and food.
Explanation:
Answer:
A vacuole is a membrane bound cell organelle
the function of vacuoles is to maintain water balance and for storage of something
the size of vacuoles in plant cell is very big it takes more than half of the cell but in animals very small
hope it helps
how might the function of an ecosystem be affected is living and nonliving things could not interact with each other!
Answer:
Energy and nutrients are cycled throughout all the different components of the ecosystem. The non-living components like heat and nutrients are called abiotic factors. Both biotic and abiotic factors contribute to an environment's health. Biotic factors include plant productivity and animal behavior.
Why do rats have three lobes of liver and humans only have one?
Answer:
Although the rat liver is typically lobated2 and its ap- pearance does not resemble that of the human liver, the hepatic lobes of the rat liver have been found to be equivalent to the sectors of the human liver. As rats and humans belong to the class Mammalia, similar em- bryological development is expected.
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Which of the following is NOT a consequence of a stressed ecosystem?
A. Famine
B. Drought
C. War
D, Increased Population
Answer:
C
Explanation:
due to all the other questions come naturally that stresses the ecosytem
Where do the nutrients go that decomposers recycle from dead plant and animal
matter?
Help me please please please give you a reasoning while you picked it. only 3
*** WILL GIVE BRAINLIST***
Pioneer plants begin to grow from coastal sand dunes formed from the tide and wind.
Primary, Or secondary succession?? and why
Need answer quick please thanks
7. Which of the following systems is NOT found in a flatworm:
a. Digestive system
b. Respiratory system
c. Nervous system
d. All of the above
Answer:
No. B
8 think so
I hope it helps ✌️
Explanation:
Parasitic flatworm do not have a digestive system because they don't digest there food. They just suck it when the upper gut muscles contract, suck it inside their body then gobble them up and then they're done sucking the nutrients from the food people eat.
Answer:
A. Digestive system