Answer:
The correct answer is option b. "Helpful variations accumulate among surviving members of the species".
Explanation:
Natural selection is the most accepted theory of evolution, described by Charles Darwin in 1859. This theory explains that by the survival of the fittest, the helpful variations accumulate among surviving members of the species. The variations or mutations that are not helpful for the species are lost by predators and environmental factors, while the helpful variations remain in the surviving members, which leads to the species evolving to have improved characteristics.
Help please!
Below is the base sequence in a segment of one strand of DNA.
ACT GAC
The base sequence in the mRNA that results from this segment of DNA is
O A. TGA CTG
O B. ACT GAC
O C. UGA CUG
O D. AGU CAG
Answer:
C
Explanation:
RNA replaces Thymine with Uracil
If it was DNA the strand would be
TGA CTG
but replace T with U to get...
UGA CUG
Below is the base sequence in a segment of one strand of DNA: ACT GAC, and the base sequence in the mRNA that results from this segment of DNA is UGA CUG, which is in option C.
What is transcription and mRNA?The process of transcription is the first step in gene expression, where the information stored in DNA is transcribed into a complementary single-stranded messenger RNA (mRNA) molecule. During transcription, an enzyme called RNA polymerase reads the DNA sequence and synthesizes a complementary RNA molecule using the base pairing rules between DNA and RNA.
Hence, below is the base sequence in a segment of one strand of DNA: ACT GAC, and the base sequence in the mRNA that results from this segment of DNA is UGA CUG, which is in option C.
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Which image models the action of the enzyme helicase in the DNA replication process? A. a sewing machine B. a zipper C. a glue stick D. a copy machine
Answer:
the answer is a zipper
The replication of DNA is a zipper process. An enzyme called helicase is utilized to divide the two DNA strands that are present before DNA replication begins. Thus, option B is correct.
What is the zipper action of the enzyme helicase?Single-stranded DNA is created as a result of this energy-intensive unwinding reaction, which is needed as a template or reaction intermediate in DNA replication, repair, and recombination.
It splits the two DNA strands by unwinding the double helix. Helicase prepares the DNA strands for replication by separating and untwisting them.
It splits the two DNA strands by unwinding the double helix. Helicase prepares the DNA strands for replication by separating and untwisting them.
Therefore, DNA helicases accelerate the breaking of the hydrogen bonds that bind the double-stranded DNA's two strands together.
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How can photosynthesis be related to cellular respiration?
They both have the same reactants (need the same things).
What's produced (made) by one is needed (the reactants) for the other.
They both produce the same products.
Answer:
B
Explanation:
What's produced (made) by one is needed (the reactants) for the other.
CO2 and H2O are produced in cellular respiration, CO2 and H2O are used in photosynthesis.
What animal behavior is this frog showing?
Answer:
We don't Know there is no image
Explanation:
The nervous system interacts with the endocrine system by.
A. sending neurotransmitters to endocrine target cells
B. sending neurotransmitters to neuroendocrine cells
C. receiving messages from hormones
D. translating messages from endocrine cells.
Answer:
c. receiving messages from hormones.
Explanation:
a primary function of the sympathetic and parasympathetic nervous systems is to interact with the endocrine system to elicit chemicals that provide another system for influencing our feelings and behaviours.
A gland in the endocrine system is made up of groups of cells that function to secrete hormones. A hormone is a chemical that moves throughout the body to help regulate emotions and behaviours. When the hormones released by one gland arrive at receptor tissues or other glands, these receiving receptors may trigger the release of other hormones, resulting in a series of complex chemical chain reactions. The endocrine system works together with the nervous system to influence many aspects of human behaviour, including growth, reproduction, and metabolism. And the endocrine system plays a vital role in emotions. Because the glands in men and women differ, hormones also help explain some of the observed behavioural differences between men and women.
which statement best describes a cell?
Answer:
A cell is the smallest unit of life.
Explanation:
A cell is a compartment that contains DNA and regulates when genes are turned on and off. Cells are located in the Mitochondria.
The Sun and stars do not move.
T or F
False both the sun and the stars change and move around.
Polycythemia is a disease which causes an excessive number of red blood cells to be produced.
The disease is the result of a faulty gene. How would the flow of blood be affected by this
condition?
•Blood flow rate will increase.
•Blood viscosity will decrease.
•Blood pressure will increase.
•Blood volume will decrease.
Suggest ONE reason why some plants have no dispersing seeds
Answer:
Some plants don't use seeds to grow.
Explanation:
For example bananas grown from bulb or rhizome. They are the result of a genetic selection.
Answer:
Plants make seeds that can grow into new plants, but if the seeds just fall to the ground under the parent plant, they might not get enough sun, water or nutrients from the soil. Because plants cannot walk around and take their seeds to other places, they have developed other methods to disperse (move) their seeds.
Explanation:
Both hyperthyroidism and hypothyroidism can cause a goiter, a swelling of the thyroid gland. You notice that a patient has a swollen thyroid gland. Before you order any lab tests, you could make two measurements during a physical exam to help determine the cause of the goiter. What measurements could you make and why would they be helpful?
Answer:
a=iw
Explanation:
hurricanes come from
Answer:
Hurricanes are the most violent storms on Earth. They form near the equator over warm ocean waters. Actually, the term hurricane is used only for the large storms that form over the Atlantic Ocean or eastern Pacific Ocean. ... As the wind passes over the ocean's surface, water evaporates (turns into water vapor) and rises.
Answer:
Hurricanes form over the warm ocean water of the tropics. When warm moist air over the water rises, it is replaced by cooler air. The cooler air will then warm and start to rise. This cycle causes huge storm clouds to form.
Explanation:
Consuming too much protein or excess amino acids can contribute to
Multiple Choice
arthritis
dehydration
Alzheimer's disease
stroke
Which of the following nations does not possess nuclear weapons?
Answer:
Spain
Explanation:
Brainliest Answer Please!
Answer:
The answer must be between 20 and 5000 characters
Which of these is an organ of the endocrine system?
O A. Liver
B. Hypothalamus
C. Heart
D. Cerebellum
Answer:
B. Hypothalamus
Explanation:
The hypothalamus is part of the brain.
Answer:it’s hypothalamus
Explanation:
took test
When two alleles "blend in" , or "mix" together it is known as -
Incomplete dominance
Codominance
Compare and contrast the elevated temperature of someone who is exercising vigorously and someone who has an infection.
Answer: seen below
Explanation:
In vigorous exercise, your brain and body do everything they can to cool you off by increase the flow of blood to the skin where it can cool down with the aid of sweating , while in someone who has an infection they push the temperature inside your body to extreme levels by strengthening your immune system resistance to the infection, the immune system deliberately raises your body temperature as part of its strategy to kill the infection attacking you.
What is the benefit of doing group work in class? Are there any drawbacks?
Answer:
u should know this, it is an opinion
Planets are round because of gravity.
O True
O False
Marine biology
LIST 5 things that the subphyla of Chelicerata lack or make up them different for the other 3 subphylum
Answer:
The subphylum Chelicerata (New Latin, from French chélicère, from Greek χηλή, khēlē "claw, chela" and κέρας, kéras "horn")[1] constitutes one of the major subdivisions of the phylum Arthropoda. It contains the sea spiders, arachnids (including scorpions, spiders, and potentially horseshoe crabs[2]), and several extinct lineages, such as the eurypterids.
Answer:
It contains the sea spiders, arachnids (including scorpions, spiders, and potentially horseshoe crabs[2]), and several extinct lineages, such as the eurypterids.
Write a story about visiting the World Video Game Hall of Fame. Which video game
did you most want to see and why? Use describing words from the Article in your
answer
Answer:
lol
Explanation:
How does DNA guides the making of a protein?
Answer:
The type of RNA that contains the information for making a protein is called messenger RNA (mRNA) because it carries the information, or message, from the DNA out of the nucleus into the cytoplasm. ... Through the processes of transcription and translation, information from genes is used to make proteins.
For which process are some plant-eating organisms dependent on microorganisms? *
causing disease
digesting food
providing shelter
producing waterHow does the need to belong contribute to a culture of football hooliganism?
Answer:
digesting food
Explanation:
plants depend on mico organism on digesting food
What receives oxygen-rich blood from the lungs?
A.Right Atrium
B.Right Ventricle
C.Left Atrium
D.Left Ventricle
How is the population of the lionfish normally kept in check in its native habitat?
A variety of species of Galapagos finches evolved from one original species long
ago through the process of *
asexual reproduction
ecological succession
natural selection
selective breeding
Which of these terms is applicable in a discussion of accretion?
Orbit
Quasar
3-dimensional
Diameter
PLEASE HELP!!
How is smallpox different when it comes to making a vaccine?
Answer:
"The smallpox vaccine does not contain smallpox virus and cannot spread or cause smallpox. However, the vaccine does contain another virus called vaccinia which is live in the vaccine. Because the virus is alive, it can spread to other parts of the body or to other people from the vaccine site."
[Copy and pasted from a medical website]
Why would teens choose to vape, when we have the last 30 years of evidence proving the
consequences of smoking tobacco products ?
Answer:
look down below
Explanation:
Many teens consider the brand to be an entirely different device from an e-cigarette or just smoking in general. Teens also think that vaping is safer than smoking, which it really isnt if they havent already used tobaccco products. Another point is peer pressure. Most teens succumb to it.
According to the Big Five personality theory, someone who is organized, self-disciplined, and
always turns their work in on time would score high on the trait of...
Conscientiousness
Openness to Experience.
Agreeableness
Extroversion
Answer:
D. Conscientiousness
Explanation:
The bottom two are incorrect, i got this question correct.
According to the Big Five personality theory, someone who is organized, self-disciplined, and always turns their work in on time would score high on the trait of conscientiousness. Hence, option A is correct.
What is conscientiousness?One characteristic that is frequently linked to awareness is conscientiousness. People that are conscientious are typically organized, show self-control, and have excellent time management skills. They are renowned for being hard workers and excellent team members.
If someone values duties, establishes and prioritizes long-term goals, and makes wise decisions, it is quite likely that they are conscientious. Because they work so hard and are so determined, people with this quality frequently achieve great success.
Therefore, option A is correct.
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The following diagram shows the branching tree for four kingdoms and some of their shared derived characteristics.
What shared characteristic can be written at point X? Use complete sentences to explain your answer.
Answer:
Mostly Multicellular .