Answer:
True. The heart contracts twice per heartbeat. One contraction is the ventricular and the other one is the artrial.
<span>Humans have pores in their skin to sweat and cool off the body. Plants have similar structures called stomata. Through these structures, plants can do the same things humans can through their pores, such as release the heat from them, as well as unnecessary chemicals through "sweating." Tendrils are stems, pores are called stomata, and not pores when it comes to plants, and receptacles are parts of the stem where flower organs grow.</span>
They are semi-permeable because they can diffuse and pass through the plasma membrane easily.
Answer:
It reduces the amount of DNA
Explanation:
Ends up with four daughter cells that each have half the amount of chromosomes in the parent cell.
Answer: D is right
Explanation: It seems both waves have same wavelength.
Because speed = wavelength · frequency (v = λf) and
f = v/λ, so frequency is same. Because period T = 1/ frequency, also periods are same. Wave Y has higher amplidude and its energy is greater.
