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
GuDViN [60]
3 years ago
12

How many different blood types are there?

Biology
1 answer:
oee [108]3 years ago
3 0
Their is AB, O, B, and A. Which is four. If your were to include whether the blood type was a Negative blood type and positive blood type they're would be . AB+, O+, B+, A+, AB-, O-, B-, A-. Which is eight.
You might be interested in
The ara operon is controlled by a regulator protein that exerts ________.
goblinko [34]

AraC protein certain to the ara operator works as a repressor that avoid transcription of the same ara operon and the araC gene AraC protein is an activator in the presence of arabinose and repressor in the absence of arabinose -With arabinose absent, the AraC protein stays as
a homodimer. One AraC protein put together to the ara initiator and the other protein now binds to a different regulatory site in DNA called the ara operator.

7 0
3 years ago
What do all of the terrestrial planets have in common?
lara [203]
They all have a rocky surface
7 0
3 years ago
A specialized protein in saliva breaks up starch molecules in food into smaller chains of simple sugars. In this reaction, which
Anarel [89]

Answer:

option d, b, c

Explanation:

Starch molecules taken into the mouth from food substances are processed to an extent of 30% of its digestion. this is carried out by a specialized protein/ an enzyme that is present in the saliva; called  amylase or ptyalin. this enzyme acts on the substrate molecule which in this case is starch molecules and convert it into smaller chains of simple sugars that includes maltose and dextrin which is digested in the small intestine.

5 0
3 years ago
Does an island in the ocean have high or low speciation
valina [46]

low speciation because Speciation is how a new kind of plant or animal species is created. Speciation occurs when a group within a species separates from other members of its species and develops its own unique characteristics and also people don't live on Islands so that there wouldn't be people to plant plants and there wouldn't be animals on island because animals won't be able to survive because they have less food

hope this helps

8 0
3 years ago
How are both curiosity and skepticism useful in science?
Yuri [45]

Answer:

Explanation:

Curiosity is the stem from which experiments are born. Curiosity can lead to new innovations. Skepticism can help verify the accuracy of different innovations (i.e. medicine, technology, etc.)

8 0
3 years ago
Read 2 more answers
Other questions:
  • Explain your results in terms of the endocrine system. indicate how the endocrine system is involved in the physiological respon
    5·1 answer
  • Complete this chemical reaction CH4 + 2O2 ­­­­­­­­> _____ + _____ .
    13·1 answer
  • Which of the following are NOT examples of data?
    6·2 answers
  • As the average kinetic energy of a substance increases, the internal energy , and so its thermal energy . as the thermal energy
    13·2 answers
  • Relaxation exercises, recommended for stress management, produce a very relaxed, though still awake state, characterized by ____
    13·1 answer
  • Where does a new plant get the energy it needs to grow when it first germinates?
    12·1 answer
  • I need help in bio it’s due tomorrow pleaseee
    15·2 answers
  • What are two ways rock layers can change after they are deposited horizontally?
    7·2 answers
  • Biomass is a :
    11·2 answers
  • Chromosomal mutations usually Occur during?​
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!