Which of the following statements is true about the current amount of carbon on Earth? A. There is the same amount of carbon on Earth now as there was 10,000 years ago B. There is no scientifically accurate way to determine the amount of carbon on Earth 10,000 years ago C. As a result of burning and fossil fuels, there is an increased amount of carbon on Earth now than there was 10,000 years ago D. As a result of burning and fossil fuels, there is a decreased amount of carbon on Earth now than there was 10,000 years ago
Answer:
b
Explanation:
Three brothers have blood types A, B, and O. What are the chances that the parents of these three will produce a fourth child
whose blood type is AB?
A) 100%
B) 25%
C) 50%
D) 0%
I have a science question....30 points! Look at the minerals shown below.
Both diamond and coal are formed by changes in pressure and temperature below the Earth's surface. Which of these is a step in the formation of the minerals?
A. atoms break up in extreme heat
B. atoms are rearranged in materials
C. atoms combine in water to form solids
D. atoms of magma cool after a volcanic eruption
Thank you.
Answer:
B. atoms are rearranged in materials
Explanation:
Will mark brainliest and give thirteen points if you give explanation
Answer:
A.
Explanation:
A solar eclipse occurs when a portion of the Earth is engulfed in a shadow cast by the Moon which fully or partially blocks sunlight. This occurs when the Sun, Moon and Earth are aligned. Such alignment coincides with a new moon indicating the Moon is closest to the ecliptic plane.
Answer:
A
Explanation:
To see a total eclipse, where the moon fully covers the sun for a short few minutes, you must be in the path of totality. The path of totality is a relatively thin ribbon, around 70 miles wide, that will cross the U.S. from West to East.
there are 12% cytosines in a DNA molecule , what percentage of thymines
Answer:
To calculate the percentage of thymine we need to use Chargaff's rule:
Chargaff's rules state that the amount of guanine should be equal to cytosine and the amount of adenine should be equal to thymine
A+G=T+C
A=T
C=G
100%-(2x12)=2T
T=(100%-24%)/2
T=38%
Free earlobes are determined by a dominant allele. Attached earlobes are determined by a recessive allele. Tyler has free earlobes. His father has free earlobes but his mother has attached earlobes. What is Tyler’s genotype?
Which part of a plant absorbs nutrients and water
A. Flower
B. fruit
C. root
D. Leaf
E. seed
F. stem
Answer:
C. root
The part of the plant that absorbs nutrients and water is root.
Hope it will help :)
Answer:
the root
Explanation:
Which organ system removes cellular wastes as the result of cellular respiration?
a) Digestive Systelm
b) Respiratory System
c) Excretory System
d) Nervous System
e) Circulatory System
Answer:
Excretory system
Explanation:
The excretory system serves to remove these nitrogenous waste products, as well as excess salts and water, from the body
The brain signals the body of an animal to move by transmitting electrical impulses through the neurons. An animal is then able to walk or run because -
Answer:
The muscles of the muscular system work with the bones of the skeletal system.
Explanation: The musculoskeletal system is what enables movement.
(I hope this helps, you can also search up the same question maybe someone also answered it.)
:)
An animal is then able to walk or run because the muscles of the muscular system work with the bones of the skeletal system. The musculoskeletal system is what enables movement.
What is skeletal system?The skeletal system of the body has been composed of the bones and cartilage and they will perform many different types of function in the body of the organism. The cartilages along with the bones form the structural framework of the body. It also helps in the performing locomotory functions of the body. The brain signals the body of an animal to move by transmitting electrical impulses through the neurons.
It has the skeletal system of the body that helps in the walking, bending, sitting and as well as other movements of he body. It has been also serves as the barrier between the outer environment and internal organs and protects them from any exertion and shock.
Therefore, An animal is then able to walk or run because the muscles of the muscular system work with the bones of the skeletal system. The musculoskeletal system is what enables movement.
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1.
DNA has the limited ability to repair itself when damage
occurs. What might happen to cause damage to the DNA in a
cell?
7. Should parents be allowed to manipulate the genes of their children to select for certain
traits when the children themselves cannot give consent?
Answer:
Maybe
Explanation:
It depends. Is the trait harmful? Parents should do their best to avoid harmful traits for their children, but no not if its not harmful
What is electricity?
A
the energy produced when an object vibrates
B
the energy stored in the bonds of chanical compounds
с
the energy produced by electrons
the energy of motion
Which of the following is considered to be a human vestigial (unused) structure?
A. Eyebrow
B. Appendix
C. Pelvis
D. Chromosomes
Answer:
Appendix
Explanation:
Though new evidence has shown that our Appendix might not be so useless, we still generally consider it vestigial in school textbooks & by word of mouth.
Have a nice April Fool's lol.
2. Apply knowledge and understanding of Mendelian genetics to suggest solutions to problems set
in familiar situations (1-2).
a. Determine the phenotype for each genotype using the information provided about flower color:
I
If green seed is dominant to yellow seed, then
GG______ Gg_______ gg______
Answer:
GG phenotype - Green
Gg phenotype - Green
gg phenotype - Yellow
How does the tRNA-mRNA interaction ensure that the amino acids are added in the correct order?
Answer:
Only the tRNA carrying the next amino acid in the polypeptide chain has the anticodon that binds to the appropriate location on the mRNA.
This system ensures that amino acids are added to the chain in the correct order. At the beginning of translation, the ribosome and a tRNA attach to the mRNA.
hope it helps!
Doctors found out that you are suffering from a serious disease that can only be cured using stem cell therapy. The doctors explain that both adult and embryonic stem cells can be used in your case. Which of the 2 types would you prefer and why? Use facts about each to support your answer.
Answer:
embryonic stem cells
Explanation:
I prefer embryonic stem cells instead of adult stem cells because embryonic stem cells can be differentiate into any cell type whereas adult stem cells can't be differentiated into other cell type. Due to this feature of embryonic stem cells, it can be used for the therapy and the disease can be cured with the help of these embryonic stem cells. So I prefer embryonic stem cells due to their unique ability of differentiation into any type of cell.
What other applications of DNA sequences can you think of?
No link plz :)
Answer:
Molecular biology.
Evolutionary biology.
Metagenomics.
Virology.
Medicine.
Forensics.
Discovery of DNA structure and function.
RNA sequencing.
Explanation:
there u go :D, u said please so i had to.
List as many examples of types of proteins, and give a brief definition of each
1. Structural proteins, maintain cell shape, akin to a skeleton, and compose structural parts of the body, like cartilage and bone in vertebrates.
2. Storage proteins house critical elements that your body needs.
3. Hormonal proteins basically act as your body's chemical "messengers."
4. Enzymes, which are biological catalysts needed for chemical reactions.
What process would you consider essential for maintaining life ?
➜ The important processes essential for maintaining life are:
Nutrition.Respiration.Transportation.Breathing.Movement.Excretion.Control and coordination.After filling out the information above, answer this question in depth (at least 5 sentences). Use your notes as necessary. Why may chromosomal disorders be more detrimental than DNA mutations?
Answer: Chromosomal disorders are the disorders that are caused due to the presence of extra chromosomes, or absence of one or more chromosomes or specific part of the chromosomes. Mutation can be defined as the change that occurs in the genetic makeup of the organism either during copy of genome during replication or due to external factors like exposure to ultraviolet radiations, cigarette smoke, and due to carcinogenic agents.
Explanation:
The change in shape of the chromosome as compared to the normal one also exert influence over the functions. Down syndrome, Klinefelter syndrome, Turner syndrome, and others are the examples of the chromosomal disorders. These syndromes affect the normal functioning of the human being rendering it unfertile, rudimentary development of sex organs, development of traits in opposite sex, induce short life span, poor health, lack of proper mental development, and other abnormal characteristics in the effected individuals. On the other hand mutations are not always detrimental, only a small percentage of mutations can cause genetic disorders. Some mutations can change the genetic makeup by does not affect the functioning of the protein thus the physiological functions of the body are remained restored.
Select the correct answer.
When do you see a partial lunar eclipse?
O A
when the Moon passes through the Earth's penumbral shadow
OB. when the Moon lies exclusively in the Earth's penumbral shadow
Ос.
when a portion of the Moon passes through the Earth's umbral shadow
OD.
when the Moon lies exclusively in the Earth's umbral shadow
Answer:
C. when a portion of the moon passes through the earth's umbral shadow.
Explanation:
A partial lunar eclipse occurs when the Earth passes between the sun and moon but the celestial bodies are not arranged in a straight line. When that occurs, a small part of the moon's surface is covered by the darkest, central part of the shadow of the Earth called the umbra. The rest is covered by the outer part of the shadow, termed penumbra.
Why are phase changes considered physical and not chemical
changes?
Answer:
Phase changes are physical changes that take place when matter changes energy states, but chemical bonds are not broken or formed. ... The phase of a substance depends on the amount of energy the atoms contain. All atoms are in motion. The higher the temperature of an atom, the faster the motion
A friend believes that studying the genetics of dead organisms offers little benefit to mordern-day humans. Do you agree with this statement
Answer: Yes
Explanation:
This is because the study of genetics help to reveal the duplicating of DNA and why people behave the way they are through the traits the acquire from ancestry.
Studying the genetic ancestry of humans reveal why some people are at higher risk or prone to some particular diseases because of what has been passed to them and also finding genes related to certain diseases will help to create new drugs and therapies.
The evaluation of the materials and energy used
for making, selling, using, and disposing of a
product is called a
__________________
reproductive process of amoeba
Reproductive process of amoeba
Science 30 points just need to double-check this concept. Thank you only real answers, please.
Look at the minerals shown below. (1 point)
Both diamond and coal are formed by changes in pressure and temperature below the Earth's surface. Which of these is a step in the formation of the minerals?
A. atoms break up in extreme heat
B. atoms are rearranged in materials
C. atoms combine in water to form solids
D. atoms of magma cool after a volcanic eruption
Answer:
Atoms are rearranged in materials
Explanation:
Name three large molecules that make up the bulk of the food humans eat, and identify the products of each one that result from digestion.
The body breaks down nutrients from food and drink into carbohydrates, protein, fats, and vitamins.
CARBOHYDRATES. Carbohydrates are the sugars, starches, and fiber found in many foods.
PROTEIN.
FATS.
VITAMINS.
Explanation:
I hope this is what your looking for. If not, let me know!
(this answer is from www.msdmanuals.com, turn this information into your own words. I am giving credit. :)
The three large molecules that make up the bulk of the food humans eat are:
CarbohydrateProteinFatsthe products of each one that result from digestion are;
Carbohydrate : Fructose, glucoseProtein : Amino acidFats:monoglycerides and fatty acids.large molecules are the giant molecules that is been found in our daily diet and this includes Carbohydrate, Protein, Fats.
However after digestion of these large molecules after enzymes have reacted on it they will give the products which was listed above.
Learn more about large molecules
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If a plant is an organism then the plants leaves, roots and stems are what level of organization?
Answer:
organ systems
which includes all parts above the ground such as leaves, stems, roots and tubers.
The International Astronomical Union (IAU) defines a constellation by its:
boundary
star pattern
brightest star
Greek name
Answer:
Each constellation is a region of the sky, bordered by arcs of right ascension and declination. ... Together they cover the entire celestial sphere, with their boundaries adopted officially by the International Astronomical Union in 1928 and published in 1930.
So I would say its A : Boundary
Explanation:
- Eijiro <3
Love the pfp by the way! :D
The International Astronomical Union (IAU) defines a constellation by its boundary. The correct option is A.
What is International Astronomical Union?In 1919, the International Astronomical Union (IAU) was established. Its goal is to encourage and protect astronomy in all of its forms, including research, interaction, education, and development, through international cooperation.
The International Astronomical Union (IAU) is the oldest intergovernmental organization of professional astronomers, having been in existence for over a century. It has over 13000 members and 82 national members, among them India.
The IAU designates a constellation by its boundary rather than its pattern, and the same constellation can have multiple representations. Asterisms should be distinguished from constellations.
Thus, the correct option is A.
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Refer to the graphs below. Determine the type of forest these moths inhabit. Use evidence from the Peppered Moth simulation and the graphs as well as scientific reasoning to support your response. l
Answer:good right
Explanation: