The given statement, "Human movement involves the complex interplay of many body systems." is true. Human movement is a complex process that requires the coordination and interaction of multiple body systems. These body systems include the muscular system, skeletal system, nervous system, and cardiovascular system, among others.
The muscular system plays a vital role in movement by generating force and facilitating the contraction and relaxation of muscles. Muscles work in pairs, with one muscle contracting while the opposing muscle relaxes, allowing for controlled movement. This interplay of muscles is necessary for various movements, such as walking, running, and lifting objects.
The skeletal system provides structural support and serves as the framework for movement. It consists of bones, joints, and connective tissues. Bones act as levers, while joints allow for flexibility and facilitate different types of movement, such as bending, rotating, and extending.
The nervous system is responsible for controlling and coordinating movement. It receives and processes sensory information, sends signals to muscles to initiate movement, and regulates the speed and force of muscle contractions. The brain and spinal cord are integral components of the nervous system, playing a crucial role in coordinating complex movements.
The cardiovascular system, composed of the heart, blood vessels, and blood, transports oxygen and nutrients to the muscles involved in movement. It also carries away waste products, such as carbon dioxide, generated during muscular activity. Adequate blood flow and oxygen supply are essential for optimal movement and performance.
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B. hypothermia
C. reflex
D. respiration
The term best describes this process is homeostasis.
A self-regulating process by which an organism maintains a constant internal environment of their body is known as homeostasis.
The variables that are maintained during homeostasis are:
The substances that can disrupt homeostasis are:
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B) Different species share the same space.
C) A population is divided.
D) A major change on earth takes place.
2. Which of the following must be true of their individuals if two populations are no longer the same species?
A) They do not have any of the same genes.
B) They do not share any of the same space.
C) They do not resemble each other at all.
D) They cannot reproduce successfully with each other.
3. How does speciation start to take place on a genetic level between two isolated populations?
A) Large numbers of mutations occur.
B) Allele frequencies change in different ways.
C) New genes are added to one group.
D) Recessive alleles become dominant.
The 3rd question is actually B. Allele frequencies change in different ways
a. They perform body functions by diffusion.
b. They have organs for specific functions.
c. Similar cells do not cooperate together.
The answer to this question is C
Answer: Number of half lives occurred 2.
Explanation:
Let the initial concentration be x
Concentration left=25 % of the x=
To calculate the number of half lives, we use the formula:
..(1)
where,
a = amount of reactant left after n-half lives = 0.0495 moles
= Initial amount of the reactant = 0.7924 moles
n = number of half lives
taking log both sides
n = 2
Number of half lives occurred 2.