energy enters an ecosystem through photosynthesis. By feeding on plants and on one another, animals play an important role in the movement of the matter/energy though. they also influence the quantity of plant and biomass present. so the anwser is D, secondary consumers to tertiary consumers
Answer:
''d' is correct.
Explanation:
Producers-->Primary Consumers-->Secondary Consumers-->Tertiary Consumers
Which organisms utilize cellular respiration for energy production?
A. Prokaryotic Cells
B. Eukaryotic Cells
C. Both Prokaryotic and Eukaryotic Cells
D. Only Animal Cells
living things making new living things like themselves like these bacteria
O homeostasis
O cell
O growth
O reproduction
Answer:
Reproduction
Explanation:
The answer would be reproduction because it is creating a new living thing.
A famous celebrity has an extreme security system for their estate. The security system includes sensors in the ground as well as on the sides of the buildings. A loud truck drives down the road entering the estate. There is a sensor in the ground and another on the side of the security guard’s shed. If both sensors are 100m from the truck, which sensor will pick up the noise of the truck first and why?
A.
Guard Shed - The sensor on the security guard’s shed will detect the sound first because the sound is traveling through the air and sound will travel fastest through a gas.
B.
Ground - The sensor in the ground will detect the sound first because the sound is traveling through the dirt and sound will travel fastest through a solid.
C.
Same time - Because the sound is traveling through both the ground and the air at the same time, it will reach both the shed and the ground sensor at the same time.
D.
Neither sensor - 100m is too far for the sound to travel. Neither sensor will pick up the sound of the truck until it is closer to them.
Answer:
B. Ground - The sensor in the ground will detect the sound first because the sound is traveling through the dirt and sound will travel fastest through a solid.
Explanation:
Sound wave is an example of mechanical wave, which means sound waves require a medium to travel through. However, how fast a sound travels is dependent on the kind of medium it travels through. Sound travels fastest via a SOLID medium, then liquid and slowest through gases.
According to this question, sensor in the ground and side of the security guard’s shed were placed in an estate owned by a famous celebrity. A loud truck, then, drives down the road entering the estate.
Based on the principles of sound eaves movement, the sound from the truck will be picked by the sensors in the GROUND first because the sound is traveling through the dirt and sound will travel fastest through a solid.
15. Briefly explain how the gel (or DNA fingerprint) is made after DNA has been amplified.
Answer:
Like the fingerprints that came into use by detectives and police labs during the 1930s, each person has a unique DNA fingerprint. Unlike a conventional fingerprint that occurs only on the fingertips and can be altered by surgery, a DNA fingerprint is the same for every cell, tissue, and organ of a person. It cannot be altered by any known treatment. Consequently, DNA fingerprinting is rapidly becoming the primary method for identifying and distinguishing among individual human beings. DNA fingerprints are also useful in several applications of human health care research and for diagnosis of inherited disorders. DNA fingerprinting is often used in the justice system to link suspects to biological evidence and solve paternity cases.
Explanation:
DNA sample: A DNA sample that will be examined must first be gathered. DNA extraction: Using the lysis process, DNA is then extracted from the sample.
What is DNA fingerprint?Restrictions endonucleases:The DNA fragment is cut at a particular place by a specific restriction enzyme.
Alec Jeffrey, a British biologist, created the DNA fingerprinting technique in 1984 after noticing that some highly variable DNA sequences, or minisatellites, that are repeated inside genes but do not affect their activities.
In DNA fingerprinting, a gel-like fluid is used to distinguish between DNA molecules that move at various speeds. A DNA molecule that is huge moves slowly, whereas a DNA molecule that is little moves quickly.
Therefore, DNA molecules are divided in gel electrophoresis according to size. When DNA molecules are divided into distinct sizes, bands of DNA are created.
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Earth began as a mixture of about 90% stony, olivine-rich material and about 10% iron metal, just like the composition of chondritic meteorites. Soon after its formation the interior of the Earth is thought to have become very hot. What was the result of this increase in heat? A) The iron melted and collected in the interior of Earth to become its core. B) The olivine remained behind, becoming the mantle and the melted iron became the core. C) Both the olivine and iron melted and as they later solidified, became the mantle and the core. D) The olivine became the crust and the iron, melting, defended into the earth to become the core.
Answer: D. The olivine became the crust and the Iron melting defended the earth to become the core.
Explanation:
Earth was formed after it has went through a molten stage that led to the heavy materials sure as Iron metal moving inward to form the core, and the light materials moves toward the surface to form the crust.
The heat for the melting came from meteorite impacts which is usually very hot, the moon's impact, and the decay of radioactive elements.
Geological activity on the earth is driven from this initial source of heat at the earth's formation until now.
The *blank* converts food into energy. It is found in both plant cells and animal cells.
what is the *blank*?
Answer:
Glucose?
Explanation:
DNA will condense into
Answer: DNA condenses into chromosomes.
Explanation: Chromatin carefully packs these DNA molecules into stringy-looking structures called chromosomes. If the DNA molecules in cells were not snaked around histones, the molecules would be 6 feet long when placed end-to-end, according to the National Human Genome Research Institute.
Answer, dna will condense to
Is gneiss a fracture or cleavage?
Answer:
Cleavage
Explanation:
what fossil layer will corals be present in
Answer:
polyp
Coral polyps secrete a rock-like skeleton of calcium carbonate around them. Calcium carbonate is also the dominant consituent of the rock, limestone. Because modern corals live in large colonies, these skeletons can become quite large, sometimes forming reefs.the soft tissue decays which leaves a hard skeleton behind the skeleton also that was preserved as a fossil of ancient coral and the coral that exists today all belong to the order of Scleractinia (SCLER-ac-TIN-ee-a). in the past the fossils found today lead to the conclusion that their where other kinds of coral which are now extinct The order Rugosa was dominated by solitary corals in which each coral polyp had its own skeleton. Rugose means wrinkled or rough, and the outer surfaces of most rugose coral skeletons has a wrinkled appearance. Because some of the solitary rugose corals formed horn-shaped skeletons, they are called horn corals. Some Rugose corals also formed colonies and coral heads. The order Tabulata consisted entirely of groups of coral animals that lived in large colonies with a shared skeleton. These colonial corals grew in mounds, branching shapes, as chain-like shapes, and even in shapes resembling pipe organs.
Explanation:
name three functions of lipids in organisms
cell membrane and signalling
Which biome receives 200 to 400 cm of rain per year?
Deciduous forest
Temperate rain forest
Taiga
Grassland
Answer:
Temperate rainforest
Explanation:
I took the test.
Answer:
B-temperate rain forest
Explanation:
cause i am smart
Write a summary of the digestive system. Include the organs of the system and tell if physical or chemical change or both take place in each organ.
Investigator Benton uses several methods to analyze hair samples found at the crime scene. He examines the physical features of the hairs, their color and shape, as well as the medulla of the hairs. Using the hair root, he tests for nuclear DNA and also for mitochondrial DNA. Which of these tests would most likely indicate the owner's identity?
Morphology
Medulla
Nuclear DNA
Mitochondrial DNA
Answer: Nuclear DNA
Explanation:
Got it right.
6. Name eight characteristics that all living things share.
Answer:
homeostasis reproduction sensitive cells grow adapt interact respiration consume energy
Answer:
respiration,digestion,exretion,circulation,reproduction,locomotion and movement,chemical coordination
Explanation:
All these characteristics are found in living things
What does the process of cell respiration provide for cells?
Answer:
Cells do cellular respiration to extract energy from the bonds of glucose and other food molecules. Cells can store the extracted energy in the form of ATP.
Which is not a compound?
8H 2
5HCI
6Cao
он 20
Answer:
8H 2 because a compound consists of two or more elements
Answer:
8H 2
Explanation:
cuz if it was a compound a new substance formed by a combination of two or more different atoms
in what ways does pollination in gymnosperms differ from pollination in angiosperms?
Answer:
In gymnosperms, pollination involves pollen transfer from the male cone to the female cone.
What is homeostasis (full explanation no copy right plz)
Answer:
Homeostasis is the ability to keep a stable internal state, despite changes in the environment. All living organisms must regulate their internal environment to process energy and survive. Hope it helps
Blood isn't the only natural system that uses acid/base buffers. Limestone is made of calcium carbonate. How would you expect the pH of a lake with limestone bedrock to compare to other lakes after several years of acid rain?
Compare the Viking 1 and 2 probes to the Pathfinder probe that landed on Mars in 1997. How was their technology different?
Answer:
Explanation:
In 1976, The Viking 1 and Viking 2 probes landed on Mars. For six years they transmitted fascinating panoramic views of the red and rocky soil of Mars back to Earth. Twenty years passed before a third probe landed on Mars. In 1997, the Pathfinder probe landed a miniature vehicle named Sojourner on the planet. The probes operated for three months and sent back large amounts of data on the Martian environment. At the same time, the Mars global surveyor probe was placed in orbit to take an overall portrait of the planet. It supplied hundreds of thousands of bits of information, especially on climatic variations.
Answer:
Viking 1 and Viking 2 probes transmitted panoramic views of the red and rocky soils back to Earth after six years later. The Pathfinder probe sent back large amounts of data of the environment especially about climatic variations in only three months. You can tell the technology was very different between these two because of how long it took for each probe to gather data.
How is the health of a person important to a country? Select all that apply.
Countries with fewer healthy people have higher rates of disease.
Countries with more healthy people have higher rates of disease.
Countries with more healthy people have lower rates of disease.
Countries with fewer healthy people have lower rates of disease.
Answer:
A and C
Explanation:
1. Name one consumer in the food web. 2. Name one producer in the food web. 3. What provides energy for the producers in the food web: 4. Name one herbivore in the food web: 5. Name one carnivore in the food web: 6. Name one omnivore in the food web: 7. Name one top perdator in the food web. 8. Name one top predator in the food web: 9. Name one example of the owl's prey:
1. Lion
2. trees
3. Plants, basically things that can make its own food
4. giraffe
5. hyena
6. humans
7. Tiger
8. Basically same as 7
9.mice
Explain the purpose of cellular respiration .where does it take place ?
Answer:
Cellular respiration, it is an aerobic process in which glucose is combined with oxygen and Adenosine di-phosphate (ADP) to produce carbon dioxide, water, and Adenosine tri-phosphate (ATP).
Cellular respiration takes place in double membraned organelle called mitochondrion.
Venus flytraps have leaves that have been modified to capture insects. Cacti have leaves modified into spines. How are these modified leaves classified?
A. Homologous structures
B. Analogous structures
C. Vestigial structures
D. Embryo development
Answer:
Answer is A, Homologous Structures
Explanation:
The insect-catching leaves of Venus flytrap and the and spiny leaves in cactus plants are classified as Homologous structures. Option A is correct.
Homologous structures:
These are the structures in the different organisms that show similarities in the basic organization of the structure.
These organisms are from common ancestors, Homologous structures serve completely different functions.For example- The insect-catching leaves of Venus flytrap and the and spiny leaves in cactus plants.Analogous structures are those structures that serve the same function but are from different ancestors.
Therefore, The insect-catching leaves of Venus flytrap and the and spiny leaves in cactus plants are classified as Homologous structures.
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Why is volume measured in both cubic meters or cubic centimeters and liters
Answer:
The base units of length and volume are linked in the metric system. By definition, a liter is equal to the volume of a cube exactly 10 cm tall, 10 cm long, and 10 cm wide. Because the volume of this cube is 1000 cubic centimeters and a liter contains 1000 milliliters, 1 milliliter is equivalent to 1 cubic centimeter.
Each cell has a structure that separates the inside of the cell from.the environment. What cell is this?
Answer:
Either the cell wall or the cell membrane.
Explanation:
All cells have cell membranes which line the outside of the cell, and some cells have cell walls, which also line the outside of the cell. Since all cells have cell membranes I am inclined to believe that the correct answer would be cell membranes.
Composites are made from
a. layers of wood glued together in sheets
b. two or more plastics mixed together to make a new plastic
c. two or more materials mixed together that chemically mix into a new material
d. two or more materials mixed together to make a stronger material but the individual components remain visible
GREETINGS!
D is the answer
Explanation:
A composite is made by combining two or more other materials so they improve one another but keep distinct and separate identities in the final product. So a composite isn't a compound (where atoms or molecules bind together chemically to make something quite different), a mixture (where one material is blended into another), or a solution.
HOPE THIS HELPS!
why do food chains in an ecosystem rarely contain more then five organisms
Why do food chains in an ecosystem rarely contain more than five organisms? ... Nutrients are lost from the ecosystem when organisms die. The conversion of food into growth by an organism is not very efficient. Energy is recycled by the decomposers back to the producers.
What is greatly affected by atmospheric pressure?
What does photosynthesis need to begin?
Answer:
photosynthesis begins with sunlight, carbon dioxide, and water
Explanation:
hope this helps