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
Arte-miy333 [17]
3 years ago
7

Define the three different types of densities:

Biology
1 answer:
damaskus [11]3 years ago
5 0
1) Arithmetic density- the number of people per square unit of land 
2) Physiologic density-  Is the number of people per square unit of farmland.
3) Agricultural density- is the number farmers per unit of farmland.

You might be interested in
The main difference between deserts and steppes is the
attashe74 [19]
They <span>are determined by the mean annual temperatures and precipitation. With a little less rain the </span>steppe<span> could easily turn into a </span>desert<span>. More rain and it would be classified a prairie.</span>
8 0
3 years ago
Read 2 more answers
One of the effects of the hormone secretin is to stimulate the release of bicarbonate ions into the duodenum, which neutralizes
Alecsey [184]

Answer: One consequence of neutralizing the pH in the intestine is that ENZYMES THAT CATALYZE THE HYDROLYSIS OF CARBOHYDRATES ARE ACTIVE.

Explanation: During digestion, partially digested food particles are transported from the stomach to the first part of the small intestines, that is, the duodenum. The food particles that are coming from the stomach are acidic due to the secretion of hydrochloric acid in the stomach. This acidity has to be removed when the food particles get into the duodenum, this is because the enzymes that are needed to break down carbohydrates in the duodenum can not work in acidic medium. Thus, in order for the  pancreatic amlayse enzyme to become active and to complete the break down of carbohydrate in the duodenum, the secretin hormone has to stimulate the release of bicarbonate that will neutralize the acidic partially digested food particles from the stomach.

4 0
3 years ago
Ill give a Brainliest if it is right
lukranit [14]

Neither of these are minerals, B.

Its not A because, they are not natural materials but instead made up of natural materials, like a rubber tree.

Its not C because, like I said, plastic is made from rubber trees, this garentees it doesnt have a crystal structure.

Its not D because, concrete is not a mineral and has indefinite composition.

4 0
2 years ago
which of the following is found in both prokaryotic cells and eukaryotic cells? a)nucleus b)cytoplasm c)mitochondria d)chloropla
prohojiy [21]

Answer:

cytoplasm

Explanation:

Both prokaryotic and eukaryotic cells have structures in common. All cells have a plasma membrane, ribosomes, cytoplasm and DNA... the cytyis all the contents of the cell inside the cell memey, not including the nucleus.

8 0
3 years ago
PLEASE HELP<br><br> How do Creeping Thistles (flowering vascular plant) adapt to life on land??
yulyashka [42]

Creeping thistle continuously survives through easy germination of seeds. The Creeping thistle seed can be buried in undisturbed soil for over 20 years and still become growable. And also, the roots help in their growth. They absorb nutrients and regenerate to form new plants. Although the roots may be able to penetrate some meters down, most regeneration occurs within or just below the plow layer. Portions of the adjacent roots become thick due to the developing storage tissue which is where new shoots are formed.

5 0
3 years ago
Other questions:
  • Sucrose is an organic compound made by plants for quick energy. Sucrose is classified as a(n)
    13·1 answer
  • Significant threats to the environment include
    11·2 answers
  • In science class,maria observes that a white colored flower has shades of red when its watered with red colored water. She forms
    15·1 answer
  • Astronomers believe distant planet could be ‘more hospitable’ than earth. true or false
    9·1 answer
  • Food is moved in wavelike contrations called ________.
    13·1 answer
  • The same friend asks how long humans can live. The nurse would reply that currently the maximum life expectancy of humans appear
    8·1 answer
  • What happens to an enzyme's structure as it<br> exceeds the typical human body temperature?
    15·1 answer
  • The primary reasons agricultural productivity increased during the Green Revolution was been a combination of fertilizers, crop
    14·1 answer
  • Which of the following statements is the best description of the life cycle of plants such as ferns?
    12·1 answer
  • If someone was suffering from scurvy, what would they be deficient in?
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!