Which two of these statements are true about mammals

the females have mammary glands

the females give birth to live young

they breathe using gills

the endoskeleton is made up of chitin

The hydrophilic heads of the outer layer face the?

Labrador retrievers coat color is controlled by two genes. For the cross bbEe x BbEe, choose all the possible gametes produced by bbEe parent. A - bbee B - be C - bbEe D - bE E - Ee

Which of the following is true of high clouds? A. they cause most precipitation B. they generally produce lightning C. they are the result of sublimation D. they are composed mostly icy water

Which statement is true? a. Hormones travel via specific pathways to specific cells, while electrical signals travel through the blood to all areas of the body. b.

Astrophysics and planetary science are considered subspecialties of a. genealogy. b. astrology. c. geology. d. astronomy.

What might happen to the finch populations after millions of years

How is hyaline cartilage different from elastic cartilage or fibrocartilage?

John has not been feeling well. he is constantly tired. his blood pressure is low and at times his vision is blurred. what two symptoms does john have that are characteristic of diabetes (type 1 or 2)

9. In a small population of snails, one individual inherits a synonymous mutation in a gene that codes for an important protein. After 5 generations, 6 % of the snail population carries this mutation.

What is the symbol equation for aerobic respiration?