Assume that there are five alligators per acre in a swamp in northern Florida. This is a measure of the alligator population's:________.
A) intrinsic rate of increase.
B) dispersion.
C) range.
D) density.
Answers
Answer: D) density
Explanation:
It is just a fact
Related Questions
Match each term with its definition Terms 1. Law of conservation of energy 2. Law of conservation of mass 3. Raymond Lindeman 4. Trophic level Definitionsa. energy cannot be created nor destroyedb. a biologist who studied ecosystem ecologyc. matter cannot be created nor destroyedd. a position in a food chain, a food web, or an ecological pyramid that is occupied by a group of organisms
Answers
1. The law of conservation of energy states that energy cannot be created nor destroyed. Therefore, the correct answer is A.
2. The law of conservation of mass states that matter cannot be created nor destroyed. Therefore, the correct answer is C.
3. Raymond Lindeman is consideres the founder of ecosystem ecology. Therefore, the correct answer is B.
4. Trophic level is a position in a food chain, a food web, or an ecological pyramid that is occupied by a group of organisms. Therefore, the correct answer is D.
Two things required for respiration to occur
Answers
Answer:
Inhaling and exhaling
The lengths of a particular animal's pregnancies are approximately normally distributed, with mean u = 255 days and standard deviation o = 8 days. (a) What proportion of pregnancies lasts more than 269 days? (b) What proportion of pregnancies lasts between 243 and 259 days? (c) What is the probability that a randomly selected pregnancy lasts no more than 247 days? (d) A "very preterm" baby is one whose gestation period is less than 237 days. Are very preterm babies unusual? (a) The proportion of pregnancies that last more than 269 days is (Round to four decimal places as needed.) (b) The proportion of pregnancies that last between 243 and 259 days is (Round to four decimal places as needed.) than 247 ays is (c) The probability that a randomly selected pregnancy lasts no (Round to four decimal places as needed.) This event unusual because the probability is than 0.05. (d) The probability of a "very preterm" baby is (Round to four decimal places as needed.)
Answers
(a) Approximately 0.0401 or 4.01% of pregnancies last more than 269 days.
(b) Approximately 0.6247 or 62.47% of pregnancies last between 243 and 259 days.
(c) The probability is 0.1587 or 15.87%.
(d) Since this is less than 0.05, the probability of a "very preterm" baby is less than 0.05. Therefore, "very preterm" babies are considered unusual.
To solve these problems, we can use the standard normal distribution and z-scores.
(a) To find the proportion of pregnancies that last more than 269 days, we need to calculate the area under the normal curve to the right of 269. First, we calculate the z-score:
z = (269 - u) / o = (269 - 255) / 8 = 14 / 8 = 1.75
Looking up the z-score of 1.75 in the standard normal distribution table, we find that the corresponding area to the left is approximately 0.9599. Since we want the proportion to the right of 269, we subtract this value from 1:
Proportion = 1 - 0.9599 = 0.0401
Therefore, approximately 0.0401 or 4.01% of pregnancies last more than 269 days.
(b) To find the proportion of pregnancies that last between 243 and 259 days, we need to calculate the area under the normal curve between these two values. We calculate the z-scores for both values:
z1 = (243 - u) / o = (243 - 255) / 8 = -12 / 8 = -1.5
z2 = (259 - u) / o = (259 - 255) / 8 = 4 / 8 = 0.5
Using the standard normal distribution table, we find the area to the left of z1 (-1.5) is approximately 0.0668, and the area to the left of z2 (0.5) is approximately 0.6915. To find the area between these two z-scores, we subtract the smaller area from the larger area:
Proportion = 0.6915 - 0.0668 = 0.6247
Therefore, approximately 0.6247 or 62.47% of pregnancies last between 243 and 259 days.
(c) To find the probability that a randomly selected pregnancy lasts no more than 247 days, we calculate the z-score:
z = (247 - u) / o = (247 - 255) / 8 = -8 / 8 = -1
Looking up the z-score of -1 in the standard normal distribution table, we find the corresponding area to the left is approximately 0.1587. Therefore, the probability is 0.1587 or 15.87%.
(d) To determine if "very preterm" babies (gestation period less than 237 days) are unusual, we calculate the z-score:
z = (237 - u) / o = (237 - 255) / 8 = -18 / 8 = -2.25
Looking up the z-score of -2.25 in the standard normal distribution table, we find the corresponding area to the left is approximately 0.0122. Since this is less than 0.05, the probability of a "very preterm" baby is less than 0.05. Therefore, "very preterm" babies are considered unusual.
To know more about probability, refer to the link below:
https://brainly.com/question/32320760#
#SPJ11
In anatomical position, which term locates the little finger in relation to the thumb?
Answers
Answer:
pinky
Explanation:
List all of possible haploid genotypes of the gametes for the following genotypes for two genes on different chromosomes: a Aabb b.ААВЫ cAaBB d.AAbb e. AaBb f.aabb
Answers
The haploid genotypes of the gametes for the following genotypes for two genes on different chromosomes are :a Aabb: Gamete genotype: aAb and aab. b ААВЫ: Gamete genotype: АB. c AaBB: Gamete genotype: AB and aB. d. AAbb: Gamete genotype: AaB and Ab. e. AaBb: Gamete genotype: AB, Ab, aB, and ab. f. aabb: Gamete genotype: ab.
All of these genotypes are from different genes located on different chromosomes, so they follow the Mendelian law of segregation. According to this law, every diploid organism contains two alleles for each gene, and when that organism produces gametes, those alleles segregate (separate from each other) into different gametes in a random fashion.
Therefore, the number of different gametes produced by an organism is equal to 2 raised to the power of n, where n is the number of heterozygous genes (genes with two different alleles) present in the organism.
Learn more about genotypes here:
brainly.com/question/12116830
#SMJ11
23. Sally and Juan’s science teacher challenged her students to build a paper airplane that would stay airborne for ninety seconds. The students have two days to design and test their planes. The assignment will end with a “fly-off.” First Sally and Juan researched plane designs. Then they built their first plane. Whenever they tested the plane, it would take a nose dive straight into the floor. They changed the design by reshaping the nose of the plane and adding some weight to the tail. The plane flew but did not get very far. Finally, they tried to change the way they threw the plane. After many tries, their plane stayed in the air for an average of ninety-two seconds.
According to the Technological Design Process, what should their next step be?
A. Designing a product C. Evaluating the design
B. Identifying a problem D. Implementing (testing) the design
Answers
Answer:
C. evaluating the design
Explanation:
Hope this helped
Answer:
C - Evaluating a design
Explanation:
Hope this Helps!!
:D
About 70 years ago, cane toads were introduced to Australia. The toads are toxic to some species of snakes, such as Dendrelaphis punctulatus The longer an individual snake is the greater its chance of survival after eating a cane toad. Which of the following did scientists most likely observe in the D. punctulatus snake population as a result of the presence of the cane toads?
A.The entire population was killed by the toads. B The entire population became resistant to the toads.
C.The average body length in the population increased.
D.The average body length in the population decreased
Answers
Answer:la letra D es la respuesta
Explanation:
suppose there is a newly discovered lineage that is a sister lineage to the lineage containing lizards and salamanders. what is most likely about this lineage?
Answers
If there is a newly discovered lineage that is a sister lineage to the lineage containing lizards and salamanders, it is most likely that this newly discovered lineage shares a common ancestor with the lineage containing lizards and salamanders.
The term "lineage" refers to a series of organisms, populations, cells, or genes that are derived from a single ancestor. The term "sister lineage" refers to two or more lineages that share a common ancestor but diverged from each other. Thus, if there is a newly discovered lineage that is a sister lineage to the lineage containing lizards and salamanders, it means that this newly discovered lineage is closely related to the lineage containing lizards and salamanders and shares a common ancestor with it. The statement "shares a common ancestor" means that this newly discovered lineage diverged from the lineage containing lizards and salamanders at some point in the past but they share a common ancestor from which they both descended. Therefore, it is most likely that this newly discovered lineage also has some traits or characteristics in common with the lineage containing lizards and salamanders due to their shared ancestry.
Learn more about common ancestor: https://brainly.com/question/1234951
#SPJ11
Write any four effects of medicinal plants.
Answers
Answer:
Kidney failure, liver damage....
Explanation:
Herbal medicines may produce negative effects such as allergic reactions, rashes, asthma, headaches, nausea, vomiting, and diarrhoea that can range from mild to severe. Like other prescription medications, herbal medicine should always be prescribed by a qualified and registered practitioner.
The primary function of light absorption by photosystems i and ii is to produce __________.
Answers
The primary function of light absorption by photosystems I and ii is to produce a free electron, full of energy.
Photosynthesis is the process by which plants or algae produce oxygen and energy using Sunlight, carbon dioxide, and water.
Photosystem I and photosystem II help plants to absorb light and radiation. The absorption of light in Photosystem II and then in I excites a free electron which is then passed by an electron transport chain.
This electron transport chain uses the energy of electrons to form a protein gradient that can be used as an energy source.
If you need to learn more about Photosystems, click here
https://brainly.com/question/13530382
#SPJ4
in drought conditions, many plants aren't able to survive because they do not have enough water to photosynthesize. which step in photosynthesis would be blocked by drought conditions?
Answers
In drought conditions, the step of photosynthesis that would be blocked is the light-dependent reactions which take place in the thylakoid membrane of the chloroplast.
Photosynthesis is the process by which green plants and some other organisms utilize sunlight to synthesize foods with the aid of chlorophyll pigments, carbon dioxide, and water. Photosynthesis in plants is carried out by organelles called chloroplasts, which contain chlorophyll pigment. Chloroplasts convert light energy into chemical energy in the form of ATP by using photosystems 1 and 2, which are complex arrangements of pigments and proteins.
The ATP produced is used in the dark reactions of photosynthesis (also known as the Calvin cycle), which occur in the stroma of the chloroplasts. The dark reactions take carbon dioxide and water to make sugars, with oxygen gas as a by-product. The process of photosynthesis can be divided into two parts: light-dependent reactions and light-independent reactions.
Light-dependent reactions: During light-dependent reactions, energy is obtained from sunlight and converted into chemical energy in the form of ATP, which is used in light-independent reactions. This process takes place in the thylakoid membrane of the chloroplasts. It is during this process that water is split into oxygen and hydrogen ions.
Light-independent reactions: During light-independent reactions, chemical energy in the form of ATP is used to convert carbon dioxide to glucose. This process takes place in the stroma of the chloroplasts.
To learn more about photosynthesis visit;
https://brainly.com/question/29764662
#SPJ11
Two trains are traveling down a track. Train A has more mass than Train B. What will happen when the two trains attempt to stop with the same force at the Train Station?
Answers
Answer:
It will take train B a longer time to come to come to rest at the target train station
Explanation:
We know that train B has a higher mass compared to train A.
The same force is applied by the brake of the train to bring them to rest.
From Newton's second law of motion; force is a product of mass and acceleration:Force = mass x acceleration
Now, the more the mass of a body, the higher the force applied to cause it to accelerate. To bring such a body to rest, a higher force must also be applied to it
Train B will stop faster at a train station than train A when the same force is applied.
According to Newton's first law of motion commonly called the law of inertia, an object will continue in its state of rest or uniform motion unless the body is acted upon by an external, unbalanced force. The reluctance of a body to move or stop moving is proportional to its mass.
As such, a large object has a greater inertia. This means that a larger object finds it more difficult to start moving or stop moving compared to a lighter body.
Hence, Since train A has more mass than train B, train B will stop faster at a train station than train A when the same force is applied.
Learn more: https://brainly.com/question/14281129
natural population sizes will fluctuate for many reasons. can you think of a few situations where an established population may vary from year to year?
Answers
A natural population often has a tiny number when it initially establishes itself in a new habitat.
The population growth rate is anticipated to be growing throughout the first few generations. Due to resource constraint, the population growth rate will probably start to slow down after few generations. A characteristic of habitat is it carrying capacity, which refers to the most people that it can sustain.
The population is more at danger of losing genetic diversity the smaller it is. This makes reasonable since there will be fewer alleles if there are fewer creatures.
It would seem logical to suppose that we could simply count the number of creatures in the group and determine if it is at risk of losing genetic diversity if it is tiny. Sadly, it's not quite that easy. Several bigger populations are also at danger. We must examine the census population and effective population size in order to see why.
To know more about natural population visit:
https://brainly.com/question/14416303
#SPJ4
what do most sessile animals eat? (1 sentence)
Answers
Most sessile animals, such as barnacles, corals, and sponges, primarily consume plankton and organic particles by filter feeding or passive absorption.
Sessile animals are those that are permanently attached or anchored to a substrate and do not move around. Examples of sessile animals include corals, sponges, barnacles, and some types of marine worms.
The diet of sessile animals depends on their specific anatomy and feeding mechanisms, which are adapted to their stationary lifestyle
It's important to note that the specific diet of sessile animals can vary greatly depending on their species, habitat, and ecological niche. Some sessile animals may have a combination of feeding mechanisms, while others may rely primarily on one type of feeding strategy.
To know more about sessile animals refer here ;-
https://brainly.com/question/2916297#
#SPJ11
a regular solid has dimensions of 3.20 cm by 4.90 cm by 5.40 cm. the mass of the solid is 235g. what is its density in g/cm3
Answers
Answer:
2.775415722
Explanation:
density is Mass divided by volume
Need help with number 12
Answers
The organism that has DNA closest to that of a bird is likely to be a reptile the organism that differs the most from a bird in terms of DNA is a bacteria.
What is the DNA of a bird?Dinosaurs called theropods gave rise to birds. Fossil DNA studies have revealed a tight relationship between birds and the maniraptoran theropod dinosaurs, which include Velociraptor and Deinonychus.
Bacteria lack the intricate cellular structures and processes found in eukaryotic creatures like birds and have an entirely different sort of genetic material (circular DNA termed a plasmid).
Learn more about DNA:https://brainly.com/question/264225
#SPJ1
Help asappp !!!!!!!!!!!!!
Answers
pay attention in classroom with a good 8.5m for your right right when now need it
a large plant that grows in a warm, swampy environment and faces substantial herbivory most likely . group of answer choices has a much smaller than usual difference between its gpp and its npp. allocates a relatively large proportion of its npp to roots. allocates a relatively large proportion of its npp to secondary compounds. all of the above
Answers
has a sizable percentage of its npp devoted to secondary chemicals. This is due to the possibility of secondary chemicals, such as poisons and other chemical defences, aiding in the plant's herbivore defence.
The warm, swampy atmosphere may also encourage the development of bigger plants with more powerful roots that can help them anchor themselves and take up nutrients from the nutrient-rich soil. The plant can thrive under these circumstances by allocating a large part of NPP to the roots. Life on Earth depends on a wide variety of creatures called plants. Through the process of photosynthesis, they are primary producers that turn light, water, and carbon dioxide into energy. The development and reproduction of the plant are then fueled by this energy.
learn more about plants here:
https://brainly.com/question/13052059
#SPJ4
Which statement is correct based on the information provided in the two diagrams?
A. The diagrams both provide support for the theory that the continents have always been
fixed in their current positions.
B. The diagrams have little relationship to each other, as some of the land areas shown on the
diagrams are in different positions.
C. The diagrams support each other by offering two separate sources of evidence that support
the past shapes and positions of the landforms.
D. The diagrams provide support for the conclusion that the process of continental drift ended
when the continents reached their current positions.
Answers
Answer:
c because these graphs are showing how the continents separated
Explanation:
Drag each description of a digestive or metabolic process to the place in the body where it occurs. Produces maltase, lactase, and sucrase Acid inactivates carbohydrate- digesting enzymes Produces pancreatic amylase, insulin, and glucagon Houses bacteria that ferment soluble fiber Produces salivary amylase Converts most fructose and galactose to glucose Reset
Answers
Each description of a digestive or metabolic process has been matched to the place in the body where it occurs as follows:
A. Produces maltase, lactase, and sucrase - Small intestine
B. Acid inactivates carbohydrate-digesting enzymes - Stomach
C. Produces pancreatic amylase, insulin, and glucagon - Pancreas
D. Houses bacteria that ferment soluble fiber - Large intestine
E. Produces salivary amylase Mouth (Salivary glands)
F. Converts most fructose and galactose to glucose Small intestine
What organs of the body perform these actions?The organs of the body and the respective roles that they play in digestion and the metabolic process have been outlined above. Here, we can see that the small intestine is the organ of the body responsible for producing maltase, lactase, and sucrase.
Also, the hydrochloric acid contained in the stomach is helpful in inactivating carbohydrate-digesting enzymes. The mouth contains salivary glands that produce salivary amylase for digesting food.
Learn more about metabolic processes here:
https://brainly.com/question/20607988
#SPJ1
Can 2 objects made from exactly same substance but different shape or size have the same density? Make a graph
Answers
Yes, 2 objects made from exactly same substance but different shape or size have the same density.
How is it possible for items to have varying sizes but the same density?A substance's density is typically independent of its size, both large and small, and independent of its shape. Despite having distinct masses and volumes, a gold brick and a statue both have the same density. A substance's density is generally understood to be its mass per unit volume.
Therefore, object with the highest density will be the smaller of two things if they both have the same mass but differ in size. So one can say that two things have comparable densities if they have the same mass.
Learn more about density from
https://brainly.com/question/1591709
#SPJ1
Use the B for the dominant allele and a b for the recessive allele to answer the questions about the pedigree below. Fill in the answers to 1-8 in the short answer section space given below this question.
Answers
Answer:
Generation I
1. bb
2. BB
Generation II
1. Bb
2. Bb
3. Bb
4. Bb
Generation III
1. bb
2. BB
The gram negative bacillus associated with abscesses from cat bites or scratches is:
A. Salmonella typhimurium
B. Yersinia enterocolitica
C. Bartonella henselae
D. Brucella suis
E. Francisella tularensis
Answers
The gram-negative bacillus associated with abscesses from cat bites or scratches is:
C. Bartonella henselae
What are gram-negative bacteria?Gram-negative bacteria are bacteria that develop a pink or red stain on their cell walls in the Gram staining method.
The cell walls of gram-negative bacteria are made up of a thin layer of peptidoglycan that is encircled by an outer membrane made of complex chemicals like lipopolysaccharides and lipoproteins.
While some gram-negative bacteria are helpful to humans, others can be harmful.
Escherichia coli and Bartonella henselae are types of gram-negative bacterium that can cause illness.
Learn more about gram-negative bacteria at: https://brainly.com/question/1194544
#SPJ1
A controlled scientific study examining variables is known as a
scientific ______ ?
Answers
Answer:
An experiment
Explanation:
The answer is an experiment
A controlled scientific study examining variables is known as a scientific experiment.
What is a scientific experiment?A scientific experiment is an experiment that is done to calculate or check out a reason for scientific things to happen. It is done with variables, these variables are controlled, independent, and dependent.
Scientific experiment container hypothesis, a procedure, and it is done by proper regulated method and instruments.
Now variables can be the components whose study we are doing or the variable which affects the component.
A control scientific experiment will be controlled by the scientist and it is to be checked that what time and what face of the experiment is going on
Thus, a scientific experiment is a carefully planned, multi-variable investigation.
To learn more about the scientific experiment, refer to the below link:
https://brainly.com/question/2449529
#SPJ2
which synergist would assist the upper-body pectoral muscles to enhance chest stabilization, strength, or power?
Answers
Answer:
The synergist that would assist the upper-body pectoral muscles to enhance chest stabilization, strength, or power is the serratus anterior muscle. This muscle is located on the side of the ribcage and helps to stabilize the shoulder blade when doing chest exercises. It also assists the pectorals in producing force and power when pushing movements. Strengthening this muscle can help to improve your chest stabilization, strength, and power.
Tell the difference between the independent variable and the dependent variable.
Answers
Answer:
Independent is the thing you change and the dependent is what changes because of the thing you change.
Example:
If you had 2 cookies available you'd only have 2 people while if you had 200 cookies than you would have way more people. So the independent would be amount of cookies and the dependent would be how many people show up.
Hope this helps!
Which of the following is not used to hold liquids?
a.
flask
b.
graduated cylinder
c.
balance
d.
test tube
Answers
Answer:
C. balance
This is because it is because a balance is an even distribution of weight hence balance is not used to hold the liquid instead a balance is used to weigh the liquid
Answer:
c. balance
Explanation:
What happens as warm air is less dense, what tends to
in the atmosphere.
This is for science
A. Sink
B. Rise
C. Stay the same
Answers
According to the law of conservation of mass, what is the mass of sodium oxide (Na2O) formed in this reaction?
Answers
Answer:
123.96 grams
Explanation:
Add the numbers underneath 4Na and O2 (^3 ^)
If a researcher looks at a cell and notices a straight line of sister chromatids, which phase are they viewing?
Answers
If a researcher looks at a cell and notices a straight line of sister chromatids. They are viewing metaphase.
What is metaphase?The chromosomes are at their second-most compacted and coiled state during the mitotic stage of the eukaryotic cell cycle, known as metaphase. These chromosomes, which contain genetic material, align in the cell's equator before being divided into the two daughter cells.
A phase of cell division known as "metaphase" (mitosis or meiosis). Individual chromosomes are typically dispersed throughout the cell nucleus. The chromosomes of the cell condense and move toward one another, aligning in the center of the dividing cell, and the nucleus of the cell disintegrates during metaphase.
The alignment of paired chromosomes along a cell's metaphase plate is known as the first metaphase of meisosis I.
To learn more about metaphase from the given link:
brainly.com/question/16992029
#SPJ4