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
Katena32 [7]
3 years ago
7

Mutation is the only evolutionary mechanism that ________.

Biology
2 answers:
belka [17]3 years ago
8 0
Mutation is the only evolutionary mechanism that does little to change allele frequencies.
snow_tiger [21]3 years ago
4 0

Answer:

is the ultimate source of variation in natural populations

Explanation:

You might be interested in
Please somebody help I will give you points
Digiron [165]
Can you please take a photo that's not upsidedown I might be able to help.
4 0
3 years ago
How do wetlands help keep our water supply pure?
Fofino [41]

Most people in the world get our water from rivers and lakes, including the vast majority of the world’s poorest people. 

But half of the world’s 500 most important rivers – water sources for hundreds of millions of people – are being seriously depleted or polluted.* Approximately 40 percent of the rivers in the U.S. are too polluted for fishing and swimming.**

Water shortages will likely be a fact of life for most people on the planet within the next ten years.*** We can’t afford to pollute and destroy our drinking water sources. But that’s exactly what we’re doing – often without knowing it. 

Forests, grasslands and wetlands are nature’s water filters. They help keep erosion and pollution from flowing into our waters and they slow rainwater down, sending more water into underground supplies. But every year we lose 32 million acres of forest – that's a lot of water filters, gone, every year. 

We are facing dirtier, unsafe water and more risk of water shortages and scarcity. This crisis is real, it’s happening now and it’s getting worse fast.  

The Nature Conservancy partners with people communities in all 50 states and 30 countries to protect water sources. We work on the ground to:

<span><span>Prevent deforestation and destruction of grasslands – nature’s water filters</span><span>Restore forests and grasslands that have already been lost or damaged and sending erosion into our waters</span><span>Equip farmers with practical ways to keep harmful run-off out of our waters</span><span>Restore floodplains that act as sponges and send water down into groundwater supplies and filter pollution out of rivers</span><span>Create new science that helps pinpoint the greatest threats to our waters and the most effective ways to combat them</span></span>

But we understand that nature won’t solve everything, so we’re finding new ways to reduce water use. More than 70 percent of water withdrawn from nature goes to agriculture, so we’re helping farmers access new technologies and practices that use less water while continuing to produce the food we need.

6 0
2 years ago
2. What is the definition of a relation?
makvit [3.9K]

Answer:

C. An association between two sets of data

5 0
3 years ago
Why must everything but the independent
Maurinko [17]

Answer:

A: since a graph can only hold one variable

Explanation:

Hopefully this helps!

8 0
3 years ago
Which eagle fly swim or crawl​
jarptica [38.1K]

Answer:

fly

fly

fly

fly

fly

fly

fly

Explanation:

.

4 0
2 years ago
Other questions:
  • What type of organisms use photosynthesis
    11·1 answer
  • Organisms do not depend on wind for food
    5·1 answer
  • The location of the water table is subject to change true or false
    12·2 answers
  • A student reported that a limp stalk of celery became crisp when placed in ice water
    6·2 answers
  • Food webs show the movement of energy through an ecosystem. The energy decreases as it moves from organism to organism. Where do
    11·1 answer
  • Relatively large areas of land and water ecosystems are needed to provide the resources used by a typical American, as identifie
    8·1 answer
  • What’s wrong with a gorilla if she won’t eat and interact with other gorillas in the zoo
    15·1 answer
  • The somatic cells of mosquitoes contain six total chromosomes. Based on this information, answer the following questions.
    11·1 answer
  • A plant grows faster and fuller due to large amounts of fertilizer. If the plant cross-pollinates with another plant later, how
    8·1 answer
  • What are the components of the CNS ?
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!