Population and Ecosystems Unit Test An increase in which of the following could increase the long-billed curlew population? (1 point) O milkweed o forest habitats grassland habitats O pesticide use
An increase in grassland habitats would increase the long-billed curlew population.
Factors that influence the ecosystemThe terrestrial ecosystems are made up of producers( green grass), the primary consumers, secondary consumers and decomposers.
The long-billed curlew are birds characterised by long beak that enables them to feed from the mud.
During summer, they fed mostly on insects, including beetles, grasshoppers, caterpillars, many others.
These insects in turn feeds on the grasses. Therefore, an increase in grassland habitats would increase the long-billed curlew population.
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Answer: Grassland habits
Explanation:
describe photosynthesis
Answer: photosynthesis is a process in which light energy is converted to chemical energy and used to produce organic compounds
Explanation:
Photosynthesis is the process through which plants make their own food using Sunlight, Groundwater and Carbon Dioxide.
Explanation:In the Chloroplast of plant cell, there is a green pigment known as chlorophyll. The chlorophyll captures the sunlight and with the help of soil water and Carbon Dioxide present in environment, it creates Carbohydrate which is Glucose (a form of sugar).
The above mechanism can be compressed in a single reaction given below.
[tex] \sf \: 6CO_2 +6H_2O \xrightleftharpoons{photosynthesis} C_6H_{12}O_6 + 6O_2[/tex]
The above reaction along with photosynthesis also explains how plants Convert toxic Carbon Dioxide to life saviour Oxygen.
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4. Which of the following statements best
describes blood flow in the human body?
A. As blood pressure increases, the rate of
blood flow decreases.
B. As the length of a vein decreases, the
resistance to blood flow decreases.
C. As the viscosity of the blood decreases,
the rate of blood flow increases.
D. As the diameter of a blood vessel
decreases, the rate of blood flow increases.
Answer:
as the blood pressure increases, the rate of blood flow decreases
Val lives along the dry southwestern coast of the United States. What change would be
most likely near her home if the wind started to blow from the Pacific ocean toward
the land?
1.The temperature would rise.
2.The humidity would increase.
3.The air pressure would
decrease.
4.The wind speed
decrease
The humidity would increase if the wind blow from pacific ocean towards the land due to presence of water vapors in the air.
What happen when the wind blow from the Pacific ocean toward the land?if the wind started to blow from the Pacific ocean toward the land the humidity would increase because the water vapors in the air of ocean brought by the wind towards the land.
So we can conclude that the humidity would increase if the wind blow from pacific ocean towards the land due to presence of water vapors in the air.
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1. The source of all energy
2. i producer
3. 2 primary consumers
4. 2 secondary consumers
5. 1 tertiary consumer
Make a food web.
Answer:
1. The Sun (sunlight radiation and etc.)
2. Trees (Any plants)
3. Rabbits and Deer (Herbivores)
4. Snakes and Foxes (Carnivores)
5. Hawks (Carnivores, they eat snakes/other secondary consumers)
Which of the following pieces of evidence would be considered the most reliable and valid? (1 point)
Odata collected from a controlled experiment that has been reproduced in several different labs
O data collected from a thousand individuals that cannot be reproduced under different circumstances
O data from a single observation of an event that has not been witnessed again
o data reported by a world-renowned expert that cannot be reproduced in a different lab
A piece of evidence that would be considered the most reliable and valid will be data collected from a controlled experiment that has been reproduced in several different labs.
Reliability of results
In scientific research, the reliability of results is improved if the result is reproducible by independent researchers under similar conditions.
Results that are not reproducible are not reliable and may not be accepted as evidence to support hypotheses or theories in science.
Thus, irrespective of who collected the data, reproducibility is a key attribute of reliable and valid data.
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if the original cell is dead, does it stay their or does it disappear after mitosis?
Answer:
It disappears. The cell disappears because it can no longer divide if it dies.
if the original cell is dead, the cell is almost dead too. It has no ability to divide itself too.
What are the types of cell division ?There are two types of division one is mitosis and the other one is meiosis.
Once mitosis completes, the cell has 2 groups of 46 chromosomes, each enclosed by their own nuclear membrane. The cell later splits in 2 by process called cytokinesis and creates two clones of the original cell each with 46 mono valent chromosomes.
Mitosis is a nuclear division in which duplicated chromosomes segregates and distributed into daughter nuclei. The cell will divide after mitosis in a process called cytokinesis in which the cytoplasm is divided and two daughter cells are formed.
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compare the functions of lysosomes, vacuoles and peroxisomes
Answer:
lysosomes which are also referred to as killer bugs destroy viruses that enters the body, while the vacuole helps to maintain water balance and the peroxisomes helps in oxidation reaction and metabolism
Select the correct answer. What is the approximate solution to this equation? 19+ 2lnx = 25 A. 3 B.0.05 C. 20.09 D. 1.93
Answer:
C. 20.09
Explanation:
Lewis is exercising and his muscles need oxygen. Which best describes how systems interact to bring his body into homeostasis? The circulatory system brings oxygen to the respiratory system, which delivers oxygen to the muscular system. The respiratory system brings oxygen to the circulatory system, which delivers oxygen to the muscular system. The respiratory system brings oxygen to the circulatory system, which delivers oxygen to the skeletal system. The circulatory system brings oxygen to the respiratory system, which delivers oxygen to the skeletal system.
The respiratory system brings oxygen to the circulatory system, which delivers oxygen to the muscular system. Therefore, option (B) is correct.
What is respiratory system?The respiratory system is the biological system that facilitates the exchange of gases between an organism and its environment. It is responsible for the intake of oxygen, which is used for cellular respiration and energy production, and the removal of carbon dioxide, which is a waste product of cellular metabolism. The respiratory system includes the lungs, airways, and other structures involved in breathing.
The respiratory system is responsible for bringing oxygen into the body and removing carbon dioxide, while the circulatory system transports oxygen-rich blood from the lungs to the muscles, where it is needed for energy production. The muscular system then uses the oxygen to produce energy and power movement. These systems work together to ensure that Lewis's body is able to maintain a state of balance, or homeostasis, during exercise.
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draw Mrna strand that is complimentary to the DNA strand AATTGC
Answer:
UUAACG
Explanation:
mRNA is 5"-----> 3"The difference between mRNA and DNA. mRNA does not have T instead it has UComplement (A, C, G, T(U)) are used to make the complement strandsA-T or UG-CA Little hint
Apple in the Tree (remeber to replace T with U if you are making mRNA)Car in the GarageNormal human blood plasma contains all the amino acids required for the synthesis of body proteins, but not in equal concentrations. Why are alanine and glutamine present in much higher concentrations than any other amino acid in the blood
Answer: Alanine and glutamine play special roles in the transport of amino groups from the muscle and from other nonhepatic tissues, respectively, to the liver.
Explanation:
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What is the probability that parents with genotypes Ee and ee will have a child with attached earlobes? Explain
Answer:
50% chance
Explanation:
Because there is no dominant over recessive and it's big E and little e which shows 50% chance
Answer:
50%
Explanation:
Make a punnet square. Since attached earlobe is recessive the genotype must be ee. And that occurs 50% of the time. Glad to help :)
Determine the stability of each ecosystem. 1. an ecosystem with populations that mate with unrelated species. 2. an ecosystem that has very few species at every trophic level. 3. an ecosystem with populations that mate with only related species. 4. an ecosystem that has many species at every trophic level. Less Stable More Stable
The number of species and the mating patterns of species in an ecosystem will make it either more or less stable.
What is the stability of an ecosystem?The stability of an ecosystem refers to the ability of that ecosystem to remain relatively unchanged in the composition of both biotic and abiotic factors over a long period of time.
The stability of an ecosystem depends on the changes that occurs in the ecosystem.
Considering the above situations;
an ecosystem with populations that mate with unrelated species will be less stable.an ecosystem that has very few species at every trophic level will be less stable.an ecosystem with populations that mate with only related species will be more stablean ecosystem that has many species at every trophic level will be more stableTherefore, the number of species and the mating patterns of species in an ecosystem affects the stability of the ecosystem.
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Diseases such as colds or influenza are caused by a
bacterium
parasite
fungus
virus
How does the binding affinity of a transcription factor to DNA affect the efficiency of Protein Synthesis?
Answer:
The addition of transcription factor-binding sites could affect relative DNA replication efficiency in a number of ways. Each added site could produce an additive increase in replication efficiency, or one of the added sites could be responsible for all of the observed increase in RRE.
1 points
One of the functions of the trachea is to filter the air we breathe before it reaches the lungs and remove any captured particles from the
airway. Name the tissue type shown below, which is found along the surface of the trachea.
Simple cuboidal
Stratified columnar
Stratified cuboidal
Simple squamous
Pseudostratified colurnar
Answer:
Pseudostratified columnar epithelium
List three purposes of marking and recapturing the organism (snake)?
Answer:
this is called The Mark-Recapture technique this is used to estimate the size of a population where it is impractical to count every individual. The basic idea is that you capture a small number of individuals, put a harmless mark on them, and release them back into the population.
Explanation:
I do hope this helps with this...I tried
What is the best measure of biodiversity? Is it
• the total number of species in an area
• the even distribution of species across that area
• whether or not rare species are present
• Whether or not the species have different “functions” in the ecosystem?
The pressure at the top of Mount Everest is 253 mm Hg. Is this greater or less than 0.25 atm?
Answer:33.7 kPa x 1atm over 101.3 kPa = 0.33 atm >0.25 atm
Explanation:
What determines the capacity of the torch and the tip
being used?
A.Base Metal Type
B.Metal Thickness
C. Shielding Gas
D. Hose Length
Answer:
B : Metal thickness . METAL THICKNESS determines the capcity of the torch and the tip being used .
Answer:
What determines the capacity of the torch and the tip being used?
B. Metal Thickness
Explanation:
The welding tip size determines the flame size. The metal thickness and joint design dictate the correct tip size. The oxy-acetylene welding gas pressures are set according to the manufacturer's guidelines.
List three things that are limiting factors on the growth of a population.
Answer:
in my opnion, in the natural world, limiting factors like the availability of food, water, shelter and spacecan change animal and plant populations. Other limiting factors, like competition for resources, predation and disease can also impact populations.
Explanation:
Identify the sedimentary rock composed of halite and explain how this rock is usually formed.
The sedimentary rock composed of halite is known as rock salt, and it is usually formed by the process of evaporation, and rock salt is formed in environments where there is a high concentration of salt in water.
What is rock salt?Rock salt is formed in environments where there is a high concentration of salt in water, such as salt lakes, shallow seas, or salt pans, and when the water in these environments evaporates due to high temperatures and low precipitation, the dissolved salt in the water is left behind and forms deposits. These deposits can be buried by sediment over time and eventually become compacted and cemented to form rock salt. Rock salt is made up almost entirely of the mineral halite, which is composed of sodium and chlorine ions.
Hence, The sedimentary rock composed of halite is known as rock salt. It is usually formed by the process of evaporation.
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The materials of the crust have less mass than materials deeper in the earth.
True
False
Answer:
True
Explanation:
The crust makes up less than 1% of earths mass.
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A student used individuals plastic blocks that snap together to build four walls and a roof. Then, the student connected the walls together, put on the roof, and added a plastic door in one of the walls to make a house. If we used this model to represent the organization of living things and we let the house represent an organ, what do the individual plastic blocks represent?
A. Cells
B. Tissues
C. Organelles
D. Organisms
Answer:
tissues
Explanation:
I would probably use tissues because the tissue is a biological organizational level between cells and a complete organ. I hope this helps...
Who was the first to make accurate observations without a telescope of our solar system?
Answer : Tycho Brahe
How are human populations NOT likely to be impacted by global warming?
A. Freguent intense storms
B. Rising power costs
C. Rising ses levels
D. Increased temperatures
Answer:
Rising power costs
what is biology give defecation with example also (only pakistani and indians)
A small population of native red birds lived in a habitat that did not undergo changes for a long period of time. The birds were geographically isolated from other red birds. Predict the effects of natural selection on this population of birds.
The red birds would develop traits that would help them to be better suited.
The population of the isolated red birds would have less genetic variation than the parent population.
This population of red birds would continue to have a similar genetic makeup to the native population.
Only specific alleles of traits would increase in the red birds.
Answer:
The population of the isolated red birds would have less genetic variation than the parent population.
Explanation:
i took the test
Answer:
The population of the isolated red birds would have less genetic variation than the parent population.
Explanation:
Hope this helps :)
Task 2
Presenting a Persuasive Argument
In this activity, you’ll use presentation software to create a presentation of 10 to 15 slides that predicts how Earth’s climate zones (polar, temperate, and tropical) will change over the next century. You’ll use what you learned about the climate zones in Task 1. Your presentation should answer these questions:
Which types of climactic events do you predict will alter the climate zones?
How will climate zones be affected?
What evidence from online or other sources supports your predictions?
How might changing climate zones affect the plants and animals that live in them?
Follow the steps provided to plan and create your persuasive presentation. Do additional research if necessary and use this guide to writing a persuasive argument.
Estimated time to complete: 2 to 3 hours
Part A: Forming a Thesis
A thesis statement is the central idea of your argument. It should be focused and provide answers to the question, What am I trying to claim? It should tell listeners how you think Earth’s climate zones will change over the next century. Write your thesis statement in the answer space.
Greater climatic change in the next century is expected higher as compared in the past.
How Earth’s climate zones will change over the next century?Across the globe due to increases in greenhouse gases such as carbon dioxide (CO2) in the atmosphere, temperature and precipitation patterns shows great change. The rate of climatic change in the next century is expected higher than nowadays.
So we can conclude that greater climatic change in the next century is expected higher as compared in the past.
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