Cnidarians are mostly composed of _____
A.water.
B.cytoplasm.
C.blood.
D.jelly.
Answers
Answer:
D
Explanation:
Their bodies consist of mesoglea, a non-living jelly-like substance, sandwiched between two layers of epithelium that are mostly one cell thick
Related Questions
i need help with this please and thank you.
Answers
Phoenician gold and silver jewelry was_________________.
A) well-crafted
B) delicate
C) based on Egyptian designs
D) all of the above
Answers
Answer:
all of the above i believe..
Explanation:
Answer
its d
Explanation:
PLZ HELP ME ASAP
What is the relationship between reproduction and death rate?
Put in ANY answer that answers the given question, thx.
BTW ILY AND UR THE BEST <3
Answers
Answer:
Explanation:
The relationship between betwen reproduction and death rate is the difference between birth and death rates. It measures the degree to which a population is growing.
Help needed!! Please
Answers
(1) Use complete sentences to explain the advantage of using binomial nomenclature in the system of classification. Also explain what kind of information you can get about the organism from its scientific name.
(2) The diagram below shows the branching tree diagram for humans. The text box below it shows the set of derived shared characteristics for the branching tree.
A slanting, horizontal line is shown. On the extreme left, there is a label that says Common Ancestor. Along the slanting, horizontal line there are five dots labeled from left to right as 1, 2, 3, 4, and 5. There is one vertical line between each of the consecutive five dots. The lines are labeled from left to right as Perch, Frog, Pigeon, Rats, and Human. A text box below the branching tree diagram is labeled Derived Shared Characteristics. In the box it says from left to right, Terrestrial during all stages, Jaws, Walking on two legs, Mammary glands and hair, and Four limbs.
Look at the possible derived shared characteristics, shown in the text box. Think about where these should be placed along the branching tree diagram. From the text box, select a shared derived characteristic that frogs and pigeons have. Explain why you think frogs and pigeons share this characteristic.
Answers
Answer:
The advantage of using a binormal nomenclature in the system of classification is it formally names animals of a species of living things by giving a two-part name which either is based on Latin or other languages. One Part is used to classify the genus and the second part of the specific name. An example of this would be ( for humans ).
Hope I helped you,
I need help on this row thanks !
Answers
For 3 the value of x is 106
For 6 the value of x is 20
For 9 the value of x is 44
1.) x = 106
2.) x = 20
3.) x = 44
Explanation:
1.) 174 - 68 = 106
2.) 6x = 120
x = 20
3.) 3x + 30 = 162
3x = 132
x = 44
Which organisms are not necessary for secondary succession to begin?
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If a short haired SS guinea pig is crossed with a long haired ss guinea pig what percentage of their offspring will have short hair?
Answers
Answer:
100%
Explanation:
Help need help please!!
Answers
Answer:
A
Explanation:
Its a because coral reefs protect coastlines
Answer:
A
It is the geosphere and biosphere, trust me.
EXPERT HELP i'LL GIVE BRAINLIEST: Which TWO phrases best describe vascular tissue in plants?
B. Contain cells that connect to form pipes
D. Transport water and food
A . Contain root hair cells and guard cells
C. Cover the outside of plants
Answers
Answer:
B ) Contain cells that connect to form pipes.
D ) Transport water and food.
Explanation:
Vascular tissue is a conducting tissue, meaning multiple cell types can be found. Their functions are to transport fluids and nutrients. To do this, they need cells that connect to form tube like pipes.
Which phrase best describes the process of facilitated diffusion
Answers
i will give u a braily if u answer corecctly
Answers
Temperature can affect density in certain ways. If the temperature decreases, what effect can that have on the density of a substance?
Answers
Liquid water at 25 deg is so rapidly breaking bonds between H2O units and reforming them that extra water molecules get trapped inside the water lattice. This is the reason why liquid water is more dense than solid water.
The bonds in water break more slowly as temperature decreases and the structure tend to trap fewer extra water molecules. At low temperature, more of the water has the same lattice as ice.
Wikipedia, Water Density
It is possible to have liquid water at temperatures well below 0 deg C. Molecules in this supercooled water are free to move. Bonds are made and broken. The long range structure is not perfect but the short range structure of supercooled water is very much like ice. Adding a crystal to supercooled water causes instantaneous ice formation.
Explanation: :P
Fossils of the Dorudon, an aquatic mammal that lived over 40 million years ago, show a whale-like animal that had small, underdeveloped hind limbs. Which best explains how fossils like the Dorudon support the theory that plant and animal life has evolved over time?
Answers
Answer:
they prove that animals evloved from a sinle anncestor
PLEASE HELP I NEED THIS DONE TODAY. THE QUESTION IS UNDERLINED . FILL IN THE THINK SECTION ONLY
Answers
How fast/ or slow the object decreases
And the changes in direction
What would the function of Mitosis and meiosis be in a mosquito?
Answers
Answer:
Like any other cells the cells of the mosquito also undergoes the cell cycle. When it is in the resting Interphase growth occurs in the cells and replication of chromosomes occur. Then in prophase the nuclear membrane is lost and the chromosomes become thickened and coiled.
Explanation:
Answer:
Like any other cells the cells of the mosquito also undergoes the cell cycle. When it is in the resting Interphase growth occurs in the cells and replication of chromosomes occur. Then in prophase the nuclear membrane is lost and the chromosomes become thickened and coiled.
No plagiarism pls!!!!!!!!
Explain homeostasis and why it’s important to the body
Answers
Answer:
Homeostasis regulates your body. When you are too hot, your body produces sweat to cool you down. When you're cold, you muscles shiver to generate warmth. When you have high glucose levels in your blood, your pancreas excretes insulin, and when blood glucose is too low, then it excretes glycogen. Homeostasis basically keeps your body from losing control and it helps you survive.
Sea stars can move slowly with the aid of
A.muscular foot.
B.jointed legs.
C.radial arms.
D.tube feet.
Answers
Answer:
Tube feet
Explanation:
This tube feet help the sea stars balance in water
What is an example of how anatomical homologies (similar bone structure) are used to
show evidence of common ancestry among groups of organisms?
Answers
why is the prevention of epidemics usually easier than the prevention of pandemics
Answers
Answer:
Most epidemics are like protest, but pandemics are fast spreading diseases that are hard to stop
Explanation:
plz pick me brainliest
Among the gas giants, which planet has the lowest number of known natural satellites orbiting it?
Answers
Answer:
neptune
Explanation:
it has the least
Among the gas giants, Neptune has the lowest number of known natural satellites orbiting around it. Neptune has 14 satellites which revolve around it.
What are gas giants?
A gas giant is a giant planet which is composed mainly of hydrogen and helium gases. Gas giants are also known as failed stars because they contain the same basic elements which are present in the stars. Jupiter and Saturn are the gas giants of the Solar System. The gas giants can also be called as giant planets.
The four gas giants in the solar system are Neptune, Uranus, Saturn, and Jupiter. These are also known as the Jovian planets, it refers to the Roman god Jupiter and was intended to indicate that all of these planets were similar to Jupiter god. Among these gas giants. Neptune contains the least number of satellites i.e., 14 orbiting around it.
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Which are examples of environmental changes that can influence natural selection? Select the THREE (3) that apply.
predators
availability of water
temperature
height of legs
fur
natural disaster
color of body
size of body
size of beak
Answers
2. Temperature
3.Natural Disaster
The three examples of environmental changes that can influence natural selection are:
Availability of waterTemperatureNatural DisasterWhat is Natural Selection?
Natural selection is a set of characters that deal with the most favorable variations that are promoted by nature.
As predators, the height of legs, fur, the color of the body, size of the body, and size of the beak is not related with environmental changes. It can also be said that these characteristics lead to natural selection depending on the conditions, such characteristics are not linked with environmental changes directly.
Therefore, the three examples of environmental changes that can influence natural selection are the availability of water, temperature, and natural disasters.
To learn more natural selection, refer to the link:
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A junction where one neuron can transfer an impulse to another structure is called:
a.
axon.
b.
dendron.
c.
cell body.
d.
synapse.
Please select the best answer from the choices provided
A
B
C
D
Answers
Answer:
d. synapse
Explanation:
Synapse, also called neuronal junction, the site of transmission of electric nerve impulses between two nerve cells (neurons) or between a neuron and a gland or muscle cell (effector). A synaptic connection between a neuron and a muscle cell is called a neuromuscular junction.
(PLZ HELP, I CAN'T FAIL THIS, SO PLZ GIVE ME A GOOD ANSWER FOR THIS) Properties of Light Lab Report
Procedure:
Please be sure to identify the test variable (independent variable) and the outcome variable (dependent variable) for this investigation. Remember, the test variable is what is changing in this investigation. The outcome variable is what you are measuring in this investigation.
Test variable (independent variable):
Outcome variable (dependent variable):
Select Intro to begin.
Once the simulation loads, you will drag the protractor onto the screen so that the 0 lines up with the dotted line in the center of the screen.
You will test all three materials in the bottom, blue half of the screen: air, water, and glass.
Record your observations of how the light rays interact as they pass from air, on the top of the screen, through the three materials on the bottom of the screen
Data:
Record the data from each trial in the data chart below. Be sure to fill in the chart completely.
Material Interactions
List any observations you made as the light rays passed from the air on the top of the screen to the selected material on the bottom of the screen. Evidence
Using the protractor, measure the angle as the light passes from the top material to the bottom material on the screen. Also, note the index of refraction for each as indicated on the screen.
Trial One Air on top
Angle:
Index of refraction:
Air on bottom
Trial Two Air on top
Angle:
Index of refraction:
Water on bottom
Trial Three Air on top
Angle:
Index of refraction:
Glass on bottom
Conclusion:
Your conclusion will include a summary of the lab results and an interpretation of the results. Please write in complete sentences.
Did your data support your hypothesis? Use evidence to explain.
Which material refracted the light rays the most: air, water, or glass?
Which material refracted the light rays the least: air, water, or glass?
How does density affect refraction?
Diamonds are a very dense material. Predict what would happen to the light ray if you projected it from air through a diamond.
Explain where you observe reflection, refraction, and absorption of light in your everyday activities.
Answers
Answer:
Objective(s):
In your own words, what was the purpose of this lab?
To explain how different materials make light bend.
Hypothesis:
In this section, please include the if/then statement you developed during your lab activity. This statement reflects your predicted outcome for the experiment.
If I project light rays through (choose one: air, water, glass), then they will refract, or bend, the most.
If I project light rays through glass, then they will refract the most.
Procedure:
Please be sure to identify the test variable (independent variable) and the outcome variable (dependent variable) for this investigation. Remember, the test variable is what is changing in this investigation. The outcome variable is what you are measuring in this investigation.
Test variable (independent variable):
Outcome variable (dependent variable):
Select Intro to begin.
Once the simulation loads, you will drag the protractor onto the screen so that the 0 lines up with the dotted line in the center of the screen.
You will test all three materials in the bottom, blue half of the screen: air, water, and glass.
Record your observations of how the light rays interact as they pass from air, on the top of the screen, through the three materials on the bottom of the screen
Data:
Record the data from each trial in the data chart below. Be sure to fill in the chart completely.
Material
Interactions
List any observations you made as the light rays passed from the air on the top of the screen to the selected material on the bottom of the screen.
Evidence
Using the protractor, measure the angle as the light passes from the top material to the bottom material on the screen. Also, note the index of refraction for each as indicated on the screen.
Trial One
Air on top
The light goes straight through the air
Angle:
Acute
Index of refraction:
1.00
Air on bottom
Trial Two
Air on top
The light bends in the water
Angle:
Actute
Index of refraction:
1.34
Water on bottom
Trial Three
Air on top
The light almost goes straight down when it hits the glass
Angle:
Acute
Index of refraction:
1.60
Glass on bottom
Conclusion:
Your conclusion will include a summary of the lab results and an interpretation of the results. Please write in complete sentences.
Did your data support your hypothesis? Use evidence to explain.
Yes it did, the glass index refraction (1.60) is higher than the other ones.
Which material refracted the light rays the most: air, water, or glass?
glass
Which material refracted the light rays the least: air, water, or glass?
air
How does density affect refraction?
It reflects light.
Diamonds are a very dense material. Predict what would happen to the light ray if you projected it from air through a diamond.
The light would reflect everywhere,
Explain where you observe reflection, refraction, and absorption of light in your everyday activities.
In mirrors and when light from a window hits a glass of water.
Why are young plants like but not identical to their parents?
Answers
Answer:
Dna
Explanation:
because the plants adapt to the dna of the other plants I think
Mira is testing objects for her science experiment. She has a chart listing the mystery objects' densities, but no other information.
Object Density
A 12 g/cm³
B 9 g/cm³
C 3 g/cm³
D 6 g/cm³
She places each object in a large bowl of water in order to determine if any float. Which of the objects, if any, will float?
A. A
B. C
C. All objects will float
D. No objects will float
Answers
Which of the following are the first organisms to have a one-way digestive system?
A. roundworms
B.flatworms
C.jellyfish
D.sponges
Answers
Answer:
A. round worms
Explanation:
they were the first organisms to have a one-way digestive system
Answer:
the roundworms i believe
Explanation:
hope i helped in some way
No plagiarism!!!!!!!
Explain the cell theory
Answers
Answer:
Explanation:
The cell theory basically just tells you that all living things have more than one cell and that cells are made from other cells. It basically just tells you that cells are our foundation for life, without cells we can't live.
For, example, blood cells. If we didn't have blood cells our body's organs can't get the oxygen and nutrients they need to survive. Without blood cells we could get weak or we could just die instantly.
Hope this helps!!!
The basic tenets of cell theory are that all living things are made up of cells and that cells are the basic units of life. However, cell theory dives deeper than that. ... In other words, everything is made up of cells. Cells are the basic building blocks of organisms and of life.
Chromosomes are composed of two types of biomolecules. One of the biomolecules in chromosomes is called DNA, which functions as the genetic code. The other biomolecules in chromosomes are called histones, which bind the DNA tightly for cell division. Genes in DNA have the code for making histones. Based on the information above, which types of biomolecules are in chromosomes?
F Carbohydrates and lipids
G Proteins and nucleic acids
H Proteins and carbohydrates
J Nucleic acids and carbohydrates cationTM Inc
Answers
Answer:
proteins and nucleic acids
histones are proteins and DNA is made up of nucleic acids (these are the macromolecules made up of nucleotides)
Explanation:
Chromosomes are thread like structure found in nucleus of cells. It contains several biomolecules in it. DNA is nucleic acid whereas histones are protein. Hence, option “ G” is correct.
What are biomolecules?Molecules that are produced by living organisms are called biomolecules.
Example of biomolecules are Carbohydrates, Proteins, Nucleic acids and Lipids.
Carbohydrates are sugar molecules such as Glucose, Galactose Maltose, Fructose, Sucrose, Lactose, and Starch.Protein structures are of four types primary, secondary, tertiary, and quaternary structure. Histone is a kind of a protein. Nucleic acids include DNA and RNA.Biomolecules present in chromosomes are nucleic acid (DNA and RNA) and Histone protein. Hence option “G” is correct.
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Identify two organisms that have different niches in the same habitat and tell what those niches are. help plz
Answers
Answer:Deer and rabbits
Explanation:
Deer browse higher on trees and rabbits graze on grass. Since they don’t compete for food, everything is in balance