Question 1
1. What is the nickname for DNA?
The life giver molecule
O The blue print of life
The backbone of life
O The helix that support life
The nickname for DNA is "The blueprint of life. Therefore, option (B) is correct.
What is DNA?DNA (Deoxyribonucleic acid) is a molecule that carries genetic information in all living organisms, from simple bacteria to complex animals and plants. It is a double-stranded helix made up of nucleotides that contain four nitrogenous bases: adenine (A), thymine (T), cytosine (C), and guanine (G).
The sequence of these bases determines the genetic code that governs the development, growth, and function of all living things. DNA is essential for passing on genetic traits from one generation to the next, and it plays a vital role in the evolution and diversity of life on Earth.
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I WILL MARK BRAINLIEST
Answer:
false
Explanation:
resources from the earth are natural resources
How is the availability of needed natural resources affected by human activities?
Answer:
Humans take natural resources for things such as manufacturing oil, building, making plastics, etc. For example, harvesting trees to cut and make planks of depletes the Earth of a necessary resource for filtering oxygen.
Numerous human activities such as overpopulation, pollution, the burning of fossil fuels, and deforestation have an adverse effect on the physical environment.
What are natural resources?Natural resources are those resources that we get from nature. These resources are free, but they are not available for a lifetime.
The availability and quality of natural resources have been significantly impacted by human activity. Petroleum products are daily used in enormous quantities by companies and cars.
Around 40% of the electricity in the world is produced by coal-fired power plants. The reserves of these finite resources are being depleted by the extensive usage of fossil fuels.
Therefore, climate change, soil erosion, poor air quality, and undrinkable water have all been brought on by changes like these.
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All of the white-taied deer in a forest make up
a. An ecosystem
b. A population
c. A community
d. A food chain
Which of the following statements is false?
a. Performing a cross to produce an F1 generation can be used to show if an allele is dominant.
b. The F1 generation is always hybrids.
c. An F1 cross produces an F2 generation.
d. All of the offspring of a cross may exhibit the same trait.
Answer:
d
Explanation:
cannot be same if they produce f2 will take time to be the same!
Thank you!
The correct answer is d. All of the offspring of a cross may exhibit the same trait as it is only in purebred.
The phenomenon of dominant phenotypes springing up from the allele interactions exhibited on this go is called the precept of uniformity, which states that every one of the offspring from ago in which the mother and father fluctuate through best one trait will seem identical.
What are Inherited traits?Inherited traits tendencies encompass matters along with hair color, eye color, muscle structure, bone structure, or even functions just like the form of a nose. Inheritable tendencies are tendencies that get exceeded down from era to the subsequent era. This would possibly encompass such things as passing pink hair down in a family.
Thus it is clear that All of the offspring of a cross may exhibit the same trait is false.
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Give differents between lytic and lysogenic cycles
Answer:
the spread of the viral DNA
Explanation:
The difference between lysogenic and lytic cycles is that, in lysogenic cycles, the spread of the viral DNA occurs through the usual prokaryotic reproduction, whereas a lytic cycle is more immediate in that it results in many copies of the virus being created very quickly and the cell is destroyed.
What is organism? Please give me a good answer
Answer:
An organism is a living thing or single celled life form that has an organized cell structure, responds to stimuli, reproduces, grows, adapts and maintains homeostasis. It is capable of carrying on life functions .
Explanation:
5. Below shows the model of a water particle. Which of the following
statements about a water particle is incorrect?
oxygen
atom
hydrogen atoms
-A. It is made up of two hydrogen atoms and one oxygen atom.
-B. It is made up of two kinds of molecules.
-C. It is larger than an oxygen atom.
-D. It is also called a water molecule.
Answer:
C
Explanation:
A water molecule the the combination of 1 oxygen atom and 2 hydrogen atoms hence option C is untrue
Describe what the town looked like when the Once-ler first arrived in his
wagon.
In the movie Lorax
When the Once-ler first arrived in his wagon, the town looks like very large surrounded by trees called Truffula trees.
What are the conditions of town look like?A Town looks like very huge with an enormous number of trees. Bears are randomly walking around the trees and eating truffula fruits.
Fishes were lived in a pond, a place called glorious where swamee swans were found.
Therefore, when the Once-ler first arrived in his wagon, the town looks like very large surrounded by trees called Truffula trees.
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Carrying capacity is
A.anything that limits how many organisms can live in an ecosystem.
B.how green plants make carbohydrates.
C.the process of respiration.
D.the number of organisms an ecosystem can support.
Answer:
d
Explanation:
d
You have isolated two known bacteria with slightly different DNA patterns and have placed them in an environment with some unknown elements. After some time, you observe that cell No. 1 now has a different DNA pattern. Your goal is now to find out whether this new DNA was obtained by the cell from transformation or conjugation (and you know that it can only be from one of these two methods). Which of the following would be valid to investigate?
Test cell No. 1 for excised DNA that has been relocated
Test for foreign, similar DNA in the environment
Test for the presence of bacteriophages in the environment
Test for the presence of DNA patterns from cell No. 2 in cell No. 1
1 and 3
1 and 4
1, 2, and 4
2 and 4
Explanation: foreign, similar DNA in the environment
Which is not included in a niche that a
species occupies?
A. the habitat that the species lives in
B. the diet of the species
C. the species' step on a food web
D. the population size of that species
A student wants to know the effect a mutation might have on a species survival. The change causes a rabbit to have mottled brown fur. The student runs a computer simulation for ten generations.What possible conclusions can you draw
Answer: A. Evolution occurred because the allele frequency changed over time.
C. The rabbits with mottled brown fur have a selective advantage that gives them more camouflage from predators.
E. The mutation had a positive effect, allowing those rabbits with the mottled brown fur to survive and reproduce better than those with the brown or white fur
Explanation:
Based on the information given, the possible conclusion that can be drawn from the options given are:
A. Evolution occurred because the allele frequency changed over time.
C. The rabbits with mottled brown fur have a selective advantage that gives them more camouflage from predators.
E. The mutation had a positive effect, allowing those rabbits with the mottled brown fur to survive and reproduce better than those with the brown or white fur.
Therefore, the correct options are A, C and E.
Distinguish between gaseous exchange and respiration
Answer:
Respiration is the process in which food is oxidized to release energy. Complex organic compounds are converted into simpler ones, e.g glucose into CO2 water and energy released. Gaseous exchange is the diffusion of gases from a region of higher concentration to a region of lower one.
Explanation:
Breathing is the physical process by which air is passed on a gaseous exchange surface i.e. ventilation of the gaseous exchange surface. It involves Inhalation and Exhalation.
Gas/Gaseous exchange is the process whereby gasses diffuse across a gaseous exchange surface. In humans, oxygen diffuses from the inhaled air into the blood and carbon dioxide diffuses from the blood into the exhaled air. The gaseous exchange surface here being the Alveoli.
Respiration is the metabolic process whereby organic molecules are broken down to release energy in the cells. In humans, this process takes place inside the mitochondria of cells. Aerobic respiration requires oxygen whereas qnqerobic respiration takes place in absence of oxygen.
Help me plssss I think it’s option D
Answer:
yes d is the answer...
please make me brainlieast..and follow. me
Matthias Schleiden and Theodor Schwann made which contribution to science?
A. Discovered that new organisms do not spontaneously arrive in suitable conditions, but must be brought there.
B. Discovered the process plants use for energy, photosynthesis.
C. Discovered a basic principle of chemistry, that all matter is composed of atoms.
D. Discovered a basic principle of biology, that all plants and animals are made of cells.
Matthias Schleiden and Theodor Schwann made a significant contribution to science as they discovered a basic principle of biology, that all plants and animals are made of cells. So the correct option is option D.
Matthias Schleiden and Theodor Schwann made the contribution of discovering a fundamental principle in biology known as the cell theory. In the 1830s, they independently proposed that all plants and animals are composed of cells. Their work laid the foundation for our understanding of the structural and functional units of life. Together, the contributions of Schleiden and Schwann formed the basis of the cell theory, The correct option is option D.
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What is the relation between leaf venation and the type
of roots?
Answer:
When the veins in leaves are irregularly distributed to form a channel, it is known as reticulate Venation. Plants with reticulate venation in their leaves are likely to have tap roots. Plants like carrot or rose have leaves with reticulate venation and tap roots.
Explanation:
hope it helps :D
Answer:
Explanation:
those plants that have parallel venation leaves have fibrous root system and the plant that have reticulate venation of leaves have tap root system.
What replaces peptidoglycan in the cell wall of Archaebacteria?
Answer:
S-layers
Explanation:
What form is DNA in during mitosis?
A. protein
B. ribosome
C. chromatin
D. chromosomes
Answer:
Chromosomes form is DNA in during mitosis.
Explanation:
In the context of the cell cycle, mitosis is the part of the division process in which the DNA of the cell's nucleus is split into two equal sets of chromosomes.
During mitosis, DNA is in the form of chromosomes, which is option D, as the chromosomes are condensed and highly coiled structures made up of DNA and associated proteins called histones.
During mitosis, a cell divides into two daughter cells that are genetically identical to the parent cell. Chromosomes are critical to this process because they carry the genetic information necessary for the formation of the new cells, and before mitosis begins, the chromatin (a complex of DNA and proteins) in the nucleus of the cell condenses into visible chromosomes. This condensation process involves the compaction of chromatin into a more compact and organized structure.
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Would you classify a fruit, such as an apple, as a cell, tissue, organ, or organ system? explain.
Answer:
organ it has a true roots ,stem and leaf
What plasma membrane component can be either found on its surface or embedded in the membrane structure?
Answer:
Carbohydrates. Carbohydrates are the third major component of plasma membranes. They are always found on the exterior surface of cells and are bound either to proteins (forming glycoproteins) or to lipids
¿Qué tipo de célula apareció primero en la Tierra?:___, y se presentan en seres vivos como las:___ y se caracterizan porque:___. *
Answer:
Célula procariota y procariotas.
Explicación:
La célula procariota es un tipo de célula que apareció por primera vez en la Tierra hace unos mil millones de años. Estos tipos de células están presentes en los procariotas, lo que significa que estos organismos no tienen un núcleo verdadero o una membrana nuclear alrededor del núcleo y otros orgánulos de la célula. El ADN del organismo procariótico se encuentra en una parte central de la célula que se conoce como nucleoide. La pared celular de un procariota actúa como una capa adicional de protección, ayuda a mantener la forma y estructura celular y previene la deshidratación.
This type of gland may be associated with polythelia
O A. Merocrine gland
B. Sebaceous gland
C. Apocrine gland
D. Mammary gland
E. Ceruminous gland
Answer:
functions with the mammary gland
Explanation:
D
what effect will an invasive species have on the carrying capacity of an ecosystem?
a) the carrying capacity will increase for those in competition
b) the carrying capacity for all animals will stay the same
c) the carrying capacity for everyone will decrease and then increase rapidly
d) the carrying capacity will decrease for those in competition for same resource
The effect an invasive species will have on the carrying capacity of an ecosystem is the carrying capacity will decrease for those in competition for same resource.
What is invasive species?An invasive species refers to an organisms such as amphibians,plant, insect, fish, fungus, bacteria that is not native to an ecosystem but it is introduced into the ecosystem and causes harm to the native species. They can harm the environment and also humans.
Therefore, The effect an invasive species will have on the carrying capacity of an ecosystem is the carrying capacity will decrease for those in competition for same resource.
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Viruses can't replicate without a host cell.
A. True
B. False
Answer:
True
hope this helps
have a good day :)
Explanation:
Viruses cannot reproduce by themselves, they must have a living host cell in order to multiply.
The data table below shows the presence or absence of DNA in four different cell organelles.
Information in the table suggests that DNA functions
A. within cytoplasm and outside of the cell membrane
B. both inside and outside of the nucleus
C. only within energy-releasing structures
D. within cell vacuoles
What is the main function of the nervous system? How does it do its main job? (USE YOUR OWN WORDS)
Answer:
The nervous system is the major controlling, regulatory, and communicating system in the body.
Explanation:
It is the center of all mental activity including thought, learning, and memory. Together with the endocrine system, the nervous system is responsible for regulating and maintaining homeostasis.
One can conclude that the are benefited by the . The triggerfish are
Answer:
• One can conclude that the Small Fishes are benefited by the Titan Triggerfish.
• The Triggerfish are Neither Harmed Not Helped.
;)
How do fossils demonstrate evidence of evolution?
A. They show that ancient species share similarities with species now on Earth.
B. They show evidence of species that are now extinct.
C. They are the primary source of evidence of natural selection.
D. Fossils reveal that many species have remained unchanged for millions of years.
Answer:
A
Explanation:
A is the answer because it shows that evolutionary change over time
all of the following are part of the three principles of natural selection except
A.) competition
B.) variation and adaptation
C.) fitness
D.) genetic recombination
Answer:
D: genetic recombination
Explanation:
Answer:
D: genetic recombination
