Answer:
b
Explanation:
component of a phospholipid?
Answer:
Phosphate group headTwo fatty acid tailsExplanation:
A phospholipid is made up of a phosphate group head and two fatty acid tails. They are connected by a molecule of glycerol.
To form cell membranes, phospholipids line up with their hydrophilic (water loving) heads on the outside of the cell and their hydrophobic (water hating) tails inside.
A second layer of phospholipids forms with the heads facing inside the cell and tails facing away. This forms a double layer - with the phosphate group heads on the outside, and fatty acid tails on the inside. This double layer, called a lipid bilayer, forms the cell membrane.
How do speed and direction affect velocity?
Answer:
Forces affect how objects move. They may cause motion; they may also slow, stop, or change the direction of motion of an object that is already moving. Since force cause changes in the speed or direction of an object, we can say that forces cause changes in velocity. Remember that acceleration is a change in velocity.
Explanation:
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Which statement best describes a scientific question?
It must be based on a hypothesis.
It must be supported by data.
It must be testable.
It must be original.
Answer:?????
Explanation:
Lipids play a major role in the structure of cell membranes. Which of the following
statements best supports this claim?
A Lipids allow water to freely pass through by forming a hydrophilic bilayer.
B Lipids can be stored in tissues to serve as a source of energy in case of starvation.
C Lipids create a thin hydrophobic layer that helps maintain selective permeability.
D Lipids assist in membrane transport by creating carriers for molecules that are too large
or too charged to pass through the membrane on their own.
How is photosynthesis different from respiration
Answer:
photosynthesis requires carbon dioxide and releases oxygen, cellular respiration requires oxygen and releases carbon dioxide
Explanation:
Nitrogen is found in ?
Answer:
all living organisms on Earth including plants and animals.
Answer:
The year 1772. The place it is found in is living organisms like plants and animals, in the air, a very little in the earths crust, and saltpeter very rarely.
When reproduction involves two parents, which two statements describe the offspring?
A. Offspring differ genetically from one another.
B. Offspring differ genetically from both parents
C. Offspring are genetically identical to one another.
D. Offspring are genetically identical to one parent.
Answer:
I think it's B.
Sorry if i'm wrong tho
Answer:
A and B
Explanation:
I just did the test and i got them right
The majority of the Periodic Table is made of . . .?
Answer:
it is given in your book
Explanation:
in modern graded book of your school
Answer:
METALS
Explanation:
The vast majority of the known elements are metals. Of the metals, only mercury is a liquid at room temperature and pressure; all the rest are solids. Nonmetals, in contrast, are generally poor conductors of heat and electricity and are not lustrous.
Hope it helped. Please mark me as brainlist if it did.
Storage compartments within a cell for water, food, or wastes that are surrounded by a membrane are called ?
Answer:
A vaculole
Explanation:
vacuoles store things that the cell needs.
Why does the author present Redi’s experiments first, followed by Pasteur’s experiments?
Redi’s experiments were more important than Pasteur’s.
The author wanted to present the experiments in historical sequence.
Redi’s experiments completely changed the belief in spontaneous generation.
The author wanted to focus on the maggots that were found in the rotted meat.
Answer:
ThE aNsWeR iS b
Explanation:
Bc I gOt It RiGhT
Answer:
B
Explanation:
What happens to the glucose produced in photosynthesis? Select ALL that apply a The glucose is modified & stored in the plant for later use b The glucose is used directly as energy by the chloroplast c The glucose is moved to the mitochondria where it will be converted into energy d The glucose is released as a waste product
Answer:
The glucose produced in photosynthesis is altered and processed for later use in the plant. The glucose is used directly by the chloroplast as energy. The glucose is transferred to the mitochondria to be transformed into energy.
Explanation: Among the four statements, three of the statements are correct . The fourth statement which states that "the glucose is released as a waste product " is incorrect . This is because oxygen is used as the waste product rather than glucose.
All the three statements are correct about glucose in photosynthesis . The plant uses glucose, with most of it transformed into other carbohydrates, such as starch and cellulose.
A mechanism in which, in the mitochondria of all cells, chemical energy (glucose) is converted into an energy currency (ATP). Glucose and oxygen are converted into water and carbon dioxide. There are two forms namely, aerobic which requires oxygen and Anaerobic which does NOT require oxygen.
Photosynthesis is the process of preparing food in the presence of sunlight, water, and carbon dioxide to make glucose and release oxygen.
The use of glucose produced during photosynthesis is:
a. The glucose is modified & stored in the plant for later use
b. The glucose is used directly as energy by the chloroplast
c. The glucose is moved to the mitochondria where it will be converted into energy
Glucose pathway in plants:
Glucose is the primary source of energy, which is stored in the form of starch. The glucose is broken down through cellular respiration to yield ATP. Glucose is directly used as a source of energy by chloroplasts. Chloroplasts require glucose to convert light energy into chemical energy to carry out photosynthesis. Mitochondria are the powerhouse of the cells, which converts glucose into ATP via cellular respiration. The glucose and oxygen are converted into water and carbon dioxide.To know more about the roke of glucose in photosynthesis, refer to the following link:
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A student is learning about the cell theory in science class, and she applies it to a fern that she is growing in her bedroom. The cell theory states that which of the following characteristics of the fern must be true?
A) The fern's cells came into existence spontaneously.
B) The fern is made up of a collection of cells.
C) The cells that make up the fern are nonliving.
D) The fern is made up of compounds that aren't cells.
Answer:
b
Explanation:
all living things are made up of cells.
Which of the below best describe Mendel's Principle of Dominance and
Recessiveness?
Two factors for a charaterisitic seperate during the formation of egg and sperm.
The factors for different traits are distributed to the gametes independently
O One factor in a pair may mask the effect of another.
O Recessive traits will mask or hide the dominant trait.
Answer:
My answer is, One factor in a pair may mask the effect of others.
Explanation:
I may be wrong. Hope this helps!
The volcanoes can be seen on the topographic map as tall peeks. How many volcanic peaks higher
than 7000 feet can be seen on this map.
Answer: 2
Explanation:
Each line represents an increase in height of 1000ft.
And the volcano peaks are the circles with no other concentric lines inside (meaning that does not grow anymore, so it is the peak).
We can see that the peak of the top volcano has 13 lines, so it is around 13,000 ft high.
The bottom volcano has also 13 lines, so it is also around 13,000 ft high, then in the image we can see two volcanos higher than 7000ft.
How do you explain unspecialized cells?
Answer:
a special kind of cell from an EMBRYO, FOETUS or adult, capable of renewing itself under certain conditions, and of becoming specialized cells that make up the different TISSUES and ORGANS of the body A stem cell remains largely undifferentiated and uncommitted to a specific function,
Explanation:
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ANSWER ASAP!!!
What was the ratio of pea plant offspring with green pods to offspring with yellow pods in Mendel's second breeding?
Mendel found that 166 of the plants bore only yellow peas, and each of the remaining 353 plants bore a mixture of yellow and green peas in a 3:1 ratio
The prefix endo- is Greek for "within". If the word part plasm refers to the "body" of the cell, what does the prefix endo- tell you about the endoplasmic reticulum?
Answer:
Within the Body's reticulum?
Explanation:
the law of mass action suggests that
In a short essay (100–150 words), explain how oxidative phosphorylation—the production of ATP using energy derived from the redox reactions of a spatially organized electron transport chain followed by chemiosmosis—is an example of how new properties emerge at each level of the biological hierarchy.
Answer:
Oxidative phosphorylation is the main process that takes place in the mitochondria to produce ATP by the series of various carriers from NADH or FADH2 to Oxygen molecules. This involves a spatially organized electron transport system in form of a chain of the redox reactions.
The properties that emerge occurs only when there is two or more part of the chain work together and not individually. If all the part such as various part of ETC or ATP synthase and the membrane of the organelle all together workes in an orderly manner then only ATP will be formed by producing H+ protein.
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How does the Alaska blackfish survive in waters with temperatures of 5ºF?
Answer: The Alaska blackfish survives in water with temperatures of 5ºF by producing chemicals that lower the freezing temperature of cellular fluids. This keeps the fluids of the fish from freezing, allowing it to survive.
Answer:
The Alaska blackfish survives in water with temperatures of 5ºF by producing chemicals that lower the freezing temperature of cellular fluids. This keeps the fluids of the fish from freezing, allowing it to survive.
Explanation:
Helpppppppp me pleaseeeeeeeere
Answer:
I think it's a A
Explanation:
What is the function of a carbohydrate?
Answer:
to provide energy, store energy, build macromolecules, and spare protein and fat for other uses
Explanation:
Carbohydrates are the sugars, starches and fibers found in fruits, grains, vegetables and milk products. Though often maligned in trendy diets, carbohydrates —one of the basic food groups are important to a healthy diet
You will conduct a study of the interactions of vegetation, animals, mineral composition of the soil and water levels in a saltmarsh. You are studying the
saltmarsh.
O biosphere
O population
Ο Ο Ο Ο
O community
O ecosystem
Answer:
Population.
Explanation:
Answer:
Population
Explanation:
The musk ox has a large body size and small appendages. How do these characteristics enable it to survive in the tundra?
Answer:
The large body size and small appendages of the musk ox help minimize its heat loss. The smaller the surface area of an animal compared to its weight, the more slowly it loses heat.
Explanation:
The large body size and small appendages of the musk ox helps them to minimize heat loss from the body. The smaller the surface area of an animal compared to its body weight, the more slowly it loses the heat which keeps them warm for longer durations.
What is adaptation?An adaptation is defined as any change in physical or behavioral feature of an animal which helps them in better survival in the environment in which they live. In other words, an adaptation is something an organism does with their bodies which helps them in finding food, water, mates, and shelter which increases the chances of survival.
Musk ox can survive on an extremely spare diet of tundra plants, such as dried grasses, sedges and willows of forests. In the winter, when the temperature of Tundra decreases further the Musk ox can maintain their body temperature and survive in these extreme conditions. The larger body size and small appendages of these animals reduce the loss of heat from the body.
Learn more about Adaptations here:
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Reactants are on the left side of a chemical equation while ______________ are on the right side.
Answer:
Products
Explanation:
I may be wrong, but this is the explanation:
In a chemical equation, the reactants are written on the left, and the products are written on the right. The coefficients next to the symbols of entities indicate the number of moles of a substance produced or used in the chemical reaction.
What is the amount of energy available to secondary consumers in this energy pyramid
Answer:
Energy Pyramid is sometimes referred to as an ecological pyramid or trophic pyramid. It is a graphical representation between various organisms in an ecosystem. The pyramid is composed of several bars. Each bar has a different trophic level to represent.
Answer:
Secondary consumers receive 10% of the energy available
~Secondary consumers receive 10% of the energy available at the primary consumer level (1% of the original energy).~
Explanation:
This pattern of energy transfer continues with each successive level of the pyramid. Secondary consumers receive 10% of the energy available at the primary consumer level (1% of the original energy). Tertiary consumers receive 10% of the energy available at the secondary level (0.1% of the original energy).
The forest at Great Smoky Mountains National
Park is sick, infected by invasive bugs and
plants. Matt Moore, Kaleb Lique Naitove and
Emily Baird of the National Park Service are
some of the field medics trying to keep it alive.
…
The forest they walk through is mesmerizing. The
trees glow green in the Tennessee sun. There
are a lot of tree species in this forest, but the
one they’re looking to treat is an Eastern
hemlock, an evergreen conifer that ranges
from Canada to northern Mississippi. Hemlocks
make up a significant portion of a lot of forests
in the eastern U.S., but particularly so in Great
Smoky Mountains National Park.
…
‘A Tsunami Wave’ Of Adelgids
After about 20 minutes of hiking off-trail in
the park, Moore and company reach the tree
they’ve been looking for. It’s tall, but not
particularly big. You could wrap your arms
around its trunk and still clasp your hands. By
all outward appearances, it’s healthy.
It’s time for the crew to start helping the tree
by injecting it with pesticide. Moore drills holes
around the tree’s base and then Lique Naitove
and Baird attach tubing. A bicycle pump
connected to the tube system begins to fill
it and then the base of the tree with the red
pesticide.
The female wooly adelgid is miniscule, attaching herself to the hemlock’s needle after creating her ova sack, as
shown above.
To Tame A ‘Wave’ Of Invasive Bugs,
Park Service Introduces Predator
Beetles
by Nathan Rott
Instructional Segment 1 | Authentic Reading
1
Copyright © by Savvas Learning Company LLC. ,
It’s called a tree injection system. “We call
them IVs,” Webster says. “They’re out doing
a tree IV.”
It’s like a flu shot that will help the tree ward off
invasive bugs. Most of the trees Webster’s crew
treat just get sprayed with pesticides that have
the same effect. This one’s different because
it’s near a stream and the crew doesn’t want
pesticides getting in the water.
They can’t do it for all of the trees they
treat because there are just too many. The
vegetation crew here has treated more than
a quarter million trees in the Great Smoky
Mountains. The treated ones, like the one they
hiked to, are easy to spot because they look
healthy and are alive. The trees that weren’t
treated are probably dead “or they’re close
or on the way out very soon,” Webster says.
“Probably in the next 10 years.”
The reason for this die-off is the hemlock
woolly adelgid, which is native to Asia.
Scientists believe that the specific kind killing
the Eastern hemlock is from southern Japan.
Adelgids were first discovered in the U.S. in
the 1920s. They were transported overseas
by humans and continue to be spread with
human help, mostly through the purchasing,
selling and transporting of firewood. Today,
the hemlock woolly adelgid is established in
16 states, from Maine to Georgia.
The trees at Great Smoky Mountains National
Park have been infested with adelgids
for longer than a decade. With no natural
predators and no evolved defenses, the
adelgids swept through the hemlocks at the
park like “a tsunami wave,” Webster says.
Many of the park’s hemlocks died quickly;
others are dying more slowly.
…
A Predator-Prey Balance
The pesticide treatment that the park’s
vegetation crew uses doesn’t get rid of the
hemlock woolly adelgid. It protects the tree
that gets it and only lasts five to seven years.
“It’s a stopgap solution,” Webster says.
Because of that, the National Park Service and
scientists have been trying a longer-lasting
one: predator beetles. The hemlock woolly
adelgid, like most invasive species, thrives in
its new environment because it doesn’t have
any natural predators. To change that dynamic,
Great Smoky Mountains National Park has
brought in a few species of predator beetles
from Asia that they’re raising at insectaries, or
nurseries for bugs.
…
Predator beetles will never eradicate the
hemlock woolly adelgid. They’re here to stay.
The hope of the Park Service is that by creating
that balance between predator and prey and
by educating people to not move firewood
from one location to another, they can slow
the spread of the adelgid enough to give
the remaining Eastern hemlocks a chance to
survive and adapt.
READING COMPREHENSION
1. About when were the wooly adelgids introduced to the US and how are they spreading?
2. Describe how the introduction of a predator beetle from Asia might affect the wooly adelgid population.
3. Describe why the hemlock wooly adelgid was able to sweep through the hemlocks of Great Smoky Mountain National Park.
4. Why did the vegetation crew decide to treat the hemlock in the article with a tree IV, instead of using pesticides as they did for other hemlocks?
How do Lichens contribute to primary succession?
Answer:
Lichens grow along with moss before flowers and trees are grow. Lichens grow off rocks and build a strong foundation of dirt and soil for plants and trees to grow.
A student believes that ducks swim faster when they are in cold water. He tests two groups of ducks, one in cold water and one in warm water.What will the student be measuring (dependent variable) in this experiment?
Answer: the ducks are the dependable variable because they are not changing the water is independent because it is changing warm and cold
Explanation:
A plant bending towards a light source is an example of which characteristic of life?
Group of answer choices
metabolism
responsiveness
reproduction
heredity
Answer:
reproduction
Explanation: