Reading...
Play button
Play button
Use LEFT and RIGHT arrow keys to navigate between flashcards;
Use UP and DOWN arrow keys to flip the card;
H to show hint;
A reads text to speech;
8 Cards in this Set
- Front
- Back
|
Angiosperm produce seeds inside structures called _______.
|
flowers
|
|
|
Give examples of taproots.
|
Carrots, Turnips, Radishes
|
|
|
“Annelid” means _______.
|
little rings (or segmented)
|
|
|
The dorsal blood vessel in an earthworm serves what purpose?
|
The dorsal blood vessels in earthworms carry blood to the head.
|
|
|
How would an earthworm benefit gardeners?
|
Earthworms till the soil by tunneling through it so air and water flow through it. They also produce fertilizer that conditions the soil.
|
|
|
Describe the circulatory system of amphibians.
|
Amphibian hearts usually have 3 chambers: left atrium, right atrium, and ventricle. Oxygen-poor blood circulates from the body to the right atrium. At the same time, oxygen-rich blood from the lungs and skin enter the left atrium. When the atria contracts, they empty their blood into the ventricle. The ventricle then contracts, pumping blood out to a single, large blood vessel that divides and branches off into smaller blood vessels. Because of the pattern in which the blood vessels branch, most oxygen-poor blood goes to the lungs, and most oxygen-rich blood goes to the rest of the body. However, there is some mixing of oxygen-rich and oxygen-poor blood.
|
|
|
Which chamber of an amphibian’s heart contains blood with the highest oxygen concentration?
|
Left atrium
|
|
|
Why do amphibian eggs dry out easily?
|
because they don’t have hard protective shells
|
