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
ANTONII [103]
2 years ago
5

What is the cell ? How many champers did have the heart?

Biology
1 answer:
True [87]2 years ago
6 0

Answer:

In biology, the smallest unit that can live on its own and that makes up all living organisms and the tissues of the body. A cell has three main parts: the cell membrane, the nucleus, and the cytoplasm. ... Parts of a cell. A cell is surrounded by a membrane, which has receptors on the surface.

The heart consists of four chambers in which blood flows. Blood enters the right atrium and passes through the right ventricle. The right ventricle pumps the blood to the lungs where it becomes oxygenated.

Explanation:

You might be interested in
How is the sun’s energy passed along in an ecosystem?
Katen [24]

Answer:

Energy is passed between organisms through the food chain. The organism that obtains energy from sunlight is called the producer.

Explanation:

8 0
3 years ago
Plant cells and animal cells were observed under a microscope. The characteristics of two cells are listed below.
ziro4ka [17]
Answer is b.
all cells have cell membrane
6 0
3 years ago
Read 2 more answers
By 1952,many scientist were convenced that genes are made of dna, but they did not yet know how dna worked. why was it important
blondinia [14]
Once they understood the structure of DNA a lot of things became more clear including how DNA was replicated. 

So I think your answer is copies? meaning how it is copied (replicated).

The structure also led later on to how it was transcribed into mRNA (and eventually into proteins by ribosomes). 
8 0
3 years ago
Darwin’s theory of descent with modification states that…
MatroZZZ [7]

Answer:

c

Explanation:

4 0
3 years ago
The changes to the cuttlefish’s skin are related to _______.
Pachacha [2.7K]
The bands of circular muscle structures that are located at the cuttlefish skin are most likely responsible for the changes of its outer covering. In addition, the colour cells that are present on the cuttlefish skin were estimated to be about 10 million which is why it was coined "the chameleons of the sea."
7 0
3 years ago
Other questions:
  • Mitosis and meiosis always differ in regard to the presence of a. chromatids. b. homologs. c. bivalents. d. centromeres. e. spin
    7·2 answers
  • When a soccer ball is in flight what forces are acting on it
    10·2 answers
  • CO2 is returned to the atmosphere by all methods EXCEPT
    9·2 answers
  • If conducted accurately identical investigations should produce similar results. Sometimes, errors like measurement errors, can
    14·1 answer
  • Anyone know the answer?
    7·1 answer
  • Which best describes the law of independent assortment?
    12·2 answers
  • When CpG islands are unmethylated, ________.
    10·1 answer
  • The blue areas in the image represent the body parts that transport deoxygenated blood throughout the body. What are they called
    9·2 answers
  • Use the data set to answer the question. Which best describes the data set
    12·1 answer
  • A baby carriage is sitting at the top of a 21 m high hill. It weighs 12 N. It has ________________ energy?
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!