Which adaptation is not an example of a structural adaptation?

needles on a porcupine

thick bark

needles on a cactus

a bear hibernating

What's the Ph and Acid or Base Hydrochloric Acid

Which of the following is a true statement about sexual vs. asexual reproduction? A. Asexual reproduction, but not sexual reproduction, is characteristic of plants and fungi. B.

Differences between a typical animal cell and a red blood cell

Which of these verbs expresses an action that is percieved or sensed A. jog B. laugh C. punch D. Want

Why is the ground moist in the morning?

All the systems of the body work together to keep the internal environment of the body constant within certain limits. this process is called a. homeopathy. b. homoeostasis. c. positive feedback. d. neuroglia.

An experiment for a new asthma medication was set up into two groups. Group one was given the new drug for asthma, while group 2 was given a sugar pill. The sugar pill serves as a:

Linear equations 4x+17=-15 solve in one variable.

Because genes close together on a chromosome tend to be inherited together, they are said to form a

What are the chances of having a child with hitchhiker's thumb if both parents are hybrids? Show work