HELP 5TH GRADE SCIENCE What physical structure has spines that protect the plant from predators?
Flower
Pistil
Outer covering
Reproductive organs
Answer: 3 - outer covering
Explanation:
What physical structure has spines that protect the plant from predators?
1)Flower
2)Pistil
3)Outer covering
4)Reproductive organs
Outer covering is the physical structure has spines that protect the plant from predators. Therefore, option C is correct.
What do you mean by the predators ?Predators are living things that go for and kill prey. The term "prey" refers to the living things that predators eat. Both carnivores and omnivores may be predators. Predators include lions, tigers, sharks, and snakes.
Predation can be classified into four categories: carnivory, herbivory, parasitism, and mutualism. Depending on whether the victim dies, each sort of predation may be classed.
Plants are shielded against parasite invasion by their epidermis. It creates an external covering for plant organs that are constantly in contact with the outside world. This epidermis is further protected by a cuticle, which is a layer of fatty material.
Thus, option C is correct.
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At a higher temperature, K = 1.8 × 105. Placing the equilibrium mixture in an ice bath (thus lowering the temperature) will
The question is incomplete, the complete question is;
1. Given: 2A(g) <-> 2B(g) + C(g). At a particular temperature, K = 1.6x104.
At a higher temperature, K = 1.8x10-5. Placing the equilibrium mixture in an ice bath (thus lowering the temperature) will...
cause [A] to increase
cause [B] to increase
gave no effect
cannot be determined
Answer:
cause [B] to increase
Explanation:
We have to have it behind our minds that; for an exothermic reaction, when the temperature is increased, the value of the equilibrium constant decreases. On the other hand, for an endothermic reaction, increasing the temperature increases the value of the equilibrium constant.
In this particular case, increasing the temperature decreased the equilibrium constant from K = 1.6x104 to K = 1.8x10-5 meaning that the equilibrium constant decreased with increase in temperature. This means that the reaction is exothermic and a decrease in temperature will favour the forward reaction hence more B is produced.
Rod cells work best in dim light and enable you to see black, white, and shades of gray.
true
or
not
what is chemical reaction
Chemical reaction, a process in which one or more substances, the reactants, are converted to one or more different substances, the products. Substances are either chemical elements or compounds. A chemical reaction rearranges the constituent atoms of the reactants to create different substances as products.
Described the test for carbon dioxide. Give the result of the test.
What is an analogy for electronegativity?
Answer: I have no idea but if your in chemistry could you figure this out for me please If 3.25 moles of Ar occupies 100.L at a certain temperature and pressure, what volume does 14.15 moles of Ar occupy?
Explanation:
Answer:
Electronegativity is like a tug of war game between two atoms. If you have one person on the side of the rope that is stronger than the other person, then that stronger person will tug harder pulling the other person in their direction.
The vat is made of metal. Why would it matter that the material from which the vat is made is metal ?
Answer:
Due its storing and holding ability.
Explanation:
It matter that the material from which the vat is made is metal because this vat is used for storing and holding liquids. Vat is a large container or tank that is used for storing or holding liquids in industrial sector. This vat is made of metal which increases its strength and durability. If the vat is made of wood or plastic so it can't hold huge amount of liquid or chemical due to its weak material so that's why it matters that the substance from which the vat is made is metal or not.
What does a chemical reaction rate measure?
Answer:
it measures how much reactant is consumed and how much product is made
. Round to the nearest whole number
.Do not include units in your answer, just the number
1kg=2.2lb
Answer:
21091mg of aspirin the person need to consume
Explanation:
To solve this question we must find the mass of the person in kg. Knowing the lethal dose for aspirin is 400mg/kg of person, we can find the amount of aspirin that the person need to consume to get a lethal dose:
Mass person:
116lb * (1kg / 2.2lb) = 52.7kg
Lethal dose:
52.7kg * (400mg / kg) =
21091mg of aspirin the person need to consumeHow does sodium become a negative ion of neon
what is the compound name for (NH4)2SO4
Answer:
Diazanium sulfate is the correct answer.
Explanation:
Hope this helped Mark BRAINLIEST!!
Which equation is derived from the combined gas law?
Answer:
First one. V1/T1=V2/T2
If the pressure is the same.
Explanation:
Answer:
A on edge2021
In a halocarbon substituent are-
1)metals
2)non-metals
3)Halogens
4)noble gases
Answer:
Hey The answer is Halogens
What is the molar solubility of lead phosphate in water in moles?
Please help?!
Answer:
Now, the molar solubility of lead(II) phosphate in water is said to be equal to 6.2⋅10−12mol L−1 . This means that in one liter of water, presumably at room temperature, you can only hope to dissolve 6.2⋅10−12 moles of lead(II) phosphate.
Explanation:
Hope this helps!!
A 0.45g sample of mineral ore is analyzed for chromium and found to contain 0.560mg Cr2O3. Express the concentration of Cr2O3 in the sample as a.Percent b) parts per thousand (pot) c) parts per million (ppm) d) parts per billion (ppb)
Question 1 0 Which of the following numerical expressions gives the number of moles in 5.0 g of CaO?
A) 5.0 g X 56 g/mol
B) 5.0 g / 56 g/mol
C) 56 g/mol / 5.0 g
D) 1/5.0 g X 1/56 g/mol
Answer: A
Explanation:
5.0 g / 56 g/mol is the numerical expression that gives the number of moles in 5.0 g of CaO.
HOW TO FIND NUMBER OF MOLES:
The number of moles in a substance can be calculated by dividing the mass of that substance in grams by its molar mass in grams/moles. Number of moles = mass ÷ molar massIn this question, 5.0g of calcium oxide (CaO) was given. The molar mass of CaO is as follows:CaO = 40g/mol + 16g/mol = 56g/mol
Number of moles = 5.0g ÷ 56g/mol
Therefore, 5.0 g / 56 g/mol is the numerical expression that gives the number of moles in 5.0 g of CaO.
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Which of the following gases in Earth's atmosphere would you expect to find as molecules and which as individual atoms? Explain
a.Nitrogen
b.Oxygen
c.Argon
Answer: argon
Explanation:
When water reacts with potassium metal the hydrogen produced ignites explosively on the surface of water .What cause the ignition
Answer:
Pottasium reacts with water vigorously and the reation is exothermic. The heat released causes the hydrogen released to ignite
Explanation:
Calculate mass (in grams) of sodium in 8.5 g of NaCl (table salt).
Answer: I go search some information
Explanation:I come back with a answer
Which of the atoms shown has an atomic number of 4?
Answer: B
Explanation: Because it has 4 things to up down right and left
What is the function of the pistil and stamen of a plant?
To allow the plant to reproduce.
They provide support for the plant.
They protect the plant from the weather.
The protect the plant from predators.
Answer:
the answer is A
Explanation:
Hopefully u get the answer right
Answer:
A
Explanation:
give me thanks not stars
1. If we used 0.0100 moles of K2CO3, how many moles of SrCO3 can be expected to form?
Answer:
0.01 moles of SrCO₃
Explanation:
In this excersise we need to propose the reaction:
K₂CO₃ + Sr(NO₃)₂ → 2KNO₃ + SrCO₃
As we only have data about the potassium carbonate we assume the strontium nitrite as the excess reactant.
1 mol of K₂CO₃ react to 1 mol of Sr(NO₃)₂ in order to produce 2 moles of potassium nitrite and 1 mol of strontium carbonate.
Ratio is 1:1. In conclussion,
0.01 mol of K₂CO₃ must produce 0.01 moles of SrCO₃
How many moles are 4.20 x 1025 atoms of Ca?
Answer:
4305
Explanation:
please mark this answer as brianliest
in ________ only one parent organism produces offspring
I believe the answer should be Asexual Reproduction.
Which material would take the longest to cool off once heated?
Liquid water
Lead
Ice
Copper
Answer Liquid water
Explanation: I'm sure its that answer
What is happening right now to the Arctic ice cap?
I give Brainliest!
Answer:
I'm pretty sure a lot of them are melting because of global warming
Describe some of the solutions that engineers might propose for maximizing the percent yield of hydrogen from discarded wood.
A possible solution for maximizing the percentage of hydrogen in discarded wood is to design a machine that can collect more effectively all the gases and separate hydrogen from other gases.
How do people produce hydrogen using discarded wood?Discarded wood and other products can still produce important elements nitrogen, methane, and hydrogen. This is possible through combustion that releases these elements in a gas.
What is the limitation of this method?This is a new method and it is still not completely developed. Due to this, the equipment is not as efficient as one would like, for example, all gases are initially collected together but this is a problem if only one gas is needed.
Based on this, a potential solution would be to create a machine that is more efficient in collecting and separating the gases.
Learn more about hydrogen in: https://brainly.com/question/24661434
How many grams are in 1.7 moles of CO2?
Answer:
748.1615 grams
Explanation:
How does Sodium turns into another element? By the Nuclear Fusion?
Answer:If an atom loses or gains a proton, it becomes a new element. For example, if a sodium atom loses a proton, it would become a negative ion of neon. ... In nuclear reactions, like nuclear fusion, the electrons play minor roles and it is the nucleons that interact to create new elements
Explanation:
Answer:
If an atom loses or gains a proton, it becomes a new element. For example, if a sodium atom loses a proton, it would become a negative ion of neon. ... In nuclear reactions, like nuclear fusion, the electrons play minor roles and it is the nucleons that interact to create new elements.
Explanation:
hope this helps!
write four facts of cross breeding plants
Answer:
Plant breeding
Plant breeding is the science of changing the traits of plants in order to produce desired characteristics. It has been used to improve the quality of nutrition in products for humans and animals.
Explanation: