1. biotic
2.Natural environment
Ecosystem ecology refers to how energy and nutrients come into an environment and move around.
What is ecosystem?Ecosystem ecology is concerned with the interactions and movements of energy and nutrients within an ecosystem, which are critical for understanding how ecosystems work.
Photosynthesis by primary producers, such as plants, introduces energy into ecosystems, which then flows through the food chain to consumers.
Nutrients such as carbon, nitrogen, and phosphorus cycle through the ecosystem via biological and geological processes and are critical for the ecosystem's health and productivity.
Understanding how energy and nutrients enter, move, and cycle within ecosystems is therefore critical for understanding ecosystem functioning and sustainability.
Thus, the movement of energy and nutrients in an ecosystem is referred to as ecosystem ecology.
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The dichotomous key below provides a way to classify some animals into groups according to their physical characteristics. The key can be used to classify each of the four animals represented below. Which answer choice shows the correct classification group for each animal? 1. Wasp = group D; Ant = group D; Tiger = group A; Bird = group B 2. Wasp = group B; Ant = group A; Tiger = group D; Bird = group C 3. Wasp = group B; Ant = group D; Tiger = group A; Bird = group C 4. Wasp = group D; Ant = group A; Tiger = group A; Bird = group B
Complete question:
The dichotomous key below provides a way to classify some animals into groups according to their physical characteristics.
Dichotomous Key
I wings------------------go to II
no wings------------- group A
II feathers---------------group B
no feathers----------go to III
III two legs------------- group C
six legs---------------group D
The key can be used to classify each of the four animals represented below ⇒ wasp, ant, tiger, bird
Which row in the chart shows the correct classification group for each animal?
Row Wasp Ant Tiger Bird
(1) group D group D group A group B
(2) group B group A group D group C
(3) group B group D group A group C
(4) group D group A group A group B
Answer:
Row Wasp Ant Tiger Bird
(4) group D group A group A group B
Group A: Tiger and Ant → They do not have wingsGroup B: Bird → It has wings and feathersGroup D: Wasp → It has wings, does not have feathers, and has six legsExplanation:
When analyzing a dichotomous key, you just need to pay attention to the given descriptions and carefully observe the organisms you have.
The key describes specific morphological traits of each organism that are useful to differentiate it from other organisms. So all you need to do is to follow the instructions given in each step, and the key will guide you directly to the answer.
In the exposed example you have four organisms: wasp, ant, tiger, bird
The provided key gives you three steps: I, II, III.
Step I:
wings------------------go to II
no wings------------- group A
Here the key tells you to separate, from your group of organisms, the ones that have wings from the ones that do not have wings.
wasp and bird have wings → So you need to go to step IItiger and ant do not have wings → So they belong to Group AStep II:
feathers---------------group B
no feathers----------go to III
Now you only need to consider the bird and the wasp, which are the two organisms that have wings.
Here the key tells you to separate the one that has feathers from the one that does not have feathers.
Bird has feathers → So it belongs to the group BThe Wasp does not have feathers → So you need to go to step IIIStep III:
two legs------------- group C
six legs---------------group D
In this last step, the key takes you to two possible groups. But you only have one left organisms, which is the wasp. So what you need to do is to observe how many legs your wasp has. It is an insect, so it has six legs. The wasp belongs to Group D.
You do not have any organism that belongs to group C.
To sum up, according to the given information you could group the group of organisms as follows:
Group A: Tiger and Ant → They do not have wingsGroup B: Bird → It has wings and feathersGroup D: Wasp → It has wings, does not have feathers, and has six legsIf a cell has a diploid number of 8 (2n = 8) before meiosis, how many chromosomes will be in each of the four daughter cells after meiosis II if one pair of homologous chromosomes experiences nondisjunction in meiosis I? Show how you got the answer by drawing out the process, starting with the diploid cell undergoing meiosis I (where nondisjunction occurs) and then meiosis II to get the four daughter cells.
Answer:
The final product is four gametes, two of them with 5 chromosomes, and the other two with 3 chromosomes each.
Explanation:
If nondisjunction occurs during meiosis 1, a pair of homologous chromosomes fail to separate, and one of the daughter cells will have the two chromosomes while the other cell will not get any chromosome from the pair.
If meiosis 1 occurs normally, but nondisjunction occurs in meiosis 2, sister chromatids fail to separate.
The usual process of meiosis produces four daughter haploid cells (n) from a diploid germ cell (2n). Each daughter cell is haploid because they have half the number of chromosomes of the original one.
If the diploid number of the original cell is 8 (2n=8), then under normal conditions, each haploid daughter cell should have 4 chromosomes (n = 4).
But in the exposed example, one pair of homologous chromosomes experiences nondisjunction during meiosis I (in the attached file, you will recognize this pair as the red one). The other chromosomes separate as usual. So one of the daughter cells will have one extra chromosome than expected (five instead of four), and the other daughter cell will lack one chromosome (three instead of four). Meiosis II occurs normally. The final result is the formation of four gametes, two of them with 5 chromosomes, and the other two with 3 chromosomes each.
solute concentration
is higher outside the
cell causes the cell
shrink.
If these are your answer choices -
A. Hypertonic solution
B. Isotonic solution
C. Hypotonic solution
D. Both A and C
then your answer is:
Correct option is - A
Hypertonic solution
A hypertonic solution is a particular type of solution that has a greater concentration of solutes on the outside of a cell when compared with the inside of a cell. Water crosses the cell membrane in both directions, but more water leaves the cell than enters it. Therefore, the cell will shrink due to exosmosis.
factoring web analysis
Answer:
Factor analysis is a collection of techniques employed to explore underlying latent variables or factors which influence the outcomes on a number of measured variables.
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Which BEST describes how the removal of the trees and plants will affect the level
of carbon in the atmosphere?
A. The level of carbon in the atmosphere will decrease because there are
fewer sinks in the ecosystem.
B. The level of carbon in the atmosphere will increase because there are
fewer sinks in the ecosystem.
C. The level of carbon in the atmosphere will decrease because there are
fewer sources in the ecosystem.
D. The level of carbon in the atmosphere will increase because there are
fewer sources in the ecosystem.
Answer:B. The level of carbon in the atmosphere will increase because there are fewer sinks in the ecosystem.
Explanation:
The best description to remove the trees and plants will affect the level of carbon in the atmosphere is the level of carbon in the atmosphere will increase because there are fewer sinks in the ecosystem.
What is carbon dioxide?Carbon dioxide is a gas present in the air. The plants reduce carbon dioxide by consuming it in the process of photosynthesis. Carbon dioxide increase the warmth of the earth, so reducing the carbon dioxide is necessary for the environment.
Thus, the correct option is B.
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In humans, brown eyes are dominant to
blue eyes. What is the probability
that two heterozygous brown-eyed
parents will have a child with blue
eyes?
J. 25%
K. 50%
L. 75%
M. 100%
Answer:
j
Explanation:
since brown eyes are more dominant than blue eyes chances of it is 3/4
Answer:
The answer is J. 25%.
Explanation:
In this problem, we know brown eyes are dominant to blue eyes. We can let the dominant allele for brown eyes be represented by "B" and the recessive allele for blue eyes be represented by "b". Since it is given that both parents are heterozygous, we know that they must have the genotype Bb.
When two Bb individuals are crossed, the offspring will be 1 BB : 2 Bb : 1 bb, or 3 brown : 1 blue ratio. Therefore, 1/4 of the offspring will have blue eyes, which represents 25%. Thus, the correct answer is choice J, 25%.
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Which of the following best describes the role of scientific knowledge in society?
a.
Advances in scientific knowledge have predictable consequences.
b.
Advances in scientific knowledge can be beneficial to society if applied responsibly.
c.
Advances in scientific knowledge lead to few changes in society.
d.
Society is uninfluenced by advances in scientific knowledge.
Answer:
b
Explanation:
edg 2021
The role of scientific knowledge in society is that the advances in scientific knowledge can be beneficial to society if applied responsibly. Thus, the correct option will be B.
What is the role of Scientific knowledge?Scientific knowledge is referred to as a generalized body of laws and theories which are used to explain a phenomenon or a behavior of interest that are acquired by people using the scientific method and knowledge.
Laws are observed patterns of phenomenon or behaviors, while the scientific theories are systematic explanations of the underlying phenomenon or the behavior observed.
The role of scientific knowledge in society is that the advances in the scientific knowledge can be beneficial to the society as a whole if applied responsibly.
Therefore, the correct option will be B.
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NO LINKS PLEASE
In the predator-prey relationship between lions and zebras, when the population of zebras is great, the population of lions will
A. decrease
B. increase
C. stay the same
D. die off
Answer:
B. Increase
Explanation:
Since lions rely on zebras as a food source, if there are more zebras (more food sources for the lions), there will also be more lions. Therefore, the lion population would increase initally.
What type of power plant uses plant organic material and soil of plants as well as their waste products to generate electricity? Help fast ill put you brainlest
Answer:
Biomass power plant
Explanation:
it tells u from tittle too BIO
Vaccinations help prepare the body to fight invasions of a specific pathogen by
Answer:
2. Stimulating antibody production.
Explanation:
in your own words, write the definition for Phagocytosis.
how is Phagocytosis related to endocytosis?
Answer:
Process by which phagocytes ( a type of cell from the immune system) engulf other particles
Explanation:
Endocystosis is the process of bringing particles/substances into a cell (endo-in). Therefore phagocytosis is a form of endocytosis.
whats sex? BTW i am 15
Answer:
it is where two people who like each other do things. your 15 and dont know
Explanation:
Which of the organisms shown does not eat another organism for food.
Answer:
it's cockroach it carries it
Answer:
fungi
They don't eat each other
the water in ponds and lakes is...
Answer:
freshwater
Explanation:
Answer:
Lakes and ponds are inland bodies of standing or slowly moving water.
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PLEASE HELP!!! Giving 20 points! Explain the MAJOR differences between single-celled and multi-cellular organisms and give examples of each.
Answer:
Unicellular Organism (Single Celled Organism):
- They contain a single cell in their body.
- They are only visible under the microscope.
- Their life spam is comparatively short.
For example: Amoeba, Paramecium, etc.
Multicellular Organism:
- They contain numerous cells in their body.
- They can be seen with our naked eyes
- Their life spam is comparatively long.
For example: Human, Birds, etc.
Which of the following statements is MOST accurate: Group of answer choices Animals evolved during the Cambrian Explosion because the Earth was organized into a supercontinent called Pangea Animals evolved during the Cambrian Explosion because oxygen on Earth had become abundant Animals evolved during the Cambrian Explosion because the Earth had just recovered from an asteroid impact Animals evolved during the Cambrian Explosion because carbon dioxide on Earth had become abundant
Answer:
Animals evolved during the Cambrian Explosion because oxygen on Earth had become abundant.
Explanation:
Photosynthesis could be responsible for the rise in the amount of oxygen in the seas and atmosphere near the beginning of the Cambrian. This rise of oxygen concentration allowing the evolution of larger animals having complex respiratory and circulatory systems. So we can conclude that evolution in the physical and genetical characteristics of animals occur during the Cambrian Explosion.
somebody pls help I’m not even sure how to answer but I think it’s between a and d
Answer:
A
Explanation:
in your own words, what is the definition for Diffusion?
Answer:
Diffusion basically means the spreading of something that's wide or the action of spreading the light from a light source that reduce glare and harsh shadows.
Interphase happens before MITOSIS and MEIOSIS
A. True
B. False
Answer:
A. True
Explanation:
The S phase of a cell cycle occurs during interphase, before mitosis or meiosis, and is responsible for the synthesis or replication of DNA. In this way, the genetic material of a cell is doubled before it enters mitosis or meiosis, allowing there to be enough DNA to be split into daughter cells.
Why does it make sense that some of the longest and most powerful muscles in the human body are located in your thighs? Pls help...
Answer:
huh? i dont know..
[extra characters]
The gluteus maximus is the largest muscle in the human body. Its role in maintaining the body's trunk in an upright position makes it big and strong.
What are muscles?Muscles are defined as a collection of muscles that contract together to generate force.
Muscle is coordinated systems of contractile tissue for better performance.
It can also be defined as an organ made of muscular tissue that moves in a specific way when it contracts.
A person's muscles enable them to move, speak, and chew.
They manage digestion, respiration, and heartbeat.
Other, seemingly unrelated systems like regulating body temperature and vision also depend on the muscular system.
There are three types of muscles.
Cardiac musclesSmooth musclesSkeletal musclesThus, the largest muscle in the human body is the gluteus maximus. Its role in maintaining the body's trunk in an upright position makes it big and strong.
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Why do Galapagos sharks lie still on the ocean floor?
O A. They are being social.
OB. Scientists still don't know why.
O C. They are sleeping.
OD. They are waiting for food.
Answer:
Either B. or D.
Explanation:
I don't know for sure, these two answers just seem better than the others.
how many different processes can be involved in changing the allele frequency?
A. 10
B, 1 only natural selection
C. 4
D. 5
E. Way too many count.
Answer:
5
Explanation:
The Hardy-Weinberg equilibrium principle says that allele frequencies in a population will remain constant in the absence of the four factors that could change them. Those factors are natural selection, mutation, genetic drift, and migration (gene flow). In fact, we know they are probably always affecting populations.
Answer:
D. 5
Explanation:
There are 5 factors can be involved in changing the allele frequency.
NEED HELP ASAP PLEASE
5. What is the difference between radial and ulnar loops?
1. Radial loops point toward the pinky (radius bone) and ulnar loops toward the thumb (ulna bone)
2. Radial loops point toward the thumb (radius bone) and ulnar loops toward the pinky (ulna bone)
3. Radial loops point right and ulnar loops point left
4. Radial loops point toward the head (radial region) and ulnar loops towards the feet (ulnar region)
Answer:
Radial Loop – This pattern is similar to the ulnar loop, but the difference is the turns point toward the thumb instead of the small finger.
The difference between radial and ulnar loops is that the radial loops point toward the thumb (radius bone) and the ulnar loops toward the pinky (ulna bone). Thus, the correct option for this question is B.
What is a Radial loop?A radial loop may be defined as the term that significantly describes the radius of a bone in the forearm that generally adjoins the hand on the same side with respect to the thumb.
While the ulnar loop governs the same arrangement of bones in the forearm but they usually adjoin the hand on the same side with respect to the pinky (small) finger.
Therefore, the radial loops point toward the thumb (radius bone), and the ulnar loops toward the pinky (ulna bone) is the statement that represents the difference between radial and ulnar loops.
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What is the mass of the green cone?
Answer:
500 g
Explanation: trust
Answer:
500 g
Explanation:
i guessed:)
What molecule brings amino acids to the ribosome during translation?
A. mRNA
B. rRNA
C. tRNA
Answer:
A. mRNA
Explanation:
The mRNA brings amino acids to the ribosome during translation.
¿como realizaban el proceso de fotosíntesis los primeros organismos unicelulares?
insulin and glucagon are produced in the;
Explain the presence of starch in the parts of a plant that do NOT contain chlorophyll.
Answer:
In the leaf, excess glucose is rapidly converted to starch, so we test leaves for starch to show that photosynthesis has happened, rather than testing for glucose. We often indicate that light and chlorophyll are required for the process by adding them to the equation near the arrow.
Experimental Scenario
Donna has observed that her father can control the speed of their grandfather clock by adjusting the
height of the weight on the end of the pendulum. Donna thinks that the pendulum will move faster
when the weight is lowered, and wants to test her idea. Donna gets a stopwatch and measures the
time it takes for the pendulum to swing twenty times when the weight is moved to its lowest position.
Donna begins to move the pendulum up by 1 cm and continues to measure the time for twenty swings
of the pendulum. Donna records her data
SCI 1.4 Investigation Plan
1) Provide a brief description of the methods that are being used to run the experiment
Answer:
Reduce the mass and measure the speed of pendulum.
Explanation:
First measure the swings of the pendulum at its original weight. After that some weight is removed from the pendulum and again measure the number of swing of pendulum at specific time period. We have to reduce mass of pendulum and then measure the number of swings. In this way, this experiment moves forward and we can find out the impact of mass on the speed of pendulum.
Which of the following characteristics of life apply to bacteria?
A)They evolve
B)They reproduce
C)They use energy
D)All of the above
Answer:
All of them above
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Answer:
It should be D
All of the above