Answer:
D
Explanation:
fleas feed on blood
bacteria eat decomposing flesh
hawks feed on rodents
Answer:
D) Deer
Explanation:
They eat plants
What important function do stream pools serve?
a. Stream pools serve as a habitat for juvenile fish.
b. Stream pools serve as a habitat for organisms that have difficulty in feeding or navigating
swifter areas of the stream.
c. They have greater depth and lower velocity than other parts of the stream, thus allowing a
habitat for organisms during dryer seasons.
d. All of the above
Answer:
D. All the above
Explanation:
The important function of stream pool are;
Stream pools serve as a habitat for juvenile fish.Stream pools serve as a habitat for organisms that have difficulty in feeding or navigatingswifter areas of the stream.
They have greater depth and lower velocity than other parts of the stream, thus allowing ahabitat for organisms during dryer seasons
What is stream pool?Stream pool refers to an extension or stretch of a river or stream in which the water goes deep and the depth is above average of other water source and the water velocity is also.below average.
Stream pool is formed from beddings of sediments or can be armoured with gravel.
Therefore, the important of stream pool are;
Stream pools serve as a habitat for juvenile fish.Stream pools serve as a habitat for organisms that have difficulty in feeding or navigatingswifter areas of the stream.
They have greater depth and lower velocity than other parts of the stream, thus allowing ahabitat for organisms during dryer seasons
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In which of the following biomes is annual precipitation lowest?a. tundrab. taigac. grasslandd. temperate deciduous foreste. tropical rain forest
Answer: Option A.
Tundra
Explanation:
Tundra biome have the lowest annual precipitation because it is the coldest of all the biomes and it is plain without trees and have frost molded land scape. It have low or poor nutrients which do not support plants growth, low temperature or have the lowest temperature, little precipitation and short growing seasons.
It's annual precipitation is less than 25 centimeter annually and they are also considered as desert, after the short growing seasons, it is followed by harsh conditions which the plants and animals present there posses a special type of adaptation for survival in the area. They are found in high altitude landmass such as Canada, Russia, Alaska e.t.c.
What is a well-known issue with cross-sectional methodology?
Answer:
This methodology enables to measure simultaneously both the result and exposure in the group under study
Explanation:
A cross-sectional method is a type of scientific design based on observational data. The cross-sectional studies involve the use of diverse groups that differ in the variable investigated but share other features (for example, individuals with the same educational background, ethnicity, economic status, etc). This class of studies is generally used in developmental psychology.
Can You Explain it?
Using your textbook page 5 read the context and predict how do you think tomato plants detect pests on a neighboring plant so
they can protect themselves from infestation? Write your prediction in the box below and in your Evidence Notebook.
Explanation:
Here is my answer from the textbook :)
Answer:
I know that some plants release certain chemicals, taste terrible to pests like the caterpillar, and alert other plants that there are pests around. As a result of this, when other plants detect the chemical released, they work together towards a solution.
If I put 1 mole of substance A and 2 moles of substance B into 1 liter of water, which
of the following best describes what I have made?
Answer:
molar masses
Explanation:
Examine the label information on the packages of a variety of breakfast cereals. Which types of cereals provide the best sources of carbohydrates, lipids, proteins, vitamins, and minerals? Which major nutrients are lacking in these cereals?
Answer:
B
Explanation:
B
A mutation occurs, and cytosine is replaced with adenine. What impact do you think this will have on the DNA structure?
Adenine is larger than Cytosine base pair which make it unable to base pair properly with the guanine on the opposing strand. This will cause the DNA to bulge.
What is Mutation?Mutation refers to a sudden change. It is a change in the nucleic acid sequence of an organism's genome. This results in changes to the cell's DNA sequence that can be caused by mistakes during cell division, or by exposure to DNA-damaging agents in the environment.
There are two major types of mutations which are:-
1. Germline mutations
This type of mutation occur in gametes
2. Somatic mutations
This type of mutation occur in other cells of the body.
There are also some types of mutations that are found. They are
1. Base substitutions
2. Deletions
3. Insertions.
Thus, Adenine is larger than Cytosine base pair which make it unable to base pair properly with the guanine on the opposing strand. This will cause the DNA to bulge.
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Which agreement led to the reduced release of chemicals that harm the ozone layer?
Answer:
The Montreal Protocol
The Montreal Protocol, finalized in 1987, is a global agreement to protect the stratospheric ozone layer by phasing out the production and consumption of ozone-depleting substances (ODS).
In a fluorescence recovery after photobleaching (FRAP) experiment, a fluorescently tagged membrane protein, A, shows very little recovery of fluorescence ten minutes after photobleaching, while membrane protein B shows a rapid increase in fluorescence after bleaching, recovering nearly 80% of its original fluorescent signal by ten minutes. Based on this information, which of the following statements can be made?
A. Proteins A and B interact with each other in a complex
B. Protein A is easily denatured,
C. Protein Bis diffusing in a more fluid membrane.
D. Protein Ahas faster mobility in the membrane.
Answer:
The correct answer is option C. Protein Bis diffusing in a more fluid membrane.
Explanation:
Fluorescence recovery after photobleaching or FRAP is a technique used to examine the portability of fluorescent particles with the help of fluorescence microscopy that have been utilized since the mid-70s to evaluate the dispersion or movements of molecules in the cell membranes of the cell.
Fluorescence Recovery After Photobleaching (FRAP) is a strategy for deciding the energy of dispersion in living cells (typically) utilizing fluorescence microscopy.
In the given experiment:
The diffusion coefficient of GFP vary, based on the localization of the protein
Protein B is freely diffusing, due to which recovery is very high compared to protein A.
Protein which is less diffusing shows a slower and less rate of recovery.
Newtons third law is sometimes called??? Help
Answer:
equal and opposite are called Newtown third law
Which event might occur if the populations of producers in an ecosystem became unstable? A) The direction of energy in the food web would change directions and flow toward the producers. B) Decomposers would become the primary energy source. C) The number of primary consumers would decrease dramatically. D) The energy flow into the food web would decrease or increase along with changing populations of producers. THANK YOU !!! :-)
Answer:
If the populationsl of producers in an ecosystem became unstable the energy flow into the food web would decrease or increase along with changing populations of producers.
Answer:
Answer: option D.
Explanation:
Hey, there!
Reason: The reason is, when the number of producers are unstable, the flow to enegry from abiotic components to biotic components will be destructed. There will not be proper flow of enegry in whole ecosystem, which usally changes the flow of enegry as per the number of producers.
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Look at the graphic in the section "What Are the Steps In The Scientific Method?"
According to the article, what is represented by the step called "Hypothesis"?
Answer:
Brief description of the Orginal experiment state what was done
Explanation:
What did you change?
How did the changes help answer the question
use an outline to explain
anaerobic respiration
Answer:
Anaerobic respiration is used commercially in the production of beer, wine, bread, yogurt, and cheese.
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As the adrenal gland releases glucocorticoids, which of the following effects may be observed? a) Increased blood levels of amino acids
b) Decreased blood pressure and volume
c) Decrease in immune system function
d) Lipid breakdown in the liver will increase
e) Increased water absorption in the kidney
f) Increased blood glucose levels
Answer:
The correct option is F) Increased blood glucose levels
Explanation:
The release of glucocorticoids into the body is part of the body's chemical process for managing stress and ultimately prepares the body for fight or flight.
The body anticipates that it may consume additional fuel/energy during elevated stress levels, it therefore through the adrenal cortex which is situated above the kidneys, sends glucocorticoids into the body.
The glucocorticoids trigger the body's metabolism with regard to breaking down stored fuel in order to produce the required energy that it needs.
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22.Which among the following is not the mode of excretion in plants?
(1 Point)
Diffusion
Stores the waste in dead permanent tissue
Nephridia
Answer:
Nephridia
Explanation:
diffusion helps liquid and gas in to speed up the rate of higher concentration to the region of lower concentration...
Tessa conducted a demonstration about the movement of materials in and out of cells. She closed the door to her classroom, then sprayed a little perfume in the corner of the room. She drew this diagram to represent the room, with the dots representing the perfume molecules. Which statement best describes what Tessa should tell the class about the diagram? Diffusion has already occurred. Diffusion will occur. Active transport has already occurred. Active transport will occur.
Answer:
Diffusion has already occurred.
Explanation:
Answer:
diffusion has already occured
Explanation:
i took the ed test
What is the relationship between combustion and plants? (Using the picture)
HELP ILL MARK YOU BRAINLIEST
why is still water an ideal enviroment for mold and cast fossils
Answer:
Sediment builds up over organisms.
Explanation:
Answer:
Sediment builds up over organisms.
Explanation:
i got it correct on edge nuity
Nitric acid is a chemical that is used in the production of fertilizers. The chemical formula of nitric acid is
HNO3
Which of the following are true for a nitric acid molecule?
Select all that apply.
A. It has three atoms.
B. It has three different types C. of atoms.
D. It has three oxygen atoms.
Answer:
D is the right answer
Explanation:
Answer:
It has three atoms.
It has three oxygen atoms.
Explanation: I just took the test :D
Which cube has a higher surface-area-to-volume ratio?
Answer:
bottom right ....................
Answer:
4 cm x 4 cm x 4 cm..... .
Explanation:
...
5. Could Trypsin work in the stomach?
Why do you think that?
What organ system maintains blood oxygen and carbon dioxide levels?
Answer respiration system
Explanation:
cause
g What are the three basic assumptions of Darwinian evolution? Group of answer choices Presence of phenotypic variation, some phenotypic variation due to genetic variation, the given trait has an impact on fitness Presence of phenotypic variation, environmental variation, the given trait has no impact on fitness Presence of phenotypic variation, environmental heritability, the given trait has an impact on fitness Presence of phenotypic variation, trait present in only the mitochondrial DNA, the given trait has an impact on fitness
Answer:
1- Presence of phenotypic variation
2- some phenotypic variation due to genetic variation
3- the given trait has an impact on fitness
Explanation:
The evolutionary theory by natural selection proposed by Darwin in his publication “On the origin of species” (1859) is based on a series of assumptions that enable to understand the amazing biodiversity on the Earth. First, individuals are not identical among them, i.e., there exists variation in the traits among the members of a given population, species, etc. Second, phenotypic variation leads to differential survival and reproduction of the organisms that are best fitted to the environment (i.e., competence among the members of the population). Finally, phenotypic traits are passed from generation to generation (i.e., phenotypic variation is inheritable), thereby favoring offspring from parents more adapted to the environment.
How does the injection of insulin affect the signal transduction pathway of type 1 diabetics?
a. Injected insulin prevents the glucose from binding to cellular protein receptor.
b. Insulin acts as a secondary messenger that cascades the message to allow glucose into the cell.
c. Insulin is absorbed into the cytoplasm and binds with the transcription factor to make it active.
d. Protein receptors on the cell bond to the insulin, which allows glucose to enter the cell.
Answer:
The correct answer is D.
Explanation:
To act on target cells, insulin binds to a specialized protein that is located on the membrane of your target cells: the insulin receptor. When insulin binds to the receptor, it activates a cascade of signals within the cell (a process called signal transduction), which is essential for insulin to have an effect on its target tissues. Insulin increases the entry of glucose into cells and causes the number of certain proteins specialized in glucose transport to increase in the membrane of their target cells, such as adipocytes (adipose tissue cells) and skeletal muscle cells.
Answer:
The correct answer is B, b. Insulin acts as a secondary messenger that cascades the message to allow glucose into the cell.
What is meant by the scientific term "blob”?
Meter is called a standard unit.Give reason.
Answer:
The meter is not called a fundamental unit, except informally by some people. In the International System of units (SI), the meter is one of seven base units. Base units can be defined in terms that do not depend on no units beyond other base units or natural constants (e.g., the speed of light). Using no more than those seven base units, other units can be defined and those are called derived units. No factors or coefficients other than one are used to show how they relate to each other
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An experiment was performed to measure the growth of bacterial colonies on an agar plate over a 48- hour period. Which type of graph or chart would be most suitable to represent the data. PLEASE HELP! THE ANSWER CHOICES ARE A: Pie chart B: Bar graph C: Stacked bar graph D: Line graph! This is 8th-grade science help:C
Answer:
D. Line graph
Explanation:
A line graph is used to track changes over short or long periods of time
the other options don’t make sense other than the bar graph but you are not comparing anything and it just makes more sense to use a line graph.
Why must seafood be consumed with caution?
Seafood must be consumed with caution because some fish live in polluted water and _____ A. some people are allergic B, some people are unfamiliar with fish C. some people dislike fish
Answer:
first blank: some fish live in polluted water
Second blank: some people are allergic to fish
Explanation:
Plato answer
for edmentum
The relative concentration of each in the plasma membrane is partly regulated by the:_______
Answer:
ion channels
Explanation:
The plasma membrane plays a critical role in regulating and maintaining ionic potential inside the cell, relative to ionic concentration present outside the cell. The ion channels are specific, in that they only recognize and allow particular ions to pass through and block the rest. Their opening and closing depends on the ionic potential during that time period.
1What do we call an environment free of bacteria?
sterlle
clean
empty
Infected
Answer:
sterile
Explanation:
sterile means free from micro-organisms