Answer: 75 C
Explanation:
The onion cells have lysosomes, and the cheek cells do not.
The cheek cells have larger vacuoles than the onion cells.
The cheek cells have a nucleus, and the onion cells do not.
The onion cells have a cell wall, and the cheek cells do not.
Answer:The onion cell have a cell wall and the cheeks do not
Explanation: I took the test and I love the topic. Hope it helps!!!
Answer:
It is an exothermic reaction.
Explanation:
Why? Since the kJ is added to the product side, we know that this is an exothermic reaction since it is releasing heat. Endothermic reactions absorb heat and thus it would be represented on the products side.
To represent this exothermic reaction we would draw a curve starting mid graph then it goes up and then dropsdown. In other words, it looks downhill since it's releasing heat wheras an edothermic rxn, it is gaining heat, thus it looks like it is going upwards.
infrared, ultraviolet, visible
B.
visible, infrared, ultraviolet
C.
ultraviolet, visible, infrared
D.
infrared, visible, ultraviolet
Answer;
D.
infrared, visible, ultraviolet
Explanation;
Electromagnetic waves are types of waves that do not require a material medium for transmission. An electromagnetic spectrum arranges these electromagnetic waves in the order of increasing frequency and decreasing wavelength.
The spectrum consists of , Radio waves, microwaves, infrared, visible light, UV light, X-rays and Gamma rays; arranged in order of decreasing wavelength and increasing frequency.
Radio waves have the longest wavelength but the lowest frequency, while gamma rays have the lowest wavelength but the largest frequency.
Answer: D. infrared, visible, ultraviolet
Explanation:
just took the test
Answer:
Formally stated, Newton's third law is: For every action, there is an equal and opposite reaction. The statement means that in every interaction, there is a pair of forces acting on the two interacting objects. The size of the forces on the first object equals the size of the force on the second object.
Answer:
ExplanatioHydrogen cannot exist in free state as hydrogen needs an electron to attain stability. If an element does not attain stability it cannot exist on its own. In Sun there are large number hydrogen atoms and helium atoms present this creates a lot of energy and nuclear fusions are occured. Gases that attain stability can normally exist on their own. E.g. Argon, Neon, Helium, Krypton and Xenon. Gases that cannot exist on their own are:
H2
O2
N2
Hope it helped a little......
b. 0.306g
c. 3.26g
d. 765mL
Answer:
Option A. 765g
Explanation:
From the question given, we obtained the following:
Density = 15.3 g/mL
Volume = 50mL
Mass =?
Density = Mass /volume
Mass = Density x volume
Mass = 15.3 x 50
Mass = 765g