Dutch elm disease is a disease of elm trees caused by a fungus. The fungus lives off water and nutrients from the tree. It spreads through water-conducting vessels in the
tree. Gum forms within these vessels in response to the fungus, and the tree weakens and dies. Beetles spread the fungus from infected trees. What is the relationship
between the fungus and the elm tree?
A. predator-prey
O
B. mutualism
C. commensalism
D. parasite-host
How is efficiency related to systems?
Answer:
The efficiency indicates the manner in which the inputs are used by the system. Being efficient means the system uses inputs in a `right' way. If the input-output ratio is adverse, we say that the system is inefficient though it produces the desired output.
Hope this helps! :)
All electromagnetic waves have the same speed in which of the following?
A
alcohol
B
flint glass
C
a vacuum
D
water
Which of the following creates an
allluvial fan
A The buildupci sediment at the mouth of a
3. The seriment deposits by the side of flooding
C. The sticons that leave deepvalleys and
D. There is by ters,
A string is pulled tight. A machine causes it to vibrate at different frequencies. What will happen to the vibrations in the string when they are vibrating at their resonant frequency?
A.
The amplitude of the vibrations will increase.
B.
The frequency of the vibrations will increase.
C.
The wavelength of the vibrations will increase.
D.
The period of the vibrations will increase.
Answer:b
Explanation:
Which characteristic distinguishes the five groups of fungi
Answer:
don't
Explanation:
here is your answer
Answer:
Don't
Here is your answer
Which two systems are used in order for your muscles to churn the stomach and aid in digestion
Answer:
There's longitudinal,circular and obligue (diagonal)
Explanation:
These muscles allow the stomach to churn the food during digestion.
what is plant ????
ASAP
Plants are multicellular organisms in the kingdom Plantae that use photosynthesis to make their own food. They produce most of the world's oxygen, and are important in the food chain, as many organisms eat plants or eat organisms which eat plants. The study of plants is known as the botany.
Please help me, this is due in 10 minutes, will give brainliest if you can show me how to fill it out correctly using the key that is already there, please help!!!! hurry!
Answer:
Answers are in the image
Explanation:
I can't explain how to fill it out right now because i have to go. If i can edit later i will.
What is the ratio of heterozygous
-offspring to total offspring in the Punnett
quare?
Answer:
1:1
Explanation:
In a Punnett Square there's two offspring out of the four that have two different alleles.
help ! look at picture
In the North Sea, eel feed on kelp, and herring feed on eels. Assuming that North Sea fishermen overfish (catch too many) herring to the point that their population greatly decreases, what is the most likely result on the eel and kelp populations?
A.
Eel population will increase while kelp will decrease.
B.
Eel and kelp populations will both increase.
C.
Eel population will decrease while kelp will remain the same.
D.
Eel and kelp populations will both decrease.
Answer:
the correct answer is C just took the test
Explanation:
2. Organisms pass traits to offspring during:
a. Reproduction
b. Growth
C. Digestion
d. Excretion
Answer:
A: reproduction
Explanation:
Plz help fast will give 5 star
True or false, The sequence of DNA determines the traits an organism expresses
Why is it so important to determine the genus and species of an organism causing disease?
Explanation:
because it is very necessary to give or assign a name to a particular organism
Before a plant grown in a greenhouse can be planted in a field or garden, it should first be ______off.
Fill in the blank please.
Answer:
hardening off
Explanation:
which statement is correct about the rocks in this location
They are made up of different amount of minerals and through different ways such as igneous forming from cooled megma.
Identify the by-products of the atmosphere. Briefly state where and how it is formed
Answer:
Earth’s original atmosphere was probably just hydrogen and helium, because these were the main gases in the dusty, gassy disk around the Sun from which the planets formed. The Earth and its atmosphere were very hot. Molecules of hydrogen and helium move really fast, especially when warm. Actually, they moved so fast they eventually all escaped Earth's gravity and drifted off into space.
Earth’s “second atmosphere” came from Earth itself. There were lots of volcanoes, many more than today, because Earth’s crust was still forming. The volcanoes released:
1) steam (H2O, with two hydrogen atoms and one oxygen atom),
2) carbon dioxide (CO2, with one carbon atoms and two oxygen atoms),
3) ammonia (NH3, with one nitrogen atom and three hydrogen atoms).
Much of the CO2 dissolved into the oceans. Eventually, a simple form of bacteria developed that could live on energy from the Sun and carbon dioxide in the water, producing oxygen as a waste product. Thus, oxygen began to build up in the atmosphere, while the carbon dioxide levels continued to drop. Meanwhile, the ammonia molecules in the atmosphere were broken apart by sunlight, leaving nitrogen and hydrogen. The hydrogen, being the lightest element, rose to the top of the atmosphere and much of it eventually drifted off into space.
Now we have Earth’s “third atmosphere,” the one we all know and love—an atmosphere containing enough oxygen for animals, including ourselves, to evolve.
So plants and some bacteria use carbon dioxide and give off oxygen, and animals use oxygen and give off carbon-dioxide—how convenient! The atmosphere upon which life depends was created by life itself.
Explanation:
Will Give BRAINLIEST 100pts
Watch the video linked here: Then, respond to the following questions: a. What are allergies? What is the relationship between allergies and the immune system? allergies b. How does a medicine like Benadryl (a medicine taken to suppress allergy symptoms) affect the immune system? c. How would a medicine like Benadryl affect a person if the allergen were a dangerous pathogen? d. Do you have any allergies? According to the video, what might we infer about your childhood exposure to pathogens based on your current allergies?
Answer:
A. Allergies make a person react to substances in the environment that are harmless to most people but are harmless to the person reacting. Allergic reactions begin in your immune system. When a harmless substance such as dust, mold, or pollen is encountered by a person who is allergic to that substance, the immune system may overreact by producing antibodies that "attack" the allergen.
B. This medication works by blocking a certain natural substance (histamine) that your body makes during an allergic reaction.
C. It can cause a drying effect mouth and eyes, sedation, and sleepiness. However, it can impair innate immune responses to bacteria, and that these drugs should be used with caution in patients with severe bacterial infections.
D. ---
Explanation:
The video was not linked so I can't really answer D for you. Also, I'm sure you're aware of your own allergies. Good luck!
how many cells do a humen bodied have
Answer:
QUESTION:
How many cells does a human body have?
ANSWER:
30 trillion
Humans are complex organisms made up of trillions of cells, each with its own structure and function. Scientists have come a long way in estimating the number of cells in the average human body. Most recent estimates put the number of cells at around 30 trillion. Written out, that's 30,000,000,000,000!
Explanation:
Hope that this helps! :)
Have a great rest of your day/night!
What are the characteristics of saturated fatty acids? Check all that apply. Each carbon atom in the carboxylic acid chain is bonded to at least two hydrogen atoms. At least one double bond links carbon atoms in the carboxylic acid chain. The lipid is a straight chain. The lipid is a liquid at room temperature. The lipid is a solid at room temperature.
Each carbon atom in the carboxylic acid chain is bonded to at least two hydrogen atoms and The lipid is a solid at room temperature are the characteristics of saturated fatty acids.
Where are saturated fatty acids found?
Although plant foods like coconut, coconut oil, palm oil, and palm kernel oil are high in saturated fats, saturated fat is mostly found in animal meals. However, replacing saturated fat with refined carbs will probably negate the benefits of cutting back on saturated fat.
No carbon-to-carbon double bonds can be found in saturated fatty acids, while one can be found in monounsaturated fatty acids and two or more can be found in polyunsaturated fatty acids. Since there are enough hydrogen atoms in the saturated fatty acid molecule, every carbon atom is single-bonded. A carbon atom at the end of a chain of saturated fatty acids is doubly linked to an oxygen atom and singly bonded to a hydroxyl group.
To learn more about saturated fats use link below:
https://brainly.com/question/660916
#SPJ1
Answer:
1, 3, 5
Explanation:
I just answered it, and I got it right
can some1 help me with this
Answer:
Variation allows some individuals within a population to adapt to the changing environment. Because natural selection acts directly only on phenotypes, more genetic variation within a population usually enables more phenotypic variation.
Explanation:
Hope this helps
What are the think discs between vertebrae made up of?
cartilage
joints
ligaments
Answer: Annulus fibrous and a nucleus pulposus
Explanation: An outer ring of fibrous cartilage termed the annulus fibrous, which surrounds a more gelatinous core known as the nucleus pulposus; the nucleus pulposus is sandwiched inferior and superiorly by cartilage end-plates.
Answer:
cartilage
Explanation:
Explain the four main principles of natural selection
Answer:
Reproduction: Individuals mate to produce the next generation.
Individual variation: Individuals differ in various characteristics.
Different needs: What helps one survive does not always help another.
Resource competition: There are limited resources desired by other individuals and species.
Explanation:
PLEASE HELP ME FOR 100 POINTS AND BRAINLIEST!!!
What are homologous structures of the swamp wallaby, common long-nosed armadillo, bearded pig, northern elephant seal and rock cavy.
Answer:
When comparing homologous structures, we are comparing the anatomy of one part of an organism to another and finding it to be structurally similar but functionally may be different. Let’s compare a couple of tetrapods, specifically a human arm and a cat arm.
Both the human arm and the cat arm have a single bone in the upper arm, which we call the humerus, followed by two bones in the forearm–the radius on the more medial side and the ulna on the more lateral side. Both arms also have a common wrist structure followed by a grouping of metacarpals and phalanges. All of these structures are similar; however, these structures do not have the same function. Cats are quadrupeds that use their arms for walking and maybe a little climbing and hunting for outdoor cats. Humans, on the other hand, use their arms and hands for gross motor movement like grabbing, hugging, and lifting, as well as fine motor movement like using tools or even communicating.
A whale flipper and a bat wing are also homologous structures in the same sense as a human arm and cat arm with a humerus, radius and ulna, and so on. But the whale’s “arm” is actually a flipper that it uses to swim while the bat uses its wing to fly.
If a farmer fertilizes her fields and then a huge rainstorm takes place,
what might happen to the fish in a nearby lake? Explain thoroughly and
include vocabulary from each of the cycles.
when do materials or objects change?
Answer:
When a force is applied on them(Change of position), hope this helps you.
During translation, a ribosome binds to
O a protein
O mRNA
O DNA
O peptide bond
Answer:
I think it mRNA will be the answer
When you step on a lego. You push on the lego and the lego pushes back on you. Which Newton's law is that?
Answer:
Newton's 3rd Law
Explanation:
every action has an equal and opposite reaction.
you step on the Lego which pushes a force on the Lego (down), and the Lego gets you back by pushing it's force on you(up).
