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
faltersainse [42]
3 years ago
8

What is dark matter?

Biology
2 answers:
Bingel [31]3 years ago
4 0

Answer:

I think It's D

Explanation:

If it's not D then it's B

Norma-Jean [14]3 years ago
3 0
Its none of the above :)
You might be interested in
Why does catalase function most efficiently at the pH level of 7
Shkiper50 [21]

Answer: Catalase functions the best at the pH of 7 because the pH of 7 is not too acidic or alkaline. It is on the normal scale, like water. Catalase can't be placed in an acidic liquid. It can not be placed in an alkaline liquid either.

Hope this helps!

3 0
2 years ago
A normal plant cell holds water in the vacuole of the cell. This large organelle also gives the cell support. Suppose a plant is
Aneli [31]
Explain that water moves down a water potential gradient, and the salt solution has a lower water potential than the vacuole so water leaves the vacuole through osmosis

In exam Q's key points are:
- Water potential gradient
- Higher water potential in vacuole
- Leaves through osmosis
6 0
3 years ago
Read 2 more answers
The mass extinctions that occurred 250 million years ago and 65 million years ago may have been due to gradual processes or ____
dusya [7]

The mass extinctions that occurred 250 million years ago and 65 million years ago may have been due to gradual process or Catastrophic events.

6 0
3 years ago
Read 2 more answers
How does the introduction of invasive species such as the brown tree snake upset the stability of the legal system
Assoli18 [71]

Answer:

Invasive species compete for the same natural resources such as food and water which the native species also need for survival.

Explanation:

Invasive species upset the stability of the ecosystem because the prey in their new environment does not have the needed defense against them. They also upset the food chain, consume so much, and overpopulate in the new territory thus causing the extinction of the native species.

The introduction of brown tree snakes in Guam disrupted the ecological system as their population increased rapidly because their preys in this new environment lacked the ability to defend themselves against the brown tree snakes. For this reason, more than twelve native birds in the Guam Islands went into extinction. They also consumed the natural resources needed for the survival of the native species.

3 0
3 years ago
The large winds that circle the Earth occur because the equator
padilas [110]
<span>is warmer then the north and the south poles</span>
5 0
3 years ago
Other questions:
  • The areas of the cerebral cortex involved with conscious awareness of sensation (general somatic sense, vision, hearing, balance
    6·1 answer
  • What does it mean if there are few differences in the amino acid sequence
    12·1 answer
  • In a cell, what is the function of the cell membrane? It controls the entry and exit of substances. It removes waste and stores
    14·1 answer
  • Phyllis is looking for food items high in omega-6 fatty acids. which item should be in her shopping cart?​
    14·1 answer
  • Science help pls,, thank
    12·1 answer
  • A mile long stretch of beach by the freezing Atlantic Ocean includes: penguins,
    12·1 answer
  • Which conditions need to be in balance for cells to function? Check all that apply.
    11·2 answers
  • The landing of pollen on the stigma is followed by the growth of the pollen
    12·1 answer
  • 50 POINTS Plz helps
    11·1 answer
  • How does a ligament injury disrupt affect body tissue?
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!