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
gavmur [86]
3 years ago
11

The common ancestors of birds and mammals were very early (stem) reptiles, which almost certainly possessed three-chambered hear

ts (two atria, one ventricle). Birds and mammals, however, are alike in having four-chambered hearts (two atria, two ventricles). The four-chambered hearts of birds and mammals are best described as ___________.
Biology
1 answer:
boyakko [2]3 years ago
8 0

Answer:

Homopalsies

Explanation:

They are the chambers in a mammal and it means a character with shared parts of the body as another speices

You might be interested in
Which of the following best classifies most dietary fiber?
balu736 [363]
It should be carbohydrates
3 0
3 years ago
How does the skeletal system interact with the nervous system?
Mice21 [21]

Answer:

The skeletal muscles connect to the bones and work with connective tissue at the joints to allow for movement. The muscles connect to the nervous system and allow initiation of movement through nerve signals to and from the brain. The bones and muscles are supported by connective tissue, which plays an integral role in structural support.

7 0
3 years ago
Why is the genetic makeup of the daughter cells formed in meiosis different from the parent cell?
sineoko [7]

Mitosis creates two identical daughter cells that each contain the same number of chromosomes as their parent cell. ... These new combinations result from the exchange of DNA between paired chromosomes. Such exchange means that the gametes produced through meiosis exhibit an amazing range of genetic variation.

https://www.nature.com/scitable/topicpage/replication-and-distribution-of-dna-during-meiosis-6524853

6 0
3 years ago
The data here indicates the number of species of amphibians that are affected by several factors in their environments.
Nana76 [90]

Answer:

b i hope it helps you !!!

Explanation:

7 0
3 years ago
A species of cactus has spines. How would biologists explain how a species of cactus with spines evolved from an ancestral cactu
sergejj [24]

Answer:

It needs the spines for protection

Explanation:

The cactus would develop the spines as a form of protection to protect itself from being consumed and to survive longer.

8 0
3 years ago
Other questions:
  • You are traveling across the Pacific Ocean when you come across a small island, island #1. There is lush vegetation and several
    14·1 answer
  • The question is: What is the relative age of layer 3? (Hint: With what absolute ages can you compare it?)
    13·1 answer
  • Is an avocado a complex fruit
    10·1 answer
  • Someone please help me
    14·1 answer
  • Waterproofing wax found on some plant leaves belong to this class of macromoleculesImmersive Reader
    10·1 answer
  • Which of the following is true regarding extinction?
    9·2 answers
  • Every cell in an organism contains DNA that is what
    15·1 answer
  • A scientist wants to know if giving caffeine to rats will help their ability to solve a maze. The scientist has 100 rats run t
    8·1 answer
  • The following facts are true about resource A
    12·1 answer
  • N20 can be removed from the atmosphere through the nitrogen cycle true or false?
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!