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
natali 33 [55]
3 years ago
10

2. Heavy metals that pose health hazards to people and ecosystems occur __________. a. as a by-product of agriculture b. over ex

tended periods of time c. very quickly with tragic results d. all of the above
Biology
2 answers:
Nuetrik [128]3 years ago
7 0

Answer:

Many of these substances, when eaten, cause serious health problems over time.

Explanation:

yep

Levart [38]3 years ago
6 0
The appropriate answer is doing. All of the above. Heavy metals are sometimes used in agricultural chemicals and can contaminate both terrestrial and aquatic ecosystems. Heavy metal concentrations can build up overtime as industrialization progressed. Chemical spills can introduce heavy metals to ecosystems quickly with devastating effects.
You might be interested in
Which layer contains the ground
andrew-mc [135]

Answer:

(A) would be the right answer

Explanation:

Have an awesome day :)

6 0
3 years ago
How much work is done when a force of 15.0 newtons is used to lift a box 3.0 meters into the air?
Annette [7]
W= f x d

W= 15 x 3

W= 45J
4 0
3 years ago
Read 2 more answers
Instead of developing a head and a tail, an abnormal Drosophila embryo develops two tails. This is most likely due to
netineya [11]

Answer:

A mutation

Explanation:

This is abnormal and can only be described as a mutation.

6 0
2 years ago
Read 2 more answers
1. Is the Earth one solid piece of Rock?
kicyunya [14]

Answer:

The Earth is made up of many rocky layers. .

Explanation:

The solid, outer layer is called the crust. Below the crust lies a layer of very hot, almost solid rock called the mantle

4 0
2 years ago
Describe Seymour Brenner's contribution to cracking the genetic code with respect to translation.
11Alexandr11 [23.1K]

Seymour Benzer used phage T4 mutants, Experimental evidence that a gene is a linear sequence of nucleotide pairs. Some regions of chromosomes have "hot spots" for mutations. Benzer's experimental approach to fine structure mapping of the rII locus.  Generated 1612 spontaneous point mutations and several deletions in rII locus identified two complementation groups, rIIA and rIIB.  Mapped locations of deletions relative to each other using recombination.  Mapped locations of point mutations relative to the deletions. Tested for recombination between all point mutations within the same complementation group. 

7 0
3 years ago
Other questions:
  • Compare and contrast cell communication by nerve signal and communication across plasmodesmata.
    9·1 answer
  • what are the similarities and differences of the digestive musculoskeletal and nervous systems of frogs and humans
    9·1 answer
  • Human population growth has remained constant throughout human history. True or false
    14·1 answer
  • Which form of evidence for evolution was not available to Darwin in 1858?
    13·2 answers
  • If a farmer fertilizes her fields and then a huge rainstorm takes place,
    14·1 answer
  • Calculate the gravitational potential energy of a 1,200 kg car at the top of a hill that is 42 m high.
    9·1 answer
  • Johnny finds a hunk of something. It appears to be an element. It melts at 500*C and when it was run over by a train, it flatten
    15·2 answers
  • PLEASE HELP ILL GIVE 50 POINTS AND BRAINLIEST.
    7·1 answer
  • 3. A family rented a pontoon and cruised across the lake at 15 mph for 1.85 hours. How many
    5·1 answer
  • Recalling the Importance of Geographic Isolation
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!