Which organism has a nerve net that allows it to respond to a stimulus in a coordinated way?

clam

earthworm

hydra

shark

How does water's specific heat relate to its usefulness for life give examples?

Which process involves the movement of molecules or atoms down a concentration gradient across plasma membranes?

The outermost tissue of a tree trunk that is 6 feet in diameter would most likely be (A) epidermis (B) cork (C) cortex (D) phloem (E) xylem

Homeostasis can occur at the cellular level or the system level. a. True b. False

Unlike identical twins, fraternal twins A. are produced from two identical embryos. B. result from two eggs fertilized by different sperms. C. result from the same fertilized egg. D. are always the same sex.

The relationship between a gene and a messenger RNA is as follows:a. mRNAs are made from genes. b. Genes are made from mRNAs. c. mRNAs make proteins which then code for genes. d. Messenger RNA is directly responsible for making Okazaki fragments. e.

What is a real life example of ecosystem

Molds and mushrooms are both

What is the Hubble space telescope?

In sequential test, there is typically a loss in specificity. a. True b. False