Answer: Food can be an obvious answer because people will not survive without food so they will die. And death means there will be a decrease on population size. So food can be a limiting factor that is dependent on population size.
Answer:
A limiting factor that depends on propulation size is called a density-dependent limiting factor.
Density- dependent limiting factors include: competition, predation, parasitism and disease.
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Please help
ASAP 10 points
Answer:
I would guess B, systematic sampling. I might be wrong though.
Explanation:
Which of these is the best definition of sustainable development?
A. Development that makes sure buildings are strong enough to sustain large hurricanes and earthquakes
B. Development that's typical of underdeveloped nations that derive their products directly from nature
C. Development that's supported by public opinion
D. Development that ensures the protection of the environment in the long term
Answer:
option D
Explanation:
is the correct answer
Development which basically ensures the protection of the environment in the long term is sustainable development. The correct option is D.
What is sustainable development?Sustainable development is defined as growth that fulfills the requirements of the moment without jeopardizing future generations' capacity to meet their own needs.
The financial, social, and environmental measurements of sustainable development are examined.
The authors contend that material-intensive conventional productivity recovery is unsustainable in the long term unless environmental and social factors are prioritized equally.
Environmental protection aims to preserve as well as restore a healthy natural environment.
Sustainable development incorporates ecologic, social, and economic goals in order to achieve long-term equitable growth that benefits both the present and the future.
Thus, the correct option is D.
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what is fermentation process?
Answer:
Fermentation is a metabolic process that produces chemical changes in organic substrates through the action of enzymes. In biochemistry, it is narrowly defined as the extraction of energy from carbohydrates in the absence of oxygen.
Explanation:
I hope it will help you
Answer:
Fermentation is a metabolic process that produces chemical changes in organic substrates through the action of enzymes through chemical breakdown of a substance by bacteria, yeasts, or other microorganisms,
Explanation:
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Which organelle is labeled A?
The endogenous cholesterol synthesis by the liver that we need to function normally it can lead to
plaque formation within the blood vessels.
Оа.
False
b. True
Answer:
It should be true
Explanation:
online health class and quick double check
4.In humans, the allele which confers the ability to roll the tongue is dominant over the allele which does not confer the ability to roll the tongue. If a man who can roll his tongue and whose mother could not mates with a woman who cannot roll her tongue, what proportion of the children would be expected to be able to roll their tongues if they have a large number of children
Answer:
The correct answer is - 1/2
Explanation:
the ability to roll the tongue is dominant over those who can not roll the tongue. The man is Rr (man), heterozygous. The woman is recessive and can not roll
Rr (man) x rr (woman)---Parents
r
R Rr (roll)
r rr (cann't roll)
The probability of their children to able to roll = 1/2 = 50%
Linda received the flu vaccine this year.
Which of the following statements is true?
Linda's T-cells will produce memory cells against the virus.
Linda's body will produce antigens against the flu virus.
Linda's immune system will produce lifelong immunity against any form of the flu.
Linda's immune system will produce antibodies against the flu virus.
Answer:
Linda's immune system will produce antibodies against the flu virus
Answer:
Linda's immune system will produce antibodies against the flu virus
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in some plants pink flowers are dominant over yellow flowers if Mario crosses two hybrids what happens
Chlorophylls are a. seen best in carrots, beets, and red ferns. b. pigments that absorb only blue and green wavelengths. c. the main pigments that absorb the wavelengths most efficient at driving photosynthesis. d. All of the answers are correct.
Answer:
....kghvkhbiblyhlugkufv
Explanation:.....
Answer:A
Explanation:
I think A because they are all plants
Eukaryotes are different than Prokaryotes, because only eukaryotes have:
A. DNA
B. Capsule
C. Organelles
D. Plasma membrane
Answer:
D
Explanation:
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Eukaryotes are different from prokaryotes because only eukaryotes have Organelles. The correct option is C.
What are prokaryotes?Prokaryotes are primitive organism that is single-celled and their cell contains a capsule and flagella or cilia for locomotion and finding food. These organisms lack true organelles.
Eukaryotes are organisms that can be single-celled or multi-celled. They contain the true nucleus and organelle in the cell and the cell is covered with a cell membrane and a nucleus is present that contains the DNA or the organism.
Prokaryotic and eukaryotic cells, both contain DNA, a plasma membrane. But in prokaryotes, an organelle is absent, and they are covered by a capsule.
Thus, the correct option is C. Organelles.
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Which of the following factors would LIMIT carrying capacity?
A. Far from factories or roads
B. A large nearby river
C. Abundant food
D. A small space to live in
Answer:
D. A small space to live in
Explanation:
Having a small space to live in would directly limit carrying capacity.
Since there is a small space, only a few organisms would be able to live in that space.
This means that carrying capacity is limited, because the space does not have enough room to sustain more people.
So, the correct answer is D. A small space to live in
The structure in the male reproductive system of rabbit which releases nutritious secretions for sperms
is called
O a.
Seminal vesicles
O b. Spermatogonia vesicles
Ос.
Cowper's vesicles
Answer:
I think the answer is A
Explanation:
A search of the definitions of each option
Why does each trophic level have a smaller amount of organisms or biomass than the one below it? A. Because higher trophic levels have lower survival rates for offspring. B. Because each trophic level has larger organisms than the one below it. C. Because the higher trophic levels have to hunt the lower trophic levels, so they- use most of the energy that they gain from eating. D. Because each trophic level is only absorbing 10% of the previous, so there is not enough energy to sustain larger numbers.
Each trophic level has a smaller amount of organisms or biomass than the one below it because it is only absorbing 10% of the energy from the lower level, so there is not enough energy to sustain larger numbers.
A trophic level refers to a level in the food chain consisting of the same or biologically similar organisms. Examples of trophic levels include producer, consumer, and decomposer.Organisms in the lower trophic level serve as food for organisms in the next trophic level of the food chain.Only about 10% of the energy derivable from one trophic level gets to the next trophic level, the remaining is lost as heat during metabolic processes.Hence, the number of organisms progressively decreases as we climb higher in the food chain. The limit to the amount of energy transferred as we move higher means that the number of individuals that can be sustained will also be limited.The correct option would, therefore, be D.
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A group of archaic mammals that at times are referred to as mammal-like primates characterized by claws instead of nails, no postorbital bar, arboreal quadrupeds, and best known from Montana and lived during the geologic Paleocene Epoch are referred to as:
A population of 100 sea stars is in Hardy-Weinberg equilibrium. The trait for long arms is completely dominant to the trait for short arms. In this population, 40% of the alleles for this trait are dominant, and 60% are recessive. What percent of sea stars in this population are heterozygous
Answer:
In population genetics, the Hardy–Weinberg principle, also known as the Hardy–Weinberg equilibrium, model, theorem, or law, states that allele and genotype frequencies in a population will remain constant from generation to generation in the absence of other evolutionary influences
Explanation:
An allele frequency is computed by dividing the total number of copies of all the alleles at that specific genetic locus in the population by the number of times the allele of interest is observed in a population. The decimal, percentage, or fractional forms of allele frequencies are all acceptable.
What sea stars are in Hardy-Weinberg equilibrium?The Hardy-Weinberg equilibrium, model, theorem, or law of population genetics states that, in the absence of additional evolutionary factors, allele, and genotype frequencies in a population will remain constant from generation to generation.
Therefore, The lesson and figure 12.12's allele frequencies are used in this question as well. The percentage of individuals with two dominant arm length alleles can be calculated by multiplying 0.6 by 0.6. The population size (100 people) multiplied by that percentage yields the number of people that are homozygous dominant for the arm length allele.
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what are the points included in women's rights
Answer:
Explanation:These later evolved into six general points of equality for women: political, occupational, moral, social, economic and legal.
All of the following statements about ferns are correct except:_________
A) ferns flourish in many habitats, but the majority are located in the tropics.
B) the sporophyte is a conspicuous generation.
C) sori are located on the back or ventral surface of fronds.
D) the gametophyte is a conspicuous generation.
E) ferns have underground stems called rhizomes.
Answer: B) because in higher plants, such as angiosperms and gymnosperms, the sporophyte is the dominant generation.
All of the following statements about ferns are correct except the gametophyte is a conspicuous generation. Therefore, the correct option is D.
In ferns the gametophyte is usually much smaller and less noticeable, whereas the sporophyte is the more noticeable generation. The sporophyte, the famous giant pearl fern plant, is a major stage in the fern life cycle. Gametes (eggs and sperm) are produced by the gametophyte, which is a small, autonomous stage responsible for sexual reproduction.
Therefore, the correct option is D.
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Wheres the cell membrane located?
Answer:
in cells the cell membrain is located in the middel but this can vary in diffrent cells Explanation:
Which of the following pathway would a protein destined for the interior of the nucleus follow
Answer: The protein is translated on free ribosomes and then passes through the pore complex to enter the nucleus.
Explanation:
In an experiment, a small dialysis bag is filled with a 20% salt solution. It is placed in a
beaker filled with a 40% salt solution. Assuming that water can pass through the
small pores of the dialysis bag, whereas the large salt molecules cannot, what will
happen to the size of the dialysis bag?
Answer:
The bag will get smaller
Explanation:
Osmosis can be defined as the process of diffusion or movement of water molecules across a semipermeable membrane from an area of higher concentration of water (i.e., lower concentration solution) to a lower concentration of water. For example, in cells, there are specialized pores called 'aquaporins' which are membrane proteins that form channels to transport water molecules by facilitated diffusion. In this case, the outside of the bag has a higher salt concentration than inside, thereby water molecules will move by facilitated diffusion through pores from inside to outside the bag.
In sweet peas, the genes for flower color and pollen grain shape are 11 cM apart. A pure-breeding purple flowering plant with round pollen grains is crossed to a pure-breeding red flowering plant with long pollen grains. The resulting F1 offspring are all purple flowering plants with long pollen grains. What percent of offspring from a test cross analysis of the F1 individuals would you expect to be purple flowering plants with long pollen grains
Answer:
The correct answer is - 44.5%.
Explanation:
In this question, there are two traits are given, flower color and pollen shape. The purple flowers and long pollen are wild-type (dominant). Red flowers and round pollen are mutant or recessive. The cross is between a pure breeding purple and round pollen plant with red and long pollen plant. The offspring are all purple and long pollen plants. However, the offspring would be all heterozygotes genotype for both traits.
Linkage can be calculated as -
Linkage distance = % of recombinant offsprings formed in a test cross.
parental types are purple and long pollen, red and round pollen.
So, the recombinant type would be purple and round pollen, red and long pollen.
11% of the offspring would be recombinant type as the distance is 11cM. Therefore, 89% of the progeny would be parental type. Which means this 89% of parental offsprings have equal proportions of both phenotypes of parents. So, the purple flowers and long pollen would be half of 89%.
that is 89/2 = 44.5%.
How do endophytes affect grazing animals?
A. Endophytes pull nutrients from the soil, making plants more nutritious for grazing animals.
B. Endophytes that produce toxins can be poisonous to grazing animals.
C. Endophytes fix nitrogen from the air, making plants more nutritious for grazing animals.
D. Endophytes are poisonous to plants, depriving grazing animals of forage.
Answer:
B. Endophytes that produce toxins can be poisonous to grazing animals.
What is homeostasis? What are some of the things my body does to keep it at the right temperature?
Answer:
Blood flow to your skin increases to speed up heat loss into your surroundings, and you might also start sweating so the evaporation of sweat from your skin can help you cool off.As heat is lost to the environment, the body temperature returns to normal.
In the cell bio lab, we use company manufactured gels, however you can make you own polyacrylamide gels. List all of the ingredients found in an SDS-PAGE gel. Which ingredients are responsible for polymerizing the solution?
Answer:
The list of ingredients are used in this method are as follow-
1. Acrylamide - mostly 30%
2. Bisacrylamide - mostly 0.8%
3. 1.5M Tris-Hcl pH 6.8 for stacking gel and 8.8 for separating gel.
4. 10% SDS
5. 10% APS
6. TEMED
7. Double distilled water
Polymerization:
Acrylamide is a polymer that is used to dissolved in buffer and bisacrylamide is the cross linking agen.
Two types of gels are prepared for separation of protein. Stacking gel is usually 4 or 6% and separating gel is usually 10 to 20%. Lower concentration of stacking gel will allow the migration of all the protein same because of larger pore size. It will stack or line up the proteins for its next level of separation.
Higher concentration of separating gel will provide resistance to the movement of protein because of the low pore size and therefore linear bands can be achieved neatly.
A husband and wife have a child who suffers from cystic fibrosis (CF), an incurable, fatal hereditary disease that results in frequent infections and difficulty breathing. The couple wants to determine their risk of having another child with this disorder. Because CF is a recessive disorder, a child usually must inherit the CF gene from both parents to get the disease. A child with just one CF gene is a carrier: Such a person doesn't have the disorder 'but can pass the trait on to the next generation. The DNA test revealed that the mother of the child carried the CF trait; however, her husband did not. The DNA tests showed that he was not the biological father of the child.
This test has put the counselor in a difficult situation. Should the counselor tell the couple about the nonpaternity findings? Should the mother be told privately? If so, is the center colluding with the mother to withhold information from the husband? In addition, this case brings up issues concerning the biological father of the child. This man has not contracted with the genetics center for the test, yet the counselor now knows that this man is probably a carrier of the mutant gene for CF.
Required:
a. Should the genetic counselor call this man and tell him about his risk?
b. What would you do if you were the genetic counselor?
c. Present arguments for both sides of the issue.
Answer:
Both
Explanation:
Risk because the genetic counsler does too much argument
The most intense earthquakes happen at
1. Plate boundaries
2.subduction zones
3.mid - ocean ridges
4. Collision plate boundaries
Answer:
The answer is #2. Subduction Zones
the valency of flourin is 1 what is the valence electron
Answer:
Fluorine has 7 valence electrons and would need another one to have a full outer valence electrons.
How many federal agencies are responsible for managing land resources in the United States?
Answer:
How many federal agencies are responsible for managing land resources? Most of the current land use concerns relate to federal lands controlled by four federal agencies: Bureau of Land Management, U.S. Forest Service, National Park Service, and Fish and Wildlife Service.
Explanation:
Answer:
The answer is 4 on edge
Explanation:
is mucous an enzyme or harmone
Answer:
It's an Enzyme.
Explanation:
It is a viscous colloid containing inorganic salts, antimicrobial enzymes (such as lysozymes), immunoglobulins (especially IgA), and glycoproteins such as lactoferrin and mucins, which are produced by goblet cells in the mucous membranes and submucosal glands.
Guinea pigs can produce different coat colors, white, brown, and mixed white/brown (agouti). The allele B is codominant with allele W (white coat). Cross an agouti-colored Guinea pig with a brown Guinea pig. What are the odds of the offspring?
Answer:
Brown
Explanation:because the agouti itself is a mixture that remains of a pale brown color and the melanin content in the animals is in the darker colors so it is more likely that the brown color is predominant to the agouti due to the content of melanin that it
The descendants of a cross between an agouti heterozygous (AB) colored Guinea pig and a brown (BB) colored Guinea pig are half heterozygous agouti, half homozygous brown. The correct option is A.
What exactly is codominance?Codominance is a genetic effect that happens whenever the alleles are expressed in heterozygotes.
In this particular instance, allele B co-dominates with allele W, resulting in heterozygous (WB) colored Guinea pigs like one of the parents.
Thus, the correct option is A.
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The missing options of the question are:
A. 1/2 heterozygous brown, 1/2 homozygous agouti.B. 1/2 homozygous white, 1/2 heterozygous brown.C. 1/4 homozygous brown.D. 1/2 heterozygous agouti, 1/4 white.