What is embedded in the phospholipid bilayer that helps in the movement of larger molecules ?
A.Channel/Transport proteins
B.Salt
C.Water
D.Fats
Answer:
[tex]\boxed {\boxed {\sf A. \ Channel/Transport \ proteins}}[/tex]
Explanation:
The phospholipid bilayer is also known as the cell membrane. It covers cells and regulates the transport of substances. Certain ones can pass and others cannot, depending on certain factors like size and polarity.
Smaller substances tend to diffuse or move across the membrane quite easily. However, larger molecules have a much harder time. Many depend on special proteins embedded in the membrane. These are called transport proteins and they form a channel so large molecules can still move in or out of the cell.
So, salt, water, and fats do not contribute to the movement of larger molecules, but channel or transport proteins do and choice A is correct.
The letters A and a are_____.
What is the main job of the digestive system?
the main job of the digestive system is to turn the food you eat into the nutrients and energy. the nutrients and energy made from the food u eat helps you to survive. your body also uses these nutrients for growth and repair
Question 2 of 10
The electrochemical system in the body for communicating, processing, and
storing information is the:
A. endocrine system.
B. nervous system.
C. brain lobe system.
D. neural feedback system.
SUBMIT
Explanation:
The correct answer is the nervous system. It is because the CNS or the nervous system is the one responsible for sending or transmitting signals from the brain throughout the body in order for it to function, this also involves of having to communicate, process and store memory in an individual.
how does sexual reproduction increase variation within a species
Explanation:
The process of sexual reproduction introduces variation into the species because the alleles that the mother and the father carry are mixed together in the offspring. ... A mate must be found, the egg must be fertilised by sperm, and then the offspring develop.
Answer:
because it increases the gene pool
Explanation:
So sexual reproduction requires two organisms, a male and a female, and their offspring has a combination of both of the parents, this varies the gene pool. Then the offspring creates more offspring, further varying the gene pool.
hope this helps:)
In today's world, a phone call to 911 is designed to ensure that emergency services, including fire, law enforcement, and emergency medical care is accessible to all individuals who find themselves in an emergency. Traffic laws establish that drivers are to move their vehicles to the right of the road and come to a stop in order to allow an emergency vehicle to pass. Emergency medical care is recognized as vital to helping to keep people safe and healthy. Yet, emergency medical services (EMS), as we know them today were only formally established in United States the 1970s. How did the country survive for so long without these services? What did citizens do if they had an emergency? What changes took place that made EMS a part of the emergency care provided for citizens? In this chapter, you will learn about the history and development of EMS in the United States.
OBJECTIVES
Understand the history of EMS in the United States.
Understand the major historical developments that contributed to modern EMS.
Understand the legislative and administrative decisions that help to modernize EMS.
Understand the basic challenges to providing effective EMS care.
VOCABULARY
ambulances emergency medical vehicles designed to transport ill and injured persons
cardiac pertaining to the heart
cardiopulmonary resuscitation CPR , method of keeping a patient breathing and his or her heart beating using manual techniques
heart defibrillators medical devices designed to provide electrical current to restart a stopped heart
Highway Safety Act act passed in 1966 that established a program to improve highway safety and to improve the nature and quality of EMS in the United States
paramedics emergency medical professionals who provide advanced medical care, including life support, during emergencies
pediatric pertaining to children
triage system in which wounded soldiers are treated in order according to the severity of their injuries, regardless of other factors such as rank
Answer:
A
Explanation:
How are tropical rain forests and temperate forests different?
There are two types of rainforests, tropical and temperate. Tropical rainforests are found closer to the equator where it is warm. Temperate rainforests are found near the cooler coastal areas further north or south of the equator. The tropical rainforest is a hot, moist biome where it rains all year long.
known as D
hope this helps <3
Help help please!!!!
Answer:
1. Esophagus
2. Small Intestine
help I need help QUIZ brain list 15
Which of the following statements is true?
Elements in the same group have the same number of electrons.
Seasons are caused by Earth's revolution and tilted axis.
Bases have pH values between 0 and 7.
Protons and electrons are found in the nucleus of an atom.
What are symptoms associated with female reproductive diseases and disorders?
Check all that apply.
bloating
irregular bleeding
impotence
abdominal cramps
sterility
erectile dysfunction
Answer: Bloating, irregular bleeding, abdominal cramps, sterility
Explanation:
Question 4
Which characteristic is shared by all prokaryotes and eukaryotes?
A
ability to store hereditary information
B
use of cellular respiration for energy release
C
use of organelles to control cell processes
D
contain membrane-bound organelles
Answer:
A. The ability to store hereditary information.
Explanation:
Both prokaryotic cells and eukaryotic cells have DNA. In prokaryotic cells, the DNA is not contained in a membrane-bound nucleus while in eukaryotic cells, DNA is contained in the nucleus.
HELP PLEASE I WILL GIVE BRAINLIEST
Answer:
B
Explanation:
HELP PlEASE
Which of the following is NOT a factor that affects climate? Question 6 options: how close you are to the equator how close you are to the ocean how close you are to mountains these all affect climate
Answer:
these all affect climate
Explanation:
The climate of a place is driven by altitude, latitude, and nearness to the ocean, nearness to the equator. The climate is not affected by time, but is affected by all the physical factors such as the earth's rotation, the axial tilt of angle of inclination of sun.1. Why does the immune system make memory cells?
Answer:
The reason the immune system makes memory cells is to help the body recognize a sickness they have experienced before and react to it.
Explanation:
What are alveoli? A. Carbon dioxide molecules B. Part of a red blood cell C. Tubes that connect to the lungs D. Air sacs used during respiration
Answer:
D
Explanation:
Alveoli are tiny air sacs in your lungs that take up the oxygen you breathe in and keep your body going.
NO ONE
literally no one.....
DAD BE LIKE:
OK *THUMBSUP*
Determine whether each is a source of bad ozone or not.
car exhaust
industrial emissions
transpiration of plants
solvent vapors
acid rain
What type of air mass forms over Nashville TN
Five air masses affect the United States during the course of a typical year: continental polar, continental arctic, continental tropical, maritime polar, and maritime tropical. Continental air masses are characterized by dry air near the surface while maritime air masses are moist.
Of the 23 pairs of chromosomes in the human body, how many pairs are homologous?
A. 23
B. 22
Answer:
B. 22
Explanation:
Humans have a total of 46 chromosomes, but there are only 22 pairs of homologous autosomal chromosomes
what is national heritage
Which of the following stars is the brightest?
Sun
Rigel
Pollux
Procyon B
Rigel
is the answer of your question
hope it is helpful to you
How do abiotic and biotic elements aid you in choosing a home?
Answer:
The he interrelated abiotic and biotic factors in an ecosystem combine to form a biome. Abiotic factors are the nonliving elements, like air, water, soil and temperature. Biotic factors are all the living elements .
Explanation:
I hope this help
SOMEONE HELP ME PLEASEEEE ILL MAKE BRAINLIST OR WHATEVER HOW UTS CALLED
Answer:
this would be layer 1
Explanation:
it is closest to the surface which means it will have the most recent fossil if you had a question that said what layer has the oldest fossils it would be 4
Hard structures of corals and shelled organisms are deteriorating because of
1. increasing ocean pH
2. decreasing ocean pH
3. increasing ocean temperature
4. decreasing ocean temperature
Answer:
The correct answer is - 2. decreasing ocean pH.
Explanation:
Many marine organisms such as corals that have hard calcium carbonate shells or skeletons are deteriorating due to the increase of carbon dioxide levels dissolved in marine water which leads to decreasing pH in seawater.
For example, increasing ocean acidification or decreasing pH level due to increased carbon dioxide has been shown to significantly reduce the ability to maintain their skeleton or hard structure or building again. Due to Co2 dissolving in the water means more hydrogen ions in seawater that leads to the concentration of CO3^2- ions actually decreases.
help asap!! please i gotta turn this in soon!
Answer:
i think its b, and d
Explanation:
Answer:
Explanation:
Protein is a nutrient needed by the human body for growth and maintenance. Aside from water, proteins are the most abundant kind of molecules in the body. Protein can be found in all cells of the body and is the major structural component of all cells in the body, especially muscle.
The diagram below represents two flies.They look similar but they can not sexually reproduce with each other and produce offspring. This means that the two flies most likely belong to
(1) the same kingdom and same species
(2) the same kingdom, but different species
3) different kingdoms, but same species
(4) different kingdoms and different species (I can't put the picture my bad)
Answer:
(2) the same kingdom, but different species
Explanation:
I believe that they are from the same kingdom (Animalia) but are different species, which causes them to not be able to breed with one another.
How does matter move through the carbon cycles?
Answer:
Carbon that is used by producers, consumers and decomposers cycles fairly rapidly through air, water and biota. But carbon can also be stored as biomass in the roots of trees and other organic matter for many decades. This carbon is released back into the atmosphere by decomposition, as was noted before.
I hope this Helps!
The main part of a cell that maintains homeostasis is the ______________.
A. The nucleus
B. Cell membrane
C. The head
D. The cytoplasm
Answer:
B. Cell membrane
Explanation:
The heart is a four chambered organ whose walls are made up of entirely muscles. How would a problem associated with the walls of the heart affect the systematic circulation?
which statement best describes the reaction force?
Answer:
I believe the awnser is; The reaction force is the force of the ball away from the racket