Explain the relationship between atoms and elements
What will be an ideal response?
Elements are unique substances that cannot be broken down into simpler substances by ordinary chemical means. Each element is composed of very similar particles, or building blocks, called atoms. Because all elements are unique, the atoms of each element differ from those of all other elements.
You might also like to view...
In a lean adult male, the body consists of about ________ percent water
A) 60 B) 90 C) 40 D) 10 E) 80
Which of the following is a nucleus found in the medulla oblongata that receives sensory information associated with touch, pressure and vibration?
a) Tectum b) Superior colliculus c) Substantia nigra d) Pontine nucleus e) Gracile nucleus
Hypophysiotropic hormones from the hypothalamus
a. control the release of oxytocin and vasopressin from the posterior pituitary. b. travel via neuron axons from the hypothalamus to the anterior pituitary. c. are carried in the hypothalamo-hypophyseal portal system. d. are released upon positive-feedback stimulation via the anterior pituitary tropic hormones. e. always act to stimulate the release of anterior pituitary hormones.
Carnivores such as a lion are able to kill their prey because of powerful jaw muscles. We humans do not need this power in our jaw muscles. Which muscle is more powerful in the carnivore than the human?
A) Orbicularis oris B) Masseter C) Buccinator D) Zygomaticus major