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
Darya [45]
3 years ago
12

A scientist was studying the effects of oil contamination on ocean seaweed. He believed that oil runoff from storm drains would

keep seaweed from growing normally. He had two large aquarium tanks of equal size. He kept the amount of dissolved oxygen and the water temperature the same in each tank. He added some motor oil to one tank but not to the other. He then measured the growth of seaweed plants in each tank. In the tank with no oil, the average growth was 2.57cm/day. The average growth of the seaweed in the tank with oil was 2.37cm/day. Based on this experiment, answer the following questions:
What was the question that the scientist started with?
What was his hypothesis?
Identify the independent variable.
Identify the dependent variable.
Identify the control(s).
What did the data show
Biology
1 answer:
SashulF [63]3 years ago
6 0

Answer:

What was the question that the scientist started with?

What affect does oil contamination have on ocean seaweed?

What was his hypothesis?

His hypothesis is that oil run off would keep seaweed from growing normally.

Identify the independent variable.

The oil.

Identify the dependent variable.

The ocean seaweed.

Identify the control(s).

The water.

What did the data show

The data showed that oil contamination in water does in fact have an affect on ocean seaweed. The plant in water without water grew .20 more centimeters than the plant in the oil contaminated water.

<h2>Brainliest please?</h2>
You might be interested in
Washing your hands frequently can prevent the spread of many vectors.
ankoles [38]
The answer to this is false, a vector is a disease usually spread from a bite.
8 0
3 years ago
Read 2 more answers
It’s easy to understand why multiple bands would be present in the lanes containing DNA that has been cut with restriction enzym
bulgar [2K]

Answer:

These bands represent different confirmation of DNA

Explanation:

pGLO DNA is a plasmid DNA that is used as a vector for genetic engineering. Plasmid DNA is found in supercoiled confirmation in vivo. The double helix forms extra twists to easily fit inside the cells. During isolation of plasmid from the cell, nicks can be introduced in the DNA due to harsh isolating methods or contamination by nuclease. As a result the supercoiled confirmation is changed into circular confirmation. It is bulkier than the supercoiled form and travels more slowly. When both DNA stands get cut at the same place, the DNA gets liner confirmation. In the end, supercoiled DNA runs the fastest on gel followed by linear DNA and then the circular DNA.

8 0
3 years ago
Sunny makes a poster showing the levels of organization in the human body.
Zolol [24]
Arrow a should point to muscle tissue, arrow B should point to an organ, arrow c should point to organ system.
4 0
3 years ago
Read 2 more answers
when considering the classification of joints based on the shape of the articulating bone ends, the knee functions as a type of
gavmur [86]

According to the research, the correct option is uni-axial synovial joint. When considering the classification of joints based on the shape of the articulating bone ends, the knee functions as a type of synovial joint are called a <u>uni-axial synovial joint</u>.

<h3>What are uni-axial synovial joints?</h3>

They are synovial joints because they have cartilage and a joint capsule that allow flexion and extension movement, and it is because they move in a single plane or axis that they are considered monoaxial.

In this sense, they can be located in the humeroulnar joint located in the elbow, in the femorotibial or knee joint, allowing the rear sides of the leg to be moved away or closer, and finally in the joints that form between the phalanges of the fingers.

Therefore, we can conclude that according to the research, the correct option is uni-axial synovial joint. When considering the classification of joints based on the shape of the articulating bone ends, the knee functions as a type of synovial joint are called a <u>uni-axial synovial joint</u>.

Learn more about synovial joint here: brainly.com/question/28256806

#SPJ1

8 0
1 year ago
What is one difference between a cell wall and a cell membrane?
VladimirAG [237]
D) cell wall have vesicles and cell membrane have plasmids... Remember cell wall is hard n have rigid shape and it protect de internal organs... But a membrane is soft n nor a rigid shape...
6 0
3 years ago
Other questions:
  • Match these items.
    11·1 answer
  • How to write letter to leader of civil society<br>​
    13·2 answers
  • The primary auditory cortex is located within the _____ cortical lobe.
    15·1 answer
  • N what ways did prohibition cause more problems than it solved?
    8·1 answer
  • How does cancer relate to the cell cycle??
    5·1 answer
  • What effects did the introduction of the nutria have on ecosystems throughout the U. S.?
    15·1 answer
  • Why does a butterfly look like the face of an owl?
    5·2 answers
  • The specific heat of iron is 0.11 cal (g°C) . A cafeteria fork made of iron has a mass of 20 grams. How much heat energy is need
    9·2 answers
  • Which resource is a flammable gas that occurs naturally underground
    11·1 answer
  • Chromosome.
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!