Answers
Answer:
ok
Explanation:
Answer:
A. Both of them are correct
Explanation:
Mechanical waves include the movement of water, from ripples in a puddle to giant rolling waves on the surface of the open ocean. For example, water waves (mechanical waves) can transfer energy across an entire ocean basin, even though individual water molecules do not travel great distances.
Electromagnetic propagation through water is very different from propagation through the air because of water's high permittivity and electrical conductivity. Plane-wave attenuation is high compared to air and increases rapidly with frequency.
Related Questions
The flexible outer layer of an animal cell is called the cell wall.
O True
O False
Previous
Answers
Answer: false
Explanation: Animals do not have cell walls in their cells, instead they have membrane. Their membrane is the outer layer that is very flexible. So, the answer to the question should be false.
Answer:
false
Explanation:
What chemical elements are present in proteins?
Answers
Goss discovered the genetic link between hybrids.
True
False
Answers
Answer: False
Explanation: Im sorry if im wrong.
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The eggs of a cone bearing plant:
receive sperm through the development of tubes
are held on the sticky fluid of the female cone
receive pollen from the wind
Answers
Answer:
Receive pollen from the wind.
Explanation:
The sperm of the male cone floats through the air and lands on the scale of the female cone. Sperm cells move through the pollen tube of the female cone and one of them fertilized an egg cell which eventually turns into a seed.
Answer:
The eggs of a cone bearing plant receive sperm through the development of tubes.
Explanation:
Cone-bearing plants have two types of cones: female cones and male cones. Reproduction begins when one of the pollen grains from inside a pollen sac on the male cone floats through the air to the scale of a female cone. A pollen tube then grows from the pollen grain toward the female ovule. Sperm cells move through the pollen tube and one of them fertilizes an egg cell, which then develops into a seed. The winged seed floats to the ground and begins to germinate. As the top of the seedling reaches for light, the hypocotyl straightens and the cotyledons spread out.
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Certain bacteria live in the intestinal tract of other organisms. Which of the following statements describes how these microorganisms help maintain the health of other organisms?
A) They produce antibiotics which destroy other microorganisms.
B) They decrease the amount of vitamins in the large intestine.
C) They purify food as it travels through the digestive system and remove contaminants.
D) They metabolize substances and break down food during digestion
Answers
Answer:
D
Explanation:
Many bacteria are known for helping humans digest and metabolize foods that we wouldn't be able to do without them.
How do we determine climate change (amount of time, trends, etc)?
Answers
Answer:
xlimate change is when the climate change due to green house effect
An ice core.
Each layer in an ice core tells scientists something about Earth's past.
A student wants to compare how long a flashlight will continue to shine using different brands of batteries. How can the student make sure that the test is fair?
Answers
Answer:
start with unused fresh out of the pack batteries
Answer:
THE TYPE OF FLASHLIGHT USED
Explanation:
Most functions of a prokaryotic cell are controlled by the cell's nucleus. True or false?
Answers
Answer:
False.
Explanation:
A prokaryotic cell doesn't even have a nucleus.
Do y'all know mykell watts
Answers
Answer:
no,why? and, i dunno.
Explanation:
Answer:
Mykel Watts is the leader of a small group called the Lupikids.
Explanation:
Write the overall equation for photosynthesis using words?
Answers
Answer:
carbon dioxide + water =glucose +oxygen
Explanation:
hope this helps :)
The overall equation for photosynthesis using words is:
Carbon dioxide + water + sunlight energy → glucose + oxygen
Photosynthesis in plant chloroplasts and photosynthetic microorganisms is a complex metabolic process. Photosynthesis equation: [tex]CO_2 + H_2O + sunlight = glucose (C_6H_{12}O_6) + O_2.[/tex]
Photosynthesis converts carbon dioxide and water into glucose and oxygen. Special pigments like chlorophyll collect sunlight and transform it into chemical energy.
Photosynthesis underpins the food chain and sustains life on Earth. Primary producers, plants synthesise glucose that sustains all other organisms' growth and development. Photosynthesis provides oxygen for respiration and regulates carbon dioxide levels, preserving Earth's atmosphere.
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Using information from the diagram, state one reason why the movement in the third image represents active transport
Answers
Answer:
A protein or ion has passed through the "pump" or carrier proteins and move within the cell.
Nvm short and sweet ;)
Further info..
To move substances against a concentration or an electrochemical gradient, the cell must use energy. This energy is harvested from ATP that is generated through cellular metabolism. Active transport mechanisms, collectively called pumps or carrier proteins, work against electrochemical gradients. With the exception of ions, small substances constantly pass through plasma membranes. Active transport maintains concentrations of ions and other substances needed by living cells in the face of these passive changes. Much of a cell’s supply of metabolic energy may be spent maintaining these processes. Because active transport mechanisms depend on cellular metabolism for energy, they are sensitive to many metabolic poisons that interfere with the supply of ATP.
PLEASE HELP!!! (ANSWER APPROPRIATELY)
Answers
Answer:
With the boost in warmer weather and excess water, populations will boom
Explanation:
Yabbies will do best at a water temperature of between 12°C and 20°C but they will tolerate water that is a little colder or warmer. Complete immersion in water is not essential for life for the yabby. If its gills are kept moist (humid air is sufficient), it can absorb oxygen from the air and survive for many days out of water. To breed, however, it must be in water. With the water needed for breading and warmer weather used for breeding, population numbers for the Yabbies should rise.
Why are the elephants facing a crisis?
Answers
Answer:
Many elephants are killed by poachers for their ivory tusk, the number of elephants in the world are decreasing
Explanation:
Google but in my own words
4) How many milligrams are in 1,455 grams?
1,455,000 mg
145,000 mg
1,450 mg
1.45 mg
O
145 mg
Answers
Grams can be converted into milligrams by multiplying the amount in grams by 1000. Therefore, 1455 grams will be equivalent to 1,455,000 mg. Thus, the correct option is A.
The conversion of metric units from one unit to another can be done by multiplication or division by powers of 10. If the unit is to be converted into a bigger unit, it has to be divided, whereas if the unit is to be converted into a smaller unit, it has to be multiplied.
Thus, the conversion of gram to milligram is conversion of a unit into a smaller unit and the amount, therefore, has to be multiplied.
There are 1000 milligrams in 1 gram. Therefore, 1,455 grams will have 1000 × 1,455 = 1,455,000 milligrams.
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Consider this animal cell.
The organelles in an animal cell are labeled. Part G is a bean-shaped structure with folding inside.
Which organelles are labeled G?
Answers
Answer:
Its Mitochondria
Explanation:
Which molecules prevent cell membranes from dissolving in water?
O A. Nonpolar fatty acids
O B. Polar phosphate groups
C. Adenosine triphosphates
D. Large globular proteins
Answers
Explanation:
a nonpolar fatty acids
hope this help u
A non-polar fatty acids prevent cell membrane from dissolving in water. The correct option is A.
What is a cell membrane made of?The cell membrane, also known as the plasma membrane, is uncovered in all cells and serves to separate the cell's interior from the outside environment.
The cell membrane is made up of a semipermeable lipid bilayer. The cell membrane controls the transport of materials into and out of the cell.
These are glycerophospholipids, which are molecules made up of glycerol, a phosphate group, and two fatty acid chains. Glycerol is a three-carbon compound that serves as the membrane lipids' backbone.
As, these non-polar fatty acids are insoluble in water, so it protect the cell membrane from water. It actually prevent the cell membrane to get dissolve in the water.
Thus, the correct option is A.
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Golden-cheeked warblers are an endangered species of bird that nest only in central Texas. They build their nests using bark from ash juniper trees and feed on spiders and insects. Brown-headed cowbirds sometimes lay eggs in warblers' nests, killing the warblers eggs. Blue jays are known predators of the golden-cheeked warblers' offspring. The survival of golden-cheeked warblers would be most threatened by an increase in the —
Answers
Answer:
C. clearing of ash juniper trees for farmland
Explanation:
Golden-cheeked warblers will be in more danger if "clearing of ash juniper trees for farmland" will increase because juniper trees provide barks to build the nest for Golden-cheeked warblers, if Golden-cheeked warblers will not get enough barks to build the nest, they will not able to reproduce and their population will decrease further.
Hence, the correct answer is "C".
please help me! Give the chemical name of a common example of an acid or a base used to clean grease
Answers
Answer:
Potassium or sodium hydroxide (KOH or NaOH) react with triglycerides to form soap (the process is called saponification, the reaction of a strong alkali with fats and oils). Soap is alkaline in nature and is an effective cleansing agent. It is a useful mild antiseptic and can treat heavy metal poisoning.
The INDEPENDENT VARIABLE:
A. Is the participant
B. Is what the scientists manipulate in the experiment
C. The component that is measured. D. The results of the experiment
Answers
Answer:
B. Is what the scientists manipulate in the experiment.
Explanation:
The Independent variable is not dependent, or doesn't rely, on another variable in the experiment. So, it would make the most sense that they would manipulate the Independent so that they can watch and see how the dependent variable reacts to the manipulation, or the change, in the independent variable.
PLEASE ANSWER ASAP. Thank you. QUESTION: Explain the evidence that suggests that the universe is expanding.
Answers
Where are you most likely to find ligaments in the body?
A joints between long bones
B joints between two or more irregular bones
C joints between a long bone and a short bone
D joints between muscles and bones
Answers
Answer:
( A. joints between long bones )
Answer: joints between long bones
Explanation:
How does energy cycle or "flow" during aerobic respiration?
Answers
Answer:
Through the process of cellular respiration, the energy in food is converted into energy that can be used by the body's cells. During cellular respiration, glucose and oxygen are converted into carbon dioxide and water, and the energy is transferred to ATP.
Explanation:
Which of the following is an INVERTEBRATE?
A) Butterfly
B) Wasp
C) Crab
D) Frog
Answers
Answer:
All of the following are invertebrates except for the frog
please give me brainlist!
God bless!
Explanation:
all insects are invertebrates
including the crab
water evaporates from plants by a process known as
Answers
Answer:A través de la fotosintesis
Explanation:
Answer:
Transpiration
Explanation:
I need help Please help me?!
Answers
Answer:
Potential Energy is energy matter has when still.
Kinetic Energy is energy in motion.
a group of organisms of the same species linving in an area is called
Answers
Answer:is called a pack
Explanation:
How do oxbow lakes form? A. It is formed as lakes grow larger due to erosion and begins to look like an ox. B. It is formed when a bend in a river is cut off to form a lake. C. It is formed when a delta grows large enough to cut off a river to form a lake. D. It is formed when a dam stops the flow of a river and creates a lake.
Answers
Answer:
Oxbow lake is formed when a bend in a river is cut off to form a lake.
Explanation:
OPTON A - It is formed as lakes grow larger due to erosion and begins to look like an ox.This statement is incorrect , as the shape of the oxbow lake is not like an ox , it is a horse-shoe shaped lake .
OPTION B - It is formed when a bend in a river is cut off to form a lake.This statement is correct , as An oxbow lake is a U-shaped lake that forms to create a free-standing body of water when a large meander of a river is cut off.
OPTION C - It is formed when a delta grows large enough to cut off a river to form a lake.This statement is also wrong, as a river delta is specified by this statement.
OPTION D - It is formed when a dam stops the flow of a river and creates a lake.This statement is also false, since the creation of a reservoir is established by this statement.
FORMATION OF OXBOW LAKE -:The neck of the meander gets narrower and narrower progressively. The curve gradually grows so close that the river slices through the neck of the meander to take a new, straighter path. Sediment locks the end of the old loop over time. This leaves a region of water that is different, called an oxbow lake.
Hence , the correct option is B.
Answer:
Bbbb
Explanation:
name of locomotory and breathing organs of shark
Answers
Answer:
Respiratory system
Explanation:
Like other fishes, sharks extract oxygen from water as it passes over their gills.
raspatory system? idk
It is difficult to make conclusions about scientific data collected from fossilized remains because the data
Answers
Answer: Fossils are rare because most remains are consumed or destroyed soon after death. Even if bones are buried, they then must remain buried and be replaced with minerals. If an animal is frozen like the baby mammoth mentioned above, again the animal must remain undisturbed for many years before found.
Explanation:
An animal cell with a 30% salt solution is placed in a beaker with a 20% salt
solution. Which is the correct conclusion if the cell remains in the beaker for an
extended period of time?
Answers
Answer:
the animal cell will burst
Explanation:
If the salt solution in the animal cell is 30%, it means the water is at a 70% concentration. Outside is 20%, so the water is 80%.
Water will enter the cell. Water is at a higher concentration outside the cell (80%) or a lower concentration inside the cell (70%) by the process of osmosis.
Eventually, the animal cell will burst, because it does not have any cell wall to control the swelling of the cell that occurs as water flows in.