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
yan [13]
3 years ago
9

9.) What is active transport?

Biology
1 answer:
taurus [48]3 years ago
5 0

Answer:

A. movement of molecules across a semipermeable membrane against a concentration gradient with a protein

You might be interested in
Which statement best summarizes the outcome of natural selection?
GarryVolchara [31]

i think b is correct


5 0
4 years ago
Read 2 more answers
Which of the following authors were known for their critical writing about the excesses and problems resulting from industrializ
Delvig [45]
The two authors who were known for their critical writing about the excesses and problems resulting from industrialization were Wingspanens and Mark Twain. Charles Wingspanens is better known by the name Charles Dickens. The correct answer is C. 
6 0
3 years ago
Chemical changes
Dmitry [639]
Chage identity of a substance
6 0
3 years ago
Large predators are found at higher trophic levels, what does this mean in terms of energy loss ?
VARVARA [1.3K]

Large predators are found at higher trophic levels because specialized bodies are needed to extract the small energy that gets to them.

The energy that gets to successive trophic levels decreases progressively because much of it is lost as heat. This means that a small percentage of the energy from the producers that form the bases of trophic levels to the predators that are somewhat at the top of trophic levels.

With big body size, the bodies of predators are organized into systems that work together to efficiently extract the small energy that gets to them from immediate lower trophic level.

More on the energy from trophic levels can be found here: brainly.com/question/13375401?

6 0
2 years ago
Help pls!!!!!!!!!!!!!!!!
Aleks [24]

Answer:

1.) Ozone

2.) Carbon dioxide

3.) Oxygen

4.) Water vapor

5.) Sulfur dioxide

Hope this helps!

3 0
3 years ago
Other questions:
  • Describe the structures and functions of the enteric nervous system:
    9·1 answer
  • Which tool would a geologist use to find the color of a mineral in its powdered form? A. acid B. hardness points C. magnet D. st
    15·2 answers
  • The fusiform face area (ffa) in the brain is often damaged in patients with
    5·1 answer
  • Does the study of disease require Science? If yes, why?
    14·1 answer
  • What human activity in 1912 caused problems for the fraser river sockeye salmon run?
    15·2 answers
  • Who came up with the theory of perfection
    8·2 answers
  • What property of water makes it useful to use in car radiators
    12·1 answer
  • Which of the following could cause a habitat change?
    5·2 answers
  • Review a credible scientific website about dog breeding, and choose a specific dog breed you find interesting. Identify the spec
    5·2 answers
  • Marie Curie was a famous French-Polish scientist known for her pioneering research on radioactivity. Her work not only brought h
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!