Written by students who passed Immediately available after payment Read online or as PDF Wrong document? Swap it for free 4.6 TrustPilot
logo-home
Document preview thumbnail
Preview 4 out of 34 pages
Exam (elaborations)

BIO 1500 chapter 20 Questions and Answers (100 %Score) Latest Updated 2026 Answers

Document preview thumbnail
Preview 4 out of 34 pages

BIO 1500 chapter 20 Questions and Answers (100 %Score) Latest Updated 2026 Answers

Content preview

BIO 1500 chapter 20

1. Natural selection forces variations that increase relative -> It


promotes traits and behaviors that increase an organism's chances of survival


and reproduction in their environment: fitness



2. Evolutionary adaptations that enable survival vary among environments and


species but often result in a close match of to : form, function


3. Briefly differentiate between anatomy and physiology:: - Anatomy is the biological form


of an organism
- Physiology is the biological function performed by an organism


4. The range of animal form is limited by laws that govern strength,


diffusion, movement and heat exchange: physical


5. Terms describing positions in the bilateral body:





,- (front)


- (rear)


- (toward the back)


- (toward the stomach): anterior, posterior, dorsal, ventral



6. : structural and developmental characteristics that can


be used to identify a group of animals, such as a phylum


- Refers to the general similarities in development and form and function


among members of a particular phylum



, , or : Body plan


- Asymmetrical, radial, or bilateral


7. : animals with no pattern or symmetry; example





,sponge




: has an up-and-down orientation; any plane cut


along its longitudinal axis produces equal halves, but not a definite right or left


side (aquatic animals, especially organisms attaching themselves to a base)




: organism has an upper and lower component to it, but


a plane cut from front to back separates the animal into definite right and






, left sides (found in both land-based and aquatic animals; enables high level of


mobility): Asymmetrical, Radial symmetry,


Bilateral

8. Standing vertebrate can be divided into several planes. These include...: -


Midsagittal plane divides body in the middle, making two equal right and left halves.

- Frontal plane (coronal plane) separates the front from the back
- Transverse plane (horizontal plane) divides animal into upper and lower portions (cross section)

9. Vertebrate have several defined body cavities (TRUE OR FALSE): TRUE


10. There are 2 major cavities containing smaller cavities within them...: Dorsal cavity,


ventral cavity

11. Dorsal cavity contains the ...: cranial and the vertebral (or spinal) cavities


12. The ventral cavity includes:: - Thoracic cavity, includes: the pleural cavity around the lungs and the


pericardial cavity around the heart
- Abdominopelvic cavity, separated into the abdominal and pelvic cavities.

Document information

Uploaded on
October 31, 2025
Number of pages
34
Written in
2025/2026
Type
Exam (elaborations)
Contains
Questions & answers
$13.48

Wrong document? Swap it for free Within 14 days of purchase and before downloading, you can choose a different document. You can simply spend the amount again.
Written by students who passed
Immediately available after payment
Read online or as PDF

Seller avatar
Reputation scores are based on the amount of documents a seller has sold for a fee and the reviews they have received for those documents. There are three levels: Bronze, Silver and Gold. The better the reputation, the more your can rely on the quality of the sellers work.
Favorgrades
3.8
(193)
Sold
824
Followers
376
Items
48830
Last sold
1 week ago


Why students choose Stuvia

Created by fellow students, verified by reviews

Quality you can trust: written by students who passed their tests and reviewed by others who've used these notes.

Didn't get what you expected? Choose another document

No worries! You can instantly pick a different document that better fits what you're looking for.

Pay as you like, start learning right away

No subscription, no commitments. Pay the way you're used to via credit card and download your PDF document instantly.

Student with book image

“Bought, downloaded, and aced it. It really can be that simple.”

Alisha Student

Working on your references?

Create accurate citations in APA, MLA and Harvard with our free citation generator.

Working on your references?

Frequently asked questions