Answer:
The Stomata
Explanation:
It transpires water & creates a vacuum to draw more water up the stem
Answer:
A. stomata
Explanation:
In light-dependent reactions, the oxygen leaves the plants through the stomata.
What would you expect to happen if sea otters were
removed from this food web? Check all that apply.
The population of elephant seals would decrease.
The population of kelp crabs would increase.
The population of kelp would increase.
The population of sea urchins would decrease.
Answer:The population of kelp crabs would increase
Explanation:
According to the question, The population of kelp would increase.
A food web consists of all the food chains in a single ecosystem.
What is a food web give example?A food web is formed by many food chains operating together. A food web operating in a grassland. Five food chains are possible in this food web, Grass → Grasshopper → Rat → Fox.
Thus, option "B" is correct.
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What section of dna are used in dna fingerprinting
Answer:
Repetitive DNA sequences "minisatellites." The two major uses for the information provided by DNA-fingerprinting analysis are for personal identification and for the determination of paternity. DNA fingerprinting is based on DNA analyzed from regions in the genome that separate genes called introns.
Which graph shows the presence of nitrogen-fixing bacteria in the soil
Answer:
2
Explanation:
The graph that shows the presence of nitrogen fixing bacteria in the soil would be graph 2.
Nitrogen fixing bacteria are bacteria that are capable of converting atmospheric nitrogen into plant-usable nitrogen in the soil. The conversion is done in two stages;
1. First, atmospheric nitrogen is converted into ammonia.
2. Ammonium is converted into usable nitrate
Hence, the correct graph is the one in which the amount of atmospheric nitrogen decreases with a corresponding increase in the amount of ammonia. This would indicate the conversion of nitrogen into ammonia which is the first step in nitrogen fixation by nitrogen-fixing bacteria.
Graph 2 represents the presence of nitrogen-fixing bacteria in the soil.
This is because in this graph the concentration of atmospheric nitrogen (N2) is lower and the concentration of ammonium (NH4) is higher. The nitrogen-fixing bacteria converts or fixes atmospheric nitrogen that can't be absorbed by the plants into ammonium or nitrates which can be absorbed by the plants and make necessary amino acids for the body so we can conclude that graph 2 indicates the presence of nitrogen-fixing bacteria in the soil.
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Arranging items by order or category is called ?
Answer: it is called sorting or in other words sequence order
Explanation: Already Learned This In Class
Select the correct answer.
How many particles are in a mole?
Question 7 of 30
1 Point
DNA is made up of pairs of nitrogenous bases. Which of the following
nitrogenous bases is paired correctly?
O A. Adenine-guanine
O B. Guanine-guanine
O C. Guanine-cytosine
O D. Cytosine-thymine
SUBMIT
Answer:
C. Guanine-cytosine
Explanation:
Which statement about enzymes is true?
Answer:
Enzymes are globular proteins made of long linear chains of amino acid that fold to produce a dimensional molecule.Enzymes are bio catalysts that speed up the biochemical reaction and are not changed during the reaction
Answer:
Explanation:
Enzymes are protein ordained catalyst which speed up reaction s in a living organism and they work under a given temperature and pH depending on the function
If all earths ice melted what will happen
A diet rich in sodium and vitamins helps to maintain good bone growth and
development
O True
O False
What is difference between infectious and non infectious ...
Non infectious dieases can't be catched by others unlike infectious diseases.
Answer:
Infectious means it can be spread why non-infectious means it can't be spread.
Explanation:
Hope it helps.
A plant with variegated (two-coloured) leaves was left in the sun for several hours. A piece of one of its leaves were then detached (removed) and tested for sugar.
Explain, as fully as you can, why the yellow region of the leaf had not produced sugar. (5 marks)
Answer:
The yellow leaf was not exposed to the sun so it can't produce sugar.
Explanation:
The yellow region of the leaf didn't produce sugar because it wasn't exposed to sunlight. Part of the leaf was exposed to the sun, thus this leaf produced sugar, while the yellow part of the leaf did not because it was not exposed to the sunlight.
1. How are populations of chimpanzees affected by slash and burn agriculture? 2. Which features of chimpanzees make them more disadvantaged than other primates?
Answer:
1. Slash and Burn agriculture refers to a technique of farming that requires plants in a forest or woodland to be decimated to create a cultivable expanse of land.
Some of these plants are usually homes to wild chimpanzees. The more they are cut down, the deeper into the forests they would migrate, that's if they ever find a place like it.
2. When compared to the other primates such as monkeys, baboons, etc their larger body size, puts them at a disadvantage. This is because when they are placed in a restricted space, they need more food which in turn translates to increased height and weight.
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In a sample of double-stranded DNA, 30% of the nitrogenous bases are adenine (A).
What percentage of the nitrogenous bases in the sample are thymine (T)?
Choose 1 answer:
A. 20%
B. 30%
C. 60%
D. 70%
Answer:
30% thymine
Explanation:
If 30% of Adenine is present, it would be reasonable to assume that 30% of Thymine will be present, as the ratio between the two complementary nitrogenous bases will be roughly equal. Therefore, that leaves us with 40% between Cytosine and Guanine.
Our experiment was to keep one seedling set in a light place and the other set in a closed cardboard box. So my question is to explain why it is important to keep one set of seedlings in the light. I hope to get a perfect answer
Answer:
To examine the importance of light to a plant's growth.
Explanation:
To give a background to this question, I will define a key term "Photosynthesis". Photosynthesis is a compound word made up of photo (which means "light") and synthesis (which means "to put together").
It is the process by green plants use sunlight to obtain nutrients from carbon dioxide and water.
The experiment us meant to examine the effect of deprivation of sunlight on a plant's growth.
Therefore, the essence of keeping one set of seedlings in the light is to compare if there is any difference in growth between the seeding kept in the dark cupboard and that kept in the light.
This enables us to conclude whether or not light is important for the growth of a plant.
a. When a person gets a stroke or heart attack, brain or cardiac (heart) muscles die. Why is this a
problem?
what is population density? What is the formula for calculating population density?
Answer:
Explanation:
To calculate the population density, you will divide the population by the size of the area. Thus, Population Density = Number of People/Land Area. The unit of land area should be square miles or square kilometers.
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Which best explains how the green areas depicted in the image on the left are reflected in the population map on the right?
Populations are greater in fertile areas that are close to freshwater sources, which is why more people live near deserts.
Populations are greater in fertile areas that are close to freshwater sources, which is why more people live near oceans.
Populations are greater in fertile areas that are close to freshwater sources, which is why more people live near mountains.
Populations are greater in fertile areas that are close to freshwater sources, which is why more people live near rivers.
Answer:
D. Populations are greater in fertile areas that are close to freshwater sources, which is why more people live near rivers.
Explanation:
Population is greatly depend on the availability of water. Those areas are densely populated areas where water is present in sufficient quantity as compared to those areas have low population density where water is in low amount. The main reason is that water plays a vital role in our daily life which is used almost in every aspects of life. We can see that deserts have less population due to less water availability and areas attached to the rivers are densely populated due to more water availability.
Answer:
D
Explanation:
Population is greatly depend on the availability of water. Those areas are densely populated areas where water is present in sufficient quantity as compared to those areas have low population density where water is in low amount. The main reason is that water plays a vital role in our daily life which is used almost in every aspects of life. We can see that deserts have less population due to less water availability and areas attached to the rivers are densely populated due to more water availability.
explain how urine is formed in our body
Answer:
Urine is a liquid by-product of metabolism in humans and in many other animals. After the filtration of blood by kidneys, urine is produced. It is them passed through the ureters to the bladder to store it. While urinating, the urine is passed from the bladder through the urethra to discharge it.
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In the text area below describe the function of the
cell wall.
DONE
Answer:
The cell wall supports and protects the cell, determines the shape of the cell, assists cells in communication, stores carbohydrates, and allows water and smaller particles to enter the selectively permeable structure of the cell.
Angelina is learning how to build circuits. She starts by connecting a light bulb to a battery with copper wires. In her studies, she reads that the current flows due to a difference in potential energy in the system. Which statement describes what is happening to cause current to flow? A. Voltage is when current flows from lower to higher potential energy. B. Voltage is when current flows from higher to lower potential energy. C. Amperes is when current flows from lower to higher potential energy. D. Amperes is when current flows from higher to lower potential energy.
Answer:
B. Voltage is when current flows from higher to lower potential energy.
Explanation:
Voltage refers to the difference in electric potential between two points. Current in the wire always flow from higher potential to lower potential due to voltage. At the electric source, voltage of current is high but when it moves through wire, the amount of current decreases when it reaches to the other end of the circuit. This is because of the resistance present inside the wire which causes heat energy and some of the current is lost.
The correct answer is option B. Voltage is when current flows from higher to lower potential energy.
What is voltage?
Voltage is the difference in charge, in this case, made by the electrons, that results in electrons flowing from a place of high concentration to one of low concentration. We call the flow of electrons current, and we measure voltage in Volts (V).
What is Amperes?It is a unit that we use to measure the intensity of the current.
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What group behavior is being displayed by the cattle grouping together?
Answer:
It is called a social behavior.
Explanation:
Group behavior is a term that expresses the manner of behavior among two or more interacting specie of organism to achieve a purpose. Various organisms show different group behaviors.
When cattle group together, they display a herding ungulates as the behavioral group. They come together to achieve a particular objective which could be for protection, survival, feeding etc. Thus forming a social group and interact among themselves.
Two scientists do not agree on which type of grocery bag is better for the environment. The Outcome of their disagreement is most likely to be:
Answer my question , ty .
Answer:
answer is D
Explanation:
10. Which of the following groups of organisms are prokaryotic? (Choose all that apply)
Archaea
Or
Plants
Or bacteria
Or fungi
Answer:
Archaea bacteria
Explanation:
just search each answer choice asking if its eukaryotic or prokaryotic and it will tell you
Bacteria and Archaea are groups of organisms that are prokaryotic, which means that their cells do not have cellular organelles or a delimited nucleus in the cytoplasm.
The prokaryotic cell is characterized by not having a cell nucleus, therefore its ribosomes are smaller and its genetic material simpler.
Prokaryotes are, in most cases, unicellular microorganisms.
The bacteria is a unicellular and prokaryotic microorganism, which means that it does not have a nucleus, they are a few micrometers long and various shapes including spheres (cocci), rods (bacilli) and helices (spirils).
A diversity of unicellular microorganisms that make up the archaea kingdom lacking nuclei (prokaryotes) is known as archaea.
Their cells are surrounded by a covering (cell wall) made of various materials that give them high resistance against antibiotics or other harmful substances.
Therefore, we can conclude that bacteria and archaea are groups of organisms that are prokaryotic, which do not have a defined nucleus and or organelles surrounded by a membrane.
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What do cells have in common
Answer:
All cells have these four parts in common: a plasma membrane, cytoplasm, ribosomes, and DNA.
Explanation:
Answer:
All cells share four common components:
a plasma membrane, an outer covering that separates the cell’s interior from its surrounding environment
cytoplasm, consisting of a jelly-like region within the cell in which other cellular components are found
DNA, the genetic material of the cell
ribosomes, particles that synthesize proteins. However, prokaryotes differ from eukaryotic cells in several ways.
Many products and services were initially developed for space exploration. Which of these does NOT have a direct connection to space exploration? A. X-ray machine B. freeze-dried food C. infrared ear thermometer D. portable cordless vacuum
Answer:
freeze dried food is your answer
Answer: A x ray machine
Explanation:
there is no reason for an x ray machine for space exploration
Which is an example of a lipid?
(A) cholesterol
(B) glycerol
(C) glycogen
(D) fatty acid
Answer:
D: fatty acids is what a lipid is made up from.
Explanation:
An example of a lipid is cholesterol. It is made up of a hydrocarbon tail and a carboxyl group. The correct option is A.
What are lipids?Lipids are biomolecular substances that are made up of hydrocarbons and have a non-polar end and are non-soluble in water. They form the structure and function of living cells.
Cholesterol is a lipid, found in the blood, our body needs cholesterol to make and repairing of cells.
Thus, the correct option is (A) cholesterol regarding an example of a lipid.
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Neurotransmitters can be blocked which
disrupts the __ impulse from traveling
through the target neuron.
A. synthetic
B. electrical
C. somatic
D. chemical
Groups of ecosystems that have the same climate and dominant species
are known as *
1 pa
Populations
Habitats
Ecosystems
Biomes
Answer: 4)Biomes
Explanation:
Groups of ecosystems that have the same climate and dominant species
are known as biomes, e.g. tundra or rainforest biomes.
1. What relationship between accumulation and ablation is necessary for the ice front of a glacier to advance?
Answer:
As long as snow accumulation equals or is greater than melt and ablation, a glacier will remain in balance or even grow. Once winter snowfall decreases, or summer melt increases, the glacier will begin to retreat.
Explanation:
ATP contains a large amount of energy because _____.
Answer:
ATP contains a large amount of energy because it has high-energy phosphate bonds.
Explanation:
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