Answer:
#1 An ecological pyramid is a graphical representation designed to show the biomass or bioproductivity at each trophic level in a given ecosystem. And #2 Most of the food energy that enters a trophic level is "lost" as heat when it is used by organisms to power the normal activities of life. Thus, the higher the trophic level on the pyramid, the lower the amount of available energy.
Explanation:
Sam's Earth Science class is about to walk the planets. What does that mean? Well, his teacher has tied a large helium
balloon outside and students will pace off the distance to each planet, using this scale as a guide. Sam's teacher has
told the class to use the idea of a "pace" as a unit of measure for the activity. A pace is two steps-one with each foot.
One pace is about 1 meter. The students predicted how many paces it would take to reach each planet. It takes 6
paces to reach Mercury and Pluto was 592 paces from the start. When they had completed the activity, one student
had stopped at 287 paces. What planet did that student represent?
◄)))
A)
B)
C)
D)
Jupiter
Neptune
Saturn
Uranus
The planet did that student represent is Neptune
balloon outside and students will pace off the distance to each planet, using this scale as a guide. Sam's teacher has
told the class to use the idea of a "pace" as a unit of measure for the activity. A pace is two steps-one with each foot.
One pace is about 1 meter. The students predicted how many paces it would take to reach each planet. It takes 6
paces to reach Mercury and Pluto was 592 paces from the start.
When they had completed the activity, one student
had stopped at 287 paces. The student represent the planet Neptune.
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What is the process by which populations of organisms change over time?
Answer:Evolution is the process by which populations of organisms change over generations. Genetic variations underlie these changes
Explanation:
In which part of the cell does glycolysis take place?
A.Cell membrane
B.Cytoplasm
C.Nucleus
D.Mitochondrion
Answer:
Cytoplasm.
Explanation:
Glycolysis occurs in the cytoplasm.
What allows carbon to bond with up to four other atoms at a time and form the macromolecules that are essential to life ?
Answer:
A covalent bond is formed when atoms share electrons in their valence shells. Carbon …
Explanation:
A covalent bond is formed when atoms share electrons in their valence shells. Carbon …
Which base sequence is the complementary DNA for GCATAC?
A. CATACG
B.CGTATG
C. GCATAC
D.GTATGC
different organisms can display similar anatomical traits. for example, cats and dogs both have four limbs. why do these different animals have similar anatomical arrangements?
different organisms can display similar anatomical traits because they share common ancestral origin
Since Darwin's time, the study of comparative anatomy has mostly focused on bodily traits that are homologous, or those that, regardless of their current function, may be found in other species and share the same evolutionary ancestry. Such structures may have totally diverse appearances and serve distinct functions, yet they nonetheless share a common structure with an animal that was their ancestor. For instance, the forelimbs of humans, birds, crocodiles, bats, dolphins, and rodents have all undergone various evolutionary modifications to serve various purposes, but they can all be linked back to the fins of crossopterygian fishes, where that fundamental arrangement of bones initially developed. similar structures ,in this way they share common traits
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Which statement best describes the role of phospholipids in the cells of living organisms?
They act as the building blocks for cell membranes.
They communicate information between cells.
They carry the instructions for cell processes.
They act as a source of fuel for cell processes.
Chymotrypsin is a digestive enzyme that breaks down proteins in the small intestine. A student runs a computer simulation of chymotrypsin
enzyme activity at various pH levels and creates the graph.
Enzyme Activity
10
12
8
pH
According to the graph, at what pH is chymotrypsin the most effective?
04
6
8
O 10
Answer:
C.8
Explanation:
A town is considering new sources of electricity. Which of the following sources of electricity would be the MOST environmentally safe choice?
A
hydroelectric dam
B
solar power station
C
coal-fired power plant
D
natural gas power plant
Group of answer choices
A
Answer:
B
Explanation:
Answer:
B
Explanation:
What is the answer for this?!!!
Answer:
Your answer is B).
Explanation:
If the pH is somewhere around 6.0 when the seeds have been placed, then the flowers will be pink, even if later on you try to change to pH levels of the soil, there will be very little change in the color of the flowers.
A scientist plans to find out the cause of decrease in bird population in a location. He interviews 50 people who work in the local oil mine and 45 of them believe that the mine does not affect the birds. The scientist concludes that 90 percent of people in the location believe that the local oil mine does not cause decrease in bird population. Why is the scientist's conclusion most likely unreliable? the source of information could be biased the investigation is done by only one person bird population cannot be measured accurately the results of the investigation cannot be repeated
Answer:
The scientist is unreliable since it was supposed to be collecting data on why the birds are dying not why people think they are dying. Also the data would be very biased because he is asking people if they think they are contributing to the problem.
Answer:
A: The source of information could be biased
Explanation:
The reason why i think it is A, is because He interview 50 and 45 disagree, His or her data is bias because he is going against 5 people out of 100 people or more.
What will most likely happen if a person does not consume the minimum daily requirement of carbohydrates?
Answer:
the body will break down chitin from the bones and glycogen from the liver hope it helps pls mark brainliest
What is true about the ribosomes found in prokaryotes?
A. Prokaryotic ribosomes are often found attached to the endoplasmic reticulum.
B. Prokaryotic ribosomes are smaller than eukaryotic ribosomes.
C. Prokaryotic ribosomes consist of only a large subunit.
D. Prokaryotic ribosomes are larger than eukaryotic ribosomes.
Which correctly lists three water sources that contribute to a river system?
groundwater, ponds, streams
lakes, rivers, ponds
rivers, streams, watersheds
streams, lakes, oceans
Answer:
c
Explanation:
your welcome luv <3
The correct three water sources of a river system are rivers, streams, and watersheds.
What is a river system?A river system is the pattern formed by the streams, rivers, and lakes in a particular drainage basin
Water sources of a river systemThe water sources of a river system include the followings;
Rivers, Streams, WatershedsThus, the correct three sources of a river system are rivers, streams, and watersheds.
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where is most of the mass of the atmosphere contained?
stratosphere
mesosphere
thermosphere
or troposphere
Answer:
troposphere
Explanation:
Answer: Troposphere
Explanation:
The majority of the mass of the entire atmosphere is contained in the troposphere—between approximately 75 and 80 percent.
How does gravity relate to a streams ability to erode and deposit materials
In a certain species of plant, the color purple (P) is dominant to the color white (p). According to the Punnett Square, what is the probability of an offspring being purple?
Answer:
If both are (PP and ww) and one is dominant the other is recessive then it is 100% purple.
IF both are heterozygous (pw) then it is 75% purple and 25% white
if one is Hetro(pw) and the other is (ww) 50% white 50% purple
Explanation:
In the 1950s, the structure of DNA was discovered by using models and x-ray chromatography. Currently, science has used advanced technology to completely map out the genes in a human’s body. What would be the best advantage of using this information?
Answer:
Recently around 2008 i believe a female scientist found the end of our chromosomes and what the enzyme telomerase did.
Explanation:
What was awesome was they telomerase fixes the small fragements of DNA that degrade over time. A study was done on mine one was treated with the enzyme the other was not keep in mind the mice were old. The reated mice actually seemed to reverse age because its fur became shinier and its bones strong it just seemed healtehr and it was. The other of course stayed old. So the discoveries help push our life expectancy farther than we used to think was convinient
Answer:
gene therapy to correct defective genes that cause diseases.
Explanation: i hope this is right.
What type of cells reproduce by mitosis (scientific and basic word)? List three examples.
What type of cells reproduce by meiosis (scientific and basic word)? List examples.
Below, list the steps of mitosis in order then give a brief description of what happens during each step:
Below, list the steps of meiosis in order then give a brief description of what happens during each step:
Will give brainiest answer fasttttttttttt plz and no oneanswer just cause of points
Explanation:
1. Multi celled organisms, body(somatic) cells, single celled organisms.
2. gametes (Sex cells), haploid cells.
3. Interphase - when they are not dividing.
Prophase - nuclear membrane breakdown, chromatin turn to chromosomes and spindle fibers appears.
Metaphase - nuclear membrane completely gone, chromosomes line up along the middle and spindle fibers joins pole to centromere.
Prophase - spindle fibers contract and double stranded chromosomes pulled apart to either poles.
Telophase - nuclear membrane forms, two cells separate, spindle fibers breakdown and chromosomes lengthen and turn to chromatin.
4. I'm not sure about this one.
1. Multi celled organisms, body(somatic) cells, single celled organisms.
2. gametes (Sex cells), haploid cells.
3. Interphase - when they are not dividing.
What are multi celled organisms?A multicellular organism is an organism that consists of more than one cell, in contrast to unicellular organism.
Multicellular organisms are those composed by multiple cells. They are classified in 13 major groups of terrestrial living beings, including animals, plants, fungi, ciliates, algae, and foraminifera. The number of cells per organism range from some tens to up to several million.
Animals, plants, and fungi are multicellular organisms. Multicellular organisms are much bigger in size and are very complex and intricate in their composition along with structure. Human beings, animals, plants, insects are examples of multicellular organisms.
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What can stop climate change and restore the balance of CO2?
Answer:
Power your home with renewable energy. AND . Reducing the use of coal, oil and natural gas is clearly important, but it's not the only way to bring the carbon cycle into better balance
Explanation:
Another option is to speed up the rate at which CO2 is removed from the atmosphere and then sequester the resulting carbon, thereby balancing out the CO2 from fuel combustion.
what is one of the negative consequences of burning wast
Answer:
Toxic fumes
Explanation:
Answer:
It pollutes the groundwater
Explanation:
Which structure in plants allowed the first land plants to survive out of water?
A. cuticle
B. epidermis
C. guard cell
D. spongy mesophyll
Answer:
A
Explanation:
The structure of plants that allowed the first land plants to survive out of water is known as the cuticle. Thus, the correct option for this question is A.
What were the first plants to live on land?The first plants that were tends to live on land are the Non-vascular plants, which include mosses and liverworts, which were the first-ever land plants. They do not have much of an internal support system but have slightly simpler material for the same tasks.
Early in their history, land plants also evolved a cuticle. The cuticle is the structure that involves a waxy layer on the outer surface of the aerial parts of a plant that helps to prevent water loss. Sometimes cuticle with details of epidermal cell structure is preserved in fossil plants.
Guard cells play an important role in the opening and closing of the stomata. While epidermis is the outer cell which prevent the whole plant form injury.
Therefore, the structure of plants that allowed the first land plants to survive out of water is known as the cuticle. Thus, the correct option for this question is A.
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name 1-2 carbohydrates that are not used primarily for energy.
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Which characteristic is shared by both prokaryotes and eukaryotes?
need oxygen gas to breathe
make their own food
contain genetic material
have organ systems
Answer:
Contain gentic material
both have DNA
Explanation:
Prokaroytes dont have organ systems
and the rest are incorrect
22. What will most likely happen if a person does not consume the minimum daily requirements of carbohydrates?
Answer:
What will most likely happen if a person does not consume the minimum daily requirement of carbohydrates? The body will break down chitin from the bones. The body will break down glycogen from the liver. The body will break down glucose from the bloodExplanation:
Amoeba Sisters Video Recap: Prokaryotic vs. Eukaryotic Cells 7. At the end of the video, there's a vocabulary challenge mentioned. Can you use the vocab to create your own sentences to compare and contrast prokaryotic cells with eukaryotic cells? If you need more space, you can attach an additional sheet of paper.
Answer:
True nucleus and organelles.
Explanation:
The main difference between Prokaryotic cells and Eukaryotic Cells are given below.
Prokaryotic cells have no true nucleus while Eukaryotic Cells have true nucleus. true nucleus means that membrane is surrounded the nucleus which clearly show the nucleus. Prokaryotic cells have no organelles while eukaryotic cells have organelles which perform specific function in the cell. these organelles are plasma membrane, ribosome, mitochondria, vacuoles, cytoskeleton, plastids and endoplasmic reticulum.
True nucleus and organelles.
What is the difference between prokaryotes and eukaryotes?
The primary distinction between these two types of organisms is that eukaryotic cells have a membrane-bound nucleus and prokaryotic cells do not. The nucleus is where eukaryotes store their genetic information.
Thus, the True nucleus and organelles are the answer.
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Multiple Choice: Write the letter of the correct answer.
1. uses neurons to send and deliver messages that are fast acting, localized, and short-lived.
a. Endocrine System
b. Nervous System
c.Circulatory System
2. sends slower-moving hormones through the blood that target broad areas and have more lingering effects.
a. Endocrine System
b. Nervous System
c. Circulatory System
3. cook up hormones and secrete them into the blood without using ducts.
a. Endocrine gland
b. Nervous gland
c.Circulatory gland
4. A is a just any structure that makes and secretes a hormone.
a. organ
b. gland
c. cell
5. is the master gland of the body.
a. Endocrine gland
b. Pituitary gland
c. Thyroid gland
Answer:
1 b i
2 c
3 a
4 b
5 I don't know
i think this is the answer
DUE IN ONE HOUR PLEASE HELP
The column on the far left of the periodic table contains the
Answer:
Alkali metals........
How accurate was the prediction about the contents of the story the tell-tale heart?
Poe's "The Tell-Tale Heart" narrator serves as an illustration of an unreliable witness. The narrator's unreliability is based on his attempts to mislead the reader, to go off topic, and to cover up his omission of important details.
A person who thinks they are crazy or insane is said to have a heart with a tall tale to tell/The Tell-Tale Heart. The police were looking into it when he heard his own heartbeat again, which he had mistaken for the elderly man's in the dark in The Tell-Tale Heart. My blood froze whenever the eye touched me, therefore I gradually decided to kill the elderly man in order to permanently banish the eye from my life.
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