Answer:
friction stops tyres skidding in the road and prevents shoes slipping on the pavement .it grips the ground a prevent sliding
4. In the process of precipitation, water vapor in air cools and becomes water droplets that clump around particles in air to form clouds.
Answer:
I don't know what you ask but just think yes
Explanation:
30 POINTS!!
Using radioactively labeled DNA probes in studies of heredity makes it
possible for a scientist to:
A. study the inheritance of traits that are not seen as a phenotype.
B. make many more copies of a target gene with PCR.
C. produce clones with DNA from two different species.
D. cause new mutations that will not add variation to a species.
Answer it’s right plzzzzzz
Answer:
B. make many more copies of a target gene with PCR.
Explanation:
;D good luck!
Sahara Desert
Which statements describe the Sahara Desert ecosystem? Select all that apply.
It has dry, thin soil.
It has a small amount of rain.
It has many different types of organisms.
Answer:
I would say all three describes the Sahara. Dry, thin soil sounds like sand, which is the soil in the Sahara Desert. This ecosystem definitely has a small amount of rain; that's what defines a desert. Along with that, the Sahara is also very diverse, inhabited by many organisms, from bugs, snakes, and other reptiles to rabbits, jackals, foxes, and even camels. Hope this helps!
The statements that best describe the Sahara Desert ecosystem are as follows:
It has dry, thin soil.It has a small amount of rain.Thus, the correct options for this question are A and B.
What is meany by an ecosystem?An ecosystem may be defined as the place or an area where individuals of different organisms live and interacts with each other for the purpose of food, space, resources, mating partner, etc.
In technical terms, the Sahara is not an ecosystem, it is a desert biome that contains multiple ecosystems. Organisms like Lizards, chameleons, skinks, and cobras are found among the rocks and dunes.
The lakes and pools of the Sahara also contain algae and brine shrimp and other crustaceans. The various snails that inhabit the desert are an important source of food for birds and animals.
Therefore, the correct options for this question are A and B.
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plz help. how did Darwin almost ruin the data he had for his Galapagos finches?
Answer:
by nearly dropping the book in the ocean
How do ecosystems return to normal after a flood?
This really depends on the ecosystem, as each ecosystem may respond differently.
Explanation:
How an ecosystem responds is going to depend on the ecosystem, as each ecosystem may respond differently, and also on the extent and magnitude of the natural disaster. It takes ecosystems a long time to return to semi-normal conditions it can take up to 200 years for a forest to regrow after a huge fire. and that doesn't include the animals displaced/killed in the disaster.
Why do we shiver when we’re cold?
Answer:
A shiver is caused by your muscles tightening and relaxing in rapid succession. This involuntary muscle movement is your body's natural response to getting colder and trying to warm up.
You shiver when your cold because your body kinda since's when your cold and you start shivering to make your body warm-up.
Hope This Helps! Have A GREAT Day!!!Distinguish between an antibiotic and a pathogen.
An antibiotic is designed to kill bad cells to help aid illnesses. However, a pathogen is like a virus or a bacteria that can give a disease. Doctors observe pathogens on a atomic and cellular level to alienate the pathogens weaknesses and what does or doesn't kill it. An antibiotic is commonly used to kill these pathogens and prevent infections.
Basically, the big difference between an antibiotic and a pathogen, is that an antibiotic is used as a source of protection and a pathogen is a seperate living virus (disease). Both are key components of finding cures for harmful viruses and illnesses.
Hope this helps.
. 。 • ﾟ 。 . . . 。 。 . . 。 ඞ ඞ ඞ ඞ ඞ ඞ ඞ 。 . • . [Northstar] was ejected. . . 。 . 。 ﾟ . . , . . .
What word describes the majority of permanent genetic mutations?
-beneficial
-helpful
-minor
-harmful
neurons are activated by which of the following?
Answer:
Myelin sheaths protect, electrically insulate fibers and increase the speed of transmission of nerve impulses. What structural and functional type of neuron is activated first when you burn your finger? Unipolar (psuedounipolar) neurons that are sensory (afferent) neurons.
Answer:
A neuron is activated by other neurons to which it is connected. In turn, its own activation stimulates other connected neurons to activation
Explanation:
Negative feedback: If blood pressure is high, the blood vessels should
A. dilate (open up more)
B. constrict (get tighter)
What would be the complementary sequence: CCGTCATC
Answer:
CCGTCATC
GGCAGTAC
Explanation:
C goes with G. A goes with T.
PLEASSSSSE HELP ME
PLS :(
The following diagram shows the branching tree for four kingdoms and some of their shared derived characteristics.
What shared characteristic can be written at point X? Use complete sentences to explain your answer.
Answer:Multicellular and Eukaryotic are traits that can be true for every Kingdom past Protists on this branching tree diagram. These are the traits which were evolved that Protists just missed, plants and fungi got these traits and transferred them to their descent as well.
Explanation:
Are stars able to adapt to their environment? ANS can stars in the space respond to their changes and reproduce? Pls HELP. NEED FOR BIO
Answer:
Yes. Stars can adapt to their environment. And yes, stars can reproduce when the environment changes.
Explanation:
Answer: Stars are not living organisms. They do not reproduce. In a way, they are their own environment.
Explanation: Living organisms are made of the same "stuff" as the stars, and we depend on our star, the Sun, for energy. But the Sun can not reproduce another sun. It doesn't adapt. Forces of gravity within the galaxy and in the universe determine where stars travel, and their mass and temperature determine how long they will keep shining.
Which of the following must pyruvic acid be converted into before the Krebs cycle can proceed?
a. glucose
b. NADH
c. citric acid
d. acetyl COA
Answer:
Your answer would be d. acetyl COA
Explanation:
I hope this helped!
What often results in a woodland frequented by fire?
A. An understory of oak trees
B. A predominance of slow-growing trees
C. A predominance of pine trees
D. Barren land
SUBMIT
The one that results in a woodland frequented by fire is predominance of slow-growing trees. The correct option is B.
What is woodland?A forest is frequently also referred to as "woodland." But most frequently, the phrase is used by geographers to refer to a forest with an open canopy.
The topmost layer of vegetation in a forest is called the canopy. The crowns, or tops, of trees make up this structure.
Woodland contains a wide variety of plant and animal habitats, some of which need management to be created and maintained.
The complete spectrum of plant life, including trees, shrubs, climbers, perennial herbs, bulbs, grasses, sedges, mosses, and lichens, make up woodland.
Predominance of slow-growing trees is the factor that leads to a woodland that experiences frequent fires.
Thus, the correct option is B.
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1 point
What chemical compound is responsible for the rotten egg smell that is
typical of seal farts?
Hydrogen disulphide
Hydrogen monoxide
Hydrogen peroxide
Hydrogen chloride
Answer:
Hydrogen disulfide
Explanation:
Hydrogen disulfide , which is responsible for the rotten-egg scent, is toxic rather than simply smelly, if inhaled at concentrations above 700 parts per million.
It can be present at very low concentrations well below those considered to induce health effects. The scent of sulfide hydrogen does not affect your well-being.
Answer:
Hydrogen monoxide
Explanation:
It is very toxic to smell in farts
The following are considered organelles except for the -
A. chloroplast
B. cytoplasm
C. mitochondria
D. vacuole
Correct answer get's brainliest please help :(
Answer:
cytoplasm
Explanation:
I think the answer is cytoplasm cause it is the room of the cell
Which property is a physical property? *
Malleable
Molds quickly
Easy to digest
Does not burn
D) Does not burn
Explanation:
cause that's physical duh
Oxygen is produced at what point during photosynthesis?
a. when ATP is converted into ADP
b. when CO2 is fixed
c. when water is split
d. when 3-PGA is converted into G3P
What is a seismometer?
Answer:
an instrument that measures and records details of earthquakes, such as force and duration.
Answer:
It's a instrument that responses to ground motions
Explanation:
Name the 6 roles of proteins in the body.
Answer: 1. Repair and Maintenance
Protein is termed the building block of the body. It is called this because protein is vital in the maintenance of body tissue, including development and repair. Hair, skin, eyes, muscles and organs are all made from protein.
2. Energy
Protein is a major source of energy. If you consume more protein than you need for body tissue maintenance and other necessary functions, your body will use it for energy. If it is not needed due to sufficient intake of other energy sources such as carbohydrates, the protein will be used to create fat and becomes part of fat cells.
3. Hormones
Protein is involved in the creation of some hormones. These substances help control body functions that involve the interaction of several organs. Insulin, a small protein, is an example of a hormone that regulates blood sugar. It involves the interaction of organs such as the pancreas and the liver. Secretin, is another example of a protein hormone. This substance assists in the digestive process by stimulating the pancreas and the intestine to create necessary digestive juices.
4. Enzymes
Enzymes are proteins that increase the rate of chemical reactions in the body. In fact, most of the necessary chemical reactions in the body would not efficiently proceed without enzymes. For example, one type of enzyme functions as an aid in digesting large protein, carbohydrate and fat molecules into smaller molecules, while another assists in the creation of DNA.
5. Transportation and Storage of Molecules
Protein is a major element in transportation of certain molecules. For example, hemoglobin is a protein that transports oxygen throughout the body. Protein is also sometimes used to store certain molecules. Ferritin is an example of a protein that combines with iron for storage in the liver.
6. Antibodies
Protein forms antibodies that help prevent infection, illness and disease. These proteins identify and assist in destroying antigens such as bacteria and viruses. They often work in conjunction with the other immune system cells. For example, these antibodies identify and then surround antigens in order to keep them contained until they can be destroyed by white blood cells.
Explanation:
The Roberts family have had a large family garden for several years. Every autumn, after the first frost, they pull up the dead plants
and cover the garden rows with black plastic. When it is spring and planting time, they plant seeds though holes they have poked in
the plastic. Why do the Roberts use the plastic covering?
A)
The black plastic keeps the weeds from growing in the bare soil.
B)
The black plastic keeps the soil warm so the seeds will grow in the spring,
The black plastic helps the organisms that live in the soil survive the
winter
D)
The garden space will be covered with grass and animals will graze in the
area.
Answer:
ANSWER IS A
Explanation:
A black plastic mulch conserves soil moisture by preventing it from evaporating. Only the exposed soil in the holes where the vegetable plants are growing lose water to evaporation. This means that more moisture is available in the surrounding soil for plant roots, and you spend less time on watering the growing crops.
Explain why the Roberts family uses plastic covering.
Autumn is the season when trees lose their leaves. That is the reason Roberts family pull up the dead plants and cover the garden rows with black plastic.Spring is the season of planting. It is a season when plants spring from the ground and trees come into blossom, following winter and preceding summer.The plastic covering prevents weeds from growing on the bare soil.Weeds are unwanted plants grown at a place at a period of time. Any plants that grows where it is not wanted is weed.Therefore,
The reason why the Roberts family uses plastic covering is because "The black plastic keeps the weeds from growing in the bare soil".
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what do you think is meant by the statement, "DNA unites all organisms"
Answer:
Easy. All life on this planet are products of DNA. It is what we all have in common.
If a cell blocked the entrance of a specific molecule, which organelle would perform that function?
Carbon dioxide does not have a big effect on life on Earth because it makes up less than 1% of our atmosphere.
True
False
Answer:
F
Explanation:
Global warming. In the 1900's when cars were on the up-rise, the CO2 in the atmosphere only consisted of about 0.28%, and summers were only about 65 degrees. Now, in direct coloration with the rising CO2 levels, summers are averaged 78 degrees, reaching highs into the 100's.
PLS HELP!!!!
Can you describe a frogs metamorphosis, including whether it is complete or incomplete
Explanation:
Frog undergoes a complete metamorphosis. It includes the egg, tadpole, froglet and then adult frog stages. In complete metamorphosis the hatchling does not resemble the parent and changes as it grows to be an adult.
During metamorphosis the tadpole will develop back legs first, then front legs. Around 6 weeks of life the mouth starts to widen. Sometime around 10 weeks the froglet’s, as it is now called, eyes start to bulge out and the tail begins to shrink and eventually disappear. When the lungs finish developing the froglet makes it’s way onto the land and, Ta-da! It’s a frog!
Hope this helps!
Obsessive-compulsive disorder is marked by unwanted behaviors that are repeated excessively and are uncontrollable.
Please select the best answer from the choices provided
T
F
Answer:
that is true
Explanation:
i have ocd and i have an uncontrollable urge to clean my trees
The statement "Obsessive-compulsive disorder is marked by unwanted behaviors that are repeated excessively and are uncontrollable." is a true statement. This is further explained below.
What is Obsessive-compulsive disorder(Disease)?Generally, an Obsessive-compulsive disorder is simply a personality condition marked by extreme orderliness, and a demand for control in interpersonal relationships.
In conclusion, Obsessive-compulsive disorder is marked by unwanted behavior.
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When compared to prokaryotic cells, eukaryotic cells
4
A. are simple, smaller, and have DNA floating freely throughout the cell.
B. are complicated, larger, and have DNA captured in a membrane-bound structure.
C. are round and hard, unlike rectangular and soft prokaryotic cells.
D.
are able to move from place to place, unlike stationary prokaryotic cells.
Answer:
B. are complicated, larger, and have DNA captured in a membrane-bound structure.
Explanation:
DNA is found in the nucleus of the cell that is membrane bound structure.
Please help me answer these questions. I need a quick answer please.
1. True or False: Most of the forests you know started out as barren rock piles without any life?
2. The formation of this land is often the result of what two things?
3. The first organisms to move into these harsh growing conditions are known as?
4. True or False: Soil begins to form from the rocks only through the process of Erosion.
5. Decomposition of pioneer species provides what to soil?
6. What is formed during the third phase of primary succession?
7. Annuals only live for how many years?
8. What are two examples of Perenials?
9. True or False: Perennials grow year-round?
10. What is not an example of Softwood trees?
11. Pick all the examples of Hardwood trees *
* Pine
*Oak
* Fur
*Maple
*Elm
12. The ecosystem continues to change until eventually this final ____ is reached.
13. The process of a barren land being colonized by plants for the first time is known as...
14. True or False: Primary succession takes 100 years
15. What is the foundation of any ecosystem?
16. Why are plants needed first in an ecosystem?
17. How do Biomass and Biodiversity change during the process of ecological succession?
18. What can destroy a Climax Community?
19. True or False: A forest must be recovering from a disaster to be going through Primary Succession?
20. Is secondary succession faster or slower than primary succession?
Answer: 1. false
Explanation: life always has a starting place
What causes ocean water near the poles to be colder than ocean water near
the equator?
A. The water is denser and saltier near the equator, so it holds more
heat.
B. Deep-sea vents pump steam into the ocean's conveyor belt near
the equator
C. Because of Earth's rotation, gyres near the poles flow clockwise.
D. The sun's rays strike the water at an angle at the poles.
Answer: Equator is closer to the sun, making it warmer there.
Explanation:
Answer:
d
Explanation: