What are four major characteristics of the phylum Echinoderms?
Answers
Answer:A calcareous, spiny endoskeleton of plates or ossicles
A water-vascular system
Pedicellariae
Dermal branchiae
Basic penta-radial symmetry
Explanation:
Explanation:
Hope this helps....................
Related Questions
Name the nitrogen bases in RNA.
Answers
Answer: uracil
Explanation: Nucleic Acids: DNA and RNA
Nucleic Acids: DNA and RNA Four different types of nitrogenous bases are found in DNA: adenine (A), thymine (T), cytosine (C), and guanine (G). In RNA, the thymine is replaced by uracil (U).
Most viruses are about _____ times smaler than the average cell.
a 1,000
b 300
c 100
d 10
Answers
Answer:
A) 1000
Most viruses are 1000 times smaller than the average cell
And viruses are smaller again — they're about a hundredth the size of our cells. So we're about 100,000 times bigger than our cells, a million times bigger than bacteria, and 10 million times bigger than your average virus!
I would put A. 1,000 if that is your only other option
Using the information recorded by seismographs, scientists learned more about the depth and density of Earth’s layers.
True
False
Answers
Answer:
True
Explanation:
I took the test, and got it right.
HELP ON THIS ONE PLZ!!!!!!!!
Answers
Answer:
Active Transport
Explanation:
Active transport is what is used to help material move through a cell. In this picture it shows the material going through a part in the mitochondria which is like a door that opens to only certain things.
Answer:facilitated diffusion
Explanation: Because you smell like porch
Brainliest to right answer!!
Answers
Answer:Sun
Explanation:
PLEASE HURRY!
What is the energy change taking place when plants make food in the presence of sunlight
Potential energy is transformed into kinetic energy
Kinetic energy is transformed into potential energy
Chemical energy is transformed into radiant energy
Radiant energy is transformed into chemical energy
Answers
Answer: Radiant energy
Explanation:
16:42 How are gross production and net production different? a. Net production is always greater than gross production. b. Net production is always less than gross production. c. Only animals have net production. d. Only plants have net production. Please select the best answer from the choices provided
Answers
Answer:
Explanation:
in my opinion i think its B
Answer:
i can confrim it is b
Explanation:
Most earthquakes occur in the center of continental plates. True False
Answers
Answer:
Explanation:
False and plzz give me brainliest
Answer:
false, they are usually where the plate boundary is
Name 4 greenhouse gases
Answers
Answer:
1 Carbon dioxide.
2 Methane.
3 Nitrous Oxide.
4 Fluorocarbons.
Explanation:
How is an ionic bond different than a covalent bond?
Answers
Answer:
Nonmetals can form different types of bonds depending on their partner atoms. Ionic bonds form when a nonmetal and a metal exchange electrons, while covalent bonds form when electrons are shared between two nonmetals.
Explanation:
After burning fossil fuels, most of the carbon winds up in the:
A. atmosphere
B. ocean
C. rock layers
D. decomposers
Answers
Answer:
a
Explanation:
5
3'
GCGACUAAAUUU
6. What is the sequence of amino acids that will be translated from the mRNA above?
Answers
i forgot how to translate with uracil but i think this is it
How can I get rid of my chapped lips? Everything I do doesn’t really work, I need to exfoliate them but idk how to do that. Is there any way I can stop biting them too? It’s a nervous thing I do when I’m anxious and I need a way to stop doing it thx.
Answers
Answer:
me too, but what i do sometimes is just chew on gum, it helps a lot
Explanation:
Why is scientific knowledge considered durable?
A)It is open to change.
B)It is the absolute truth.
C)It outright rejects old ideas.
D)It does not accept uncertainty
Answers
Answer:
A)It is open to change.
Explanation:
Which is a source of adult stem cells?
bone marrow
amniotic fluid
embryos
gametes
Answers
Bone Marrow
Bone Marrow contains skin cells in it, and it also helps fight diseases... just a bit of info about it.
Answer:
bone marrow :)
Explanation:
What chemical property do phospholipids have that allow them to interact 2 points
with substances like water AND oil? *
Phospholipid molecules are completely nonpolar so they don't interact with polar
compounds
Phospholipid molecules are both polar and nonpolar
Phospholipid molecules are completely polar so they don't interact with nonpolar
compounds
O Phospholipid molecules are small so they are unaffected by water and oil
Answers
Answer:
The Lipid Bilayer
Explanation:
The lipid bilayer has been firmly established as the universal basis for cell-membrane structure. It is easily seen by electron microscopy, although specialized techniques, such as x-ray diffraction and freeze-fracture electron microscopy, are needed to reveal the details of its organization. The bilayer structure is attributable to the special properties of the lipid molecules, which cause them to assemble spontaneously into bilayers even under simple artificial conditions.
1. What is the difference between primary waves (P-waves) and secondary waves (S-waves)?
A. Primary waves are elastic waves that travel faster than secondary waves that are compression waves.
B. Primary waves are compression waves that travel faster than secondary wave with elastic rope-like movement.
C. Primary waves are compression waves that travel slower than the secondary wave with elastic rope-like movement.
D. Primary waves are rolling waves and secondary waves cause horizontal shifting, both move along the Earth's surface.
Answers
Answer:
Explanation:
Primary waves travel faster, move in a push-pull pattern, travel through solids, liquids and gases, and cause less damage due to their smaller size. Secondary waves travel slower, move in an up-and-down pattern, travel only through solids, and cause more damage due to their greater size.
The statement that best describes the difference between primary waves (P-waves) and secondary waves (S-waves) is as follows:
Primary waves are compression waves that travel faster than secondary waves with elastic rope-like movement.Thus, the correct option for this question is B.
What do you mean by Primary waves?Primary wave may be defined as a type of seismic wave that travels faster than secondary waves. They are longitudinal compression waves similar to the movement of a slinky. These are the first types of waves that are effectively detected by a seismograph.
On contrary, secondary waves are those waves that travel slower than Primary waves. These waves are detected at last by a seismograph. These waves travel only through solids.
Therefore, the correct option for this question is B.
To learn more about Seismic waves, refer to the link:
https://brainly.com/question/8553835
#SPJ2
The diagram shows two chromosomes paired up.
Which process is being shown?
sexual reproduction
independent assortment
crossing over
chromosome separation
Answers
The diagram is not provided with the question. However, the answer is based on the matter provided with the question and the best of knowledge.
Answer:
The correct answer is - crossing over.
Explanation:
Crossing over occurs in prophase I or metaphase I of the meiosis type of cell division which takes place in the sex cells during sexual reproduction. During this process cells that have two autologous or correspondent chromosomes pair up together so the exchange of genetic material f non-sister chromatids can take place between correspondent chromosomes and result in a new allelic combination. The process is also known as synapsis as the two chromosomes pair up.
What is the importance of photosynthesis?
Answers
It's not oxygen production. The essential characteristic of photosynthesis is to convert solar power into chemical energy and then keep that chemical power for future use. For the most part, the planet's residing systems are powered by using this process.
Which is an example of an instinct?
A rabbit hides when it observes a predator.
A dog wags its tail when it hears a doorbell ring.
A boy pulls his hand away after touching a hot surface.
A dolphin swims through a hoop during an amusement park show.
Answers
Answer:
A) A rabbit hides when it observes a predator.
Explanation:
Answer:
rabbit
Explanation:
on EDGE 2021
If insulin receptors stopped working. The body would no longer receive the message from insulin. Cells would not take up sugar, blood sugar levels would rise, and death would result.
Answers
Answer:
yes I believe that is correct
the question is: what would happen if cells stopped taking up insulin
What was George H. W. Bush’s “new world order?
Answers
Answer:
“where the rule of law… governs the conduct of nations,” and “in which a credible United Nations can use its peacekeeping role to fulfill the promise and vision of the UN’s founders.”
Explanation:
Theres a video as well :)
HELP! What is the name of this organism (Picture included) Its for extra credit in my biology class
Answers
Answer: the organism is called a Tardigrade
Pls someone help before this is due
Answers
The slope of the line is 3km/10min
3/10 = 0.3, 10/10 = 1 so 0.3km/1min
Debate point on: girl child education is a waste
Answers
Answer:
All you need to know is God so basically yeah this worldly education is a waste
Explanation:
The whole duty is to fear God and keep the Commandments
Active transport moves molecules_____their concentration gradient
Answers
What qualifications do you need to be a research scientist?
A. High school diploma
B. College degree
C. High 10
D. Ph.D
Answers
Explanation:
If a person did not eat for serveral days, which sequence of events would occur
Answers
Answer:
Depends. If you have water you can last for months. If it's only food then first your cells start to eat at you from the inside out, then hallucination occurs, then you will try to eat anything around you no matter what it is, and then you end up falling asleep for a while.
Explanation:
Sorry if that was a creepy explanation hope this helped^^
Folds and faults, extension stress, compression stress, and shear stress are all the result of what?
A. a sign that the end of the world is near
B. the imploding of the earth's crust
C. movement at the tectonic plate boundaries
D. tectonic plate disintegrating
Answers
Answer:
C. movement at the tectonic plate boundaries
Explanation:
Answer:
Hi,
I just learned about this! The answer is Movement at the Tectonic Plate Boundaries!
Explanation:
Some People Know this as Tectonic Stress!
Hope this helps you guys! Have a wonderful rest of you day!
Which of the following forms of water pollution is most associated with mining?
Answers
Awnser: Acid Mine Drainage. Acid Rock Drainage (ARD) is a natural process whereby sulphuric acid is produced when sulphides in rocks are exposed to air and water.
Answer:
the answer is acids and heavy metals
Explanation:
2/3 of the harmful emissions are released from power plants that burn coal to generate electricity.