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
lapo4ka [179]
2 years ago
7

What must have been present for life to begin the process of evolution by Natural Selection?

Biology
1 answer:
TEA [102]2 years ago
5 0

A population of organisms must exist. There must be variation among the members of the population. There must be a mechanism by which some members of the population can produce more offspring than other members. There must be a mechanism by which the variation among members of the population is passed on to their offspring.

You might be interested in
Extinction of organisms is a relatively recent phenomenon attributed primarily to man.
Otrada [13]
The correct answer is false. Extinction of organisms is not solely cause by man. Even way before, extinction is already happening. It can be caused by natural or human causes. Natural causes includes volcanic eruptions, earthquakes, floods, etc.
6 0
3 years ago
Read 2 more answers
5 factors that affect lung capacity
pogonyaev
Age- younger people have smaller capacity
gender-males have larger capacity
muscle mass
aerobic fitness
diseases of the respitorary system
6 0
3 years ago
A person infected with the human immunodeficiency virus may have any symptoms for a period of time. During this period, the viru
podryga [215]

Answer:

It effects the body by causing symptoms like muscle aches, low-grade fever, headaches, sometimes rashes, swelling of the lymph glands may also occur, and flu-like illness. These are symptoms after a few weeks of being infected.

5 0
3 years ago
HELP ME!!! BIOLOGY!!!!
spin [16.1K]

Answer:

1. water, CO2 and Light energy

2. the runner's cells are making up for an oxygen deficit

3. chloroplasts absorb sunlight

4. carbon dioxide

5. eukaryotes

Explanation:

6 0
3 years ago
A researcher mixes M. tuberculosis with and without the rpoB mutation and adds the bacteria to cell cultures. Half the cell cult
kolezko [41]

Answer:

very few M. tuberculosis in the standard nutrient cell cultures carry the rpoB gene mutation, but almost all of the M. tuberculosis in the cell cultures with rifampin carry the rpoB mutation

4 0
3 years ago
Other questions:
  • Which of the following can give an indication of the time since death?
    11·1 answer
  • Fats are made of an alcohol called ?
    10·1 answer
  • Which characteristic features are common in archea and eukaryotes?
    9·1 answer
  • Which of the following statements is not correct?
    13·2 answers
  • Answer this plzz!!!​
    12·1 answer
  • What is the oldest type of bacteria
    13·1 answer
  • Can someone help me please
    5·1 answer
  • Which celestial body impacts tides the most
    9·2 answers
  • 4. Describe an individual with the karyotype shown.
    10·1 answer
  • What happens when oxygen comes in contact with NOx and VOCs?
    11·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!