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
Genrish500 [490]
3 years ago
12

How is modern earth different from earth over four billion years ago?

Biology
1 answer:
Ainat [17]3 years ago
8 0
4 billion years ago the temperature was much higher due to repeated volcanoes and hot gases present in the atmosphere. There weren't any live forms on earth. ... The atmosphere had a different concentration of gases on the earth. There were no life sustaining gases.
You might be interested in
Which cells do not respond to the signals that regulate the growth of cells
anzhelika [568]
Cancer Cells

EXPLANATION: cancer cells do not respond to the signals that regulate the growth of most cells. Cancer cells,divide uncontrollably and form masses of cells called tumors that can damage the surrounding tissues
3 0
3 years ago
Do viruses contain some sort of genetic material?<br><br>A. True<br><br>B. False
jek_recluse [69]

Answer:

A. True

Explanation:

Most viruses have either RNA or DNA as their genetic material. The nucleic acid may be single- or double-stranded. The entire infectious virus particle, called a vision, consists of the nucleic acid and an outer shell of protein. The simplest viruses contain only enough RNA or DNA to encode four proteins.

8 0
3 years ago
Read 2 more answers
Breathing rate is constantly being monitored and adjusted in the human body which result in
iVinArrow [24]
<span>the internal environment being kept within certain limits
(example of homeostasis)</span>
<span>adequate oxygenation
Hope this helps :)
</span>
8 0
3 years ago
Read 2 more answers
consider The response of a plant cell in a hypotonic solution as seen here. imagine a human red blood cell being placed in the s
4vir4ik [10]
The red blood cell will be more exposed to oxygen making it a lighter color. ur veins r full of dark red blood and white blood cells (which are donut shaped)
3 0
4 years ago
Somebody help me please
IceJOKER [234]

metabolism is (A) both catabolism and anabolism. Anabolism and Catabolism are two metabolic processes, or phrases.

catabolism is (B) reaction that breaks a larger molecules into smaller ones.

anabolism is (C) reaction that combines smaller molecules to make a large molecule.

7 0
3 years ago
Other questions:
  • Smoking may lead to weight gain because it increases the body's capacity for physical activity true or false
    6·1 answer
  • Lenore delivers a healthy baby girl. Her medical documentation indicates that she has had a normal delivery with no complication
    9·1 answer
  • Cladodes are modified stems. which is their main function? A. Water retention
    7·1 answer
  • Match each organism with the correct description.
    7·2 answers
  • Explain the difference between ionic compounds and covalently bonded compounds. How do the two types of bonds differ?
    6·1 answer
  • How many protons are in an element with an atomic number of 8 and a mass number of 18? A 8 B 3 C 18 D 10
    10·2 answers
  • Which of the following stores the most energy in chemical bonds
    13·1 answer
  • carbon continuously cycles through the biosphere, changing forms. Which of the following statements accurately describes the mov
    12·1 answer
  • When people have heartburn, they often take an antacid like Milk of Magnesia to help them feel better.
    14·1 answer
  • if a parent cell has 48 chromosomes, how many chromosomes will each daughter cell have after mitosis and cytokinesis occurs?
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!