Which of the following adaptations is characteristic of crocodiles?

a. Scaly skin

c. Four-chambered heart

b. Ectothermic

d. All of the above

At the chromosomal level, whats the difference between human males and human females? A. All males have a Y chromosome, and females do not. B. All males have a X chromosome, and females do not. C.

How does pesticides harm the environment

The dot plot shows the number of songs in a play list. Determine the mean of the data set. A) 39 B) 40 C) 41 D) 42

List the level of organization in order from smallest to largest ... ?

Thermal energy tends to flow as heat A. from a system of lower energy to a system of higher energy. B. only between systems that have equal energy. C. only between systems that have equal temperatures. D.

Explain the difference between an iconic compound and a molecule

Skin cancer is to exposure to the UV radiation as a keratin is to tanning b acne is to excessive secretion of oil c waterproofing is to temperature regulation d melanin is to acne

There could be many possible interpretations of what surrounds you in the natural world. O True O False

What is the only item that can be reused in a self-service situation? Select one: a. Beverage Cups b. Utensils c. Straws d. Plates

A scientist begins working by trying to explain a natural occurence that is