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
olga_2 [115]
3 years ago
11

The world's population:

Biology
1 answer:
kati45 [8]3 years ago
6 0
Is unequally distributed because most the population lives by oceans and most live in large cities. Also for countries some countries will only have a few million or a few hundred million while countries like China have more than 2 billion.
You might be interested in
The electrons of photosystem I A. attach to water molecules during the light reaction. B. produce molecules of oxygen that enter
Sergeeva-Olga [200]

Answer:d.are eventually replaced by electrons from photosytem 11

Explanation:there are two photosystems in the photosynthetic process.PSI and PS II. PS I has a reaction center called P700 because it's chlorophyll has a maximum absorption of 700nm wavelength.PSII has a reaction center called P680nm for similar reason.when an excited electron is transferred to P700,it becomes excited.this electron is passed down from from acceptor to another, until it is used to reduce NADP+ to NADPH.this electron is replaced when P680 gets excited by a photo of light and splits water to release electrons , protons and Oxygen

7 0
3 years ago
Please help<br> Explain how independent and dependent variables apply to life
Crazy boy [7]

Answer:

If one wants to estimate the cost of living of an individual, then the factors such as salary, age, marital status, etc. are independent variables, while the cost of living of a person is highly dependent on such factors. Therefore, they are designated as the dependent variable.

4 0
2 years ago
Which organelle helps to make proteins and may be found free floating or attached to the endoplasmic
Juliette [100K]
The ribosomes
they attach to rough endoplasmic  reticulum
7 0
3 years ago
Chemical weathering can be caused by
m_a_m_a [10]
I believe the correct answer is acid rain.
8 0
3 years ago
As part of a blood drive on campus for the American Red Cross, you and your friends have just donated 500 ml of blood. You are n
Lunna [17]

D) no change in cardiac output, increased heart rate, decreased stroke volume occurs after blood donation

Explanation:

When a person donates blood, there is a slight loss of blood volume or hypovolemia. This triggers the baroreceptors of the blood; although does not trigger the osmoreceptor.

The baroreceptor responses are according to the arterial pressure which rises momentarily and results in increased sympathetic activity with decreased vagal activity.

These changes will lead to vasoconstriction, reduced stroke volume, increased heart rate or tachycardia which helps to maintain the cardiac output.

The soreness at the venepuncture site on the skin is due to bruising which is common after any needleprick. applying cold pack, elevating and resting the arm.

In order to compensate for the fluid volume loss and avoid dehydration, one must take plenty of fluids before and after blood donation.

8 0
3 years ago
Other questions:
  • Evaluate three adaptations of insects in terms of role they played in enabling insects to become so diverse and abundant
    8·1 answer
  • On a lab bench, there are four balloons filled with identical volumes of different salt solutions: 0% (balloon A), 5% (balloon B
    12·1 answer
  • Which length is usually measured in micrometers?
    15·1 answer
  • Which is a group of tissues that work together to carry out a common function?
    10·2 answers
  • What are silver carp strengths and weaknesses?
    11·1 answer
  • Plz help me outttttt
    13·2 answers
  • PAL: Cadaver &gt; Muscular System: Upper Limb &gt; Lab Practical &gt; Question 4
    13·1 answer
  • How does thermal energy move?
    11·2 answers
  • Is mars Held in orbit by the gravitational pull of a planet
    5·1 answer
  • ____ produce their effect by preventing an enzyme from breaking down serotonin and norepinephrine, thereby _____ the availabilit
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!