how can pioneer species benefit the whole biological community?
Explanation:
"Over hundreds of years these “pioneer species” convert the rock into soil that can support simple plants such as grasses. These grasses further modify the soil, which is then colonized by other types of plants. Each successive stage modifies the habitat by altering the amount of shade and the composition of the soil."
Which of the following are sources of extra nutrients that can cause algae to overgrow in water due to HUMAN activity? CAREFULLY select all options that apply. List the answers.
dissolved oxygen in water
treated waste water
viruses
combined sewage overflow (CSO)
fertilizers
cleaning products
dog poop on the streets of NYC
water running over rocks
(This is 7th grade science)
when an experiment shows that two variable are closely related the experiment shows what
Answer:When an experiment shows that two variables are closely related, the experiment shows correlation between the two variables. Correlation helps to show how two variables are related and connected. Related variables are said to be correlated. For example, we can say, good health is correlated to daily exercise routine.
Explanation:
A chemical reaction that has the general formula of nA → (A)n is best classified as a
reaction.
Answer:
true
Explanation:
Answer:
Polymerization
Explanation:
What are two tools that can be used to measure wind direction?
Answer:
it should be a wind vane and an anemometer.
Explanation:
The anemometer measures wind speed and the wind vane helps determine what direction the wind is coming from.
Select the correct bisector of the segment.
B
A
B
B
B
А
M
B
B
D
Answer:
C
Explanation:
it has the example figure number 7 and also it has the correct bisector
What type of energy has to do with a change in temperature?
Answer: changes in heat energy change temperature
Explanation: heat energy can be thought of as energy in individual atoms or molecules, which vibrate more as energy increases. Temperature is a measure of heat energy. For example, many substances expand as heat energy causes it atoms/molecules to vibrate more and occupy more space. We can use this property to measure energy as temperature by using the expansion of a liquid as in thermonmeters.
Explain how autotrophs need both cellular respiration and photosynthesis
Answer:
They get energy from food. Autotrophs make their own food through the process of photosynthesis, in which light energy from the sun is changed to chemical energy that is stored in glucose. And as for cellular respiration, all organisms use it to break down glucose, release its energy, and make ATP.
Explanation:
_____________
9.Supposed 100 ants live in an & square cenoneter cs: pot gasswould be the population density of the ants?
A.12.5 per cm²
B.12.6 per cm²
C.12.7 per cm²
D.12.8 per cm²
7.) DURING THE FIRST ERA, THE __________ ORGANISMS EVER ON EARTH WERE
ERA, THE FIRST LIVING
Answer:
The first living organism on Earth are Bacteria in the first era.
Explanation:
Bacteria are the first organism to leave be on Earth. They came into existence about 3.5 billion years in the first era in the waters of small oceans. Then there were anaerobic hetetrophic bacteria because the atmosphere was free of oxygen before. Cyanobacteria then became the first autotrophic organisms and first photosynthesizer that release oxygen to the atmosphere after photosynthesis.
Which model below shows a prokaryotic cells?
Answer:
Modle two as it is singular, simple with a flagellum
Explanation:
A moth population living in a deciduous forest relies on camouflage to protect itself from predators. These moths typically vary in
color and are thus able to camouflage among both the light and dark-colored trees of the forest. However, as soot emitted from
nearby factories darkens the forests trees, the moth population begins to evolve. Which of the following distribution graphs best
represents the evolution of this moth population?
The distribution of graph A best represents the evolution of this moth population.
What do you mean by Evolution?Evolution is defined as the process of growth and development or the theory that organisms have grown and developed from past organisms.
As soot emitted from nearby factories darken the trees of the forest, it is better to camouflage dark to escape from predators. And in this way evolution of the moth population takes place.
Therefore, the distribution of graph A best represents the evolution of this moth population.
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Which of the following processes provides the link between solar energy and multi-cellular life on earth?
Answer:
Out of "the", "following", and "processes" The answer is simply solar energy to life "Processes"
Explanation:
If a sample originally had 120 Adams of carbon 14 how many atoms will remain after 17,190 years
Answer:
15 atoms
Explanation:
About 15 atoms out of the 120 Adams would remain.
Generally, the half-life of a substance is the time it takes for one-half of that substance to disintegrate.
Carbon 14 has a half-life of approximately 5,730 years. 17,190 years means that the sample had stayed for 17,190/5,730 which is equal to 3 carbon-14 half-lives.
Out of 120 Adams,
the first half-life will reduce 120 to 60 Adamsthe second half-life will reduce 60 Adams to 30 Adamsthe third half-life will reduce 30 Adams to 15 Adams.Hence, at the end of the 17,190 years, approximately 15 Adams would remain.
1. How is natural selection related to the process of evolution?
Answer:
Natural selection is related to the process of evolution because It is one of the processes that drives change and helps to clarify the diversity of life on Earth.
Explanation:
Hope that helps
January comes once in 12 months. Saturday comes once in seven days and 12 noon comes once each day. How is this like the frequency of a wave?
In the experiment, which of the following variables should remain consistent?
the types of plants used
the temperature of the water and vinegar
the type of soil used
All of these choices are correct.
All of the above is correct
When a human cell divides in mitosis, the two daughter cells will each have: _____
Answer: In mitosis a cell divides to form two identical daughter cells. It is important that the daughter cells have a copy of every chromosome, so the process involves copying the chromosomes first and then carefully separating the copies to give each new cell a full set. Before mitosis, the chromosomes are copied.
Please help worth 95 points. Project: Algae Cultures: Directions
In this report, you will be researching the different types of algae. Report on one algae from each of the three categories (blue-green, green, and green-brown). Include the following information: Name of the algae, Category if falls under, Where it is mostly found and what conditions it needs to survive, Whether it is unicellular or multicellular, Where in the food chain algae are, and what predators it may have, Research why some scientists think algae should be classified plants, and explain the debate.
1.Which organisms did you identify 2. How easy or difficult was it to find an example of each category? Which one was the hardest to find? Why? 3. Which environments were most common to find algae in? Why do you think so? 4. What part of the food chain is the alga? 5. Why is algae classified in the Protist Kingdom and not the Plant Kingdom even though they are photosynthetic? Research why scientists feel they should be classified as plants.
Answer:
1) I identified the Golden-Brown Algae.
2) It was very easy to find the category because of the solid color base and because it only had the daitoms. It did not have multiple like the Green Algae and the Blue-Green Algae.
3) In fresh, brackish or salt water. They are found both in tropical lakes and seas, and in the alpine and polar snows. They are unicellular or multicellular protist plant organisms, whose cells do not form tissues and lack flowers. They are considered the first link in the food chain in the aquatic environment. They are found in fresh, brackish or salt water. They are primary producers in the food chain, capable of producing organic substances through photosynthesis, so they use sunlight. They are found in tropical lakes and seas up to the alpine and polar snows.
4) Producer Alga is A plant and produces food for other organisms.
5) Algae (Euglena) do photosynthesis as plants do. They also move around and eat, as do animals. But they are unicellular. In order to be classified as a plant or animal, an organism has to be multicellular, made of more than one cell. Since it is a unicellular organism with some plant and animal characteristics, it is called a protist. Plant cells have walls while algae does't have one, so it is a protozoan. Algae resemble the protozoa, so they are put into the Protist Kingdom.
Explanation:
I had the project.
Algae recreate a major part of the marine ecosystem because they exist as the decomposers current in the marine ecosystem; any harm to them could cause an inequality in the whole marine ecosystem.
What are golden-brown algae?1)The Chrysophyceae, usually named chrysophytes, cryptomonads, golden-brown algae or golden algae exist as an extensive set of algae, seen mainly in freshwater.
2) It stood very easy to see the class because of the solid color base and because it only contained the diatoms. It did not contain multiple like the Green Algae and the Blue-Green Algae.
3) In fresh, saline, or salt water. They exist seen both in tropical lakes and seas and in the alpine and polar snows. They exist as unicellular or multicellular protist plant organisms, whose cells do not constitute tissues and absent flowers. They exist thought the first link in the food chain in the aquatic environment. They exist seen in fresh, brackish, or salt water. They exist as primary producers in the food chain, qualified of producing organic substances through photosynthesis, so they utilize sunlight.
4) Producer Alga exists in a plant and makes food for different organisms.
5) Algae (Euglena) accomplish photosynthesis as plants do. They even move about and eat, as do animals. But they exist unicellular. To be categorized as a plant or animal, an organism contains to be multicellular, made of better than one cell. Since it stands as a unicellular organism with some plant and animal elements, it exists named a protist. Plant cells contain walls while algae don't contain one, so it exists as a protozoan. Algae reach the protozoa, so they stand to put into the Protist Kingdom.
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problems one and two
Answer: 1.) 6.84m
2.) 6,510 m/s
Explanation:
An animal doctor is called ?
What types of cells have cell walls ?
The type of cell that possess cell wall is plant cell. The correct option is A.
What is cell wall?A cell wall is a structural layer located just exterior the cell membrane that surrounds certain types of cells.
It can be tough, flexible, along with being rigid at times. It basically aids structural support as well as protection to the cell, as well as acting as a filtering mechanism.
The cell wall is made up of a network of cellulose microfibrils and cross-linking glycans embedded in a matrix of pectin polysaccharides that is highly cross-linked. Lignin can be found in secondary cell walls.
Plant cell walls, as the interface between adjacent cells, frequently play important roles in intercellular communication.
Plant cell walls play an important role in plant-microbe interactions, including defense responses against potential pathogens, due to their surface location.
Thus, the correct option is A.
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Your question seems incomplete, the missing options are:
Plant cell.Muscle cells.Blood cells.Animal cells.The formation of an ionic bond involves the
Select one:
O sharing of neutrons.
sharing of protons.
transfer of neutrons
transfer of electrons
Answer: transfer of electrons
Explanation:
How do humans generate energy when oxygen is not available?
a. Using Kreb’s Cycle only
b. Using the Electron Transport Chain only
c. Using alcoholic fermentation
d. Using lactic acid fermentation
The following RNA strand was produced:
5′ AAA AUG AGU AAG 3′
Which of the following DNA strands could have been the template for this RNA?
Choose 1 answer:
(Choice A)
3′ AAA ATG AGT AAG 5′
(Choice B)
3′ UUU TAC UCA UUC 5′
(Choice C)
3′ TTT TAC TCA TTC 5′
(Choice D)
3′ TTT ATG TGC TTC 5′
Answer:
Choice 3
Explanation:
Because T corresponds with A and the letter could have been an option but the letter U cannot be in a DNA strand
Which of the following is a method used to obtain the relative age of a rock or fossil?
a
Decay rates
b
Radiometric dating
c
Superposition
d
Uniformitarianism
i know its not radiometric dating
Answer:
Radiometric dating
Explanation:
In the African savanna, more wildebeests are born than the environment can support. Which is most likely to happen over a period of years as a result?
The chances for survival of the population are reduced.
New food sources are discovered and become the regular diet.
Individuals that are well suited to the environment reproduce, and those that are not well suited die before they reproduce.
The environment adapts by providing more resources to the growing population, increasing the chances of survival for individuals within the habitat.
Answer: I think the correct answer from the choices listed above is option C. Over a period of years, most likely, individuals that are well suited to the environment reproduce, and those that have lesser adaptations die before they reproduce. Hope this answers the question.
Explanation:
Read the quotation below from a high school science student.
We used a formal method of study to figure out which kind
of grocery bag had the least effect on the environment.
What is the student describing?
O A. Using scientific tools
B. Making random discoveries
C. Using the scientific method
D. Making a conclusion
Answer:
C. Using the scientific method
When a strong acid is added to a strong base a_________________ reaction occurs in the product will have a PH closer to_____
A. Neutralization,7
B. Ionic,0
C. Concentration,14
Answer:
A
Explanation:
Acids and bases when mixed neutralize eachother. and 7 is neutral on the PH scale
Which is an advantage of genetic engineering?
A lack of labeling of food products that have been genetically engineered
B diminished opportunities for organic agriculture
C lack of long-term studies on food safety and environmental impact
D diminished effects of diseases on crops
Answer:
The answer is D.) Diminished effects of diseases on crops.
Explanation: I just took the quiz on edge 2021 :)
An advantage of genetic engineering is the diminished effects of diseases on crops. The correct option is D.
What is genetic engineering?Genetic engineering, often known as genetic modification or genetic manipulation, is the use of biotechnology to directly manipulate an organism's DNA.
The manipulation or modification of an organism's DNA or cells is known as genetic engineering. Cloning is an excellent illustration of genetic engineering in action.
The main worries concerning the negative consequences of GM foods on health include the transmission of antibiotic resistance, toxicity, and allergenic. From the standpoint of allergies, there are two difficulties.
Therefore, the correct option is D, diminished effects of diseases on crops.
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