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
Rainbow [258]
3 years ago
14

Which best describes organisms of the Precambrian era?

Biology
1 answer:
otez555 [7]3 years ago
3 0
Out of the choices given, the best way to describe the organisms of the Precambrian era are they were single-celled organisms and soft, boneless animals. One thing from that time that we still have today is the jellyfish. The correct answer is C. 
You might be interested in
Dated to approximately 500,000-400,000 years ago, the site of _______ has yielded a sample of 4,000 fossil fragments representin
Luden [163]

Answer:

c. ​Sima de los Huesos

Explanation:

7 0
3 years ago
Where does oxygen move from the respiratory system to the circulatory
Vedmedyk [2.9K]

Answer: Alveoli

Explanation: Alveoli of lungs are surrounded by extensive blood capillaries. The partial pressure of oxygen in the alveoli is higher than the blood entering the pulmonary capillaries, hence oxygen moves into the blood. Carbon dioxide in the lungs simultaneously diffuse out of the blood into the alveolar space.

8 0
3 years ago
select all of the following that are examples of how organisms respond to external stimuli. multiple select question. a person r
Airida [17]

The answer is a person removes their hand after touching a hot stove and a person turns their head toward the source of loud noise.

External stimuli are factors outside of the body that is taken in by receptors and will lead to a response. Examples of external stimuli include temperature changes, vision, hearing, tasting, smelling, and even sunlight for plants.

Learn more about External stimuli here:

brainly.com/question/11557304

#SPJ4

6 0
2 years ago
What is a scientific theory?
pychu [463]

Answer: scientific theory is an explanation of observations or events that is based on knowledge gained from many observations or events.

7 0
3 years ago
Read 2 more answers
Tell me the answer for everythink​
natita [175]
Question:why were maggots there only after the flies left
Hypotheses:the maggots are fly larva
4 0
3 years ago
Read 2 more answers
Other questions:
  • 1. Explain why neither cyclins not kinases alone can cause a cell to progress along in the cell cycle.
    15·1 answer
  • With regard to enzymes, key is to lock as
    12·2 answers
  • Which of the following are photosynthetic autotrophs?
    5·1 answer
  • Identify the ion that is more concentrated inside the cell than outside the cell
    6·1 answer
  • If you have an idea to improve a complex software process at work, what is the most effective way to communicate this idea?
    8·1 answer
  • As energy flows from producers to consumers, some E is lost to the<br> environment as
    7·1 answer
  • The study of changes in phenotype that are not related to changes in the DNA and that may result from the interaction between th
    13·1 answer
  • If a jack hammer exerts a force of 125N on the concrete. What is the magnitude of the force exerted back on the Jack Hammer?
    5·2 answers
  • Cross a person who does not have freckles and is heterozygous for dimples with a person who has
    7·1 answer
  • Sometimes if you start with 100 or more buffalo, the entire population of buffalo will end up dying off. why do u think this hap
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!