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
Nina [5.8K]
3 years ago
14

2. David is growing algae in a closed bottle for an experiment. The bottle is half full of water and half full of air. David flo

ats the bottle in a pond for three weeks. At the end of the three weeks, David notices that lots of algae grew, but the bottle did not
sink lower in the pond.

Why didn't the bottle of algae get heavier during the experiment?


A. Tiny animals in the bottle ate the growing algae.

B. The sides of the bottle got lighter as the plastic degraded.

C. The bottle has a leak, which made it lose water to the pond.

D. The growth of the algae came from the air and water in the bottle.
Biology
2 answers:
Ipatiy [6.2K]3 years ago
5 0

Answer:

The answer Is D

Explanation:

The growth of the algae came from the air and water in the bottle.

Viktor [21]3 years ago
3 0
For this one it would be B because
You might be interested in
How are seatbelts related to inertia? Write you answer in complete sentences.
Svetllana [295]

Answer:

Inertia- the tendency of an object to resist a change in velocity

Explanation:

Say a car was going at 65 MPH, but suddenly stopped. For all of the people in that car, their bodies would keep moving forward at 65 MPH until stopped by an equal force (say, the thing right in front of each person) The seatbelt is there to protect you from your own inertia.

7 0
3 years ago
Read 2 more answers
Comparing and Contrasting in which class of elements is there a greater range of properties, the metals or the nonmetals? Give a
zmey [24]

Answer:

In which class of elements is there a greater range of properties, the metals or the nonmetals? Give an example to support your answer. Non-metals have greater range of properties given that they exist as solids, liquids and gases. And also that they can polymerize, crystallize and form organic compounds.

6 0
3 years ago
3/10
tresset_1 [31]

Answer: It's known as the continental drift :)

Explanation: "Pangea's existence was first proposed in 1912 by German meteorologist Alfred Wegener as a part of his theory of continental drift. Its name is derived from the Greek pangaia, meaning “all the Earth.”" (copied from google)

3 0
3 years ago
2. An unripe green fruit changes color when it ripens. The reason being:​
kirill115 [55]

Answer:

hope it helps

Explanation:

The green colour of the unripe fruit is due largely to the presence of chlorophylls, and the development of different colours during ripening is due to the disappearance of these pigments and the synthesis of carotenoids.

8 0
3 years ago
Pls help!!! will give u the brainliest and more points it's easy
olchik [2.2K]

Explanation: C.) DNA polymerase

3 0
3 years ago
Other questions:
  • Viscosity is a fluids resistance to __________. a. flow c. liquify b. freeze d. vaporize
    11·2 answers
  • if shoe it to foot , as glove is to hand...complete the following: Simple sugar (monosaccharide) is to carbohydrate as amino aci
    7·1 answer
  • Which statements describe the structure of each type of macromolecule? Check all that apply.
    8·2 answers
  • Do kangaroos drop their babies when they run away
    6·1 answer
  • Which factor was most responsible for the production of oxygen by the elodea? a the presence of light stimulated photosynthesis.
    6·1 answer
  • In an effort to control vegetation overgrowth, 108 rabbits are released in an isolated area free of predators. After 2 years, it
    10·1 answer
  • Which process could be represented by the picture to the right? Mitosis, meiosis, fertilization, or pollination? Which cells are
    13·1 answer
  • How many cranial nerves is it?
    9·1 answer
  • Why must powder be used after cyanoacrylate?
    9·1 answer
  • What are limiting factors affecting the African Wild Dogs carrying capacity ?
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!