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
poizon [28]
3 years ago
11

How did early life help create the ozone layer?

Biology
1 answer:
Semmy [17]3 years ago
3 0

Answer:The Ozone Hole. One billion years ago, early aquatic organisms called blue-green algae began using energy from the Sun to split molecules of H2O and CO2 and recombine them into organic compounds and molecular oxygen (O2). ... As oxygen in the atmosphere increased, CO2 decreased.

You might be interested in
What type of mutation has occurred in the following example? Original DNA sequence С т с Original amino acid sequence Glutamic a
Alex73 [517]

Answer:

b

Explanation:

6 0
3 years ago
The energy released in this process was originally present in
Ira Lisetskai [31]
I think your question is: <span>The energy released during this process was originally present in </span>
<span>(1) sunlight and then transferred to sugar </span>
<span>(2) sunlight and then transferred to oxygen </span>
<span>(3) the oxygen and then transferred to sugar </span>
<span>(4) the sugar and then transferred to oxygen

The right answer is (1)
The sunlight is absorbed by chlorophyll as an energy to catalyse the formation of ATP and 3-phosphoglycerate to form sugar (which is considered as energy supply.</span>
8 0
4 years ago
Read 2 more answers
In addition to the base, what are the other components of a nucleotide?
mestny [16]
B. Phosphate and sugar. 
3 0
3 years ago
9.) The number of times a gene occurs in a gene pool is
stiks02 [169]

Answer:

Explanation:

A gene pool typically has two or more alleles for a given trait. Homozygous lethal traits can be carried by heterozygous individuals and thus remain in a gene pool. Relative Frequency is the number of times an allele occurs in a gene pool compared with the number of times other alleles occur.

3 0
4 years ago
PLS HURRY, I HAVE 1 MINUTE
Natalija [7]

Answer:

Hotter

Explanation:

Upon turning on the lava lamp's light, the liquid at the bottom of the container, which is denser, will heat and expand. As the liquid expands, the volume of the liquid increases, and its density decreases.

4 0
3 years ago
Other questions:
  • In humans, polydactyly (an extra finger on each hand or toe on each foot) is due to a dominant gene. When
    12·2 answers
  • Explain how a change in the sequence of nucleotides in a strand of DNA might cause a protein to malfunction.
    11·2 answers
  • What is the force that causes filtration of the blood by capillaries in the kidneys to occur?
    9·1 answer
  • Mushrooms and shelf fungi are classified as what
    12·1 answer
  • Immunity from vaccination
    5·1 answer
  • Pressure is_____if you heat something, because the_____in temperature causes the molecules to move_____and_____more.
    12·1 answer
  • The main organic source of energy for living things is
    6·2 answers
  • ¿ qué importancia tiene la diversidad dentro de una población?
    8·2 answers
  • Enter your answer in the provided box. Calculate the frequency of the genotype Aa from a population that is made up of the follo
    7·1 answer
  • in an El nino event, surface temperatures of the pacific oceans are above average for at least a year. what effect, if any, woul
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!