Which of the following is a combination of more than on simple machine?
A.Pulley
B.Wedge
C.Scissors
D.Incline
Answer:
D.
Explanation:
Answer:
It is D. Incline
please help me!!
she makes model of a plant cell she viewed using a microscope. The scale is 1 um: 0.5 cm. The student
includes 6 mitochondria in the model.
How many mitochondria do the student see in the real cell?
a.9
b.3
c.6
d.12
Answer: c is 6 and that is the answer
Explanation: I took the test and got a 100
help me pls omg , im stuck
Answer:
b
Explanation:
using distance and can help you identify the position of something
Answer: Length and width
Explanation:
Answer:
Length and width
Explanation:
What is needed in order to create nuclear power? CHECK ALL THAT APPLY.
Uranium
Carbon
Atoms
Oxygen
Molecules
Answer:
uranium and atoms
Explanation:
New Orleans has an altitude at and below sea level, a latitude near the Tropic of Cancer (the equator-zone), is surrounded by water, and has no mountains near by. What would you expect the climate to be?
Answer:
Rainy, sunny and humid.
Explanation:
Match the term with the definition.
Group of answer choices
Compressibility
Flammability
Heat of combustion
Toxicity
A) How easily can a substance be set on fire
B) Measure of how much heat is given off when a substance is burned
C) The ability of a substance to damage or harm an organism
D) Measure of how much the volume of matter can decrease under pressure
whats the order?
Answer:
here are your answers
Explanation:
compressibility ( D )
flammability( A )
heat of combustion ( B )
toxicity ( C )
Human activities can have more affect on the environment than you may think. When a dam is built, what are some of the impacts it will have on the surrounding environment?
Practice
Answer in at least 2 complete sentences.
Answer:
When a dam is built, the rest of the lake will begin to drought and remove moisture for the wildlife. Making the wildlife adapt, and in severe cases, become endangered.
Pollen is transferred from the stamen of one flower to the stigma of another. What has occurred?
How do substances move across the cell membrane?
Answer:
The plasma membrane by diffusion
Explanation:
Materials move within the cell's cytosol by diffusion, and certain materials move through the plasma membrane by diffusion
im literally gonna cry . what is this
Look at the table that shows values for Coast Guard search and rescue operations. Write an evaluation of the success of the Coast Guard’s efforts. Be sure to support your answer with evidence from the data table.
Answer:stats are higher than before
Explanation: its their evaluation because the stats are higher than beofre
PLEASE HELP ON MY FINAL
Which of the following factors have been most influential in allowing manned space exploration?
A- design of rockets capable of escaping earth’s gravitational pull
B- ability to turn food into pills and powders so they can be eaten in space
C- development on powerful batteries which provide light for astronauts to use in the darkness of space
D- creation of atmospheric systems that provide oxygen while absorbing carbon dioxide
Answer:
The answer is D- creation of atmospheric systems that provide oxygen while absorbing carbon dioxide
Explanation:
By using elimination of choice that answer seems the most accurate.
How are the volvox, euglena, paramecium, and amoeba similar and different in how they move, and eat?
Answer:
Both can hunt for their food (heterotrophs), but euglena can also make their own food (autotroph) with its chloroplasts. Amoeba have pseudopods to move/eat, but euglena have flagella to move. How are euglena and paramecium similar and different? ... Both also use flagella to move, but volvox move together in colonies.
Explanation:
Answer: wattskennedy is right
Explanation:
Which of the following elements does NOT need to be diatomic to exist in nature?
A. Hydrogen
B. Oxygen
C. Carbon
D. Nitrogen
Help me plzz can't fail this
due today
Answer:
I'm lazy so I won't explain
1. Groups are the vertical lines on the periodic table
2. Periods are the horizontal lines on the periodic table
3. *make sure to always capitalize the 1st letter, and lowercase the 2nd
*Always use print letters
a. Mg b. K c. Fe d. Cu e. Xe f. Pt
4. a. Carbon b. Lead c. Arsenic d. Osmium e. Krypton f. Strontium
5. a. 1 b. 4 c. 7 d. 14 e. 5 f. 5
6. a. 16 b. 2 c. 1 d. 12 e. 17 f. 8
Hope this helps u
When the boat is placed on the scale, how does its weight compare to the weight of the water it displaced?
Answer: It'll be lighter than when it is put on the water.
Explanation: Cause when a boat needs to move, it usually takes water into the engine, and then propulses it bk out.
Which type of variable is kept the same throughout an experiment?
Constant variable
Measured variable
Outcome variable
Test variable
Answer:
Constant variable.
What does the conversation of mass say about the amount of atoms in the reactants compared to the products?
Answer:
the mass of any one element at the beginning of a reaction will equal the mass of that element at the end of the reaction. If we account for all reactants and products in a chemical reaction, the total mass will be the same at any point in time in any closed system.
Answer:
[tex]\boxed {\boxed {\sf Atoms \ in \ reactants \ = atoms \ in \ products}}[/tex]
Explanation:
The Law of Conservation of Mass states that mass cannot be created or destroyed.
In a chemical reaction, this means the mass of the reactants (substances going in and being changed) must equal the mass of the products (new substances from the reaction).
In addition, the amount of atoms must stay the same. The atoms can and will reconfigure to form different compounds, but the number of atoms stays the same.
SCIENCE! PLZ HELP FAST !! URGENT!!
What happens to potential energy when you move against the magnetic force?
Answer: The field produces a repulsive force pushing them apart. They repel each other. In this case, the closer they are, the higher their potential energy will be. If allowed to move, they may move as far apart as possible or one will swing around to change its orientation.
Explanation:
Anyone (cool, funny, middle school) wanna start a conversation?
Answer:
sure
Explanation:
what's up
Answer:
Im down, Im in 7th
Explanation:
sure hi lol
Which one would charge faster?
If density is calculated by mass divided by volume and the mass increases, what would happen to the density of an object?
Would it increase or decrease?
I need to write an essay on the help benefits of plants! You do not need to write an entire essay, but I would like points and website links! Thanks.
How do matter and energy move through an ecosystem?
My scientific explanation is:
Your answer should include at least 6 complete sentences to explain the claim, evidence and reasoning.
Be sure to check your grammar and spelling.
a sample substance has the chemical formula: H2CO3 , one molecule of the sample contains __ ????
Answer:
1,6,8
Explanation:
Periodic Table- H=1.C=6,O=8
Hydrogen is H, Carbon is C, Oxygen is O
Answer:
H=hydrogen
C=carbon
O=oxygen
H- 1
C- 6
o- 8
Explanation:
Does anyone know the Lab Report of acids and bases???? HELP PLZ WILL GIVE BRAINLIEST WHOEVER HELPS PLZ
Answer:
Litmus is a natural acid-base indicator extracted from a type of lichen. If you have red and blue litmus paper, you can test different solutions for whether they are acids or bases. Blue litmus paper turns red when a solution is acidic; red litmus paper turns blue in basic solutions
Explanation: Hope this helped
what is the level of organization in living things
I NEED HELP ASAP DON'T JUST ANSWER FOR POINTS OR YOU WILL GET REPORTED!
How many protons, neutrons, and electrons does potassium's neutral atom have?
Answer:
The number of neutrons is entirely dependent on the Mass number of the particular atom. The standard mass for potassium is 39.
Potassium is element number 19, so it has 19 protons and 19 electrons in the neutral atom. It has therefore 39-19 = 20 Neutrons.
Explanation:
Answer:
Number of Protons 19
Explanation:
Number of Neutrons 20
Number of Electrons 19
Melting Point 63.65° C
Magnesium (Mg) has two electrons in its outermost energy level.
Oxygen (O) has six. How can a Mg atom bond with an O atom?