Answer: The separation scheme used to separate the mixture is based on differences in the physical properties (such as boiling point, melting point, solubility in a given solvent, etc.) of three components.
What is the equation that calculate growth rate in a population including information on migrations
Answer:
Population Growth Rate
It is calculated by dividing the number of people added to a population in a year (Natural Increase + Net In-Migration) by the population size at the start of the year. If births equal deaths and there is zero net migration, the growth rate will be zero.
Explanation:
The whip-like tail of a protozoan is called a:
flagellum
cilia
O pseudopod
none of the above
HELPPPP !!!
Explanation:
Flagellum
........
...
The table lists some organelles and functions. Only one pair is correctly matched.
Organelle
Lysosome
Vacuole
Mitochondrion
Ribosome
Functions of Organelles
Function
Stores water and waste materials
Breaks down sugars
Breaks down waste materials and debris
Produces proteins for the cell
Which organelle in the table is correctly matched with its function?
lysosome
vacuole
mitochondrion
ribosome
Answer:
Vacuole-Stores water and waste material.
This maintains turgidity in pants.It is large in size and occupies the center of palnt's cells.
Mitochondrion- Breaks down sugars.
This breaks down sugars during cellular respiration to produce energy as ATPs.
Lysosomes-Breaks down waste materials and debris.
This removes worn out cells and organelles.It is a vital organelle.
Ribosomes-Produces proteins for the cells.
This is the site of protein synthesis through translation of transcripted mRNA in the cells.
Explanation:
Answer:
D. ribosome , ribosomes produce the body's protein
Explanation:
11. The flowchart below depicts a potential sequence of events in an organism.
Which phrase belongs in the box X of the flowchart?
A Decrease in genetic variability of offspring
B Decreased number of altered genes
C Increase in the production of functional gametes
O
D Increased chance of cancer
Which is one characteristic of deep ocean currents?
move quickly
Move because of wind
move cold water
O move in a circular pattern
Answer:
extremly cold water currents..... may the option is c
may be it helps you.... friend ✌✌
Answer:
C
Explanation:
You are having a conversation with your younger sibling. He believes the moon produces its own light, similar to the sun. How would you explain to him the reason we are able to see the moon at night and why we see different phases of the moon.
On April 20, 2010, an explosion on the Deepwater Horizon Macondo oil well drilling platform released 4 million barrels (636,000 cubic meters) of oil into the Gulf of Mexico. It took scientists and engineers nearly three months and several different attempts to cap the well. The Macondo oil well was located 1524 m (5000 feet) below the surface of the water, about 80 km (50 miles) off the coast of Louisiana. The spill affected 2113 km (1300 miles) of shoreline along the coasts of five states. Most crude oil contains 84–87% carbon by weight. Scientists have not yet fully assessed the environmental impact of the accident.
Computer modeling can be used to help improve cleanup and response systems for the next major oil spill. Which of these uses demonstrates how computer modeling can be used to minimize the impact of another spill?
a
Creating a model of how the oil spread through the Gulf of Mexico to predict what areas need the greatest amount of protection.
b
Calculating the total oil that entered the Gulf of Mexico during the spill.
c
Recording the number and type of each dead organism collected during the spill.
d
Finding the average flow rate of the oil through the burst pipeline during the spill.
Answer:
I would pick a, because if you can see where the most oil spills or where it flows it will be easier to predict when another spill is about to happen.
Explanation:
Assume Kira went out to eat after the dance competition and consumed an excessive amount of carbohydrates. Which of the following would the pancreas do in order to help her body maintain homeostasis?
A. Secrete glucagon, to stimulate her liver to break down glycogen
and release more glucose into the blood
B. Secrete glucagon, to stimulate her liver to take up the glucose and store it as glycogen
C. Secrete insulin, to stimulate her liver to break down glycogen and
release more glucose into the blood
D. Secrete insulin, to stimulate her liver to take up the glucose and store it as glycogen
Answer:
D. Secrete insulin, to stimulate her liver to take up the glucose and store it as glycogen
Explanation:
Nitrogen fixation is carried out by nitrogen-fixing plants and fungi.
True or False?
Which of the following statements about blood pH is true?
A. Carbon dioxide is a buffer that helps the blood pH remain around 7.4.
B. Carbonic acid is a waste product that makes blood pH deviate from 7.4.
C. 7.4 is a neutral pH, and the whole body needs to remain neutral to maintain homeostasis.
D. At a pH too far from 7.4, enzymes in the blood will stop functioning properly.
each new strand of DNA that is is refered to as a _____
Answer:
DNA replication is the process by which DNA makes a copy of itself during cell division.
Explanation:
Hope that helps! Have a nice day!
What causes the flu?
Answer:
What Causes the Flu? The flu is caused by influenza viruses that infect the nose, throat, and lungs. These viruses spread when people with flu cough, sneeze or talk, sending droplets with the virus into the air and potentially into the mouths or noses of people who are nearby.
Answer:
The virus spreads when a person sneezes or coughs.
Explanation:
Which describes a target cell? releases hormones into the blood produces a particular hormone recognizes a hormone’s chemical structure destroys hormones in the blood
Answer:
recognizes a hormone’s chemical structure
Explanation:
In living systems, chemical messengers called hormones are secreted into the body via the bloodstream or ducts by certain glands called endocrine glands e.g pancreas, hypothalamus etc. These hormones are meant to effect a physiological change in certain cells called TARGET CELLS.
In biology, a target cell is any receiving cell that has the ability to respond to signals and messengers like hormones. This responding ability of hormones is due to the possession of specific receptor sites for the specific hormones. The receptor on a particular target cell recognizes that specific hormone's chemical structure, hence, will only respond to it.
For example, an insulin hormone secreted by the pancreas will only be responded to by a target cell that recognizes the chemical structure of the insulin protein using its receptor molecule.
How are carbon atoms produced in an ecosystem
Answer:
Photosynthesis by land plants, bacteria, and algae converts carbon dioxide or bicarbonate into organic molecules. Organic molecules made by photosynthesizers are passed through food chains. Good Luck!!
Explanation:
How do biological agents contribute to weathering??
Which two characteristics do organisms in kingdoms Plantae and Animalia
have in common?
O A. They are multicellular.
B. They have eukaryotic cells.
C. They are photosynthetic.
O D. They have prokaryotic cells.
SUBMIT
Answer:
B: they have eukaryotic cells. & A: they are multicellular.
Explanation:
The characteristics shared by plants and animals include A. They are multicellular and B. They have eukaryotic cells.
Eukaryotes organisms are organisms whose cells have a nucleus and membrane-bound organelles; whereas prokaryotic organisms are unicellular organisms that do not have membrane-bound structures and/or organelles
Eukaryotic organisms include animals (kingdom Animalia), plants (kingdom Plantae), fungi (kingdom Fungi), and protists (Kingdom Protista).
Multicellular organisms are organisms composed of two or more cells. Multicellular organisms include plants, animals and fungi.
Photosynthetic organisms are organisms that make their own food from sunlight (e.g., plants).
Learn more in:
https://brainly.com/question/9031447?referrer=searchResults
Choose the correct word that describes the description. When there is very little solute dissolved in a lot of solvent. solute? solvent? saturated? dilute?
Answer: Dilute
The maximum amount of solute that can be dissolved in a solvent is a saturated solution at a certain temperature is called saturated solution.
Solute and solvent are not the correct description.
A dilute solution has very little solute dissolved in the solvent.
Two next-door neighbours use very different strategies when it comes to landscaping their front yards. One neighbour plants a front lawn of lush green grass that requires regular watering and fertilizer application. The other neighbour uses
stone pathways that wind through a variety of drought-resistant wild flowers and shrubs that are native to the area.
Explain why the drought-resistant wild flowers and native shrubs contribute more to the sustainability of a yard than does the lush green grass.
Answer: When the city/county/state/region declares a drought and stops the use of water on lawns, the green stuff dies.The guy with the drought resistant set up will hardly notice any difference in the look of his yard.
Explanation:
It is observed In the case of grass lawns, that the lush green grasses have more requirements as compared to the area covered with wildflowers and shrubs.
What are their requirements?The requirements include one of the most essential elements water. Compared to the drought-resistant plants grown by the second neighbor, the grass lawns require a large amount of water for their growth. This in turn adds a burden in the form of water requirements.
How do they survive?Drought-resistant plants take nutrients in the form of nourishment and protection whereas the grass requires the use of fertilizers as well as chemical pesticides to provide resistance to the grass against the potent pests and due to the requirement of a large amount of water by the lawns, there are chances of these chemicals getting washed away and entering into a nearby water source, and they don't get enough of the nourishment.
The drought-resistant varieties and the native plants are more potent to survive the conditions already present there and thus are more sustainable.
Learn more about the adaption here:
http://brainly.com/question/24514288
#SPJ2
Multiple Choice:
Which species is most likely to exhibit clumped dispersion?
A. dandelions with seeds dispersed by the wind
B. tigers that defend their territories from one another
C. a bird that nests in many different types of trees
D. a tree that grows only on the banks of streams
Answer:
The correct answer is D
Explanation: I took this test on Edmentum. Got it right.
how are animals like as heterotophs
Answer:
Animals are known as heterotrophs because they cannot create their own food (like plants) and must consume other forms of life to survive.
Explanation:
What is a hypothesis? Explain.
Answer:
A hypothesis is a tentative statement about the relationship between two or more variables. It is a specific, testable prediction about what you expect to happen in a study.
Explanation:
Answer:
a testable prediction that regards the possible outcomes of a study. (aka an educated guess)
Explanation:
The initial building block in the scientific method is a scientific hypothesis. It is defined by many as a "informed guess," based on prior experience and observation. While this is true, the definition can be extended. The theory also provides an interpretation as to why the assumption could be right.
hope this helped
Which of these practices does the most to keep the water table from
dropping near a farm?
Answer:
Drip irrigation
Explanation:
1 Morphology 2. Mitochondrial DNA 3. Nuclear DNA 4. Medulla 5. Herbert L. MacDonell 6. Plastic prints a. Found in small structures outside the nucleus of a cell and is inherited from the biological mother. b. Hair’s form and structure. c. Prints created when the finger touches a soft material like soap or putty. d. Has studied bloodstains extensively and has offered a number of important observations about bloodstains. e. Found in the nucleus of a cell and is inherited from both biological parents. f. A set of cells that runs through a hair.
Answer:
a. Mitochondrial DNA b. Morphology c. Plastic prints d. Herbert D. Macdonald e. Nuclear DNA f. Medulla
Explanation:
a. Found in small structures outside the nucleus of a cell and is inherited from the biological mother - Mitochondrial DNA
b. Hair’s form and structure Hair's morphology
c. Prints created when the finger touches a soft material like soap or putty - Plastic prints
d. Has studied bloodstains extensively and has offered a number of important observations about bloodstains - Herbert L. MacDonell.
e. Found in the nucleus of a cell and is inherited from both biological parents - Nuclear DNA
f. A set of cells that runs through a hair - medulla
NEED HELP ASAP!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
QUESTION 5
Did the universe cool off or get hotter as it expanded after the 'big bang"?
The universe is the same temperature it has always been
The universe gets hotter as it expands, and cooler when it contracts.
The universe got hotter and is still getting hotter.
The universe cooled off after the 'big bang"
QUESTION 6
Cosmology is the study of the universe.
True
False
QUESTION 7
What is happening to the universe today?
The universe is the same as it was billions of years ago.
The universe is expanding.
The universe is contracting.
QUESTION 8
Remote sensing of the Earth's surface and atmosphere may involve the use of what type of instruments?
satellites
underwater probes
calorimeter
siesmographs
QUESTION 9
Droughts can influence which of the following?
both the resources and population
the resources available to a population
the population directly
neither the resources nor the population
QUESTION 10
Remote sensing allows us to do which of the following?
determine what the weather is like in remote locations such as in the middle of the ocean
locate and examine some natural disasters
study drought conditions in different parts of the world without the need to travel to remote locations
All of the above.
QUESTION 11
What is the most abundant salt in seawater?
quartz sulfate
sodium chloride
soap
sugar
QUESTION 12
Why is the ocean dark below ~200 meters?
All the light has been absorbed by the water above.
The water is too salty for the light to travel farther.
wet water absorbs more light than dry water
The light reaches to all depths of the ocean.
QUESTION 13
What effect does the Earth’s moon have on the oceans?
The Moon is responsible for the tides.
When the Moon is full, cheese from the Moon may fall into the ocean.
The Moon causes extreme temperature fluctuations every 30-32 years
The Moon is too far away from the Earth to have an impact.
Answer:
6 = True
8 = satellites
9 = both the resources and population
10 = All of the above.
12 = sodium chloride
12 = All the light has been absorbed by the water above.
13 = The Moon is responsible for the tides. (The second chioce made me laugh XD)
Explanation:
I don't know 7 or 5
Have a good day. :)
Hope this helps!
(brainliest would be appreciated)
n three (3) sentences, explain the function of a vacuole in plant cells.
Answer:
A vacuole is used for temporary storage of water, waste products, food, and cellular material. ... Vacuoles are larger in plant cells than animal cells to store the water and other materials needed by the cell.
Answer:
the answser above me is correct
Explanation:
Who was the first person to base a system of classification on organisms having similar structures
Answer:
Linnaeus
Explanation:
1. Linnaeus set up a classification system based on structural similarity. He thought that the organisms that looked alike were the most closely related.
Answer:
Linnaeus
Explanation:
Linnaeus made a classification system based on structural similarity of the organism. He thought that the organisms that looked alike were the closely related to each other.
HOPE IT HELPS :)
PLEASE MARK IT THE BRAINLIEST!
need help asap!
Which bone cells would be called on to chew up the bone and put more calcium in the blood?
a. Osteophytes
b. Osteopaths
c. Osteoclasts
d. Osteoblasts
e. Osteocytes
Answer:
Osteoblasts. is the answer
What type of fat is found in meat and most animal products, and can increase your cholesterol levels when consumed?
OA.
Unsaturated fats
OB.
Saturated fats
C.
Trans-fats
D.
Triglycerides
Answer saturated fats :
Explanation:saturated fats raise both Hdl and ldl cholesterol levels
Answer:
Saturated fats
Explanation:
took test
Why is flooding more likely after many trees are removed from an area?
A. Without the trees, evaporation rates slow down.
B. Without the trees, water runs off rather than percolating into the
soil.
C. Without the trees, most of the animals die and therefore don't
drink the water.
D. Without the trees, precipitation increases dramatically.
SUBMIT
Answer:
Without the trees, water runs off rather than percolating into the
soil.
Explanation:
Flooding is the excessive flow of water due to increased rainfall. It usually deprives the soil of the affected area of essential nutrients. However, the presence of trees in an area can help prevent or reduce the possibility of flooding. The roots of large trees help hold the soil together, which improves the porousness of the soil. Also, trees store water that is meant to runoff.
Without the trees, the absorption or percolation of water into the ground/soil will be reduced, hence, the excess water runsoff the surface leading to flooding.
Lab: Effects of Human Activity on Freshwater Resources
Lab Report
Active
Answer:
destruction of human health
