Answer:
D Glucose
Explanation:
If a DNA sample contains 38% adenine, what percent of thymine, cytosine, and guanine must it contain?
Answer:
A and T have the same amount and also C and G:
T=A=38%
C=G=12%
) The stem of a plant is growing upward while the roots grow downward. Which of these stimuli correctly describes the response of the plant?(1 point) touch light gravity temperature
Answer:
The correct answer is ''gravity.''
Explanation:
Tropisms are movements or changes in posture that a living being normally makes in response to a continuous environmental stimulus. Plants have hormones that respond to the gravitational impulse of our planet. Gravity deeply influences their growth and development (positive geotropism) and plants have been found to bend in response to gravity due to redistribution of the plant hormone auxin at the root tip, so that auxin is redistributed to the underside of a root that grows when it is rotated 90 degrees, the stems will still grow upward, away from the center of the Earth (negative geotropism), just as roots will always grow in the reverse direction (positive geotropism).
Answer:
The correct answer is gravity
Explanation:
I just took the quiz lol.
If you could say thanks and rate, that would be great!
Whether a mutation is helpful or harmful depends in part on an organism's
A. appearance
B. size
C. health
D. environment
The image shows the beak shapes of four different tinches observed by Charles Darwin on the Galapagos Islands Darwin observed that broad-boaked inches
prefer to eat large, hard seeds, while finches with narrow beaks cat small, soft seeds
What did Charles Darwin infer from this study that led to the development of the Theory of Evolution?
Anches with broad breaks have Nigher survival rules than tinches with nurow beaks
Finches with narrow beaks gradually evolve broader beaks to feed on all types of seeds
The finches evolved from different ancestors with different shapes of beaks
. The finches evolved from a common ancestor and developed different break shapes to adapt to the food available
Answer:
The mechanism that Darwin proposed for evolution is natural selection. Because resources are limited in nature, organisms with heritable traits that favor survival and reproduction will tend to leave more offspring than their peers, causing the traits to increase in frequency over generations.
Explanation:
On the islands, Charles Darwin discovered several species of finches. He found out that different species of finches varied from island to island. Besides elaborating his thoughts on natural selection, this also helped him in his investigation on the evolutionary changes of the finches. Beaks changed as the birds developed different tastes for fruits, seeds, or insects picked from the ground or cacti. Long, pointed beaks made some of them more fit for picking seeds out of cactus fruits. Shorter, stouter beaks served best for eating seeds found on the ground.
Natural selection is the theory behind evolution put forth by Charles Darwin. Given the scarcity of resources in nature, animals with heritable features that promote survival and reproduction will typically produce more offspring than their contemporaries, leading to an increase in the frequency of such traits across successive generations.
Which observations about the Galapagos Islands did Charles Darwin make?He discovered a remarkable population of plants, birds, and reptiles in the Galapagos that had evolved independently of the mainland, but that frequently differed on nearly identical islands next to one another and whose characteristics he could only explain by a slow evolution of the various species.
Charles Darwin discovered a number of finch species on the islands. He discovered that several finch species vary from island to island. The Galapagos Islands are well-known for being the location where Charles Darwin discovered many previously unknown species of animals, which inspired him to develop the theories of natural selection, survival of the fittest, and evolution.
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What is uncoiled stringy DNA called
Answer: chromatin
Explanation:
What is uncoiled, stringy DNA called? It is called chromatin. How many pieces of chromatin does a human diploid cell have? Human diploid cells have 46 pieces of chromatin.
Where in the United States is there measurable evidence that the continents are moving relative to one another.
Answer:
the san Andreas fault line
Explanation:
United States is there measurable evidence that the continents are moving relative the san Andreas fault line.
Where is United states?The United States, sometimes known as the United States of America, commonly referred to as America, is a federal republic with 50 states in North America.
The 48 contiguous states that are located in the central latitudes of the continent are joined by Hawaii, an island state in the center of the Pacific Ocean, and Alaska, a state at the far western end of North America.
The conterminous states are encircled by Canada to the north, the Atlantic Ocean to the east, the Gulf of Mexico and Mexico to the south, and the Pacific Ocean to the west.
Therefore, United States is there measurable evidence that the continents are moving relative the san Andreas fault line.
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Describe the
relationship
between the age
of rock layers and
an unconformity
Answer:
Laws of stratigraphy help scientists determine the relative ages of rocks. This law states that deeper rock layers are older than layers closer to the surface. An unconformity is a gap in rock layers. They occur where older rock layers eroded completely before new rock layers were deposited.
Explanation:
The study of rock strata is called stratigraphy. The laws of stratigraphy can help scientists understand Earth’s past. The laws of stratigraphy are usually credited to a geologist from Denmark named Nicolas Steno. He lived in the 1600s.
Hope this helps!
Brain-List?
Which of the following is true about RNA?
tRNA brings in an amino acid and bonds with mRNA
mRNA carries the code of rRNA to the nucleus.
mRNA is made from tRNA during transcription.
rRNA helps tRNA make a copy of the DNA gene.
Answer:
The right answer is
tRNA bonds with mRNA, bringing in amino acids.
Explanation:
What ecosystem services do you think a grassland might provide for people?
Answer:
covett
Explanation:
non
non at all
(⌐■_■)
identify two processes that produce the basalt
Basalt rock formed on the cooling and crystallization of magma released from volcanoes.
What is basalt rock?The extrusive igneous (volcanic) rock known as basalt is black in color, low in silica content, and relatively high in iron and magnesium.
The most prevalent type of lava rock is basalt, which forms as magma, or liquid rock, and rises from the deep Earth at volcanoes. At several of the world's active rifts now, basalt is forming, including those in Iceland, the Red Sea, the East African Rift Valley, and the Rio Grande Valley in New Mexico and Colorado.
Basalt is used in construction (e.g. as building blocks or in the groundwork), making cobblestones (from columnar basalt) and in making statues. Heating and extruding basalt yield stone wool, which has potential to be an excellent thermal insulator.
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What type of isotopes are termed radioactive isotopes?
The radioactive isotopes of an element are called radioisotopes.
The number of protons in the atomic nuclei of different isotopes of the same element is the same, but the number of neutrons varies. The radioactive isotopes of an element are called radioisotopes. They can alternatively be described as atoms with surplus energy in their nucleus or unstable neutron-proton combinations.An isotope will become radioactive if the neutron to proton ratio exceeds a certain threshold or the atomic number is higher than 83.According to the idea, an isotope will become radioactive if its atomic number is higher than 83 or if the neutron-to-proton ratio rises over one or becomes excessively large.Gamma rays, beta particles, and alpha particles are the three types of radiation that are released. Typical instances of radioactive isotopes are Arsenic−74, Iodine−131 and Cobalt−60.learn more about radioactive isotopes here: https://brainly.com/question/18640165
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What's the definition of repel in biology ?
Answer: To resist; to ward off or to draw away by means of force
Answer:
(1) To resist; to ward off. (2) To draw away by means of force. Supplement.
Explanation:
I don't know I looked it up...
1.If a DNA molecule has 40% Cytosine, what percent of it would be Adenine?
2.Please help describe the base-pairing rules in any DNA molecule
Answer:
The correct answer is -
1. Adenine - 10%
2. A-T and C-G always in DNA.
Explanation:
1. The total amount of all nitrogenous bases are equally 100% and which includes an equal amount of C and G and an equal amount of A and T in the DNA molecule.
So, Cytosine = 40%, Guanine= 40%
total = 80%
therefore, the A and thymine would be - 100 - 80 = 20
A+T = 20
A= 10, and, T = 10%
2. The complementary base pairing rule explains that DNA base pairs are Adenine always binds with thymine and cytosine bind with guanine only. Purine binds with pyrimidine always except - A-C or G- T.
If a cell begins the cell cycle with 46 chromosomes, how many chromosomes will be in each of the two daughter cells produced by cell division?
Answer:
4
Explanation:
(04.01 LC)
Which of the following is a molecule with more than one element?
O Atom
O Bacteria
Compound
Organism
Answer:
atom
Explanation:
atom atom atom atom
Sperm are produced in the
Glands
sperm ducts
testes.
urinary bladder
Answer:
Testes I cant explain it but this has to be at least 20 characters long
Answer:
Testes
Explanation:
Right off edge~
1. __________________ are the basic building blocks of all matter, living and nonliving. They are made up of subatomic particles (__________________, __________________, __________________).
Answer: Atoms are the basic building blocks of all matter, living and nonliving. They are made up of subatomic particles (neutrons, protons, and electrons)
Explanation:
Hope thats correct and helps! :)
What is a wave?
A. a circular path for energy
B. a back and forth or up and down motion
carrying energy
C. a straight line of matter
D. a material that transfers energy
Answer:
B.
Explanation:
Which material should you use so that the area is cool in terms of temperature?
Answer: red bricks
Explanation:
I NEED HELP FAST!!!!!!!
Weathering is a process in the rock cycle. How does weathering contribute to the formation of rocks?
Here are the answers
It increases the temperature and creates metamorphic rock.
It deposits sediment and forms sedimentary rock.
It breaks down rock into smaller pieces that can become sedimentary rock.
It causes lava to cool and harden into igneous rock.
Answer:
It breaks down rock into smaller pieces that can become sedimentary rock.
Explanation:
Weathering is the physical disintegration and chemical decomposition of rocks to form sediments and soils.
The process of weathering is very important for the formation of rocks because it breaks down rocks into smaller pieces.
By virtue of this, these tiny rock pieces called sediments are gathered and assembled together through erosion. They are then taken away and deposited in basins where they are transformed into sedimentary rocks. This is a very vital process in the rock cycle.4. Why are rattlesnakes necessary to the balance of life in a forest?
They eat rodents and are eaten by owls and hawks.
They are not useful to the balance of life and are dangerous to humans.
They compete with raptors for the same food source.
They eat insects which and are then eaten by raptors.
The rattlesnakes are necessary to the balance of life in a forest as they eat rodents and are eaten by owls and hawks. Therefore, option (A) is correct.
What are the characteristics of rattlesnakes?Venomous rattlesnakes belong to the genera Crotalus and Sistrurus, which are members of the subfamily Crotalinae. All poisonous snakes are snakes.
Rattlers are profoundly particular, venomous reptiles with huge bodies and triangle-molded heads. Because of their distinctive "rattle" at the tip of their tails, they are one of the most well-known groups of snakes.
Rattlers are tracked down in pretty much all aspects of the mainland US, however they're particularly normal in the Southwest. Additionally, rattlesnakes can be found in South America, Central America, and Mexico.
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Name the respiratory structure in the amoeba
Answer:
The respiratory structure of an amoeba is called the mitochondria. This is because amoebas are eukaryotes and use mitochondria to respire.
!!!!Someone help me with this!!!
!!!Eukaryotic Cell Structure and Function !!!!(Will Give Brainliest Answer)!!!
4. Cell wall, chloroplast and plastids
5. Plasma membrane, ribosomes, cytoplasm and DNA
6. Eukaryotes have a nucleus while prokaryotes don’t have one
7. Nucleus controls/regulates cell’s activities.
Nucleus consists of nuclear membrane, nucleoplasm, chromatin fibers, nucleolus and endosomes
I’m not sure how to answer the last question
Sorry if any answers are wrong
what does this quote mean?
Answer:repeat or copy out (a group of words from a text or speech), typically with an indication that one is not the original author or speaker.
Explanation: An example of a quotation is when you take a passage from Shakespeare and repeat it as written without changing any of the words. The prices or bids cited.
Can anyone answer this its urgent...
srrry if the cropping is bad
Answer:
The answer for this question is the ureotelic
Answer:
b?
Explanation:
the dunes in the park are formed by
a)rainstorms
b)tornadoes
c)earthquakes
d) strong winds
Lia's mother had a test to find out more about the baby she is expecting. The partial karyotype indicates: BB for eye color, dd for dimples (dimples are a dominant trait), and XY for sex. What can you tell about this baby?
It will be a boy with brown eyes and no dimples
It will be a girl with brown eyes and no dimples
It will be a boy with blue eyes and dimples
We cannot determine the inheritance from this information
Answer:
Its A
Explanation:
It will be a boy with brown eyes and no dimples. Therefore, the correct option is option A among all the given options.
What is partial karyotype?A karyotype is the overall look of a species' or an individual organism's chromosomes, which mostly includes their sizes, number, and forms. A karyogram, also known as an idiogram, is a graphical representation of a karyotype.
Lia's mother had a test to find out more about the baby she is expecting. The partial karyotype indicates: BB for eye color, dd for dimples (dimples are a dominant trait), and XY for sex. It will be a boy with brown eyes and no dimples.
Therefore, the correct option is option A.
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8. What are some general characteristics of an invasive species?
Answer:
they are not from the land that they are currently residing in
they destroy the ecosystem of the habitat they are currently in, as in they harm the native animals by eating all their food, eating them, etc.
they take up space too
Explanation:
There is more genetic variation ________________ a population that ________________ populations.
Answer:
1. Within
2. Among two different
Explanation:
There is more genetic variation WITHIN a population than AMONG TWO DIFFERENT populations. This is evident in the fact that phenotypic variation occurs at a greater length within a population resulting from natural selection based on survival and the ability to produce offspring strategy. This unlike populations that consist of two or more different populations mingled together.
1. What is the difference in the base pairing rules for DNA and RNA?
2. The what would be the complementary DNA strand for the following piece of DNA?
ATG GCT CTA CGT AAG
3. How would that change if the complementary strand was RNA?
Answer:
1.
DNA
A-T
G-C
RNA
A-U
T-A
G-C
2.
TAC CGA GAT GCA TTC
3.
AUG GCU CUA CGU AAG