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
Crank
3 years ago
10

Some countries in Africa have a negative human population growth. This is most likely due to ______________.

Biology
1 answer:
nikitadnepr [17]3 years ago
4 0
Your is answer is B. can I also get brainliest I need it to advance
You might be interested in
In circumstances where the body requires prolonged or increased levels of a hormone, the DNA of target cells will specify the sy
Norma-Jean [14]

Answer:

Up-regulation.

Explanation:

Hormones may be defined as the chemical messengers of the body that can transmit information and maintains homeostasis. The hormones can directly go into the bloodstream and may release through the special ducts.

The receptors of the hormone is required for the binding of the receptors. To maintain the normal homeostasis of the body, the body shows the up regulation and down regulation. In up regulation the hormone levels increases in the body by increasing the receptor on the specific target organ.

Thus, the correct answer is up regulation.

7 0
4 years ago
Protists are a group of organisms that are characterized as Eukaryotes that are neither plants nor animals nor fungi. They are v
Fofino [41]

Protists are a group of organisms that are characterized as Eukaryotes that are neither plants nor animals nor fungi. They are very diverse, and there are many hypotheses about their classification. The cladogram for protists is constantly changing and, sometimes, there are opposite hypotheses that both have data to support them. What is the implication of a changing hypothesis.

It is acceptable because data are still being collected.

It is acceptable everything in science should always change.

It is not acceptable because the correct answer needs to be found.

It is not acceptable because science never changes.

Answer:It is acceptable because data are still being collected.

3 0
3 years ago
Waters ____ makes it excellent solvent for salts like sodium chloride as well as other substances required by cells to carry out
valentinak56 [21]

The right answer is polarity.

In chemistry, polarity is a characteristic describing the distribution of negative and positive charges in a dipole. The polarity of a bond or a molecule is due to the difference in electronegativity between the chemical elements that compose it, the differences in charge that it induces, and to their distribution in space. The more the charges are distributed asymmetrically, the more a bond or molecule will be polar, and conversely, if the charges are distributed in a completely symmetrical manner, it will be apolar, that is to say non-polar.

Polarity and its consequences (van der Waals forces, hydrogen bonding) affect a number of physical characteristics (surface tension, melting point, boiling point, solubility) or chemical (reactivity).

Many very common molecules are polar, such as sucrose, a common form of sugar. The sugars, in general, have many oxygen-hydrogen bonds (hydroxyl group -OH) and are generally very polar. Water is another example of a polar molecule, which allows polar molecules to be generally soluble in water. Two polar substances are very soluble between them as well as between two apolar molecules thanks to Van der Waals interactions.

5 0
4 years ago
Read 2 more answers
Planets are round because of gravity.<br> O True<br> O False
jok3333 [9.3K]
Answer:
True, planets are round because of gravity
7 0
3 years ago
PLEASE HELP ASAP
fgiga [73]

Answer:

The main purpose of the circulatory system is to transport blood, oxygen, nutrients and hormones to and from different cells and tissues throughout the body.

Explanation:

This system works hand-in-hand with the respiratory system to facilitate the exchange of oxygen and carbon dioxide within the blood per the alveoli in the lungs.

7 0
3 years ago
Other questions:
  • Which of the following is not true?
    13·2 answers
  • Maddy, Carole, and Maria are enjoying a day at the beach. They are body surfing and playing on their boards. Imagine that wave A
    6·1 answer
  • What is the difference between monosaccharides and disaccharides?
    14·2 answers
  • Why is gwas used for complex disease studies?
    15·1 answer
  • Which of the following best describes what happens to water molecules after they enter the atmosphere through the process of eva
    7·2 answers
  • A natural source of carbon dioxide in our atmosphere​
    7·1 answer
  • Write a short story about a piece of corn and its journey through the digestive system. It should be in first person. Be creativ
    15·2 answers
  • (edit) i found the answer myself
    14·1 answer
  • Outline the events of protein synthesis (transcription and translation)
    15·1 answer
  • How do i do this:
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!