Answer:
flagellum
Explanation:
Flagellum enable some protist to move
Write the common food chain of a pond ecosystem.
Explanation:
In a freshwater aquatic ecosystem like a pond, the organisms in the food chain include algae, small animals, insects and their larvae, small fish, big fish and a fish-eating bird or animal
pls mark brainliest
Answer:
Thanks for the points <3!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
Explanation:
tkhthy
During an experiment to determine if people with more symmetrical body features have a lower incidence of disease, a researcher first measures the length of several bones in the subject's hands and arms. The device used to measure length does not display a readout of the measurement taken. Instead, a wire connects the measuring device to a computer that records the data. The computer monitor is kept out of sight of the subject and the researcher. Why is such an elaborate device used?a. So that the subject will not know if he or she is part of the control group.b. So that the experiment will be repeatable.c. So that the subject will not be injured by the experiment.d. So that the identity of the subject will remain anonymous.e. So that the measurements are not biased by the researcher.
Answer:
e
Explanation:
The main reason such an elaborate device was used would be to eliminate any element of bias by the researcher.
It is important to eliminate biases when taking measurements so as to ensure the accuracy of the data and the overall outcome of the experiment. If a simpler device had been used in which the researcher manually records the length of the bones, it is possible to knowingly or unknowingly introduce biases or random error into the experiment which will impact the integrity of the data and the outcome of the experiment.
The correct option is e.
What is the role of adenosine triphosphate (ATP) within a cell?
A) Release carbon dioxide
B) Biological molecule that stores energy
C) Use glucose
D) Controls chemical reactions
Answer:
Its B. Biological molecule that stores energy
When you mix salt with water in a beaker, the salt is no longer visible. What
happens to the salt?
A. The salt changes state from a liquid to a gas.
B. The salt reacts with the water to make a new substance.
C. The salt dissolves in the water.
D. The salt is destroyed by the water.
please help, i’ll mark brainliest if you get it right! please please only answer if you know the answer though, don’t guess i’m taking a test and i can’t fail as it’s the last one before the quarter ends ( tomorrow ) id appreciate it!! thank youuu
Answer:
C. The salt is dissolved by the water
Explanation:
When ionic compounds dissolve in water, the individual ions separate and get surrounded by water molecules—a process called solvation. Because the salt ions are charged, they dissolve much better in a polar solvent, which is also slightly more charged than a nonpolar solvent
Hope this helped, Have a Great Day!!
When a warmer stream flows into a cooler lake, what happens? please answer will mark brainelist
Answer:
it steams cuz of the hot mixing with the cold
Which of the following characteristics apply mainly to invertebrates? (Choose all that
apply.)
A.) many different body plans that display all types of symmetry
b.) backbone and inner skeletal structure
c.)lack of skeletal structure in their bodies
d.)limited to no development of organ systems
Answer:
c and d
Explanation:
because they are cold blooded n have no back bone
The characteristics that mainly apply to invertebrates are as follows:
Lack of skeletal structure in their bodies.Limited to no development of organ systems.Many different body plans display all types of symmetry.Thus, the correct options are A, C, and D.
What are Invertebrates?Invertebrates may be defined as those forms of living organisms that lack a backbone, spinal cord, and central nervous system.
Invertebrates generally have bilateral or radial symmetry. They can be asymmetrical as well. They only have either incomplete or complete digestive systems. Invertebrates completely lack a skeletal system.
Therefore, the correct options for this question are A, C, and D.
To learn more about Invertebrates, refer to the link:
https://brainly.com/question/11321305
#SPJ5
When we breathe, we inhale oxygen and release carbon dioxide. What cell process does our body use the oxygen for?
A. Photosynthesis
B. Cellular respiration
C. Osmosis
Answer:
Cellular respiration
Explanation:
This is because if you see Photosynthesis is used for plants to get a food source from the Sun. Osmosis is the movement of chemicals from a less converted membrane to a more. I think i said that wrong but. I am sure it is cellular respiration which is the despirsion of waste products. So yeah Answer is Cellular respiration
What happened when Earth's first atmosphere collapsed? Will mark you as brainliest!
- it created oxygen
-it formed the oceans
-it triggered an ice age
-it fell as rain, watering the earliest plants
Explanation:
solar radiation would break atmospheric water into oxygen, which would react with carbon on the Earth to form carbon dioxide. The air would still be too thin to breathe. The lack of atmosphere would chill the Earth's surface.Plants and land animals would die
An RNA sequence includes 12 nitrogenous bases, AUGGUGCAUGUC. What is the maximum number of amino acids for which this sequence could code?
A). 4
B). 3
C). 2
D). 12
Answer:
In the mRNA sequence AUGGUGCAUGUC the maximum number of amino acids that can be encoded is 4 (option A).
Explanation:
Messenger RNA (mRNA) has a sequence of nitrogenous bases produced by the transcription of a DNA strand. This sequence of bases is organized in triplets or codons —made up of 3 nitrogenous bases— that can encode an amino acid, or mark the beginning or end —STOP codon—of protein synthesis.
From the sequence:
AUGGUGCAUGUC
Four codons are obtained, each of which encodes a different amino acid:
Codons: AUG-GUG-CAU-GUC
Amino acids: Met - Val - His - Val
Methionine Valine Histidina and Valine are the four amino acids encoded by the 12 nucleotide sequence of the mRNA.
Which of the following is a way ATP is used in cellular processes? Select all that apply.
detoxification
muscle contraction
oxygen production
biosynthesis
polyatomic ions
Answer:
detoxification muscle contraction biosynthesisExplanation:
ATP, adenosine triphosphate, is a molecule high in chemical energy. It is made up of a ribose ring, the nitrogenous base adenine, and 3 phosphate groups in a phosphoester linkage at carbon 5
ATP is broken down, losing a phosphate group, and energy is released from breaking the phosphate bond. The other two phosphates in ADP are lined by stable p hosphoanhydride bonds.
[tex]ATP+H_{2}O[/tex] → [tex]ADP+Pi+free \hspace{0.1cm} energy[/tex]
In the body, ATP molecules are used to provide energy for detoxification in forms of active transport; fueling biosynthesis- the modification of different compounds to form macromolecules; and muscle contraction, providing energy to myosin, and braking myosin actin cross-linkages to free myosin for other contractions.
What sea creature is this?
Answer:
i wanna say a stingray but im not 100% sure
Explanation:
Which of the following is an example of a free-running cycle?
a) A dog that sleeps all night and stays awake all day
b) A cat that wakes at night and sleeps during the day
c) A dog that sleeps and wakes at various times of the day and night
d) A baby that sleeps four hours at a time, then awakens to eat
Answer:
A.
Explanation:
Its True because the dog sleep like human
Which is the best hypothesis for the scientific question “How does light intensity affect the rate of photosynthesis?”
Answer:
A hypothesis for this question could be: If there is more light intensity on a plant then, there would be higher rates of photosynthesis.
Explanation:
Answer:
The answer to this question would be C.) If the distance between the source of light and the plant is increased, the rate of photosynthesis will decrease.
Explanation:
Hope this helps :) !!!!!!!!!!!!!!!!!
Please push that thank you button and have a good day !!!!!!!!!!!!!!!!!!!!
How do changes in wind currents affect the short-term climate in a region?
88
O Prevailing winds can cause a milder climate with heavy rain.
Global winds can cause a longer summer.
O Prevailing winds can cause heavy rains or a dry climate.
O Global winds can cause a longer winter.
The changes in wind currents affect the short-term climate in a region occurs prevailing winds can cause heavy rains or a dry climate.
Why is the climate changing?Climate change can be caused by natural processes on the Earth itself or by external forces, including variations in the intensity of sunlight, or even more recently, by human action.
The changes in the sea currents which affect the waters and the climate of the region. Thus the answer is prevailing currents created large rain. These events lead to the creation of the changes that lead to the formation of the weather changes.
see more about the changes in the winds at brainly.com/question/8605726
#SPJ2
Answer:
C. Prevailing winds can cause heavy rains or a dry climate.
Explanation:
Prevailing winds can cause heavy rains or a dry climate.
Prevailing winds can cause heavy rains or a dry climate.
Prevailing winds can cause heavy rains or a dry climate.
Prevailing winds can cause heavy rains or a dry climate.
Prevailing winds can cause heavy rains or a dry climate.
Prevailing winds can cause heavy rains or a dry climate.
Prevailing winds can cause heavy rains or a dry climate.
Prevailing winds can cause heavy rains or a dry climate.
Prevailing winds can cause heavy rains or a dry climate.
Prevailing winds can cause heavy rains or a dry climate.
*
How many copies of DNA are made when replication is complete?
14 points
O A4
B3
C2
D 1
Which of these organisms would most likely be found at the top of an energy pyramid?
a clams - a primary consumer
b. sardines - a primary consumer
c. sharks - a secondary consumer
d. kelp - a primary producer
The energy pyramid is a diagram that shows the flow of energy between trophic levels in an ecosystem. In an energy pyramid, the energy flows from producers to consumers.
The organisms that would most likely be found at top of the energy pyramid are sharks (secondary consumers).In an energy pyramid, the energy flows from producers (e.g., plants) to primary consumers (eg., herbivores). Subsequently, the energy then flows from primary consumers to secondary consumers (e.g., carnivores) and so successively.In an energy pyramid, the amount of available energy decreases as it moves through subsequent trophic levels.In conclusion, the organisms that would most likely be found at top of the energy pyramid are sharks (secondary consumers).
Learn more in:
https://brainly.com/question/1616196?referrer=searchResults
Which statement correctly describes the reason for the high specific heat of water?
A.) Water has unusually strong hydrogen bonding. These bonds require extra energy to break. Therefore, water has a high specific heat.
B.) The oxygen and hydrogen atoms in water molecules are bonded together with strong covalent bonds. The bonds require extra energy to break. Therefore, water has a high specific heat.
C.) Water is made of ions. The attraction between ions requires extra energy to break. Therefore, water has a high specific heat.
D.) The oxygen and hydrogen atoms in water molecules are bonded together with strong ionic bonds. The bonds require extra energy to break. Therefore, water has a high specific heat.
The answer is A.) Water has unusually strong hydrogen bonding. These bonds require extra energy to break. Therefore, water has a high specific heat.
During an infection, white blood cells travel to the infected site and phagocytize the pathogens. After phagocytosis, primary lysosomes fuse with the phagocytic vesicle to form a larger vesicle called a secondary lysosome. The reason for this is:
answer choices
a) to introduce antibodies to the phagocytic vesicles
b) to wrap the pathogen in additional membrane, rendering them harmless
c) to prepare the bacteria for export from the body
d) to mix the pathogens with strong hydrolytic enzymes and destroy them
Answer:
d) to mix the pathogens with strong hydrolytic enzymes and destroy them
Explanation:
phagocytosis occurs when a cell engulfs a molecule to break it down.
white blood cells are known as phagocytes as they ingest invading bacteria to break them down and destroy them.
The bacteria is first enclosed by a phagocytic vesicle that lysosomes fuse with on fusing lysosomes then break down the bacteria by mixing them with strong hydrolytic enzymes.
If Iron (+3 lon) were to bond with Oxygen, what would be the Chemical Formula:
Fe2O3
Fe20
FeO
Fe302
Pleas give me an answer if you actually really know the answer because everybody is giving different answers, pls
Answer:
plants
Explanation:
plants are green
Answer:
Some kind of organisms that chloroplasts are found in are green plants and algae, also photosynthetic tissues that are not green, such as red leaves, etc.
Explanation:
Hope it helps!
Please help me with #6 please
Answer:
The sodium-potassium pump system moves sodium and potassium ions against large concentration gradients. It moves two potassium ions into the cell where potassium levels are high, and pumps three sodium ions out of the cell and into the extracellular fluid.
Explanation:
describe what happens to the chromosomes in the anaphase telophase. Enter your answer in the space provided.
What is the theory of spontaneous generation? Please give an example. Thanks!!!
Answer:
cell theroy Explanation:
they used to think cells just until the discoverd cells come from pre existing cells
c) Explain why antibiotics can be used to treat bacterial infections, but not viral infections
Answer:
antibiotics cannot kill viruses, they can only kill bacteria
Explanation:
Chemically speaking, enzymes are composed of chains of _________________, and they are considered to be a type of__________________.
Answer:
chains of amino acid;
type of protein
How does affluence impact the environment?
Answer:
Such a lifestyle leads to unnecessary depletion of resources. Such affluence has terrible consequences for the environment. Affluent societies have the financial means to invest in technological research that can reduce pollution and other forms of consumer waste. Wealthier nations tend to have cleaner air and water.
Hope I helped! :)
What percent of solar radiation is filtered by clouds and may cause sunburn on cloudy days? 3 percent 14 percent 22 percent 31 percent
Answer: C (22 percent)
Explanation: edge 2021
The percent of solar radiation that is filtered by clouds and may cause sunburn on cloudy days is 22 percent.
What is solar radiation?Solar radiation refers to the radiant energy emitted by the Sun, which may be harmful to human health.
Direct solar radiation may result harmful to humans because it may cause:
BurnsMutations in skin cellsSolar radiation contains Ultraviolet (UV) light, which may cause damage in DNA even on cloudy days and thus produces mutations.
In conclusion, the percent of solar radiation that is filtered by clouds and may cause sunburn on cloudy days is 22 percent.
Learn more about solar radiation here:
https://brainly.com/question/26059802
PLEASE HELP
If guinea pigs, black fur is dominant over white fur. Which of the following alleles could represent the gene for white fur? Hint we use the letter of the dominant trait
B b W or w?
I strongly belive its W Please let me know
Answer:
...
Explanation:
I need help with this question for Biology:
Diffusion and osmosis are both vital to cell function. Diffusion and osmosis are similar in that they are both types of?
A) protein synthesis processes
B) passive transport processes
C) cellular replication processes
D)cellular metabolism processes
Besides helping to discover the structure of DNA, describe two other contributions Rosalind Franklin made to the world of science.
Answer: Rosalind Franklin discovered the density of DNA and, more importantly, established that the molecule existed in a helical conformation. Her work to make clearer X-ray patterns of DNA molecules laid the foundation for James Watson and Francis Crick's suggestion that DNA is a double-helix polymer in 1953.
Explanation:
Rosalind Franklin made numerous contributions to science in addition to helping to discover the structure of DNA, and in the field of virology, in coal-based materials, by using X-ray crystallography, in agriculture, etc.
What is the contribution of Rosalind Franklin?She was one of the greatest scientists who made significant contributions to the field of DNA by using X-ray crystallography, and apart from that, she also made contributions to the field of virology. As X-ray diffraction facilitates the study of the structure of viruses such as the tobacco mosaic virus and the polio virus and helps in understanding the replication of viruses, it is also helpful in the study of the structure of coal and other carbon-based materials.
Hence, Rosalind Franklin made numerous contributions to science in addition to helping to discover the structure of DNA, and in the field of virology, in coal-based materials, by using X-ray crystallography, in agriculture, etc.
Learn more about Rosalind Franklin here.
https://brainly.com/question/6707318
#SPJ2