Answer:
sorry I don't have this answer
Can anybody give me a pdf or note about the flatworms?
Flatworms
James H. Thorp, D. Christopher Rogers, in Field Guide to Freshwater Invertebrates of North America, 2011
B Reproduction and Life History
Some flatworms, especially those living in temporary aquatic habitats, reproduce only once per year (univoltine), while other species are multivoltine, with the number of generations depending on environmental favorability. Most flatworms reproduce sexually, and almost all species are hermaphroditic. Although gamete exchange is most common, self-fertilization is possible in some species. Eggs are laid singly on a hard substrate, are grouped into clusters (sometimes stalked), or are placed in cocoons. Miniature flatworms emerge from eggs which have been attached to the substrate. These usually develop directly (without intermediate larval stages) into adults and differ only in size and presence of reproductive organs. A few species are ovoviviparous (young brooded inside parent) or have a distinct larval stage. Asexual reproduction occurs seasonally in many taxa and is the only form of reproduction in a few species. This form of reproduction involves differentiation of the adult body into distinct units (zooids) followed by separation into small flatworms via transverse division of the adult body. This process is aided by the remarkable regenerative abilities of flatworms.
Under demanding environmental conditions, flatworms produce resistant eggs able to survive desiccation of the surrounding environment or the animal may enter diapause (a very low metabolic state) and encyst as a whole animal or fragment of the adult.
Sexually reproducing flatworms can live from a few weeks to a few months (not counting periods of encystment), while the life span of asexual species is theoretically indefinite.
If the Sun heated our atmosphere and the molecules began
spreading apart and rising but our planet's gravity was too
weak to keep them down, what would happen?
the atmospere would drift off into space
none needed
Due to the planet's global warming caused by solar radiation, the atmosphere would float away into space. It also maintains the Earth warm whenever the sun is hidden from view at night.
What does "molecular" mean?The smallest component of a material that possesses both its chemical and physical characteristics. One or even more atoms make up molecules.
What are molecules? What are some examples?A molecule is the smallest unit of the any material that is composed of one or more elements and is capable of existing alone while maintaining all of the substance's physical and chemical properties. Further atom cell divides within molecules. For example, the symbol for the oxygen atom or molecule are O and O2, respectively.
To learn more about: molecules
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plz help
will give the brainliest!
Urgent!!
Answer:
3B
4A
5a) hormones: regulatory substances produced by a body to stimulate cells into action. secreted: produced endocrine glands: a chemical message network that regulates hormones.
5b) A: Insulin, B; Adrenaline, C: Testorone, D: Oestrogen.
What is urea? A. a structure in the kidney B. the tube that connects the kidney to the bladder C. the tube through which waste leaves the body D. the waste removed by the kidney
Will give brainlest
The answer is C
The tube through which waste leaves the body.
Answer:
D.
Explanation:
Urea is the waste removed by the kidney.
Fertilizer runoff can also damage areas of the ocean.
True or False?
Answer:
True
Explanation:
Fertilizers can sometimes contain chemicals which are known to be harmful to marine life.
Plants remove carbon from the atmosphere in the form of CO2 and store it in their structures. How can rapid deforestation affect the carbon cycle? What can be done to reduce the effects? Explain.
Answer:
Explanation:
Deforestation affects carbon cycle through the Greenhouse gas effect and global warming. Green plants, trees and forest helps to balance the amount of Carbon in the atmosphere, carbondioxide is used up by plant through the process of photosynthesis in which plants make their own food. When there is excess amount of carbon dioxide in the atmosphere as a result of deforestation ‘blanket’ of carbon dioxide is formed which traps heat and prevents it from leaving the earth surface in the atmosphere. This accumulated heat leads to global warming in the environment.
More trees should be planted to prevent rise in atmospheric a carbon and deforestation should be prevented.
Answer:
Deforestation has an effect on the Carbon Cycle also known as the Greenhouse gas effect and global warming. Trees and forest balance the amount of Carbon in the atmosphere through the process of photosynthesis in which plants make their own food with carbon dioxide. And when we remove the plants that turn CO2 into breathable air we have more CO2 over all.
How can irradiation solve a societal problem?
-It can improve medicines
-It can treat inherited diseases
-It can protect the environment
-It can prevent food-borne diseases
Answer:
It’s D it can prevent food borne diseases
Explanation:
right on EDGE 2021
Food Irradiation solves a societal problem by preventing food-borne diseases. Thus, the correct option for this question is D.
What is Food Irradiation?Food Irradiation may be defined as a type of technology that significantly enhances the safety and security that enlarge the shelf life of foods by minimizing or eliminating microorganisms and insects from food products.
The process of food irradiation remarkably makes food and its derivative products safer and healthier for consumers. It also delays the ripening of fruits, enhance rehydration, inhibits sprouting, enhances liquid or juice yields, etc.
It utilizes the technology of ionizing radiation electricity that emits X-rays and gamma rays for the destruction of microorganisms such as viruses, bacteria, or any other types of insects in the food as well.
Therefore, food irradiation can solve a societal problem by preventing the cause of food-borne diseases. Thus, the correct option for this question is D.
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Plsss helppp 40 extra points and brainleist
Answer:
The virus lacks strcutures to replicate genetic material.
Explanation:
They can replicate it, but don't have structures to do it without the help of a cell. They USE the cell to replicate it but cannot do it themself.
Virus lacks genetic matrial? It has DNA.
Protective outer shell? Ptotection has nothing to do with it.
Movement? They cannot duplicate without cells.
How does science and technology affect our lives and how will it influence the quality of our lives into the future?
how can liquid be drawn into a pipette safely
Answer:
A. by squeezing and releasing a bulb attached to the wide end of the pipette
Explanation:
A. by squeezing and releasing a bulb attached to the wide end of the pipette
SCIENCEEEEEEEEE Frieda makes a pyramid of oranges for a display at the grocery store. A few minutes later, Corwin bumps into the display and the oranges spill down. Which change of state does the motion of the oranges most closely model?
The correct answer is A. Melting
Explanation:
Melting occurs in solids as these change their state to liquid state, usually due to high temperatures. For example, if one cube of ice is exposed to heat it melts. This physical change implies the solid loss its defined shape and particles in it are not as organized as before.
This process is exemplified by the situation of the oranges because the pyramid of oranges had a defined shape and the oranges were arranged in a defined pattern; however, in the end, this shape changes, and the particles (oranges) are no longer organized in a strict pattern. Also, the distance between particles increases, which also happens when solids become liquids.
Which of the following observations best demonstrate water special property of cohesion
Answer:
You forgot to put down the "Following observations"
Explanation:
Your question can not be answered
What happens when humans bum fossil fuels?
O Carbon is released into the atmosphere.
O Carbon is removed from the atmosphere.
O Carbon is added to the the carbon cycle.
O Carbon is destroyed.
When a cell changes to become a [BLANK] cell, it is called differentiation
Answer:
It is a specialized cell
Explanation:
The cell changes from a simple zygote to a complex system of tissues and cell types.
The class took a survey of 100 people to find the most popular top 5 pizza toppings. What type of graph should they use lo display their data? a.pie chart , b.scatter plot , c.line graph , or d.bar graph
Answer:
D. Bar graph
Explanation:
A bar graph is one of the types of graph or charts used to display statistical data. They are used to compare data between different groups. A bar graph makes use of either vertical or horizontal bars, which displays the actual data being compared.
Like other graphs, a bar graph contains a X-axis (horizontal), which contains the pizza toppings being compared and a Y-axis (vertical), which contains the number of people who chose each pizza. At the end, it will be easy to determine which pizza toppings is most popular from the bar graph because the pizza with the longest bar suggests the most popular.
How does a marathon runner use oxygen and produce carbon dioxide during the marathon
Explanation:
Alright, a marathon runner is running, what do you do when you run, you breathe in (usually heavy too) so when the runner is breathing in, they take in oxygen (air), and breathe out carbon dioxide (used air.)
SOLVE A wildlife biologist and her team counted 200 individual deer
in an area of 10 square kilometers. What is the population density?
A. 20 deer per square kilometer
B. 10 deer per square kilometer
C. 2 deer per square kilometer
D. 200 deer per square kilometer
Answer:
Explanation:
ASAP Does anyone know the answer for 1-13??? I need the answers in a hurry.
Answer:
1. Glucose itself is a monomer of both sugar and starch. A monomer is a component of a polymer; in other words, many monomers come together to form a polymer.
2. Proteins
3. Nucleic acids
4. It is made of monomers called of Fatty Acids and Glycerol which are made mostly of Carbon, Oxygen, and Hydrogen atoms with mostly C and H, and a few O atoms.
5. What three elements do all bio molecules have in common? Carbon, hydrogen, and oxygen.
6. Glucose has the chemical formula`C_6H_12O_6` and is a 6-carbon sugar. Each of these carbon atomsare connected to an oxygen atom and a hydrogen atom. However, 5 of these carbon atoms are connected to hydroxyl group or OH-.
7. Each molecule contains a central carbon (C) atom, called the α-carbon, to which both an amino and a carboxyl group are attached. The remaining two bonds of the α-carbon atom are generally satisfied by a hydrogen (H) atom and the R group.
8. To form a nucleotide, a base connects to the first or primary carbon of ribose or deoxyribose.
9. 2:1
10. Nitrogens and sometimes sulfur.
11. Phosphorous
12. Cellulose, in contrast, is linear, consisting of a long chain of glucose monomers with hydrogen bonds interspersed between carbon atoms at regular intervals.
13. The first picture going from left to right is nucleic acid, the second one is lipid, the third one is carbohydrate, and the last one is protein.
Explanation:
science deals only with phenomena that can be _________. ??????
Answer:
OBSERVED!
Hope this helps :)
Answer: Observed
Explanation:
Science can only answer in terms of natural phenomena and natural processes. ... Though atoms cannot be seen with the naked eye, they can be studied with the tools of science since they are part of the natural world. Rutherford's story continues as we examine each item on the Science Checklist.
What is unique about carbohydrates
Answer:
Explanation:
Carbohydrates are the only fuel source metabolized fast enough to support hard exercise. Fiber is a carbohydrate.
25 points + brainliest! ik this is the wrong subject but not much people pick to help law Pick a side (plaintiff or defense). Pick a witness ( burglar or mr king). Choose something that could be used as evidence (an object, report, footage, etc).
Write a script on how you would introduce the evidence to the judge, pick a witness (the burglar or mr king) and write 3 questions using the evidence that will help your side.
Answer: side: plaintiff
witness: Mr. King
evedence: dog will only attack if you are on the land he is protecting
window was broken so he was trying to rob the place
guard dog was trained to attack on command
hope this helps you out
Explanation:
How many muscle tells are in the heart?
Answer:
2 billion
Explanation:
i hope this helped
Can someone help me with why a calorimeter has a lid? I’ll give brainliest. Thanks
Answer:
A calorimeter uses an insulated lid, or insulated surroundings. In the CAL2K the polystyrene surrounding is used as insulation to keep the heat of the liquid or solid sample during a reaction for an accurate measurement in the change of temperature to provide the best possible accurate results
Students are each given a 20-gram sample of an unknown solid compound in a clear plastic bag. They are instructed to break the material into smaller parts by gently hitting it with a hammer. Some of the parts break into large chunks and some look like a fine powder.
What is the question you are trying to ask?
Water and nutrients that are not cycled are stored is a
Answer:
Reservoir
Explanation:
Answer:
reservoir
Explanation:
An organic molecule will always contain
carbon
carbon and hydrogen
OO, H. and C
hydrogen
Answer:
carbon atoms
Explanation:
all organic molecules have carbon.
Which of the following is a derived unit? *
1 point
Mass
Volume
Density
Length
HELP!
Which step was most likely performed by the researcher during the
purification process?
O A. The protein was separated from lipids.
OB. The protein was stabilized using lipids.
C. The protein was separated from nucleic acids.
D. The protein was separated from nucleic acids.
Answer:
A
Explanation:
Which of the following is true of the structures labeled D in the cell membrane?
Answer:
Where is the figure??
Explanation:
But cell member is outer most layer of the cell that protect the cell and also maintains it's shape.
Which is NOT a protective
covering for the moneran?
A cytoplasm
B. cell wall
C. capsule
D. cell membrane
Answer
Explanation:
C.capsule