Answer:
The sea otters can close their nostrils and their auditory passages in the water.
The fifth toe of each leg is longer, which allows them to swim more easily, but hinders their movement on land.
Their body has great agility to float, due to the excellent lung capacity of these otters, and the air that can trap...
They can walk but in a somewhat clumsy way, usually moving with small jumps.
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How do toothed whales produce general communication sounds?
Answer:Toothed whales do not make the long, low-frequency sounds known as the whale song. Instead they produce rapid bursts of high-frequency clicks and whistles. Single clicks are generally used for echolocation whereas collections of clicks and whistles are used for communication.
How dose natural selection affect population by?
Answer:
individuals that develop beneficial traits have a better chance of survival, and are then able to pass on their genes. Eventually, if enough of those genes are passed on, that gene will become more prominent within the population.
the act of doing what's best for the group is called__
Answer:
being a team player :)
Explanation:
The act of doing what's best for the group is called altruism. This is an act of selflessness were the practice of concern is for the welfare of others.
(from go ole)
How does an orchid benefit from growing in a tree?
Answer:
The orchids benefit in several ways. They get more sunlight and are more easily visited by the moths which pollinate them.Orchids do not harm the trees they grow in. Their roots stay on the bark of the tree; they do not take water or nutrients from the tree.
Which is involved in refraction? A. colors B. shadows C. speed of light D. absorption of light
the speed of light involved in refraction
How does binomial nomenclature help scientists?
help!!!
Answer:
Explanation:
Bionomial nomenclature helps scientists by helping them classify organisms. This would be a two-name system that scientists use that describes the genus and species of the organism.
The poles of the planet experience many months in a row when the Sun
never sets. Why are the North and South poles still relatively cold during
these times?
The missing options are:
A. The Sun is still low in the sky, so the solar intensity is low.
B. The Sun is low in the sky, so the solar intensity is high.
C. The poles were cooling for six months with no sunlight, and it takes a long time to warm up.
D. Both A and C are correct.
The correct answer is D. Both A and C are correct.
Even though the Sun never sets for many moths in the North and South poles, these are still cold because for them to warm up:
The Sun's rays should impact directly on the poles, as it happens with the rest of the Earth during summer.As they are large pieces of land, it takes a lot of time to warm them, and it takes more than six months to do so, even more with the Sun no impacting directly on them.In conclusion, the poles are cold because they are never positioned directly in front of the Sun since the Earth has an inclined axis. As a result, the rays directly impact the rest of Earth during its yearly journey around the Sun, resulting in high solar intensity, with high temperatures, during summer. Besides, as the Sun's rays have a very low intensity in the poles, they could never warm up these parts of Earth in six months; they need more time.
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Birds ______________ when resources such as food and nesting locations are low. Migrating is a behavioral adaptation.
Answe
Explanation:
Birds __MIGRATES__when resources such as food and nesting locations are low. Migrating is a behavioral adaptation.
Answer:
Person above was right. Birds migrate when resources are low.
Explanation:
Chrome 2022.
The Himalayas in central Asia are the tallest mountains in the world. But fossils of seashells can be found high in these mountains, far from any ocean.
How do you think they got there?
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Answer:
At one point in Earth's history the mountains were under water
Explanation:
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explain the effects on anaerobic respiration on plants and animals
Answer:
Anaerobic respiration in plants produces ethanol (C2H5OH) whose accumulation may kill the plant, whereas in animals anaerobic respiration produces lactic acid (CH3CH(OH)COOH) that however cannot cause death of animal but lead to minor muscle cramps, but they can be cured with hot water bath or a massage.
This causes a population to reach its carrying capacity:
1. Habitat
2. Exponential growth
3. Niche
4. Limiting factor
What is the term for a strong response to a harmless antigen in the environment? Notice the word Harmless in the question.
a. inflammatory response
b. an autoimmune disease
c. cell-mediated immunity
d. an allergy
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A population of deer has a carrying capacity of 875 deer, with a maximum rate of increase of 1.0 per individual per year. Using the logistic population growth model, what is the approximate population growth rate for a population of 420 deer?
148 deer per year
218 deer per year
307 deer per year
474 deer per year
Answer:
Option B, 218 deer per year
Explanation:
As we know
[tex]\frac{dP}{dt} = kP (1- \frac{P}{K})[/tex]
Where K is the carrying capacity
K is the rate constant
dP/dt is the change in population per unit time and
P is the population
Substituting the given values we get
[tex]\frac{dP}{dt} = k * 420 * (1-\frac{420}{875})\\= 1 *420 * (1-0.48)\\= 218[/tex]
Option B is correct
Answer:
218!
Explanation:
took the flvs test and got it correct
How might biology help you to better understand environmental issues?
Answer:
An understanding of biology can help you make choices and decisions that affect your health. Biologists and other scientists research environmental issues such as pollution, biodiversity,land conservation, and natural resource use.
Explanation:
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describe how a non-resistant Staphylococcus aureus bacterium can produce a bacterium that is resistant to methicillin
Explanation:
characteristics of enzymes
S. aureus can develop resistance to methicillin and other -lactam antibiotics by expressing a foreign PBP, PBP2a, which is resistant to methicillin but can perform the functions of the host PBPs.
What is Staphylococcus aureus?Staphylococcus aureus is a Gram-positive round-shaped bacterium that pertains to the Bacillota and is a popular member of the body's microbiota, commonly found in the upper respiratory tract and on the skin.
S. aureus can develop resistance to methicillin and other -lactam antibiotics by expressing a foreign PBP, PBP2a, which is resistant to methicillin but can perform the functions of the host PBPs.
Thus, in this way a non-resistant Staphylococcus aureus bacterium can produce a bacterium that is resistant to methicillin.
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If a strand of DNA has the nucleotide sequence: AATGCT, what is the complementary sequence of RNA nucleotides that would be made from it?
Answer:
Explanation:
All the best
Which of the following steps happens first during transcription?
A. RNA polymerase reaches the end of the gene.
B. RNA polymerase reaches the beginning of a gene.
C. RNA polymerase pulls apart the double helix.
D. RNA polymerase produces mRNA from DNA.
The correct option for the given question about Genetic transcription is Option B) RNA polymerase reaches the beginning of a gene.
What is Genetic Transcription?It is one among the initial steps in the expression of genes. The transport of genetic information from DNA to proteins occurs sequentially through the processes of transcription and translation. During transcription, just one strand of DNA known as the template strand is replicated, and the resulting RNA is referred to as messenger mRNA.Transcription's primary goal is to create an RNA copy from a DNA sequence. The data required to encode a protein is carried by the RNA transcript.RNA polymerase is the key enzyme responsible for Genetic transcription.It creates a complementary RNA strand from single strand DNA.
Thus we conclude that during the first step of genetic transcription RNA polymerase reaches the beginning of a gene.
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Answer: B <3
Explanation:
Which best describes a recessive allele?
Answer:
B (imo)
Explanation:
Answer:
The answer for the question is D
Which molecules are used for releasing energy in the cell
1. glucose, carbon dioxide and water
2glucose, oxygen and amino acids
3glucose and oxygen
4glucose and amino acids
Answer: glucose and Oxygen
Explanation: Glucose is converted to water and carbon dioxide in mitocondries and energy is released. Oxygen is needed to reaction.
Amino acids can be converted to energy but that is not primary purpose of amino acids.
_____ in carbon dioxide in your red blood cells, which causes _____ in pH, causes your breathing to speed up. See Concept 42.6 (Page) View Available Hint(s) _____ in carbon dioxide in your red blood cells, which causes _____ in pH, causes your breathing to speed up. See Concept 42.6 (Page) A decrease ... a drop An increase ... a rise An increase ... a drop A decrease ... a rise Actually, it is the rise and fall of oxygen, not carbon dioxide, that controls breathing.
Answer:
1 An increase
2 A drop
Explanation:
What part of the bacteriophage attaches and anchors itself to the bacteria?
Answer: Proteins in the "tail" of the phage bind to a specific receptor (in this case, a sugar transporter) on the surface of the bacterial cell. Entry: The phage injects its double-stranded DNA genome into the cytoplasm of the bacterium.
Explanation:
Compare blood cells to plant cells
Answer:
Plant cells are encompassed by a rigid cell wall, while human white blood cells have a plasma membrane.
Explanation:
Why are flowers so important to a plant?
Answer: Flowers help purify water and also helps hold the soil in place and prevent erosion.
CREDIT: fed.us
Answer:
The primary purpose of a flower is reproduction. Since the flowers are the reproductive organs of plant, they mediate the joining of the sperm, contained within pollen, to the ovules — contained in the ovary. Pollination is the movement of pollen from the anthers to the stigma.
Explanation:
What's Chlorophyll ?
Answer:
Chlorophyll is any of several related green pigments found in the mesosomes of cyanobacteria and in the chloroplasts of algae and plants. Its name is derived from the Greek words χλωρός, khloros and φύλλον, phyllon. Chlorophyll is essential in photosynthesis, allowing plants to absorb energy from light.
Explanation:
Explanation:
Chlorophyll is a green photosynthetic pigment found in plants, algae, and cyanobacteria. Chlorophyll absorbs mostly in the blue and to a lesser extent red portions of the electromagnetic spectrum, hence its intense green color.
List 2 organelles found in an animal cell and explain how those 2 organelles benefit the cell.
Answer:
I chose nucleus and the mitochondria
Explanation:
The nucleus is particularly important among eukaryotic organelles because it is the location of a cell's DNA. Two other critical organelles are mitochondria and chloroplasts, which play important roles in energy conversion and are thought to have their evolutionary origins as simple single-celled organisms.
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Cell includes a cell membrane, cytoplasm and cell organelles. Cell organelles are mitochondria, golgi bodies, nucleus, ribosomes, vacuoles, lysosomes, centrioles, etc.
What are cell organelles?Cell organelles are the structures present in cell that are responsible to carry out necessary processes and maintains homeostasis.
This can include nucleus, mitochondria, golgi bodies, ribosomes, etc.
Nucleus: Nucleus is a membrane bound cell organelle that contain an entangled thread like structure called as chromatin material. This chromatin material condenses at the time of cell division and forms chromosomes. Nucleus also contain nucleolus that helps in formation of ribosomal units. it contains a fluid called as nucleoplasm.Ribosome is the organelle that is involved in formation of protein. It has two subunits i.e. a smaller one and a bigger one. these subunits are joined at the time of protein synthesis and are formed in nucleolus of nucleus.
Thus, these were explanation of two cell organelles along with their explanation.
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is gold a insulator or a Conductor
Answer:
Hey mate......
Explanation:
This is ur answer......
Gold is a poor insulator and a good conductor, having a resistivity of 22.4 billionths of an ohm-meter. As with lead, gold is widely used to make electronic contacts. Unlike many other metals, it is very chemically stable and resists the corrosion that degrades other types of electrical connectors.
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All matter has the same properties.
A.True
B.False
Answer:
True
Explanation:
Answer:
False.
Gaseous matter is non-visible, solid and liquids are visible--already making them different. All matters (including the 4th matter) have different chemical and physical properties.
What three structures are responsible for aiding the process of making transporting or storing protein
Answer:
the nucleus, ribosomes, the rough endoplasmic reticulum and the Golgi apparatus
Explanation:
How did people in the North use natural resources differently than people in the South? (5 points) a They were more industrial, while Southerners were more agricultural. b They protected their natural resources better than the Southerners. c They used their own natural resources to run their factories and farms. d They were more agricultural, while Southerners were more industrial.
Answer:
i would choose A.
Explanation:
the north was definitly more industrial
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Thay protected their natural resources better than the sotherners
Agriculture is the main sources
lincome of Nepal Justify
this statments
give me long answer
Answer:
Agriculture is the mainstay of the economy, providing a livelihood for more than 70% of the population and accounting for a little over one-third of GDP,” according to the CIA. “Industrial activity mainly involves the processing of agricultural products, including pulses, jute, sugarcane, tobacco, and grain.