1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Stells [14]
3 years ago
8

An anthropologist discovers the fossilized heart of an extinct animal. The evidence indicates that the organism's heart was larg

e, well-formed, and had four chambers, with no connection between the right and left sides. A reasonable conclusion supported by these observations is that the animal wasA) most closely related to mammals.B) most closely related to fish.C) most closely related to reptiles.D) most closely realted to athropods and molluscs. E) most closely related to amphibians.
Biology
1 answer:
dangina [55]3 years ago
4 0

Answer:

Option A, most closely related to mammals

Explanation:

Insects like arthropods and molluscs have an open circulatory system and thus do have a distinguishable heart. Fish has two chambered heart. Reptiles have three chambered heart. Amphibians too have a three chambered heart.  

All mammals and fish have four chambered heart. The right and left sides of the chambers have restricted entry and hence remain intact from each other

Hence, option A is correct

 

You might be interested in
Fuel rods in the reactor vessel are made of ______
kkurt [141]
Uranium Is Made In Fuel Rods In The Reactor Vessel

6 0
3 years ago
Read 2 more answers
How does the name porifera relate to the structure of a sponge
WITCHER [35]

Explanation:

the name porifera means pore bearer in latin. a sponges body is covered by a skin, one cell thick. this skin has lots of small pores ad a few large openings. the small openings are the entrances to a complex system of channels. these collar cells pump water through the entire sponge and filter out food for the sponge cell to eat

6 0
2 years ago
The _____ theory explains how our universe became so structured and uniform.
Georgia [21]
<span>Inflation theory is the theory explains why our universe is structured and uniform and suggests that the universe is flat in shape. According to that theory, the universe expanded exponentially fast for a fraction of a second after the Big Bang.</span>
8 0
2 years ago
Read 2 more answers
How is the phloem in a leaf related to the roots of the plant?
wel

Answer:

The phloem carries important sugars, organic compounds, and minerals around a plant. Sap within the phloem simply travels by diffusion between cells and works its way from leaves down to the roots with help from gravity. The phloem is made from cells called 'sieve-tube members' and 'companion cells'.

6 0
2 years ago
What do elephants use for energy
Oxana [17]
Sun, food, and water
4 0
2 years ago
Read 2 more answers
Other questions:
  • In 1800s London England, Peppered Moths underwent an event that chaged their
    8·1 answer
  • What is the definition of photosynthesis
    13·1 answer
  • Select all the correct answers.
    9·1 answer
  • The Gulf Stream current shown here makes the waters of the North Atlantic
    5·1 answer
  • How many parts does a vaginal organ have.All jokes aside
    11·1 answer
  • The best type of graph to illustrate the change in air temperature over a period of time would be a _________ graph.
    7·1 answer
  • The remora fish attaches itself to sharks for transportation and access to food scraps. The shark is not harmed. What type of ex
    8·2 answers
  • Why do you need only one polio vaccination, but a new flu shot every year?
    5·1 answer
  • Question 9
    5·1 answer
  • Therapeutic cloning in which embryonic stem cells are used raises concerns among some members of society. Which of these is usua
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!