Answer:
the answer is C (compound)
Do both animal and plant cells have chloroplasts? Explain why or why not. (1 point)
A
Yes. Chloroplasts transport important molecules for the cell to use. All cells need to be able to harness energy for food and chloroplasts get their name from chlorophyll, which is a green pigment used for photosynthesis giving plants their food. They are named chloroplasts because they were discovered in plant cells before they were discovered in animal cells.
B
No, not all. Chloroplasts contain a green pigment called chlorophyll. All plant cells have chloroplasts, but only some animal cells, such as green frogs, have chloroplasts.
C
Yes. Chloroplasts contain a green pigment called chlorophyll. All plant cells have chloroplasts, but only some animal cells, such as green frogs, have chloroplasts.
D
No. Chloroplasts contain chlorophyll, which plants use to absorb light energy as part of photosynthesis. Animals do not perform photosynthesis, so they do not have chloroplasts.
Dose anyone understand this I need help can anyone help me on this please !
Copper carbonate decomposes to make _____________ oxide and _____________ dioxide
Answer:
Copper carbonate decomposes to copper oxide and carbon dioxide
Explanation:
Which of the following is an electrolyte?
a. BaSO4
b. CaS
c. AlPO4
d. SrCrO4
Answer:
A
Explanation:
Identify the element below
Answer:
Beryllium
Explanation:
Which of the following is NOT a molecular formula?
F2
Na2SO4
H2O
CO2
Answer:
Hello there! :) All of these are molecular formulas but F2.
Explanation:
F2 goes by the name flourine and is not F2 in it's chemical makeup. Na2SO4 is also called Sodium Sulfate and is a molecular formula. Everyone knows what H2O is, the molecular formula for water and lastly CO2 is carbon dioxide. Hope this helps!
What is the basic level of an ecosystem?
population, community, and biosphere.
10
Which type of species can respond better to changes in the environment?
A generalized species
B specialized species
Cendangered species
D extinct species
Answer:
Endangered species .............................
Gloria is making a model of an atom. She uses three different colors to represent the three basic particles that make up the atom. Which particles should she display in the nucleus of the atom?
Group of answer choices
electrons and protons
protons and neutrons
electrons only
neutrons only
Answer:
protons and neutrons
Explanation:
The nucleus of the atom contains protons and neutrons. The electrons of the atom orbit the nucleus.
what is the mass number of an atom which contains 21 electrons,21 protons and 24 neutrons
Answer:
The atomic mass number is 45.
Hope this helps
hey guys, i found this marble outside and covered in grease. so i took it in to wash it. can you please tell me what it is made of...plz
Answer:
I can't see the marble so I don't know
5. Which coefficients correctly balance the formula equation
Zn(OH)2 + CH3COOH → Zn(CH3COO)2 + H2O?
a. 1, 2, 1, 1
b. 2, 1, 2, 1
b. 1, 2, 1, 2
d. 2, 1, 1, 2
What is
78.432 miles x 322.3 miles
What act of congress provides funds to improve forensic labs and communication
among law enforcement agencies?
DNA Creeper Act
DNA of Criminals Act
DNA Identification Act
DNA Profiling Act
Answer:
i think dna crepper act
Explanation:
if wrong then sry
Two students are having a tug of war. The flag on the rope begins at point Y. team A pulls to the left with force of 120 N. Team B pulls to the right with force of 160 N. Based on these forces, which letter shows the likely movement of the flag?
Choices:
A: W
B: X
C: Y
D: Z
(Please help!!) 20 points
What are the % composition for Carbon and Hydrogen in C3H6?
Answer:
Carbon=about 85.13%
Hydrogen=about 14.26%
Explanation:
Percent composition= (molar mass of element x amount of it)/Molar mass x100
C= 12x3/42.08 x100=about 85.13
H=6x1/42.08 =about 14.26
How the size of the sun compares to the sizes of the other stars
Answer:
the sun is pretty smol compared to others
Explanation:
Identifying Variables in the Effect of Type of Material on
Absorption Experiment
Answer the questions using the drop-down menus.
Which is the independent variable in this experiment?
Which is the dependent variable in this experiment?
Which is a controlled variable in this experiment?
In Absorption Experiment,
Water location is the independent variable in this experiment.
Room Temperature in the material is dependent variable in this experiment.
Type of a material is a controlled variable in this experiment.
What is Absorption Experiment ?Absorption experiment is nothing but the experiment of absorption of water in a material (sponge).
Experiment requires vessel, water and sponge.
Processor - take a vessel, pour water into it and dip sponge. take out the sponge. After taking of out sponge, water appears to be decreased from the vessel and sponge gets heavier. When we squeeze the the sponge, water drops down. It is because of water is absorbed by the spouge.
There are number of pores in the sponge, which absorbs the water.
Water location is the independent variable.
In this experiment Room Temperature is dependent variable in this experiment rate of absorption increases with increase in the temperature. decrease in the temperature cause to solidify the water. Type of a material is a controlled variable, we can change type of the material.
To know more about variables :
brainly.com/question/14289293
#SPJ7.
is this won true or false In Earth’s atmosphere, cold air rises and warm air rises. i think it is true becouse of Earth’s atmosphere is cold and hot
Answer:
False
Explanation:
Heat rises, but cold air doesn't. Cold air is heavier than warm air is.
What causes adaptions to occur ?
Factors that influence general adaptation syndrome include that of a person’s health, nutrition, sex, ages, race, socioeconomic status, and genetics. These are factors that are either can precipitate a different reaction, while others are modifiable and unmodifiable traits.
In biology, adaptation has 3 related meanings. Firstly, it is the dynamic evolutionary process that fits organisms to their environment, enhancing their evolutionary fitness. Secondly, it is a state reached by the population during that process. Thirdly, it is a phenotypic trait or adaptive trait, with a functional role in each organism, that is maintained and has evolved through natural selection. Historically, adaptation has been described from the time of the ancient Greek philosophers such as Empedocles and Aristotle. In 18th and 19th century natural theology, adaptation was taken as evidence for the existence of a deity. Charles Darwin proposed instead that it was explained by natural selection. Adaptation is related to biological fitness, which governs the rate of evolution as measured by a change in gene frequencies. Often, two or more species co-adapt and co-evolve as they develop adaptations that interlock with those of the other species, such as with flowering plants and pollinating insects. In mimicry, species evolve to resemble other species; in Müllerian mimicry, this is a mutually beneficial co-evolution as each of a group of strongly defended species (such as wasps able to sting) come to advertise their defenses in the same way. Features evolved for one purpose may be co-opted for a different one, as when the insulating feathers of dinosaurs were co-opted for bird flight. Adaptation is a major topic in the philosophy of biology, as it concerns function and purpose (teleology). Some biologists try to avoid terms that imply purpose in adaptation, not least because it suggests a deity's intentions, but others note that adaptation is necessarily purposeful.
Which one of the compounds below is most likely to be ionic?
A-aluminum chloride
B-nitrogen dioxide
C-carbon tetrachloride
D-chlorine dioxide
Answer:
A
Explanation:
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Need help Please ASAP
can someone help me with these?
Answer: 6. The pressure inside the baloon will be 6.8 atm
7. The final volume is 21.5L at tempearture of 388 K.
Explanation:
Boyle's Law: This law states that pressure is inversely proportional to the volume of the gas at constant temperature and number of moles.
[tex]P\propto \frac{1}{V}[/tex] (At constant temperature and number of moles)
[tex]P_1V_1=P_2V_2[/tex]
where,
[tex]P_1[/tex] = initial pressure of gas = 3.5 atm
= final pressure of gas = ?
= initial volume of gas = 32 L
[tex]V_2[/tex] = final volume of gas = 19.3 L
[tex]3.5\times 32=P_2\times 19.3[/tex]
[tex]P_2=5.8atm[/tex]
Therefore, the pressure inside the baloon will be 5.8 atm
7. To calculate the final volume of the system, we use the equation given by Charles' Law. This law states that volume of the gas is directly proportional to the temperature of the gas at constant pressure.
Mathematically,
[tex]\frac{V_1}{T_1}=\frac{V_2}{T_2}[/tex]
where,
[tex]V_1\text{ and }T_1[/tex] are the initial volume and temperature of the gas.
[tex]V_2\text{ and }T_2[/tex] are the final volume and temperature of the gas.
We are given:
[tex]V_1=13L\\T_1=235K\\V_2=?\\T_2=388K[/tex]
Putting values in above equation, we get:
[tex]\frac{13L}{235K}=\frac{V_2}{388K}\\\\V_2=21.5L[/tex]
Thus it will occupy 21.5L at tempearture of 388 K.
the molecular formula of a compound is C7H14O7. what is the empirical formula
How much energy is required to raise the temperature of 3 kg of iron from 20°
C to 25°C? Use the table below and this equation: Q = mcAT.
Answer:
Option C (6750 J) is the appropriate response.
Explanation:
The given values are:
Mass of iron,
m = 3 kg
Specific heat capacity,
[tex]c_A[/tex] = 0.450
Temperature,
T = [tex]25-20[/tex]
= [tex]5^{\circ}C[/tex]
Now,
⇒ [tex]Q=mc_A T[/tex]
On substituting the values, we get
⇒ [tex]=3\times 0.450\times 5[/tex]
⇒ [tex]=6.75[/tex]
i.e,
⇒ [tex]=6750 \ J[/tex]
_C4H6O3 + _H2O −−→ _C2H4O2
A) 1, 1, 2
B) 2, 1, 1
C) 2, 1, 2
D) 2, 2, 1
Explanation:
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Plants grow in many different shapes and sizes. Much of their shape depends on an internal structure that is composed of carbon-containing molecules such as cellulose and lignin. Plants that have a strong internal structure can grow larger than other plants because their structure can support their size.
Plants obtain the majority of the carbon necessary for building these structural molecules from —
F
air
G
microorganisms
H
soil
J
water
Answer:
F=Air
Explanation:
Because I took the test hope it helps
Do you think these fish are an example of natural selection among two populations of the same species
If 1.0 mole of C8H18 are available to completely react
with enough O2, how many moles of H20 can be produced?
Answer: 1 mol C8H18 produces 9 mol H2O
Explanation: reaction : C8H18 + 12.5 O2 ⇒ 8 CO2 + 9 H2O
Which pod would have a greater change in velocity if you exerted the same strength force, a less massive pod or a more massive pod