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
egoroff_w [7]
3 years ago
12

Why are there more people with sickle cell disease in one part of the world than in other parts?

Biology
1 answer:
rewona [7]3 years ago
3 0
A :-) Sickle cell disease occurs more often among people from parts of the world where malaria is or was common. It is believed that people who carry the sickle cell trait are less likely to have severe forms of malaria.
You might be interested in
Which organelle fills the cell, holds organelles, and is the place for most of the metabolic activity in the cell occur?
Andru [333]

A. Cytoplasm


(The Nucleus is the control, site of DNA)

Cell wall is in plant cells, giving stability and protecting the cell from rupturing. DNA is stored in the Nucleus, not a organelle.


The answer is Cytoplasm, C.

8 0
3 years ago
Read 2 more answers
All of the following are environmental influences except ____________. A. Living conditions B. Genes C. Prenatal care D. Media P
larisa [96]

Answer: B. Genes

Explanation:

Got it right on the test.

7 0
2 years ago
After the first day or so of fasting, most of the body's stores of __________ are depleted.
liubo4ka [24]
After the first day or so of fasting, most of the body's stores of <span>glycogen </span><span>are depleted.
</span>
7 0
3 years ago
Read 2 more answers
A population of mice is evenly divided into two groups, and each group is placed on an isolated island with no existing mouse po
Lelechka [254]
The mouse population would be even on both islands
5 0
3 years ago
Read 2 more answers
What is the biological significance of the temperature at which the amylase
kati45 [8]

Answer & explanation:

Amylase is part of enzymes, a group of large peptide molecules (formed by amino acids) whose role is to catalyze reactions in order to facilitate the synthesis of other biological molecules.

Amylase is found mainly in saliva (in the form of salivary amylase, or ptialin), acting in the breakdown of starch and glycogen in foods, reducing them to smaller particles, facilitating their digestion and absorption.

The action of enzymes depends on certain specific conditions, called optimal conditions. In the case of <u>amylase</u>, it depends on an optimum pH of 7 (neutral) and an optimum temperature of approximately 37 ° C.

This enzyme can still act between 35 ° C and 40 ° C, but below 35 ° C it is inactivated, preventing its functions from being performed, and above 40 ° C it suffers denaturation, causing changes in its structures.

Thus, it is concluded that the <u>temperature</u> (under optimal conditions) is important for enzymes because it keeps their actions and structures in proper operation.

3 0
3 years ago
Other questions:
  • Help wanted, if you could further explain that would help a lot too.
    5·1 answer
  • The most common mineral group contains ___ minerals
    5·2 answers
  • Which branch point represents the most recent common ancestor of all bears?
    7·1 answer
  • What is thought to have contributed to the evolution of eukaryotes?
    10·1 answer
  • What feature connects an island to the mainland or to another island
    12·1 answer
  • A force of 13 N is applied to the handle of a screwdriver being used to pry off the lid of a
    8·1 answer
  • Why does hurricane season occur from late spring through fall in the Atlantic region?
    12·2 answers
  • Why did the atomic theory change?
    10·1 answer
  • What is a sedimentary rock?
    9·1 answer
  • What is your favorite type of animal ? (I'm board)<br> I like dogs wby
    5·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!