BIOLOGY HIGH SCHOOL

The male voice tends to be in a lower range than a female's voice because men have:a. shorter and fatter vestibular ligaments
b. more air to push through the rima glottidis
c. more taut vestibular folds
d. longer and thicker vocal folds e) wider arytenoid cartilages

Answers

Answer 1
Answer: I belive it should be d but I could be wrong why I do think its d tho is beacuse there would be less tension on the folds hemces creating a lower voice

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The matter in a bear body is not capable of moving and changing without____a; stability
b; shelter
c; sunlight
d ; energy

Answers

Answer:

Option d ; energy

Explanation:

Energy is the main component of life. From simple processes such as photosynthesis, to the production of plants, to reproduction in mammalian life, all depend on the life-driving force of energy.

In the bear's life, the energy is needed for cellular processes like respiration, particularly the Krebs Cycle. Not only that, because bears live in polar regions, they need heat to keep them warm. Without energy, they will not be able to move, hunt or sustain themselves.

The brain communicates with the rest of your body by _____.

Answers

The Central Nervous System is the "highway" in the body through which the brain transmits electrical pulses down the spinal chord to the nerves and organs. The brain sends and transmits these signals to control the functions of the body.Hope this helps. Let me know if you need additional help!
The question says, how does the brain communicate with the rest of the body. The brain communicate with the other parts of the body by sending nerve impulse, which are form of electrical signal which travel throughout the body, carrying messages from the brain to the receptors and the cells of the body which respond appropriately to the signals.

A student examines a cell under the microscope and determines that it is a eukaryote. All but one structure could help the student come to this conclusion. Which structure is of no help?A) cell wall
B) Golgi body
C) mitochondrion
D) membrane-bound nucleus

Answers

Answer:

A) cell wall

Explanation:

The cell wall does not help differentiate prokaryotic cells from eukaryotic cells, since both have the cell wall (formed by polysaccharides and amino acids).

The other structures help identify the eukaryotic cell due to the fact that only this type of cell has them, while prokaryotic cells lack organelles such as mitochondria and the golgi complex.

In addition, prokaryotes do not have membrane-bound nuclei, and due to their less complex structure, their genetic material is dispersed in the cytoplasm.

Answer:

the answer must be A.

Explanation:

i did on usatestprep!

The endocrine system plays an important role in the body by influencing every organ and cell. Please select the best answer from the choices provided.a. True
b. False

Answers

The sentence above is true.

>The endocrine system influences almost every cell, organ, and function of our bodies.
>The endocrine system is the collection of glands that produce hormones that regulate metabolism, growth and development, tissue function, sexual function, reproduction, sleep, and mood, among other things. 

Brown fat cells produce a protein called thermogenin in their mitochondrial inner membrane. Thermogenin is a channel for facilitated transport of protons across the membrane. What will occur in the brown fat cells when they produce thermogenin? A) ATP synthesis and heat generation will both increase.
B) ATP synthesis will increase, and heat generation will decrease.
C) ATP synthesis will decrease, and heat generation will increase.
D) ATP synthesis and heat generation will both decrease.
E) ATP synthesis and heat generation will stay the same.

Answers

Answer:

C) ATP synthesis will decrease, and heat generation will increase.

Explanation:

The energy for ATPs synthesis in the mitochondria is generated by the  Proton Motive Force (PMF), which pumps protons across the intramembrane ;to set up electrochemical gradient for protons between the matrix and intramemebranes.

The energy generated  with the influx of protons down their electrochemical  gradients into the matrix is used for ATPs synthesis by the enzyme ATPase synthase.

Thermogenin however increases the permeability of inner mitochondria membrane to protons. Therefore the pumped protons in the intramemebranes leaked back into the mitochondria matrix,thus reducing the electrochemical gradient, inhibiting chemiosmosis, and therefore the energy for synthesis of ATPs by ATPase synthase enzyme in oxidation phosphorylation.

Therefore these uncoupling protein reduces the proton gradient meant for ATP synthesis.However because of the ability to generate heat  in the body as  non -shivering  mechanism of  heat generation, thermogenin will increase heat  in the brown fat cells.

Explanation:
B) ATP synthesis will kncrease and heat generation will decrease

Definition of crest in science

Answers

The definition of crest is something that is located at the top of something
A crest is the highest point the medium rises to and a trough is the lowest point the medium sinks to. Crests and troughs on a transverse wave are shown in Figure 1. Figure 1: Crests and troughs in a transverse wave.
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