PLZ HELP ME THIS IS DUE TODAY
Which organelle aids in the production and movement of proteins and other materials through the cell?

lysosome
endoplasmic reticulum
cytoplasm
cell wall

Answer:

endoplasmic reticulum

Explanation:

I just took a test that had this question and this was the answer.

The two factors that cause seasons are __________ and ___________.


PLZ HURRY

Label the diagram.Please actually say the answer!

Why do chemical properties change?

PLEASE HELP WILL GIVE BRAINLIEST

If two oceanic plates move towards each other at a convergent boundary, then_____ may occur.

earthquakes
faults
ocean formation
mountains
volcanoes
island chains
seafloor spreading

pick two events

How would you compare Uranus (a Jovian planet) to Earth (a terrestrial planet)?
Earth is larger than Uranus.
Uranus is larger than Earth.
They are the same size.

Define reactant.
Define product.
Define precipitate.

Energy and Temperature Activity Worksheet
Instructions: Follow the directions below to complete part one and part two of this activity. You will submit both parts once completed.



Note: You are not performing the experiment—only designing it.

Introduction
The purpose of this assignment is to design an experiment that another student could follow and use to test whether land or water heats faster.

You will complete the following:

Part One: Experimental Design. Plan out an experiment by answering the guiding questions below.
Part Two: Design a Lab Report. Write the outline of a lab report so that another student could complete the experiment by using the materials listed below:
sand
water
heat lamps
thermometers
cups

Part One: Experimental Design
In this section, you will think about what type of experiment to set up. Remember, you are NOT completing the experiment, only designing it. If you want to review the scientific method first, use this tutorial. Use these guiding questions to help you design the experiment. Answer each question below:

What hypothesis will the experiment test?
What are the variables?
What purpose would the sand serve?
What purpose would the water serve?
What purpose would the heat lamps serve?
What purpose would the thermometers use?
How can you use these materials to test whether land or water heats faster?
How would you compare whether land or water heats faster?
Within a 24-hour period, at what three points should the temperature be taken? Why?
What would an effective conclusion need to include?

Part Two: Design a Lab Report
Once you have designed the experiment, you must write out the instructions so another student could act as the experimenter and follow them. Fill in the following elements of this lab report as described in italics below.

Lab Report
Objective
Explain the purpose of your lab.


Procedure
List the experiment procedures. Some steps have been filled in for you. You may need to adjust the numbers to match the steps you decide on.

Identify the variables.
Write out your hypothesis in an if/then format.
Gather your materials.
Analyze the data.
Write your conclusion.

Data Analysis
Label a data table so that the experimenter can record observations for the sand and water temperatures at various points.


Conclusion
Explain what the experimenter should include in this section to show how the data proved the hypothesis.

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Pedigree: Amoeba sisters ( please help asap)
The Roman Numerals represent _____________.

_____________ ______________ ______________, if present, will lead to the expression of dominant traits. Recessive alleles only are expressed if dominant alleles are not ______________.

Sixth-grade students conduct a laboratory experiment investigating the flow of thermal energy. They place a sealed plastic bag filled with water at 60°C into a beaker filled with an equal amount of water at 80°C. They then put the beaker with the plastic bag in an insulated container.

Based on the flow pattern of thermal energy, what can students predict will most likely happen in about an hour?



A. Thermal energy will flow from the cooler water in the plastic bag to the warmer water in the beaker so that the temperature of the water in the beaker will be 60°C and the temperature of the water in the plastic bag will be 80°C.


B. Thermal energy will flow from the warmer water in the beaker to the cooler water in the plastic bag so that the temperature of the water in the plastic bag will be 80°C and temperature of the water in the beaker will be 60°C.


C. Thermal energy will flow from the warmer water in the beaker to the cooler water in the plastic bag so that the temperature of the water in both the plastic bag and the beaker will be 70°C.


D. Thermal energy will flow from the cooler water in the plastic bag to the warmer water in the beaker so that the temperature of the water in both the beaker and the plastic bag will be 70°C.

Rosa eats a peanut butter sandwich for lunch. Peanut butter contains a lot of protein, and bread is mostly starch. Rosa plans to go for a run later this afternoon. Rosa is breathing normally. How do Rosa’s body systems work together to get the molecules she needs into her cells? (Sentence starter: Rosa's body systems work together by...

PLEASE HELP ME ASAP!!! I WILL GIVE BRAINLIEST!!!

A solid sample that has a mass of 2.3 grams. The solid sample has a volume of 2.0 cm. What is the density of this sample?

can someone help this is due in 20 mins :/

help me ples HELP HELP HELP HELP HELP
the vocab is autotroph, heterotroph, fermentation, mitosis, cytokinesis, photosynthesis, Cellular respiration, cell cycle, and interphase,

Why do chemical properties change?
What do the prefixes exo- and endo- mean?
What happens to heat in an exothermic reaction?
What happens to heat in an endothermic reaction?

What is a small ball that orbits around a planet.

There's no science section sorry

A 2 kg toy car and a 5 kg toy car are pushed with an equal amount of force. Which toy car will have the least acceleration?

Please answer the following essay question with 5-7 sentences.
How is a chemical change different from a physical change?

By which mechanism does older oceanic rock move at a ridge?

A) New molten material rises and moves the rock

B) The ridge subducts and moves the rock

C) Continents drift and move the rock.

D) Magnetic forces move the rock.

1.Which of the following has the fewest number of total atoms?Immersive Reader
(1 Point)
C₂H₆O
CH₃CH₂Br
C₄H₁₀O
2.In which of these compounds are there twice as many hydrogen atoms as oxygen atoms?
(1 Point)
H₂SO₄
HBrO₃
H₂O
3.How many oxygen atoms are there in the products of this equation?

C₆H₁₂O₆ + 6 O₂ → 6 CO₂ + 6 H₂O
(1 Point)
36
18
8
13
4.Ammonium nitrate, NH₄NO₃ , is a chemical used to fertilize soil. How many total atoms are represented in this chemical formula?
(1 Point)
9
8
14
7

What kind of group 1 atoms are the most reactive? a. Small atoms c. Atoms with the most electrons in the valence level b. Large atoms d. Atoms at the top of the periodic table

help!!!!!! pls ima fail this whole quater

Which describes a meteoroid? (select all that apply)
They are larger than the Sun.
Many are found in the asteroid belt.
Many are found between the Sun and Mercury.
They revolve around the Sun.

What are the characteristics of Mercury? (Select all that apply.)
Mercury has less gravity than the Earth.
Mercury has many rings visible from Earth.
Mercury’s year is similar to that of Earth.
Mercury is the closest planet to the Sun.

so like i need help pls!!!!!!!!!

What is one difference between a meteoroid and an asteroid?
Asteroids revolve around the Sun just like planets and meteoroids do not.
Asteroids are smaller than meteoroids.
Meteoroids revolve around the Sun just like planets and asteroids do not.
Meteoroids are smaller than asteroids.

Measuring Physical Properties Lab Report
Instructions: In the Physical Properties lab, you will test the physical properties of different building materials in order to pick the appropriate materials for a new home in Tiny World. Record your observations and test measurements in the lab report below. You will submit your completed report.

Name and Title:
Include your name, instructor's name, date, and name of lab.


Objective(s):
In your own words, what was the purpose of this lab?


Hypothesis:
In this section, include the if/then statements you developed during your lab activity. These statements reflect your predicted outcomes for the experiment.


Procedure:
The materials and procedures are listed in your virtual lab. You do not need to repeat them here. However, you should note if you experienced any errors or other factors that might affect your outcome.

Using the summary questions, clearly define the dependent and independent variables of the experiment.


Data:
Record the results of each of your physical property tests in the table below.

Wood Clay Brick Iron Aluminum Copper Nickel
Flexibility
(?/10)
Magnetism
(number of paper clips)
Thermal Conductivity
(W/(m·K))
Electrical Conductivity
(x107 S/m)
Density
(g/cm3)

Conclusion:
Your conclusion will include a summary of the lab results and an interpretation of the results. Please answer all questions in complete sentences using your own words.

Using two to three sentences, summarize what you investigated and observed in this lab.
What building material did you use to build your house? Did your results support or fail to support your hypotheses?
What were the densities of the materials you chose for the walls and floor for the home in Tiny World? Why do you think a building material's density is important when building homes or architectural structures?
Why wouldn’t you choose wood or aluminum for the latches on your house?
Which material has the highest thermal conductivity? Which material has the highest electrical conductivity? Explain why thermal and electrical conductivity is so high with this material.
Think about where you live now or where you have lived in the past; use complete sentences to describe this environment and the weather. What building materials do you believe would work well to build a home in that area? Explain why you chose these materials.

A ____________ is a large body that moves around a star?


PLEASE FILL IN THE BLANK!!!!!
I NEED HELP!!!!!

sorry there's no science section

What happens to elements and compounds that are dissolved in a solution when the water evaporates?

They become liquid.
They crystallize.
They disappear.
They gain special properties.