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
Colt1911 [192]
3 years ago
15

Where do the primary threat to rivers come from?

Biology
1 answer:
Lisa [10]3 years ago
3 0

The main threats to river basins (the entire area drained by a river) continue to mount.

Construction of large dams and physical alterations of river flow by straightening and deepening of river courses.

This disrupts the natural flooding cycles, reduces flows, drains wetlands, cuts rivers off from their floodplains, and inundates riparian habitats, resulting in the destruction of species, the intensification of floods and a threat to livelihoods in the long term.

You might be interested in
What function does a flagellum have in a cell
Mars2501 [29]

Explanation:

Flagellum, plural flagella, hairlike structure that acts primarily as an organelle of locomotion in the cells of many living organisms. Flagella, characteristic of the protozoan group Mastigophora, also occur on the gametes of algae, fungi, mosses, slime molds, and animals.

Flagellum Definition

A flagellum is a microscopic hair-like organelle used by cells and microorganisms for movement. The word flagellum in Latin means whip, just like the whipping motion flagella (plural) often use for locomotion. Specialized flagella in some organisms are also used as sensory organelles that can detect changes in temperature and pH.

3 0
3 years ago
Can a mutation in any cell of an organism can be passed on to offspring of the organism
kozerog [31]
Yes it can (I have to type 20 characters)
8 0
4 years ago
What is an autotroph and what is a heterotroph
Usimov [2.4K]

Autographs are organisms that make their own food/energy. The only example I can think of (and the only one I think exists) is plants. They make glucose from the sun and other stuff

Heterotrophs are organisms that needs to get its energy from other sources. You and me are heterotrophs (well unless you are a plant lol). We have to eat food to get energy to survive.

Hope this helped!!!

3 0
3 years ago
Read 2 more answers
Why does the presence of a hair follicle have forensic importance?
Nikolay [14]

Answer:

C

Explanation:

Our hair follicles hold DNA just as do our finger nails, saliva, and blood.

7 0
3 years ago
Read 2 more answers
Which of the following increases genetic variation by forming entirely new alleles?
Ket [755]

Answer:

gene flow

Explanation:

type of gene flow

5 0
3 years ago
Other questions:
  • Can someone help me with this question because I'm stuck
    8·1 answer
  • 1. Diabetes is a disease where the body is unable to produce enough insulin in the pancreas to help lower the levels of blood gl
    14·1 answer
  • What percent of earth is made up of water?
    14·2 answers
  • Typically best practices would dictate that a guest account would be placed in a(n) __________, isolated from the production net
    14·1 answer
  • What color does a test solution turn when protein is present
    15·1 answer
  • How is energy lost from each trophic level?
    9·1 answer
  • Which water source may become polluted as it travels over land?
    9·2 answers
  • According to the cell theory, which of the following best describes the role of cells in living organisms?
    6·1 answer
  • Sinteza unei enzime implicate în procesul de transcripţie se realizează pe baza informaţiei unui fragment de ADN bicatenar, alcă
    6·1 answer
  • A cross between a white horse and a brown horse produces offspring that are golden in color. The possible
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!