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
WINSTONCH [101]
3 years ago
13

When the required direction of transport is opposed to concentration levels, a cell (1)_______ expend energy to force (2)_____ a

cross its membrane.
Biology
1 answer:
VLD [36.1K]3 years ago
4 0
2)Active transport
1)I don't know if it's Active or passive but i am pretty sure it's active
You might be interested in
Stella thinks that if people are exposed ultraviolet light then they are more likely get skin cancer. Stella designs an experime
Scrat [10]
Sample b is the control group because it’s the group not being tested and being kept the same.
6 0
3 years ago
_______ is emotional, mental, and physical fatigue that results in reduced motivation, enthusiasm, and performance, which is ___
igomit [66]

Answer:

Blank 1: Depression, anxiety, or both

Blank 2: Covered or paired

6 0
3 years ago
Read 2 more answers
The Asian long-horned beetle (ALB) hails from East Asia and is an extremely destructive pest of many species of trees. It was di
Dimas [21]

Answer:

Peach orchards

Explanation:

Using the Elton's diversity hypothesis, the worst effect of Asian long-horned beetle will be peach orchard.

This is because according to the Elton's diversity hypothesis, a more diverse population is less susceptible to invasion by exotic pest. of the options, peach orchard is the less diverse and would most likely be more affected.

4 0
3 years ago
Which two factors could lead to the evolution of a species over time?
alina1380 [7]
The answer for this question is C.
8 0
2 years ago
Scientists now know how much carbon dioxide was present in the atmosphere as far back as 800,000 years ago. How did they obtain
sertanlavr [38]

Answer:

Ice core records.

Explanation:

  • The origin of man took place about 200,000 years ago and looking at the records that are stored in the ice cores before the existence of man which were found by the deep drilling of the antarctic and Greenland shows that how the temperatures have changed and as the example of the carbon in the air.
  • As in the 800,000 years go the Carbon dioxide levels were on average of 170 to 280 ppm and now they have crossed the 400 ppm mark also at that time the sea levels were high as 80 feet and now are more than 100 feet.
3 0
3 years ago
Read 2 more answers
Other questions:
  • Many international nonprofit groups watch elections in other nations to make sure elections are fair and free. Which of the foll
    13·2 answers
  • 1. How long is the typical human digestive tract?
    14·1 answer
  • Uniform region occupies an area based on a homogeneous characteristic, for example, __________.
    15·1 answer
  • Draw conclusions: Natural selectionis the process by which favorable traits tend to increase in frequency over time. How does th
    11·1 answer
  • Which time is most likely an outlier
    9·1 answer
  • Help me ASAP 20 points<br><br> How can the World Trade Organization promote biodiversity?
    14·1 answer
  • At what point in the cell cycle does DNA replication occur and why?
    9·2 answers
  • Heat energy is also called ___________ energy.
    10·2 answers
  • Which scenario describes the damage caused by a tornado? a flooded city on the coast with trees damaged by high winds a section
    7·2 answers
  • Plants are more readily manipulated by genetic engineering than are animals because
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!