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
Lostsunrise [7]
3 years ago
6

What are 2 types of scientific investigation?!?!?!?!??!?PLZ I WILL GIVE BRAINLIEST ANSWER AND POINTS

Biology
1 answer:
charle [14.2K]3 years ago
4 0

Answer:

Controlled Investigation

Field Investigation

Explanation: In a controlled experiment, the scientist has total control over the environmental conditions.  The temperature, humidity, amount of light, amount of noise, materials, etc. can all be controlled and monitored by the scientist throughout the investigation.

A field investigation involves observing and measuring plants and animals (including people) in their natural habitat or environment without changing, harming, or altering the setting or any part of the test subjects.  Like in a controlled experiment, the scientist chooses to observe and measure how one change (IV) has a measurable effect (DV) on something else.

You might be interested in
How did the light and dark variations of the moth changer during the Industrial Revolution?
umka2103 [35]
The evolution of the peppered moth is an evolutionary instance of directional colour change in the moth population as a consequence of air pollution during the Industrial Revolution. The frequency of dark-coloured moths increased at that time, an example of industrial melanism. Later, when pollution was reduced, the light-coloured form again predominated. Industrial melanism in the peppered moth was an early test of Charles Darwin's natural selection in action, and remains as a classic example in the teaching of evolution. Sewall Wright described it as "the clearest case in which a conspicuous evolutionary process has actually been observed."
8 0
3 years ago
Read 2 more answers
How does contour plowing in farming help to prevent pollution?
wel

D) Contour plowing is used to reduce erosion and sediment pollution.

Explanation:

Contour plowing in farming helps to prevent pollution by reducing surface erosion of topsoil and preventing sediment pollution.

Contour plowing is a farming technique in which crops are planted along the slopes of hills or contoured areas.

  • The rate at which rain water and precipitation moves along slope terrain is very fast.
  • This causes the washing off of the the topsoil on hills to eroded very fast.
  • Contour plowing breaks the slope and farming is done along movement on the contour.
  • This prevents topsoil erosion.
  • It also prevents sediment pollution in nearby streams and water bodies that are located around the valley at the base of the hill.

Learn more:

Soil erosion brainly.com/question/2473244

#learnwithBrainly

8 0
3 years ago
What is the biggest source of ocean pollution?​
Juli2301 [7.4K]

Answer:

Eighty percent of pollution to the marine environment comes from the land. One of the biggest sources is called nonpoint source pollution, which occurs as a result of runoff. Nonpoint source pollution includes many small sources, like septic tanks, cars, trucks, and boats, plus larger sources, such as farms, ranches, and forest areas.

Explanation:

hope this helps

mark me please

3 0
3 years ago
A geneticist crossed pure breeding black mice with pure breeding brown mice. All the 992 mice in the F1 generation had black coa
uysha [10]

Answer:

C. An approximately three-to-one ratio of black to brown coated mice in F2 is accounted for by the black allele being dominant over the brown allele

Explanation:

Assuming the black genotype is BB and the brown genotype is bb.

At F1:

                 BB   x   bb = All Bb (black)

At F2:

                  Bb   x   Bb = BB (black), 2Bb (Black), bb (brown)

Th ratio of black to brown is 3:1

961 black : 317 brown is approximately 3:1.

Hence, the correct option is C.

<em>An approximately three-to-one ratio of black to brown coated mice in F2 is accounted for by the black allele being dominant over the brown allele</em>

4 0
3 years ago
Is cloud and moisture the same​
Maurinko [17]

no, it can definitely get in the cloud

5 0
2 years ago
Read 2 more answers
Other questions:
  • Which of these statements about animal cells and plant cells is true.?
    15·1 answer
  • What is the advantage of crossing-over?
    15·1 answer
  • A scientist isolates a microbe from a contaminated water source. She thinks that the organism might be a new bacteria that is ca
    6·1 answer
  • Which unit of measurement best matches the size of microorganisms
    10·1 answer
  • Which of the following documents is not a common type of patient correspondence? Which of the following documents is not a commo
    10·1 answer
  • Three reasons why villi are ideal for absorption
    8·1 answer
  • Please answer fast I need the answer by 11.00pm tonight
    9·1 answer
  • What genetic trait(s) do varieties of GMO corn contain that non-GMO
    9·1 answer
  • A tumor that destroys saliva-producing cells can interfere with taste sensation because of _________.
    5·1 answer
  • Electrical stimulation of the brain (ESB) is used mostly on __________. A. Plants B. Humans C. Animals D. Inanimate objects.
    13·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!