Can sombody me with science 30 !
charles darwin's groundbreaking book, the origin of species, described the process of
acquired traits.
natural selection.
the laws of gravity.
the movement of the solar system.
question 2
which of the following is an example of an adaptation that would give an animal differential mortality?
ability to hold breath underwater
stronger legs for jumping
differently shaped teeth for tearing different types of food
all of the above
.
question 3
which of the following has improved its fecundity?
a rabbit that has longer ears
a stingray that is well-camouflaged
a wood duck with brighter, vibrant coloration than the others
a tree frog with a more toxic poison

Darrel conducted an experiment with the following procedure: fill two cups with ice water. place an uninflated balloon snuggly onto your left index finger. blow a little air into an identical balloon, and place it onto your right index finger. place both fingers into the cups of ice water. darrel noticed that his right finger felt warmer in the ice water than did his left finger. which of the following does the experiment show? a. air is a good radiator of heat. b. air is a good insulator of heat. c. air is a good conductor of heat. d. air is a good convector of heat.

How do the evolutionary chart and the video support the claim that all living things are made up of cells?

Mr. j, age 42, is a construction worker in las vegas. he recently noticed that a mole on his face seemed to be getting larger and darker. at first he did not worry because he was in the sun a lot and assumed the change may have been caused by sunburn. after a month, not only was the mole larger and darker, but it appeared to be “bumpy.” his doctor diagnosed a malignant melanoma skin cancer following biopsy of the nevus. mr. j reports pain in his right shin that does not go away when he puts his feet up or sleeps. discussion questions 1. relate mr. j’s skin changes to the warning signs for malignant melanoma. (see malignant melanoma.) 2. discuss the normal progression of this malignancy. what is the significance of the bone pain that mr. j is experiencing? (see malignant melanoma.) 3. discuss the treatment available for this patient and the prognosis for recovery. (see malignant melanoma.)