Question

PLEASE.I really need help with this.

The largest animal group is/are ____________. *
chordates
vertebrates
invertebrates
warm blooded

The animal kingdom is characterized by which of the following? *
eukaryotic, multicellular and autotrophic with cell walls
prokaryotic, , macroscopic and heterotrophic with cell walls
eukaryotic, multicellular and heterotrophic lacking cell walls
prokaryotic, macroscopic and autotrophic lacking cell walls

A dichotomous key is used to ___________. *
identify dicots, only
identify and name organisms
gain entry to homes by burglars
determine the meaning of life

What are the general characteristics of all vertebrates?
Include several animal phyla.
Have a backbone or spinal column.
Lack cephalization.
Include all chordates.

An example organism of the phylum Porifera is a/an _______. *
leech
sponge
sea cucumber
amoeba
Other:_______

Humans have which of the following type of symmetry? *
none
bilateral
radial
pentaminal

More organisms will be in a class than a phylum in the same kingdom. True or False? *
True
False

Which is taxon bigger (more inclusive)?
Class
Genus
Domain
Order

Animals are listed in which of the following domains?
Archae
Bacteria
Eukarya

To survive as an individual, all animals must maintain homeostasis. Which of the following is NOT a part of homeostasis? *
eliminating wastes from their body
gathering and responding to information in their environment
reproduction- to produce viable offspring
distributing oxygen and nutrients throughout their body

Sally finds an animal while exploring a reef. It has the following characteristics: a dorsal, hollow nerve cord, gill slits and a tail that extends past the anus. Which phylum is the best match? *
arthropds
annelids
echinoderms
chordates

The evolutionary tendency where nerve cells and sense organs are grouped in the front or anterior part of the animal, the head, is called ___________. *
cephalization
segmentation
deuterostome
coelom

Radial symmetry is a benefit for animals with it as it allows them to *
have a head region.
move and obtain food in any direction.
travel in a very controlled manner.
react slowly to external conditions.
Insects are *
more than seventy percent of all the known species on the planet.
limited to few regions on Earth.
found mostly in aquatic, notably marine environments.
protected by a rigid endoskeleton.

How do cnidarians capture their food?
sharp teeth
filter feeders
stinging tenticles
open pores

Warm-blooded, or endothermic, mammals and birds are able to maintain the optimal body temperature for metabolic activities to occur. What is a disadvantage of being endothermic? *
eat more food and produce more ATP
live in cold climates
have thick fur or fat layers
require sunlight to maintain their temperature

What is the difference between innate behaviors and learned behaviors in animals? *
Innate behaviors come from experience
learned behaviors are taught by parents
Innate behaviors include hunting technques
learned behaviors are ones they are born with

Binomial nomenclature is a scientific naming system that uses *
two names
Genus -capitalized
species- lower case
Latin and Greek
All of the above

Answer 1

1. The largest animal group are the invertebrates, as they include insects as well, which are the most populous.
2. Animal cells are eukaryotic, multicellular and heterotrophic lacking cell walls.
3. A dichotomus key is used to identify and name organisms.
4. All vertebrates have a backbone or spinal column. Examples of vertebrates are mammals and birds.
5. A sponge is an organism that belongs in the phylum porifera.
6. Humans have bilateral symmetry, meaning there is a vertical axis of symmetry through the center of our bodies.
7. False, a phylum is a larger taxon than a class.
8. Domain is the largest taxon, there are three domains, bacteria, archaea and eukaryota.
9. Animals fall under eukaryota.
10. Reproduction is not a part of homeostasis, because homeostasis is the maintenance of constant body conditions.
11. The animal is likely to belong to the phylum chordates.
12. The concentration of sensory organs at the anterior end of an organism is known as cephalization.
13. Radial symmetry allows organisms to move and obtain food in any direction.
14. Insects are more than 70 percent of all known species on the planet.
15. Cnidarians rely on stinging tentacles to rupture their food.
16. Endothermic organisms must eat more food and produce more ATP to maintain their body temperatures.
17. Learned behaviors are taught by parents. Innate behaviors are instinctual, and they do not need to be taught. Learned experiences are gained by organism by experience.
18. All of the above. Binomial nomenclature uses both Latin and Greek names, to make a two-part name with the first part being the genus name with its first letter capitalized and the second part being the species name.

Answer 2

The explanations are mentionned in the attached file.

1. The right answer is invertebrates

2. The right answer is Eukaryotic, multicellular and heterotrophic lacking cell walls

3. The right answer is Identify and name organisms

4. The right answer is Have a backbone or spinal column.

5. The right answer is Sponge

6. The right answer is Bilateral

7. The right answer is False

8. The right answer is Domain

9. The right answer is Eukarya

10. The right answer is Reproduction

11. The right answer is Chordates

12. The right answer is Cephalization

13. The right answer is Move and obtain food in any direction.

14. The right answer is More than seventy percent of all the known species on the planet.

15. The right answer is Stinging tenticles

16. The right answer is Eat more food and produce more ATP

live in cold climates

17. The right answer is Learned behaviors are taught by parents

18. The right answer is All of the above