Answer:the population density of chipmunks in 2021=256,666.667 per square kilometres
Explanation:
Population density is defined as the number of population per unit area of land
which can be expressed as
Population density =number of population/ land area
Since land area is usually given in square kilometres or square miles we convert 900 square meters to square kilometres
1 square kilometres =1000000 square meters
900 square meters=900/1000000=0.0009 square kilometres
Therefore, the population density of chipmunks in 2021= 231/0.0009 square kilometres =256,666.667 per square kilometres
Which statement about predator-prey populations is true?
A. The relationship between predator and prey populations keeps both populations in balance.
B. A decrease in the prey population is followed by an increase in the predator population.
C. An increase in the predator population is followed by an increase in the prey population.
D. two of the above.
Answer:
it is A
Explanation:
it A because it is a balance the predator eat the pray so it does not over populate
The phylogenetic tree shown shows the evolutionary relationships among finches
What can be concluded from this diagram?
A. Warbler finches and cactus finches are the most closely related.
B. Tree finches and warbler finches are the least closely related.
C. No finches have a common ancestor.
D. Tree finches and cactus finches have a common ancestor.
The phylogenetic tree shown shows tree finches and cactus finches have a common ancestor. So, the correct option is D.
What is Phylogenetic tree?A branching diagram that depicts the evolutionary relationships between a set of creatures, species, or genes is called a phylogenetic tree, sometimes referred to as an evolutionary tree. On the basis of the similarities and contrasts in their physical or genetic traits, it depicts the evolutionary history of these groups.
We can draw the conclusion that cactus and tree finches are more closely connected to one another than they are to any other finch species on the tree. The diagram does not indicate if tree finches and warbler finches are more or less closely related to one another, or whether cactus finches and warbler finches are.
Therefore, the correct option is D.
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GIVING BRAINLIEST!!!!!!
describe how the intestines, liver, stomach, and pancreas all work together.
Answer:
They work together in the digestive system to make the food originate from the esophagus to the anus.
Explanation:
Answer:
Glands in your stomach lining make stomach acid and enzymes that break down food. Muscles of your stomach mix the food with these digestive juices. Your pancreas makes a digestive juice that has enzymes that break down carbohydrates, fats, and proteins, along with your liver that makes a digestive juice called bile, which helps digest fats and some vitamins. The pancreas delivers the digestive juice to the small intestine through small tubes called ducts. Bacteria in your small intestine make some of the enzymes you need to digest carbohydrates. It also absorbs water with other nutrients. Bacteria in your large intestine help break down remaining nutrients and make vitamin K NIH external link. Waste products of digestion, including parts of food that are still too large, become stool.
Some extra info:
Stomach. Glands in your stomach lining make stomach acid and enzymes that break down food. Muscles of your stomach mix the food with these digestive juices.
Pancreas. Your pancreas makes a digestive juice that has enzymes that break down carbohydrates, fats, and proteins. The pancreas delivers the digestive juice to the small intestine through small tubes called ducts.
Liver. Your liver makes a digestive juice called bile that helps digest fats and some vitamins. Bile ducts carry bile from your liver to your gallbladder for storage, or to the small intestine for use.
Small intestine. Your small intestine makes digestive juice, which mixes with bile and pancreatic juice to complete the breakdown of proteins, carbohydrates, and fats. Bacteria in your small intestine make some of the enzymes you need to digest carbohydrates. Your small intestine moves water from your bloodstream into your GI tract to help break down food. Your small intestine also absorbs water with other nutrients.
Large intestine. In your large intestine, more water moves from your GI tract into your bloodstream. Bacteria in your large intestine help break down remaining nutrients and make vitamin K NIH external link. Waste products of digestion, including parts of food that are still too large, become stool.
Hope this helps, have a great day/night!
When would scientist be most likely to use the type of model shown in the illustration?
Answer:
When investigating the predator/prey relationships between the different organisms.
Explanation:
PLEASE HELP
After concluding his research, which statement would virchow agree with? check all that apply.
Living things come from nonliving things
Cells can come from nonliving materials
Frogs can come from mud
Living things can only come from living things.
Cells come from pre-existing cells
Answer:
cells come from pre-existing cells
Where are antigen and antibody found in your blood? What does “agglutination” mean?
Answer:
Explanation:
The ABO blood group system involves two antigens and two antibodies found in human blood. The two antigens are antigen A and antigen B. The two antibodies are antibody A and antibody B. The antigens are present on the red blood cells and the antibodies in the serum.
agglutination means, (with reference to bacteria or red blood cells) clump together.
*lf a strand has 35% adenine, what percent will be cytosine?
Answer:
35% - adenine
35% - thymine
Then you have cytosine which is paired with guanine and they will both have a percent of 15.
15% - guanine
15% - cytosine
Explanation:
Xylem and phloem carry out specific functions in a plant. Which of the following terms does not apply to either xylem or phloem? a. Specialized cells b. Eukaryotic cells c. Differentiated cells d. Prokaryotic cells
Please help meeeeeeeeeweewwwwweeeeee
Answer:
the answers are D, E and G
Explanation:
What kingdoms are Protist's NOT part of?
Answer:
Eukaryote; isn't a plant animal, or fungus
Explanation:
Because Protist has many organisms that are related to the other kingdoms of animals, plants, and fungi. Protists is a word that is know used as a "eukaryote that isn't a plant, animal, or fungus."
The punnets square shown presents a cross between two piranha. Both parents have large teeth. According to the chart which combination describes the offspring expected for the cross?
A) 50% large toothed 50% small toothed
B)75% small toothed and 25% large toothed
C) 75% large toothed and 25% small toothed
D) 100% large toothed
4. A student studying interactions between body systems constructs this table. The
student plans to fill out the table with phrases that describe an interaction between
each pair of systems.
Skeletal Circulatory Muscular Digestive Respiratory Urinary
Nervous
Skeletal
Circulatory
Muscular
Digestive
Respiratory
Urinary
Nervous
х
Which of these phrases could be placed in the position marked with an X?
Answer:I think it’s “provides nutrients to muscle cells
Explanation:
How does an amino acid-based hormone changes a cells activity
Answer:
such as glucagon, bind to membrane-bound receptors. The binding of the hormone triggers a signal transduction pathway, a process of molecular changes that turns the hormone's extracellular signal into an intracellular response.
Explanation:
How does an amino acid-based hormone changes a cells activity ?
The majority of amino acid-based hormones, such as glucagon, bind to membrane-bound receptors. The binding of the hormone triggers a signal transduction pathway, a process of molecular changes that turns the hormone's extracellular signal into an intracellular response.
I really hope this helps!! Have an amazing day <3
What makes leaves stop turning green in the winter?
Answer:
It is because in winters there in mostly less sunlight as compared to summer and as we all know that plants need sunlight frim photo synthesis so in Winter there is less chance of leaves turting to green
Hooe it helps
Un estudiante presenta una condicion especial llamada gigantismo su altura es mucho mayor que la de los compañeros de la misma edad y se descarta que la causa sea un problema heredero podemos suponer que este estudiante tiene insuficiente de la hormona esta hormona no ingresa a las celulas en su mecanismo de accion por se.
La respuesta correcta para esta pregunta abierta es la siguiente.
A pesar de que se te olvidó incluir las opciones o incisos para responder a tu pregunta, podemos comentar lo siguiente, basándonos en nuestro conocimiento sobre la materia.
Podemos pensar que la hormona que no produce este niño que sufre de gigantismo es la hormona llamada somatotropina. Esta hormona es muy importante durante el crecimiento y desarrollo del niño en la infancia porque secreta la adenohipófisis, una glándula vital para el correcto y proporcionado desarrollo en la etapa de la niñez.
Entonces, si no hay una secreción correcta de la hormona somatotropina, ésta hace que el niño desarrolle la condición llamada gigantismo.
Entonces podríamos decir lo siguiente.
Un estudiante presenta una condición especial llamada gigantismo su altura es mucho mayor que la de los compañeros de la misma edad y se descarta que la causa sea un problema heredero podemos suponer que este estudiante tiene insuficiente de la hormona de crecimiento o somatotropina. Esta hormona no ingresa a las células en su mecanismo de accion por ser una derivación de aminoácidos.
What is an ionic compound?
Answer:
Ionic compounds are ion compounds. These ions are atoms that gain or lose electrons, resulting in a net positive or negative charge. Metals tend to lose electrons, so they have a net positive charge and become cations. Non-metals tend to gain electrons, creating a net negative charge of anions.
Explanation:
4. Which system helps keep you healthy by carrying white blood cells throughout
the body which trigger immune responses when needed?
O A. Digestive system
B. Endocrine system
C. Respiratory system
D. Lymphatic system
5. True or False: The excretory system is responsible for inhaling and exhaling,
Answer:
4. It is the lymphatic system
5. False, the excretory system is responsible for waste material.
Explanation:
4. Darwin and Wallace both gathered a large number of observations and facts on which they based
their theories. Which of the following types of evidence was NOT part of the evidence they gathered?
a. fossil evidence
b. anatomical evidence
C. geographical distribution
d. genetic evidence
Answer:
c I hope I got it but have a good day
The type of evidence that should not be part of should be genetic evidence.
What is genetic evidence?It is the evidence where it predicted the no of human ancestors. Here the relation between the genetic diversity & the size of the population should be considered. So based on this, it received large no of observations and facts related to the fossil, anatomical, and the geographical evidence
Therefore, the option d is correct.
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In order to grow larger, an anthropod must go through
Answer:
They must shed their exoskeleton, or molt, in order to grow. The exoskeleton splits open. the animal emerges and swells to a larger size until the newer, larger exoskeleton is hardened.
What were the results Mendel consistently identified in his experiment
The mass of an object doubles. What happens to the gravitational force between it and another object whose mass stays the same, assuming they remain the same distance apart?
A. The amount of the gravitational force quadruples.
B. The amount of the gravitational force doubles.
C. The amount of the gravitational force decreases by one-half.
D. The amount of the gravitational force remains the same.
Answer:
part b is the right answer
Explanation:
The amount of the gravitational force doubles
When the mass of an object doubles; The amount of gravitational force between it and another object whose mass stays the same doubles.
Gravitational forceAccording to Newton's law of universal gravitation;
The gravitational force between two objects is directly proportional to the product of their mass and Inversely proportional to the square of their distance apart.On this note, since the mass of the other object is kept constant; the gravitational force is doubled when the mass of the object is doubled.
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Which type of system is shown below?
Students learned that the job of one body system is to filter out cellular
wastes, toxins, and excess water or nutrients. Which body system has
this function? *
A. Excretory system
B. Muscular system
C. Endocrine system
D. Skeletal system
HELP ME PLEASE ❤️
Answer:
A. Excretory system
hope it helps
What is the genetic relationship between individuals Level 1 - 2 and Level
III - 4
Answer:
Grandmother - grandson.
Explanation:
The genetic relationship between individuals Level 1 - 2 and Level III - 4 is grandmother - grandson because the gap between individuals is two generations. The circular shape represents male while on the other hand, the square shape represents female individual. So we know that in the first level, the second individual is square which means it is a female while on the other hand, in the third level, the fourth individual is circular that represents male so it is a relationship of grandmother - grandson.
based of these are true
A. Metal is denser than milk
B. Air and water are equal dense
C. Rain Water is less dense than fog
D. Orange Juice is denser than a whole orange
Answer:
A.
Explanation:
because solid metals will sink when placed on top of whole milk.
Metal is denser than milk is the property of density, these are true. Thus option A is correct.
What is density ?The density can be defined as its mass per volume and it is the ratio between mass and volume, where how much stuff of an object has in a unit volume.
Density is a calculation of matter, where it shows how tightly matter is mixed together, density was discovered by the Greek scientist Archimedes
The density of an object can be represented as the mass (m) can be divided by the volume (v)
Density = Mass/Volume
The SI unit of density is represented as kilogram per cubic meter (kg/m3) or in cgs unit it can be represented as grams per cubic centimeter (g/cm3).
Thus option A is correct.
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Question 23 of 35 Which phrase describes a plant spore but not a plant seed? A. Made of multiple cells B. Made in flowers C. Made of a single cell D. Made in cones
Answer:
the answer is C) made of a single cell
HELP ASAP PLEASEEEE
In a population of cats, a gene that controls an observable trait has several different alleles. Which of the following best explains how genetic drift might affect the genetic makeup of this cat population over time?
It is a directed process, so it might cause an increase in the gene pool's allele frequencies.
It is a nonselective process, so it might cause an allele to disappear from the gene pool by chance.
It is a random process, so it might cause a population to reach genetic equilibrium.
It is a selective process, so it might cause an increase in the population's genetic variation.
Answer:
It is a nonselective process so it might cause an allele to disappear from the gene pool by chance.
Use your knowledge of the mechanism of photosynthesis and the data presented in the chart to determine which of the statements is a correct explanation for the students' data.Group of answer choicesCup 2 had the highest rate of photosynthesis because it had the highest ratio of disks floating to wattage of light.Cup 1 had a low rate of photosynthesis because 0.5 grams of baking soda did not provide a sufficient amount of CO2.Cup 3 had the same rate of photosynthesis as Cup 1 because they had the same ratio of disks floating to wattage of light.Cup 4 had the lowest rate of photosynthesis because it had the least CO2.
Answer:
D. Cup 4 had the lowest rate of photosynthesis because it had the least CO2.
Explanation:
Carbondioxide gas is the main reactant for the process of photosynthesis which decides the production of food in the leaves. If plants has high amount of carbondioxide gas and water so in the presence of sunlight it produces more food in the leaves in the form of glucose so we can conclude that the lowest rate of photosynthesis occurs due to presence of least concentration of carbondioxide gas in the cup 4.
What is the primary cause of groundwater shortage?
A)
pollution
B)
use exceeding the rate of replenishment
C)
lack of precipitation
D)
all of the above
Answer:
D. All of the above
Explanation:
Pollution makes ground water un-usable
Rate of Replenishment causes droughts, at the rate we use it.
Lack of precipitation results in little rainfall, making no groundwater
Answer:
D
Explanation:
PLEASE HELP ME ON QUESTION 10 ASAP!!!!!! GIVING 20 POINTS!!!!!!!!!!!!!!!!!!
Answer:
its B (:
Explanation: