True | False 1. Vertebrates are animals without a backbone or bony skeleton, such as a starfish.
True | False 2. Omnivores are organisms that rely on plants and animals for survival.
True | False 3. A starfish belongs to a group of aquatic organisms that live in freshwater.
True | False 4. Echinoderms are a group of radially symmetric, spiny-skinned land animals.
True | False 5. A starfish is sensitive to temperature changes in its environment.
True | False 6. Starfish can prevail in both cold and warm marine habitats.
True | False 7. On the top of the central disc part of its body lies the mouth of a starfish.
True | False 8. Regeneration is a basic ability that a starfish demonstrates.
True | False 9. A starfish is a type of fish that feeds on decomposing matter.
True | False 10. These echinoderms typically have a central disc and usually five arms.

I WILL GIVE 100 POINTS!!
You have learned that heat moves from warm areas to cooler ones. In solids, heat is transferred by the physical touching of molecules. This type of heat transfer is called conduction. Some materials, like metal, conduct heat better than other materials. In fluids (liquids and gases), heat is transferred by convection currents caused by differences in density.

MATERIALS
hot water
cold water
metal fork
plastic fork
stick of cold butter
large glass
watch or clock with a second hand
yellow and blue food coloring
playing card
four empty, identical plastic bottles (sports drink bottles work well)
access to a sink

QUESTIONS
Part 1
What type of heat transfer is demonstrated in Part 1?
How long did it take for the butter to melt off of the plastic fork? The metal fork?
How do explain the difference in time between the two forks?
Part 2
What type of heat transfer is demonstrated in Part 2?
What happened when the warm water bottle was placed over the cold water bottle? Why?
What happened when the cold water bottle was placed over the warm water bottle? Why?

1. In the 1820s what did scientists think all dinosaurs really were

can anyone please tell why the bell jar is covered with black cloth in test for carbon dioxide ?​

if humans didn't exist what would the world be right now and the life on it ​

Describe the levels of organization of a human being

Use a Punnett's squares to show a monohybrid cross between pure breeding parents of tall (T) and dwarf (t) pea plants.
The tall trait is dominant and thus is represented by the uppercase letter "T". The dwarf trait is recessive and is represented by
to lowercase letter "t".

which of the following do not contribute to the decaying process
a. sunlight b. microorganism. c. sound. water

​

what force dose dark energy have on the universe?

function of typosole
​

What are the approximate coordinates of the star Rigel?

Which of the following is used to bind the bricks of the wall?


a) glass b) wool c) cement d) steel

A cell placed in a high salt solution would swell because of osmosis.
A. True
B. False

When a plant drinks water the water has enters

Atmosphere
biosphere
geosphere
hydrosphere

Where does mountain formation generally occur?

A. Transform and convergent boundaries

B. Divergent and convergent boundaries

C. Transform boundaries

D. Divergent boundaries

What are two major surfaces on the moon? Which is younger?

explain conservation of matter in nature

Juanita and Alfred hypothesize that a seed will sprout faster if it is warmer. They plant three seeds and water them the same amount. One seed is placed near a heater, one is left at room temperature, and one in a refrigerator. The results are shown in the table below. Do the results support the hypothesis?

Temperature of Seed Days to Sprout
by heater 2 days
room temperature 5 days
in refrigerator did not sprout
A.
No, because the seeds all sprouted at the same time.
B.
Yes, because the cooler seeds sprouted sooner.
C.
Yes, because the warmer seeds sprouted sooner.
D.
No, because the cooler seeds sprouted sooner.

Compare how both prokaryotes and eukaryotes use two of the cell
structures listed and describe the common functions of these structures

Which natural hazard is least likely to affect Florida?
A drought
B wildfire
C rip current
D tsunami

when a piece of zucchini is soaked in salt water, the zucchini loses its firmness. Which process best explains what happens to the zucchini?

Q.which bird don't make its own nest?​

Exam
What do we call information you've
gathered, whether through
experimentation or research?
A. hypothesis
B. data
C. conclusion
D. procedures

which human activity negatively affects the stability of the enviroment

The characteristic of a cell membrane that allows materials to pass troughs it is called ?

A.synthesis
B.polarity
C.permeability
D.catalysis

How does a enzyme work?
Using these words
“Speeding up the.... by lowering the...”

please help! I really need help!

What is NOT a reason hydrogen bonds are significant?

Question 1 options:

Many molecules can have hydrogen bonding occur between them


They are extremely strong compared to ionic or covalent bonds


They are the reason for many of water's amazing properties



They are present in very common molecules found on Earth


Example of adhesion is when water sticks to _______ and cohesion is when water sticks to __________

Question 2 options:

Different molecules or surfaces, other WATER molecules


Solids, liquids


Liquids, Solids


Other WATER molecules, different molecules or surfaces

Hydrophilic substances, such as phosphate groups ___________

Question 3 options:

Fear and run away from water


Will not dissolve in water


Are attracted to hydrogen and other gases


Love to be surrounded by water

Which statement is NOT true?

Question 5 options:

Many sugars are not organic molecules


Sugar is used for a variety of purposes other than energy


Wood and paper are almost entirely sugar


Polysaccharides are carbohydrates

What are the properties of Oxygen Chalcogens and what is it used for?

Polarity of bonds and molecules is determined by the of atoms involved.

temperature of water in morning