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
natka813 [3]
3 years ago
11

Both active solar heating systems and passive solar heating systems

Biology
1 answer:
const2013 [10]3 years ago
3 0

Answer:

Hmm.

Explanation:

C. Reduce the need to use fossil fuels

( If it's not C, then try D)

You might be interested in
Which structure functions in hearing?
Keith_Richards [23]
<span>tympanum Im preatty sure</span>
5 0
3 years ago
Read 2 more answers
2. Suppose that you and 19 of your classmates (giving a final population of 10 males and 10 females) are on a cruise, and your s
Trava [24]

Answer:

0.25%

Explanation:

20 people start the new population. So there are 20 genes or 40 alleles for the recessive disorder phenylketonuria. 2 out of 40 alleles are recessive for the condition hence frequency of the allele = 2/40 = 0.05

Frequency of the allele does not change when the population increases so it is in Hardy-Weinberg equilibrium. According to it, if q is the frequency of recessive allele, q² = frequency of the recessive condition

Here, q = 0.05 So,

q² = (0.05)² = 0.0025

In percentage, it is 100 * 0.0025 = 0.25%

Hence, incidence of phenylketonuria in the new population is 0.25%

3 0
3 years ago
Which structure is used by the organism for defense?
serious [3.7K]

Answer:

C.

Explanation:

5 0
4 years ago
PLEASE HELP ME BEFORE I FAIL THE 6TH QUIZ THIS YEAR
Kay [80]

Answer:

I would have to say c I have learned this type of stuff in the past

6 0
3 years ago
Every cell is surrounded by a thin membrane. What is the main function of this cell membrane?. A. to limit the size of the cell
Cloud [144]

Answer: Option B

Explanation: The thin layer that forms the outer covering of the cell is known as the cell membrane. It is composed of the lipid bilayer which as embedded proteins.

This membrane is selectively permeable which means it allows only specific molecules to pass through them.

The main function of cell membrane is to protect the cell from the outer environment and by the invasion of harmful bacteria and viruses.

3 0
3 years ago
Read 2 more answers
Other questions:
  • Chemical messengers used in neuronal communication are referred to as ____. Group of answer choices neuroregulators neuromolecul
    9·1 answer
  • What role does hot ion-rich water play in the process of metamorphism?
    5·1 answer
  • All cells have DNA or pther genetic materials . Is this apart of the cell theory or not apart
    13·2 answers
  • How many of each kind of atom is in one molecules of water
    15·2 answers
  • Scientists suspect that modern horses have different dietary habits than horses that lived long ago. What is the most reliable s
    8·2 answers
  • Mako sharks weigh about 1000 pounds when they reach maturity. Suppose that in a gulf near South America, the following food chai
    11·2 answers
  • Question 19 of 20 :
    6·1 answer
  • Bdofneocnfo coebfle fonrfjw f. e r e d d d d. f d f g d f d f d f f
    11·1 answer
  • Which of the following means 'returning<br> the land to its original condition'?
    13·1 answer
  • Which specific process in the light dependent reactions produce oxygen and hydrogen ions? A- The formation of NADPH
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!