Answer:
D
Explanation:
have a great day!!
<h2><u><em>
it is towards the shore i just took the test on edg.</em></u></h2><h2><u><em>
PLEASE VOTE ME BRAINLIEST!!</em></u></h2>
Based on the data provided, Anthony will be safe because Anthony's ladder will make a 75. 522 degree angle.
<h3>What is the height of the wall?</h3>
The height of the wall is determined using trigonometric ratios.
Since the ladder must be within 1 degree of 76 degrees to be safe, we assume the maximum angle to be 77°.
Length of the ladder = 10 m
The ladder, the wall of building and the floor form a right-angled triangle.
Height of wall = 10 × sin 77°
Height of wall = 9.74 m
If Anthony places the ladder 2. 5 feet from the base of the building, angle A, it will make with the floor is calculatedas follows:
Cos A = 2.5/10
Cos A = 0.25
A = 75.522°
Therefore, Anthony will be safe because Anthony's ladder will make a 75. 522 degree angle.
Learn more about trigonometric ratios at: brainly.com/question/1201366
Answer: C
Explanation:
When a neuron receives a stimulus, the sodium channels present in the membrane are opened, and therefore Na+ enters the cell in favour of the concentration gradient, so that the membrane potential changes to positive by means of ion exchange, producing depolarization. If this depolarization reaches a certain threshold value, an action potential is generated. The next step is the opening of the potassium channels and the inactivation of the sodium channels, so that the repolarization of the membrane takes place. The sodium channels, will return to the closed state in the hyperpolarization to continue in this state during all the rest potential achieving the action potential to return to -70 mV (repolarization).; until the arrival of a new action potential which produces the activation and opening of the sodium channels, repeating the cycle again and generating a new depolarizing action. This process is part of the synaptic transmission.
So, hyperpolarization is any change in the cell's membrane potential, which makes it more polarized. This means, hyperpolarization is an increase in the absolute value of the cell's membrane potential. Thus, changes in membrane voltage where the membrane potential is more distinctly positive or negative are hyperpolarizations.
During the repolarization period after an action potential, the membrane potential is more negative than when the cell is in "rest period". In the picture, this repolarization period is about 1-2 milliseconds. <u>So, repolarization is the time in which the membrane potential is hyperpolarized with respect to the resting potential.</u>
In the attached figure, part C indicates this repolarization period.
Answer:
A. The waste materials generated by one organism are often reused by other organisms.
I ONLY NEED 1 MORE BRAINLIEST ANSWER TO RANK UP TO EXPERT :)
The discoloration of the skin and sclera associated with jaundice is caused by excessive bilirubin in the blood.
<h3>
What is bilirubin?</h3>
A reddish-orange substance called bilirubin is produced by vertebrates' typical catabolic process, which breaks down heme. The body needs to go through this catabolism to get rid of waste products that result from the oxidation of old or dysfunctional red blood cells. Elevated levels could be a sign of liver illness or injury. Direct bilirubin levels that are higher than usual in your blood may be a sign that your liver isn't properly removing bilirubin. Increased indirect bilirubin levels could be a sign of other issues. Bilirubin is created in the body as a result of the breakdown of red blood cells (RBCs). The bile duct contains the bilirubin once it has traveled to the liver. Bilirubin is ultimately eliminated by the body through stools. Brown and yellow bilirubin is the pigment that gives feces their brown hue.
To learn more about bilirubin, visit:
brainly.com/question/28287289
#SPJ4
