Answer:
soil erosion and lack of nutrients in the soil
Explanation:
the weak, overgrazed pasture will be highly susceptible to interrill, rill and gully erosion, which can lead to: loss of valuable topsoil; reduction in soil organic matter; and reduction in nitrogen pool to feed your forage. overgrazing increases soil compaction
help please
A cell is in a solution that contains dissolved oxygen. What occurs when the cell uses oxygen for respiration?
A.
Oxygen will be carried across the cell membrane by special transport molecules.
B.
Oxygen will be held in place within the solution by special transport molecules.
C.
Oxygen in the cell will naturally diffuse into the solution.
D.
Oxygen in the solution will naturally diffuse into the cell.
Answer:
D.
Explanation:
As the oxygen inside the cell is utilized by the cell for respiration, therefore the concentration of oxygen inside the cell decreases and the oxygen in the solution naturally diffuses inside the cells through simple diffusion.
What is dissolved oxygen?
Dissolved oxygen is the amount of oxygen that is dissolved in a particular solvent. The dissolved oxygen in water comes from the atmosphere. The aquatic plants that produce the oxygen also contribute to the dissolved oxygen in water bodies.
Aquatic organisms require dissolved oxygen for respiration as they cannot take up oxygen from the atmosphere. Oxygen in water can be measured as milligrams per liter or the percent saturation.
In the RBCs, the oxygen combines with the hemoglobin and is transported by hemoglobin-facilitated diffusion or through simple diffusion in which the oxygen crosses the plasma membrane and is transported to the blood plasma through diffusion.
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The systemic circulation is movement of blood from the ______ side of the heart to the systemic cells of the body and back to the ______ side of the heart.
Systemic circulation involves the movement of blood from the right ventricle of the heart to the cells of the body and back to the heart through the right atrium.
Systemic circulationIt is a form of blood circulation through which functional blood is supplied to all the cells and tissues of the body.
The system starts with oxygenated blood leaving the right side of the heart through the ventricle.
The blood travels through arteries to different cells/tissues of the body, supplies them with oxygen and vital nutrients, and picks up waste materials simultaneously.
Deoxygenated blood then travels through veins back to the heart through the right atrium.
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4. Changing the temperature affects the shape of an enzyme How might an incred
temperature affect the enzyme's function in the cell?
Answer:
Higher temperatures disrupt the shape of the active site, which will reduce its activity, or prevent it from working. The enzyme will have been denatured . Enzymes therefore work best at a particular temperature. Proteins are chains of amino acids joined end to end.
Explanation:
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The pulmonary circulation conveys blood that is ______ in oxygen to the lungs before returning back to the ______ side of the heart.
The pulmonary circulation conveys blood that is low in oxygen to the lungs before returning back to the left side of the heart.
The pulmonary circulationThe circulatory system is divided into two main parts namely:
pulmonary circulation and systemic circulation.The pulmonary circulation involves the movement of blood between the lungs and the heart.
Blood from the systemic circulation returns to the right side of the heart where it is pumped through the pulmonary artery into the lungs to be oxygenated.
After oxygenation has taken place in the lungs, the blood returns to the left side of the heart through the pulmonary veins.
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What is the main difference between your ventricles and your atria?.
Answer:
The two atria are thin-walled chambers that receive blood from the veins. The two ventricles are thick-walled chambers that forcefully pump blood out of the heart.
Explanation:
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mRNA: U-A-C
What is the complementary tRNA sequence for the three mRNA bases above?
T-T-G
Thymine pairs with Adenine & Uracil
Guanine pairs with Cytosine
O A. Spindles
O B. Chromatids
O C. Centromeres
O D. Gametes
Answer:
D. Gamates
Explanation:
Meiosis is a cell division that ends up producing gamates as sperm or egg cells.
9. What is one thing that plants living in the ocean do not have to worry about?
Answer: The thing they don't have to worry about is not getting enough water, b/c they live in it!
Answer:
water
Explanation:
this is because they have adapted to absorb all the water and carbon dioxide they need from the water they live in.
Environmental factors typically activate genes in a cell by causing the cell to —.
Answer:
Environmental factors typically activate genes in a cell by causing the cell to transcribe specific DNA segments to mRNA for translation.
Environmental factors typically activate genes in a cell by causing the cell to transcribe specific DNA segments to mRNA for translation. The correct option is D.
What are environmental factors?This interaction is an illustration of how the environment influences how genes are expressed. In certain circumstances, the environment triggers the expression of particular DNA segments, which results in their transcription to mRNA and subsequent utilization as building blocks for proteins.
Other regions of the genome are left silent or are compelled to do so in the meantime. Mutations or straightforward biochemical interactions between the environment and the genome may cause this.
Therefore, the correct option is D. transcribe specific DNA segments to mRNA for translation.
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The question is incomplete. Your most probably complete question is given below:
A.produce identical daughter cells through mitosis
B.form haploid gamete cells through meiosis
C.fuse with another cell to increase the size of its genome
D.transcribe specific DNA segments to mRNA for translation
Roads are often built through forests for industrial purposes or as land is developed for residential and commercial needs. How would road construction through a forest most likely affect the ecosystem?.
During which phase of meiosis do the homologous chromosomes line up across from each other in the center of the cell?
Answer: In metaphase I, homologous chromosomes line up along the center of the cell in order to be pulled apart.
Explanation:
Meiosis is the type of cell division in the germinal cells. In metaphase I of meiosis, the homologous chromosomes line up across from each other in the center of the cell.
What is metaphase I?Metaphase I is one of the stages of meiosis I in which the duplicated homologous chromosome pairs align at the center of the cell along the midline and are connected through the centrioles.
In prophase I the homologous chromosomes are created and in anaphase I, the aligned chromosomes move towards the opposite poles so that after division each cell has the same number and equal composition of chromosomes.
Therefore, in metaphase I the homologous chromosomes are aligned at the midline.
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Identify three functions preformed by organ systems
The question you've asked is not clear, you haven't specified which organ system are you talking about. No worries, I've noted down key functions of 11 organ systems of the human body, you can pick any of them that you want.
Some of the main functions of the 11 organ systems include the following:
Skeletal system:
shape/support for the body
protect some organs (brain, heart, lungs, spinal cord, etc.)
mineral storage (e.g., Ca and P)
site for muscle connections
site for blood cell formation
Muscular system:
movement
since there are three types of muscle—cardiac, smooth, and skeletal—there are specific functions for all of these
Cardiovascular system:
pump blood throughout the body
the blood will transport nutrients, oxygen, waste, and hormones
the blood also functions as a part of the immune system and allows the white blood cells/antibodies to gain access to infected/wounded areas
Excretory system:
produce and store urine in the kidneys and bladder
release urine through the urethra
Digestive system:
digest food into nutrients that can be absorbed
absorb nutrients
make certain vitamins (e.g., Vitamin K is made by bacteria in the large intestine)
Reproductive system:
the main function here is to produce offspring
another function—in line with the endocrine system— is to make hormones (e.g., testosterone and estrogen, which affect male and female characteristics)
Endocrine system:
hormone production
these hormones act throughout the body performing multiple jobs (e.g., blood sugar levels [insulin/glucagon], growth [growth hormone], male characteristics like facial hair [testosterone]
Integumentary system:
this is the skin
protection from some pathogens (unless you get a cut)
sensations at the skin level (texture, heat, pressure, pain)
Nervous system:
made of the central (brain and spinal cord) and peripheral nervous systems
this system transmits signals from one part of the body to another and this includes your senses
Respiratory system:
this mainly includes your lungs and trachea
the main function is the exchange of gases (oxygen and carbon dioxide)
Immune system:
the main function is to defend the body against pathogens
this is done with the help of the cardiovascular system which has white blood cells and antibodies in the blood
12.
A lizard species mostly eats fruit from one
particular type of tree. If a virus kills most of
these trees, which individual lizards will most
likely survive?
A.
lizards that can climb higher in the fruit trees
B.
lizards that have darker coloration
C.
lizards that can find other types of food
D.
lizards that produce more offspring
Can someone please help me? :(
Answer:
B
Explanation:
only option that reduces the use of motorized vehicles
Answer:
B. Building new bike paths in the city.
Explanation:
This is the most possible way since...
If there are more bike paths, then there are more ways that they are going, which means more usage of them. If there is going to be more usage of them, then there is going to be less usage of cars in the city.So hence, your answer is B. Building new bike paths in the city.
Now, let's look WHY are the other ones NOT the right answer:
A. Widening roads throughout the city
This just won't do anything, rather, it will make drivers more want to go on the road since the roads are wider and easier to drive on.
B. Buliding new bike paths in the city
this is the right answer, for explanation, look above
C. Expanding the city into nearby areas
There is no use of the city being expanded, that way, if you live in one corner of the city, and your office is in the other side, then you wouldn't want to use your bike, you'll want to use the car, which is what you don't want to do.
D. Raising the price of riding the city bus
Not helpful either, this won't help that much, since 1 job will lose, 2nd, people who don't know how to drive or are pregant(probably can't ride a bike) won't be able to travel. And last, it's just so selfish..
So from all these conclusions, we can see that B is truly the answer.Buliding new bike paths in the city.-------------------------------------------------------------------------------------------------------"The beautiful thing about learning is that no one can take it away from you!" B.B.King
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Shannon is making a Venn diagram to organize the characteristics of cell walls and cell membranes. Which pair of characteristics both belong in the two areas of the Venn diagram that do not intersect?
helps with communication; contains mostly cellulose
contains mostly cellulose; forms the outer layer of animal cells
is found in plant cells; is found in animal cells
is semipermeable; found in animal cells
Answer:
uyy
Explanation:
nb gh
Answer:
contains mostly cellulose; forms the outer layer of animal cells
Explanation:
someone answer please I need someone to answer
The amniotic egg, which is present in reptiles, birds, and mammals, is a good example of: horizontal gene transfer. coevolution. homology. convergent evolution. analogy.
The amniotic egg, which is present in animals such as reptiles, birds, and mammals, is a good example of homo-logy.
What is homo-logy?The term 'homo-logy' makes reference to the same evolutionary origin (ancestor) for a given structure.
A structure and/or sequence is homo-logous when it derives from the same evolutionary ancestor.
Conversely, an analogy means that the structure and/or nucleotide sequence do not share an evolutionary origin.
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4. Prokaryotes differ from eukaryotes in that prokaryotes
A) have only a nucleus, cell membrane, and cytoplasm
B) have ribosomes and mitochondria
C) have a true nucleus and may have a cell wall
D) lack a true nucleus but may have a cell wall
E) lack DNA but can synthesize proteins
What is the right answer?
Answer:
D
Explanation:
prokaryotes are things like bacterial cells , they have no true nucleus just a long ring of dna.
Eukaryotes are things like animal cells they have a nucleus (opposite of prokaryotes)
3. Explain why the CO2 levels from automobiles and
industry are unable to be cycled into the carbon
cycle like normal cellular respiration.
In this group, which percentage does the green seed
represent?
O 25%
O 50%
O 75%
Yellow
Yellow
O 100%
Yellow
Green
which of the following occurs during a lysogenic cycle?
Your body needs a constant supply of oxygen for cellular respiration to produce the ATP needed to fuel your body processes. When you exert yourself in a strenuous workout the oxygen demands of your muscle cells quickly outpace the oxygen your body can provide. Skeletal muscle cells that have an insufficient oxygen supply to allow aerobic respiration to continue will undergo lactic acid fermentation. Refer to the model above. Predict what changes will occur when your body shifts from aerobic respiration to anaerobic respiration (lactic acid fermentation). Select ALL that apply.
Answer:
When you exert yourself in a strenuous workout the oxygen demands of your muscle cells quickly outpace the oxygen your body can provide. Skeletal muscle cells that have an insufficient oxygen supply to allow aerobic respiration to continue will undergo lactic acid fermentation.When you exert yourself in a strenuous workout the oxygen demands of your muscle cells quickly outpace the oxygen your body can provide. Skeletal muscle cells that have an insufficient oxygen supply to allow aerobic respiration to continue will undergo lactic acid fermentation.
Explanation:
cereal is a soup change my mind B) EZ
How are spores similar to seeds?
Answer:
Spores grow and spread, similar to seeds, yet only in a larger amount.
__________________________________________________________
Questions?Ask in the comments box.
8. What are some of the surface features on Venus that are similar to the Earth?
Answer:
About the same size, they weigh about the same, and are made up of very similar materials, plus there beside each other/ neighboring planets.
Explanation:
Which occurs during translation?
mRNA is created by using a DNA template.
mRNA codons are joined by tRNA anticodons to assemble amino acids to form a protein.
Protein is formed when a polypeptide chain is broken apart and released from ribosome.
One strand of DNA is copied into a strand of rRNA.
B. mRNA codons are joined by tRNA anticodons to assemble amino acids to form a protein.
The correct amino acids are brought to the ribosome by tRNA.
mRNA codons are joined by tRNA anticodons to assemble amino acids to form a protein is occurs during translation.
What are the steps of translation?Translation is the procedure by which the mRNA codes for a specific protein. All the while, the ribosome interprets the mRNA created from DNA into a chain of explicit amino acids.
In the pathway of gene expression, protein synthesis is an essential process and a crucial control factor. Translation regulation is essential for maintaining homeostasis in both the cell and the organism and plays a prominent role in most cell processes.
Translation is the process of making a polypeptide chain from mRNA codons. tRNA charging, initiation, elongation, and termination are the four stages.
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if two organisms have the same name in it does it mean they are closely related?
Answer:
yes
Explanation:
similar structure can indicate relatedness
1. Which of the following is NOT an example of cell migration as a part of cell differentiation?
A.
mesenchyme cells forming mesoderm during gastrulation
B.
primitive streak formation in a chick embryo
C.
concentration of protein complexes during cleavage
D.
convergent extension to elongate the archenteron in the sea urchin
2 .What is the role of cleavage in embryonic development?
A.
Cleavage allows for rapid development of a large number of smaller cells.
B.
Cleavage promotes differentiation of cells into germ layers.
C.
Cleavage prevents polyspermy.
D.
Cleavage plays a role in apoptosis, not in embryonic development.
The option that isn't an example of cell migration as a part of cell differentiation is C. concentration of protein complexes during cleavage
What is a cell?It should be noted that a cell simply means the basic unit of life. Cell migration is the evolutionary process that allows cells to move.
The role of cleavage in embryonic development is that cleavage plays a role in apoptosis, not in embryonic development.
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What general term is used to describe the introduction of foreign dna into a cell?.
PLEASE HELP DUE IN 10 MIN
Answer:
what are the options
Explanation:
