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
hram777 [196]
3 years ago
10

The polar head of a phospholipid is made of _____ molecules.

Biology
1 answer:
tia_tia [17]3 years ago
7 0

b. phosphate. The polar head of a phospholipid is negatively charged and is made up of phosphate molecules. This polar head region attracts water (hydrophilic) and is positioned outward to interact with water.


You might be interested in
Such antimicrobials exhibit a range of cellular targets, the ____________ selective being the most effective against the widest
Inessa [10]

Answer:

least, most

Explanation:

Antimicrobials are substances that function by limiting the activities of microorganisms either by killing them or by inhibiting their growths.

Antimicrobials that exhibit a wide range of cellular targets are least selective of the type of cells they kill or inhibit. They are also said to have a wide spectrum of activities.

On the other hand, antimicrobials that exhibit a narrow range of cellular targets are most selective of the type of cells they kill or inhibit. They are said to have a narrow spectrum of activities.

3 0
3 years ago
Transport of materials into a cell against a concentration gradient, from low to high, requires
horrorfan [7]

protein pumps and energy

4 0
3 years ago
Read 2 more answers
which of the following distinguished living things from nonliving things? A. living things are made up of cells nonliving things
katovenus [111]
<span>the answer is B. living things</span>
8 0
3 years ago
Read 2 more answers
Shivering warms the body by causing involuntary muscle contractions, which two body systems are working together to help you mai
Elodia [21]
Circulatory and muscle system
4 0
3 years ago
Lee la siguiente situación, y diseña un experimento. (No tienes que realizarlo)
Lynna [10]

Answer:

- Luis quiere saber si los cristales de yodo pueden disuelverse en distintos líquidos  

- Luis necesita cristales de yodo, agua, alcohol y aceite mineral

- La hipótesis de trabajo puede ser: "los cristales de yodo se disuelven en distintos líquidos", con lo cual la hipótesis alternativa indicaría que los cristales de iodo no se disuelven

- La recopilación de los datos puede consistir en la realización de tres experimentos en los cuales los cristales de yodo son sumergidos en agua (1° experimento), alcohol (2° experimento) y aceite (3° experimento).  

Explanation:

En el método científico, la pregunta científica refiere a una cuestión particular la cual es planteada con el objetivo de responder algún aspecto particular del mundo real. A partir del planteamiento de una pregunta científica es posible formular dos hipotésis denominadas hipotésis nula e hipótesis alternativa, las cuales representan supocisiones contrapuestas que permiten contestar dicha cuestión. Subsecuentemente, los científicos realizan experimentos y/o observaciones que permiten recopilar datos cuyos resultados son utilizados para confirmar (o rechazar) la hipótesis nula. Por otra parte, es necesario resaltar que durante el proceso de experimentación se requiere de la utilización de controles positivos y negativos que permitirán corroborar si dichos experimentos fueron realizados correctamente.

4 0
3 years ago
Other questions:
  • What is one reason for an even distribution pattern among a particular species in a community?
    12·1 answer
  • A plant with yellow flowers was crossed with a plant with red flowers. all of the numerous offspring had red flowers. what does
    6·1 answer
  • A codon is a triplet base sequence in<br> A.tRNA<br> B.DNA<br> C.mRNA<br> D.rRNA
    15·1 answer
  • Between mitosis and meiosis which of the two is where DNA is copied once?
    12·2 answers
  • The allele for red hair is recessive to the allele for black hair. What colour hair will a person have if he inherits an allele
    15·1 answer
  • Which of the following is true of artificial selection?
    8·1 answer
  • Question 4
    7·1 answer
  • What are some characteristics that protists and fungi both have that make them eukaryotes?
    11·1 answer
  • Temperature is related mostly to the
    9·1 answer
  • Why are all solar eclipses visible from a much smaller part of Earth than lunar eclipses?
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!