Answer:
D. Littoral, limnetic, profundal
Explanation:
The level of water bodies like ponds and lakes are divided into different zones from top to bottom and side to side. The Littoral zone starts from the dry land that moves in a downward direction towards the open water. There are lots of nutrients and minerals in this zone. Insects, small fish, and zooplankton live in this zone. The limnetic zone starts after the littoral zone ends. It is the part of the pond which receives the sunlight. Algae and other plants live in this zone because the level of oxygen is high in this area. The profundal zone is located where the sunlight does not reach. The population of fish is very low in this zone.
Answer:
Littoral, limnetic, profundal
Explanation:
uculating the Perimeter of a Triangle
GO
y
Triangle ABC is an isosceles triangle in which side
AB = AC. What is the perimeter of triangle ABC?
5
4
O 5+ 10 units
3
2
O 10 + 10 units
1
2
10/10 units
2.
3
- 5 4 -3 -2 -1
-1
4
5
O 50 units
B
-2
А
c
-5
Answer:
10 + √10
Explanation:
Assume your triangle is like the one below.
The coordinates of the vertices are
A = (-2,-4), B = (-2,-1) A = (-2,-4)
1. Calculate AC
AC = 3 - (-2) = 3 + 2 = 5
2. Calculate AB
AB = AC = 5
3. Calculate BC
We can use the Pythagorean theorem:
BC² = BD² + CD² = 3² + 1² = 9 + 1 = 10
BC = √10
4. Calculate the perimeter
p = AB + AC + BC = 5 + 5 + √10 = 10 + √10
Which structure is most likely used for hunting?
Answer:
A.claws
Explanation:
Which of the following is an
example of a density
independent factor?
A. The number of predators hunting in a
particular area
B. A drop in temperature
C. Food availability
D. Biotic potential
*MAKE SURE ITS ANSWERED CORRECTLY. * rainforests are destroyed so cash crops can be planted. What are cash crops? a.) plants that grow slowly and are sensitive to moisture b.) plants that are grazed by cattle c.) plants that grow quickly and have many uses
How does music affect plant growth? To answer this question, Dr. Anderson set up an experimental chamber and exposed a group of 15 bean plants to the same 60-minute rock CD twice a day, at 9:00 A.M. and 9:00 P.M. Another group of 15 bean plants was placed in a different chamber with the same temperature, light, and humidity, but these plants weren't exposed to music. One month later, the heights and masses of all 30 plants were measured and compared. In this example, what's the independent variable? Question 3 options: The light The use of music The temperature The time the experiment was conducted
Answer:
The use of music
Explanation:
The independent variable in the example is the use of music.
The independent variable in research or experiment is a variable whose value is not affected by any other variable. That is, the value of an independent variable is not influenced by any other variable.
In this case, the use of music stands alone and is not influenced by any other variable in the experiment. In actual fact, the use of music's effect is being tested in the experiment and hence, is not in itself influenced by any other variable.
Two cities have smokestacks on their plants. Which of the following weather conditions would you expect to create an increase in air pollution dispersal for one of the cities?
The city with a higher air pressure
The city with a higher humidity
The city with a lower wind speed
The city with a lower temperature
Answer:
The city with a higher air pressure
Will Mark Brainliest
Which of the following products were created through marine biotechnology?
Penicillin
Plasma television
Fluorescent dyes
Lithium batteries
Answer:
penicillin is the answer
The picture below represents an atom of the element nitrogen.
How many electrons are in this atom?
A. 13
B. 7
C. 6
D. 20
Answer:
7 electrons are there .hope it is right
Answer:
There are 7 atoms in nitrogen
Which is one climate that is characterized as having many trees?
- Dry
- Polar
- Highlands
- Tropical rainy
Use your calculated discharge results to estimate the probability of flooding, using the following procedure: 1. Use the Annual Exceedance Probability Chart below (also in the Chapter 16 Investigation in your textbook or on the worksheet that corresponds to this exercise). Find the position of your calculated discharge to fill the notch on the vertical axis of the plot. 2. Draw a horizontal line from that value to the right until you intersect the probability line. 3. From the point of intersection, draw a vertical line down to the horizontal axis of the plot, read off the corresponding probability of exceedance, and choose the best answer below. The probability to fill the notch is: Now determine the probability of flooding of the middle terrace, using the same approach as before. Remember you must use the total amount of discharge required to fill the notch and bottomland up to the level of the middle terrace. Choose the best answer below. The probability of flooding the middle terrace is:
Answer:
1) The probability to fill the notch is greater than 95%
2) The probability to fill the middle terrace is 5 to 25 percent
Explanation:
1) The calculated discharge, [tex]D_{ca}[/tex], to fill the notch is given by the relation;
[tex]D_{ca}[/tex] = Width × Depth × Velocity = 8 × 5 × 0.5 = 20 m³/s
From the Annual Exceedance Probability chart, the exceedance probability is greater than 95%, therefore, the probability to fill the notch is greater than 95%
2) The calculated discharge, [tex]D_{mt}[/tex], to fill the middle terrace is given by the relation;
[tex]D_{mt}[/tex] = Width of middle terrace × Depth of middle terrace × Velocity of middle terrace + [tex]D_{ca}[/tex] = 35 × 2 × 1.4 + 20 = 118 m³/s
From the Annual Exceedance Probability chart, the probability to fill the middle terrace is 5 to 25 percent.
What happens to water in the atmosphere as it rises? a. It evaporates. b. It condenses and forms clouds. c. It combines with other gases in the air. d. It is used up. Please select the best answer from the choices provided A B C D
Answer:
b. It condenses and forms clouds
Water in the atmosphere of the Earth evaporates into water vapor that rises into the sky and condenses to form a cloud that will dissipate with the wind, returning water to Earth, hence option B is correct.
How water condenses?Water travels everywhere over the Earth on a motorway in the sky called the atmosphere. Mist is created when a water molecule condenses on airborne particles.
It is typical in exhaled air in the cold, cold air over warmer water, and in a sauna's steam chamber. The process is the opposite of evaporation, in which liquid water turns into a vapor.
Therefore, as the air surrounding the atmosphere can cool, the water vapor reaches its dew point and condenses into liquid drops of water, hence option B is correct.
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Atoms have a _______
surrounded by _____
A. positive electron, negative nuclei
B. negative electron, positive nuclei
C. negative nucleus, positive electrons
D. positive nucleus, negative electrons
In a new trial to test the effectiveness for a new type of medicine, why is it necessary for one group to receive a placebo?
Answer:
To serve as control experiment.
Explanation:
Hope it helps.
Who would be the best people to study to help assess how genetics and the environment influence the expression of traits?
O identical twins that were adopted and raised by different families
O identical twins that were raised together by their mother and father
O a brother and sister that were adopted and raised by different families
O a brother and sister that were raised together by their mother and father
identical twins that were adopted and raised by different families
Explanation:
Identical twins that were adopted and raised by different families depicts how genetics and the environment influence the expression of traits.
What is Genetics?This is defined as the study of genes, variation and heredity in organisms and is influenced by factors such as genes, environment etc.
The identical twins have almost similar genetic composition and different environment as a result of them being adopted by different families.
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which molecule loses electrons during cellular respiration?
Answer:
glucose
Explanation:
Two species of fish had recently undergone sympatric speciation. The males of each species had a different coloring through which females could identify and choose a partner from her own species. After some time, pollution made the lake so cloudy it was hard for females to distinguish colors. What might take place in this situation?
Answer:..............
Explanation:
Why is the black hole asymmetric?
Answer:
black hole is so strong that, in order to escape it, an object would have to be moving faster than the speed of light, a feat that almost all physicists agree is impossible.
Explanation:
did that helped that is all i know! haha!
- Hope
Answer:
black hole is so strong that, in order to escape it, an object would have to be moving faster than the speed of light, a feat that almost all physicists agree is impossible.
A silver mine recently opened along the foothills of a mountain. The mine's primary method for extracting silver from the surrounding rock is heap leaching. Which of the following hazards does this process most likely pose to the environment?
I. Atmosphere contaminated with heavy metals
II. Soil contaminated with cyanide
III. Surface water contaminated with sediment
Answers:
I only
II only
III only
I and II only
Soil contaminated with cyanides is the hazard which is the most likely pose to the environment. Thus, the correct option is B.
What is Cyanide contamination?Silver mining is the extraction of silver metal from minerals, starting with mining. Because of this silver, which is often found in the intimate combination with other metals, its extraction requires more elaborate and complex technologies.
Cyanide in the landfills can contaminate the underground water. Hydrogen cyanide, sodium cyanide, and potassium cyanide are the major forms of cyanide which are most likely to be found in the environment as a result of industrial activities. Hydrogen cyanide is a colorless gas with a faint, bitter, almond-like odor. Concentrated acids and cyanides are used to dissolve metals from the rock which are picked up in rainwater.
Therefore, the correct option is B.
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All wetlands are considered freshwater ecosystem
Answer:
Marshes, swamps, and bogs are all considered wetlands. ... Wetlands are not considered freshwater ecosystems as there are some, such as salt marshes, that have high salt concentrations—these support different species of animals, such as shrimp, shellfish, and various grasses.
Explanation:
i hope this helps you!
Answer:
It will be false
Explanation:
Took on edg
humans and plants have the same type of cells?
Answer:
No.
Explanation:
Humans have animal cells and plants have plant cells.
Human cells have centrioles, while plants have chloroplast.
Hope this helps!
In the diagram, the feature labelled C is only found in plant cells. What is it called?
Answer:
Should be the Chloroplast
Explanation:
Since its green and only plants have it, the way they produce energy is using Chloroplasts..
In the diagram, The cell organelle labeled as c is the chloroplast
The plant cell contains structures that are cell walls, chloroplast, vacuoles that are absent in an animal cell.
Reason:
cell wall present on the outside of the plasma membrane labeled as Evacuoles are the single but largest cellular structure in the plant cell and are present in the center.Chloroplasts:
The chloroplast is an organelle found in plants and other photosynthetic organisms.The chloroplast contains chlorophyll that gives the plant its green color.Chloroplasts capture light energy to conserve free energy in the form of ATP and reduce NADP to NADPH through photosynthesis.The chloroplasts also have a double outer membrane. chloroplasts are minute flattened granules.Thus, In the diagram, The cell organelle labeled as c is the chloroplast
*PLEASE ANSWER AS SOON AS POSSIBLE. TY* Deforestation is a problem because it decreases biodiversity. Why does this happen? a.) planting of crops b.) protection of resources c.) cooling of climate d.) destruction of habitats
Answer:
D
Explanation:
Deforestation is when forests and trees are destroyed to create space for farming and buildings or collect wood.
Many different animals live in the forests, such as birds, squirrels, bears, deer and more. This means the forest is their habitat. If the forest is destroyed, then their habitats will be destructed. This leaves some animals without shelter and some without food. Therefore, the animals may die and biodiversity will decrease.
Therefore, the best answer is D. Destruction of habitats.
Sequence the steps, 1–4, in the order required to create a permanent slide of human cheek cells. [1 mark] Specimen dehydrated Specimen embedded in wax Specimen cut into thin 'sections' Staining
Answer:
The correct order is dehydration, embed in wax, cut into sections, staining
Explanation:
There are certain proceedings needed to obtain stained sections of vegetable or animal tissues for their microscope observations.
These steps are:
Obtention of the material: The tissue is cut to an adequate size.Fixation: When tissues are extracted from the organism, they suffer autolysis and putrefaction, so they need to be fixated in order to keep their cells in the best state possible. Fixation involves preserving the original morphological and molecular characteristics of the tissue. Fixation avoids autolysis, putrefaction, distortion, and retraction of cells and the tissue that could affect its volume or morphology. Dehydration. Once fixated, the fixator must be eliminated and the tissue is dehydrated by using a gradual series of solutions with alcohol in ascendant concentrations. Dehydration must be gradual to avoid tissue deformation. Inclusion. To obtain thin cuts that can be observed under the optic microscope, the tissues must be included in a consistent, firm substance, that might be either hydrophilic or hydrophobic. A hydrophobic medium is paraffin wax, that provides hardness and plasticity. Cut. The tissue included in wax must be cut in slides or sections thin enough to allow the diffusion and penetration of light. A microtome is used to perform these cuts. When using paraffine for tissue inclusion, the cuts are about 5 to 20 micrometers of thickness. Stain. Once the cuts are performed, paraffin wax must be eliminated. This can be done by using an organic solvent. Then the tissue must be stained. Hematoxylin and Eosin are the most common dyes. Animal tissues in general do not have any natural color, so they need to be stained to be observed.What should be changed to make the following sentence true? "States of
consciousness do not vary over the course of the day."
A) The word "day" should be changed to the word "year."
B) The word "day" should be changed to the word "week."
c) Remove the phrase "do not."
D) The word "vary" should be changed to the word "differ."
In the sentence "States of consciousness do not vary over the course of the day" remove the phrase "do not" is the change that should be made in the sentence. Thus, option C is correct.
What is the state of consciousness?The extent at which we are aware of our thoughts, perceptions and surroundings is the level of consciousness. It is the level of awareness of both internal processes and external surroundings is known as a state of consciousness.
Humanism is a psychology current that studies human behavior and development. In humanism, it is believed that all people are born without a real judgment and that every belief, knowledge, idea, and learning is created. So basically we are born with cero evilness and we have everything to grow and be good.
Therefore, In the sentence "States of consciousness do not vary over the course of the day" remove the phrase "do not" is the change that should be made in the sentence. Thus, option C is correct.
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What does the length of a vector arrow represent?
O A. magnitude
ОО
O B. angle
O c. force
O D. direction
Answer:
Bottom line is "the length of a vector arrow is a scalar quantity representing how long (or short) the arrow is .
Explanation:
The length of a vector is also know as the magnitude. The magnitude determines how quickly something is moving through space whereas the direction tells you where the vector is going. hope this helps you :)
Answer:
A. magnitude
Explanation:
Magnitude is just another word for "size/length." You will typically see vectors often appear in physics and levels of math starting from pre-calc.
someone please calculate the ratio of offspring please help pleaseeeeeeeeeeeeeeee
Answer:
2. 1 Pink : 1 white
3. 1 Red : 1 Pink
4. 1 Red : 2 Pink : 1 White
Explanation:
This question involves a single gene coding for flower colour in snapdragon plants. The alleles of the gene exhibits incomplete dominance i.e. the red allele (R) ia not completely dominant over the white allele (W), hence an intermediate pink phenotype (RW) is formed. Based on this, a red snapdragon will have genotype, CRCR while a white one will have genotype, CWCW. The intermediate pink phenotype will have a genotype, CRCW.
The image attached to this question shows four crosses between different traits.
In the second cross between a pink (CRCW) and white offspring (CWCW), 2pink and 2white offsprings will be possibly produced in the ratio 1:1.
In the third cross between a red (CRCR) and pink (CRCW) snapdragon, 2 red and 2 Pink offsprings will possibly be produced in a ratio 1:1.
In the fourth cross between a pink (CRCW) and pink (CRCW) snapdragon, red, pink and white offsprings will be produced in the ratio 1:2:1.
See attached image for the complete punnet square. Note that, there was a mistake in the Genotype of the last cross i.e. pink has genotype CRCW not CWCW.
Which statement best describes the difference between vascular plants and
nonvascular plants?
O A. Vascular plants reproduce with seeds, and nonvascular plants do
not.
O B. Vascular plants reproduce with spores, and nonvascular plants do
not.
C. Vascular plants have vessels, and nonvascular plants do not.
O D. Vascular plants have flowers, and nonvascular plants do not.
SUBMIT
The correct option is A. Vascular plants reproduce with seeds, and nonvascular plants do not.
The following information should be considered:
A vascular plant contains vascular vessels to carry water and food to all the different parts of the plant. While on the other hand, Nonvascular plants are most commonly found in moist environments, which assured they get sufficient water without relying on roots.
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how did the modern atomic theory develop?
Which statement describe a pattern shown in the data?
The data from trial 3 are inconsistent with the dat as from trials 1 and 2
what is the Mid-Atlantic Rift