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
Nana76 [90]
3 years ago
8

What causes genetic variation in a population ?

Biology
1 answer:
g100num [7]3 years ago
5 0

Answer:

environmental factors but also dna and genes

Explanation:

environmental factors such as illness/disease, radiation, diet etc can all impact one's genetic traits

one's genetic traits can also be inherited from parent's dna and genes, but these can also change as time passes.

You might be interested in
An easy way to calculate the amount of energy available at each level is to
Contact [7]

Answer:

Use the rule that 10% of the energy is transferred between layers.

Explanation:

Energy is transferred between layers of a food pyramid. That means that the  producers at the bottom of the pyramid (e.g. green plants) provide energy to the primary consumers (e.g. rabbits), which are eaten by and provide energy to the secondary consumers (e.g. foxes).

However, very little of the energy is actually transferred to the next layer, roughly 10%. So an easy way to calculate the energy available at each level is to calculate 10% of what was available from the previous level. So if there is 600 kJ available from the primary consumers, then 60 kJ are transferred to the secondary consumers

5 0
3 years ago
Please solve fast in 5 min​
Oksi-84 [34.3K]

Answer:

(C)

Explanation:

answer"A" can be cancelled as prokaryotic cells don't possess a nucleus.

answer"B" can be cancelled as animal cells don't have cell walls.

answer"D" can be cancelled if you know the cell theory.

6 0
2 years ago
Which of the following structures is not found in bryophytes?
WINSTONCH [101]

Answer: The answer is ROOT

Explanation: Briophytas belong to the plantae kingdom, therefore they have a cell wall in their cells, and chloroplasts. They have sporangia (structure where the spores are produced and stored)  but they do not possess proper roots. Instead they have a structure called "rhizoid" whose function is the fixation to the substrate.

3 0
3 years ago
A microbiologist was surprised when he could not recover Helicobacter pylori from gastric biopsies in which organisms were seen
creativ13 [48]

A microbiologist was surprised when he could not recover Helicobacter pylori from gastric biopsies in which organisms were seen in the tissue sections. He was advised to switch from the Campy BAP selective medium to Skirrow's blood agar because the latter is free of cephalothin.

  • A broad-spectrum cephalosporin antibiotic called cephalothin is used to treat severe bacterial infections in the urinary tract, skin, bones, and lower respiratory tract.
  • A beta-lactam, first-generation cephalosporin antibiotic with bactericidal activity, cephalothin is semi-synthetic.
  • Penicillin-binding proteins (PBP) on the inner membrane of the bacterial cell wall are bound by cephalothin and rendered inactive.
  • PBPs take involvement in the last phases of bacterial cell wall construction as well as the remodeling of the cell wall during cell division.
  • PBP inactivation hinders the cross-linking of peptidoglycan chains, which is essential for the strength and stiffness of bacterial cell walls.

learn more about cephalothin here: brainly.com/question/7385027

#SPJ4

3 0
2 years ago
Explain how the root systems in desert shrubs are adapted to help the plants survive drought conditions.
7nadin3 [17]
<span>The first adaptation is its small, waxy leaves which minimize the amount of water that evapo rates from them.</span>
4 0
3 years ago
Read 2 more answers
Other questions:
  • What happens to the concentration of free water molecules when a substance dissolves in the water?
    12·1 answer
  • How does the order of genes in one member of a chromosome pair compare to the order of genes on the other chromosome?
    13·1 answer
  • Select all that apply. Raw materials needed for photosynthesis are _____. chlorophyll carbon dioxide oxygen water nitrogen
    12·2 answers
  • A lipid has three long chains of fatty acids and
    12·2 answers
  • What are some of the effects of human activities on rivers answers?
    10·2 answers
  • Which of the following statements is true regarding
    8·1 answer
  • Some archaea (single cell organisms) live in extremely salty water such as the Great Salt Lake or the Dead Sea. Most types of ce
    15·2 answers
  • Which best describes the organisms in this kingdom?
    6·1 answer
  • Spectrin is a protein found in all eukaryotic cells that provide support to the plasma membrane.
    5·1 answer
  • Only about 10 percent of the energy in an organism is passed on to the next level of a food chain. look at this food chain: gras
    8·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!