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
kati45 [8]
2 years ago
15

Change over time; a change in the relative frequency of alleles in a population

Biology
1 answer:
Sever21 [200]2 years ago
7 0

Answer:

Explanation:Population genetics is the field of biology that studies allele frequencies in populations and how they change over time.

You might be interested in
PLEASE HELP ME!! ILL GIVE BRAINLESS!!!
777dan777 [17]

Answer:

1. Global warming is the change in the climate of the earth causing it to heat up whereas the greenhouse effect is a naturally occurring phenomena, constantly occurring due to the atmosphere and sunlight.

2. Carbon dioxide absorbs heat radiating from the Earth's surface and re-release it in all directions—including back toward Earth's surface.

3. Decomposition, ocean release and respiration.

6 0
1 year ago
When a soccer ball is in flight, what forces are acting on it?
jeka94

Answer:

Force applied on the ball when it is kicked, gravitation pull and frictional force

Explanation:

When the ball is kicked it starts accelerating, the moment when it leaves the foot acceleration starts decreasing. Here two more forces start acting on it, one is friction force caused by wind and second is tradition pull of the earth. Both these forces slow down the motion of a soccer ball and it slows down and stops.

4 0
2 years ago
Help me now please for a cookie
Ivan
Without decomposers, dead leaves, dead insects, and dead animals would pile up everywhere. Imagine what the world would look like! More importantly, decomposers make vital nutrients available to an ecosystem's primary producers—usually plants and algae.
5 0
2 years ago
How is enthalpy used to predict whether a reaction is endothermic or exothermic?
Radda [10]

<u>Answer:</u>

<em>329.48 KJ/mol heat is released by the combustion of 2 molof methane</em>

<u>Explanation:</u>

The value of enthalpy determines whether the reaction is exothermic or endothermic. If the enthalpy change is positive, then the reaction is endothermic (heat or energy released) and if the enthalpy change is negative then the reaction is exothermic (heat or energy absorbed).

2CH_4(g)+4O_2(g) => 2CO_2(g)+4H_2O(g)

\Delta H \ reaction=[ 2(\Delta HfCO_2)+ 4(\Delta HfH_2O)]-[2(\Delta HfCH_4)+4(\Delta HfO_2)]

                            =2 ( -(393.5 KJ)/mol)-[2( -74.6 KJ/mol)+4(-241.82 KJ/mol)]

                            = -787 KJ/mol-[ -149.2 KJ/mol-967.28 KJ/mol]

                           = -787 KJ/mol+1116.48 KJ/mol

                                          =329.48 KJ/mol

<em>In this question, </em><em>the enthalpy of formation</em><em> has positive value and hence the </em><em>reaction is endothermic</em><em> in which the heat is released. </em>

3 0
3 years ago
Women gives birth to a baby boy. A few years later she gives birth to another baby boy. What is the probability that her third c
elena-14-01-66 [18.8K]

Answer:

50 %

Explanation:

It is given that a woman gives birth to a baby boy. Her second child is also a baby boy. Now she is about to give birth to her third child. We have to determine the probability of the child to be a girl.

Here, the probability of the child to be a girl would be 50 % or 1 out of 2.

There are two possibilities and the possibilities would result a boy child or a girl child. So there are two possible outcomes and is equally likely with each child birth.

Also each child birth is an independent event, so the probability that the one results will occur do not depend on the previous births.

5 0
3 years ago
Other questions:
  • Kohlberg asked subjects to explain how they would respond to moral dilemmas true or false
    8·1 answer
  • What does it mean to characterize a nebula as diffuse?
    7·1 answer
  • What results in the elimination of an account alert in Medisoft?
    5·1 answer
  • During swallowing, which structures prevent food from entering the nasopharynx and trachea?
    14·1 answer
  • Entamoeba histolytica is transmitted by which of the following? a. mosquitoes (bites) b. inhaling contaminated particles c. sexu
    11·2 answers
  • Which of the following are nonrenewable energy sources? wind oil uranium coal wood
    6·2 answers
  • You are growing yeast cells in a culture. After a few days of consistent growth, you notice that cell growth has slowed consider
    8·1 answer
  • Carrying capacity is blank
    5·1 answer
  • The decay cycle: reduces the amount of dead material returns oxygen to the atmosphere
    6·2 answers
  • Explain TWO likely effects of a relatively small number of red blood cells on the body
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!