The correct option is D) Stonerollers are sometimes referred to as creek cows because of their behavior of grazing on algae that helps to transfer large amounts of energy through a food chain.
Stonerollers grazing on algae is a behavior that benefits the ecosystem by controlling algae growth and facilitating energy transfer through the food chain. However, this behavior is not directly related to increasing the survival rate of their young. It is an ecological service rather than a reproductive strategy.
The other incorrect options are
A) The male and female shiners swimming along the crevice of large rocks and depositing eggs and sperm in the crevice is a behavioral adaptation to protect their eggs from predators by hiding them in a secure location.
B) Male and female catfish exhibiting parental care, which includes nest site preparation, fanning of the eggs with their fins, and guarding of the eggs and larvae, is a direct behavioral adaptation to increase the survival rate of their offspring by providing a safe environment and oxygenation for the developing eggs.
C) The male bluehead chub constructing a gravel mound for spawning, which is also used by other minnow species, is a behavioral adaptation that provides a structured environment for the eggs to develop, potentially offering protection and optimal conditions for hatching.
what are the two major types of cells found on earth
Why do scientists study index fossils?
Final answer:
Index fossils are crucial for determining the geological age of rock layers and are used by paleontologists for biostratigraphic correlation and understanding evolutionary history.
Explanation:
Scientists study index fossils because they are indicative of specific intervals in geologic time. These fossils, because of their widespread distribution and short lived existence in the geological record, provide key information about the age of the rock layers in which they are found. For instance, Belemnites are cephalopods that lived during the Mesozoic era, and finding a Belemnite fossil can immediately suggest that the surrounding rocks are from the same era. Furthermore, the study of index fossils aids in the field of biostratigraphy, which allows paleontologists to correlate rock layers from different locations and understand the evolution of life through geologic time.
I WILL GIVE 20 POINTS!!! Multicellular organisms have five levels of organization ranging from simplest to most complex. The simplest level is the cellular level. You are the most complex level: you are an organism. List the five levels of organization, from simplest to most complex. Describe each level with one or two sentences. Give an example at each level.
what is the volume of a locker that is 30 cm long, 40 cm wide, and 200 cm high
The volume of the locker: is 240,000 cubic centimeters.
Given the following data:
Length of locker = 30 cmWidth of locker = 40 cmHeight of locker = 200 cmTo find the volume of the locker:
Mathematically, the volume of a locker is given by the formula;
[tex]Volume = length[/tex] × [tex]width[/tex] × [tex]height[/tex]
Substituting the given parameters into the formula, we have;
[tex]Volume = 30[/tex] × [tex]40[/tex] × [tex]200[/tex]
Volume of locker = 240,000 cubic centimeters.
Therefore, the volume of the locker: is 240,000 cubic centimeters.
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determine why cycles in the biosphere are called biogeochemical cycles
In ecology and Earth science, a biogeochemical cycle or substance turnover or cycling of substances is a pathway by which a chemical substance moves through biotic (biosphere) and abiotic (lithosphere, atmosphere, and hydrosphere) compartments of Earth.
They are called biogeochemical cycles because chemical substances are cycled through the geosphere and these cycles often involve living organisms.
Matter moves round the ecosystem in certain cycles. The cycles in nature are; water cycle, nitrogen cycle, oxygen cycle, phosphorus cycle, carbon cycle, etc.
Many of these cycles involves living organisms. The substances that are being cycled are chemical substances and the geosphere is involved in all these cycles.
As a result of all these, the cycles in nature are called biogeochemical cycles.
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Which of these units would be MOST useful for describing the speed of someone riding a bicycle?
A. cm/h
B. km/h
C. mm/s
D. cm/min
Populations of host organisms are most likely parasitized when _____.
A. they are overcrowded
B. they cannot escape
C. they are diseased
D. they have little to eat
Answer: A. they are overcrowded
A limiting factor is the factor which affects the growth, abundance and distribution of population of species in the living environment. It is of two types: density dependent factor and density independent factor. The density dependent limiting factor results in the change of the per capita population of the living species, with the increase in the density of the population of species. Density independent limiting factor affects per capita population of the living species, irrespective of the density of the population.
Parasitism is a phenomena in which one organism feeds over the body of other to meet it's food, energy requirements and to grow in numbers. Parasitism is a density dependent limiting factor because more denser the population more profound will be the effect of parasitism. As, parasites will get more number of hosts to acquire their food, and the infection will be transferred easily among large number of individuals in the population.
Hence, overcrowded population of host organisms is most likely to be parasitized.
(02.04 HC)As the climate changes, the average ocean temperature is rising. Using this information, predict what will most likely happen to El Niño events in the future.
El Niño events will intensify because they rely on warmer water sinking to the seafloor.
El Niño events will intensify because they will build on the already warm waters at the equator.
Some El Niño events will be stronger, but most will be weaker because the ocean currents are unpredictable.
El Niño events will become more similar to La Niña events and establish a new weather pattern.
Answer:
El Niño events will intensify because they will build on the already warm waters at the equator. Because the storms that drench the South, Central, and North America form fro, the equator and el niño's warm surface water. But leave the other coutries neglected and waterless.
Surface water, not water that travels to shallower depths.
ways to organize data
The alleles for a given trait seperate during meiosis is known as
Answer:
Mendels' first law. The Law of Segregation states that the two alleles of a given gene will be separate from one another during gamete formation (meiosis). law of independent assortment. the law that states that genes separate independently of one another in meiosis when forming gametes. dominant allele.
Explanation:
What is an example of the negative effect of fossil fuels?
Fossil fuels cannot be used to heat homes
Fossil fuels have no negative effects
Fossil fuels cannot be used by everyone in the world.
Fossil fuels produce air pollution
Final answer:
Fossil fuels contribute to air pollution and global warming, detrimental to both human health and the environment. They also present risks during extraction and transportation, often leading to environmental disasters. Societal reliance on fossil fuels poses economic vulnerabilities and a lack of preparedness for a future with finite resources.
Explanation:
An example of the negative effect of fossil fuels is that their combustion leads to air pollution. The use of fossil fuels releases various pollutants that contribute to respiratory and cardiovascular problems in humans. Moreover, ecosystems are adversely affected worldwide, causing issues like acid rain, ozone depletion, and, significantly, global warming due to the greenhouse effect from increased levels of carbon dioxide. The climate change that results is driven by CO2 emissions, an unavoidable byproduct of burning fossil fuels. Additionally, the extraction of fossil fuels can be harmful to the environment, causing habitat destruction and water contamination, including significant incidents like the Deepwater Horizon oil spill.
On a societal scale, reliance on fossil fuels creates a vulnerability for economies, especially for countries without their own reserves or when faced with the prospect of depleting resources. Furthermore, the dependence on fossil fuels has led to a lack of planning for a post-fossil world, leaving us unprepared for a future where these resources are no longer available or affordable.
Which of the following is a solution? A. ocean water B. sand in water C. oil in water D. all of these
Answer:
the correct answer is a , OCEAN WATER !
Explanation:
soultions :-
mixture(homogenous) of two or more substances.components :-
solvent solutetype of soultions
saturated unsaturated supersaturatedexamples of soultion
salt in wateryou take a summer vacation by the ocean in P.E.I. You love the ocean plants you see and decide to bring some home for your fish tank. After a week or two, you notice your plants are not thriving in your freshwater tank.
From your knowledge about the distribution of electrons in the levels and from the atomic number (in parentheses), indicate the most likely charge on the ion when this atom forms an ion. (Remember the 2, 8, 18 level distribution.)
Hydrogen (1)
0
-1
+1
-2
+2
The Answer is C.+1
Cause i said +2 and i got it wrong and this is the right answer
when a non native species is imported into a new ecosystem the population sometimes runs wild. explain why this might be the case
Well, there are a few explanations to this questions that could be right, but let's go to the obvious one.
What can happen sometimes is that, when a new species is imported into a new ecosystem, it can cause some problems. For example, a plant is imported from Japan to Brazil and it is planted in the soil of a forest. This plant can either adapt to the environment or die because it's missing nutrients from Japanese soil. If this plant adapts, it can happen to in a way that this plant will take place of plants that usually were growing right there, taking their resources to grow up more and more, spreading fastly too. That is a process that can happen, it's a possibility, but, there's a very big chance of this happening in reality.
We can either mention the example of an animal, it's easier to understand, if we put a new animal into a new environment, it can go wild because this animal can start eating other animals, and that can cause a serious problem for their population, since it's going to start growing faster and faster, and once this happens, it'll will reach a limit line, and that line is the line of competition for food.
All of the following are true facts about enzymes EXCEPT
A)all living cells have enzymes.B)life would not be possible without enzymes.C)enzymes can speed chemical reactions by 100s to billions of times.D)there are a few types of enzymes, but they each perform many types of reactions.
Which protein serves as a chemical messenger
Explain what would happen if plankton were removed from the marine food webs.
Draw Conclusions Why is it important for a doctor to ask a patient questions in addition to doing a physical exam
all eukaryotic cells have mitochondria but only plants and some photosynthesis process of chloroplast? what can be inferred?
How long does it usually take for a rock to undergo a stage within the rock cycle?
A. a few days
B. about one thousand years
C. from 300 to 400 years
D. thousands to millions of years
The stages in the formation of a rock are a factor of very long time period due to the chemical processes involved. Hence, a stage within a rock cycle usually takes thousands to millions of years.
The rock cycle describes the series of processes which rocks undergo during their formation into igneous, sedimentary and metamorphic rocks.
While igneous rocks are formed from the cooling and solidification of magma, sedimentary and metamorphic processes involves the burial or diagnesis of rocks over several thousands to millions of years under heat and and pressure.
Then buried sediments starts to compact as accumulation of sediments continues over Millions of years in continous procession.
Therefore, undergoing a stage within a rock cycle usually takes thousands to millions of years.
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A student hypothesizes that a goldfish will be more active in a bowl that has red gravel than in a bowl of grey gravel. To get this hypothesis, the student places one goldfish in a bowl with red gravel and another goldfish in a bowl with grey gravel. The color of the gravel is the ______
Variable in the experiment.
Answer:
The correct answer will be- independent variable.
Explanation:
A scientific experimental design must include three types of variables which are independent variable (which can be manipulated), dependent variable ( which has to be tested and depending on the independent variable) and constant variable (which is kept constant).
In the given question, since the student wants to study the difference in the activeness of the goldfish in red and grey gravels, therefore, he performed the experiment with different gravels.
In this experiment, the independent variable is the color of the gravel as it can be changed as well as the dependent variable depends on this variable.
Thus, the independent variable is the correct answer.
A researcher is collecting qualitative data pertaining to social behaviors of deer at different times of the day. How will she most likely need to organize this data?
Answer:
data table
Explanation:
The researcher who is observing the social behaviour of a deer through out the day and is collecting the qualitative data and analyzing the social behaviour of the deer at different times of the day can be collected and stored in a data table which will be easiest and the most prominent way to analyze a data. Data table is useful to store more complex data. It is more popularly used in research, data analysis or communications.
How many orbital blocks are represented in the periodic table?
Answer:
4
Explanation:
edge 2021
Ovarian follicles cells produce estrogen, which is a steroid. What organelle will be present in abundance so that the follicles cells might perform this function
The steroids are produced by the Smooth endoplasmic reticulum.
The cells, which are involved in the secretion of the steroid molecules have an abundant number of the smooth endoplasmic reticulum, which is abbrevated as SER.
The cells present in the ovary and the testis have a large number of smooth endoplasmic reticulum. The abundant number of smoothe endoplasmic reticulum allow them to produce a large amount of steroid molecule to produce the steroid hormones estrogen and testosterone.
Hence, in this case, the ovarian cells would have a large number of SER.
What is a dark area on the surface of the sun that is cooler than the surrounding areas
If the same index fossils are found in two separate rock layers, the two rock layers most likely
Answer:
The answer is C. Were formed at the same time.
Explanation:
what happens when an enzyme's structure as it exceeds the typical human body temperature
Answer: the enzyme molecules gain kinetic energy, intermolecular bonds are broken, and eventually the enzyme structure itself breaks down
Explanation: [look at the picture]
how much of a cell’s life is taken up by MITOSIS based on your data? 100=(16/36)*100
The total number of mitotic divisions in the formation of 64 daughter cells is A. 6. Therefore, A. 6 is correct .
To find the total number of mitotic divisions required to form 64 daughter cells, we need to consider the process of mitosis, which involves a single parent cell dividing into two daughter cells.
Each round of mitosis doubles the number of cells.
Starting with one parent cell, after the first round of mitosis, there will be 2 daughter cells.
After the second round, there will be 4 daughter cells. After the third round, there will be 8 daughter cells. This pattern continues, doubling with each round of mitosis:
1st round: 2 cells
2nd round: 4 cells
3rd round: 8 cells
4th round: 16 cells
5th round: 32 cells
6th round: 64 cells
So, it takes 6 rounds of mitotic divisions to produce 64 daughter cells.
Therefore, the correct answer is A. 6.
Each division in mitosis produces two daughter cells, so with each division, the number of cells doubles.
The number of divisions required to reach a certain number of cells can be found by determining how many times the initial number must be doubled to reach the desired number.
In this case, to go from 1 cell to 64 cells, the initial number (1 cell) must be doubled 6 times (2^6 = 64). Thus, there are 6 mitotic divisions.
Question
What will be the total number of mitotic divisions in the formation of 64 daughter cells?
A. 6
B. 32
C. 63
D. 16
what is the meaning of cell