Keystone species can control other population sizes, affecting the trophic chains and the ecosystemic structure. Option C. many other species depend either directly or indirectly on the sea otter population.
What are keystone species?Keystone species are organisms that play a significant role in the population's dynamics. If removed, there would be catastrophic effects on the ecosystem.
Keystone species can,
Control the size of other species populationsModify a community structureExert an up-down effect at lower trophic levels. In this way, they provide essential resources.Prevent dominant species from monopolizing ecosystems.Identifying keystone species turn out to be highly used to recover degraded ecosystems.
There are four main types of keystone species. These are,
Predators. Top predators control all other species in the trophic chain, even plant species. Mutualists. These species benefit other species by being associated.Ecosystemic engineers. These species modify the environment and cause changes in the whole ecosystem. Herbivores. They feed on plants and get to control their population sizes, affecting positively or negatively the ecosystems.The option that provides the strongest evidence for Mary's argument is C. many other species depend either directly or indirectly on the sea otter population.
This is the only option that expresses the direct or indirect dependence of other species on the sea otter.
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14. The elements in group_
are the most reactive metals.
15. The elements in group_
are the most reactive nonmetals.
16. The elements in group_
are very unreactive.
17. The elements in group_
react very violently with water.
Answer:
14 Hydrogen is a very reactive gas, and the alkali metals are even more reactive. In fact, they are the most reactive metals and, along with the elements in group 17, are the most reactive of all elements.
15 The halogen group of elements is the most reactive of the nonmetals. It is also the most reactive group of all chemical elements. Fluorine is the most reactive element in this group. Halogens are highly reactive because they are all electronegative.
16 Group 8A — The Noble or Inert Gases. Group 8A (or VIIIA) of the periodic table are the noble gases or inert gases: helium (He), neon (Ne), argon (Ar), krypton (Kr), xenon (Xe), and radon (Rn). The name comes from the fact that these elements are virtually unreactive towards other elements or compounds.
17 Group 1: Alkali Metals
Group 1 elements are called alkali metals because of their ability to displace H2(g) from water and create a basic solution. Alkali metals are also known to react violently and explosively with water.
me
1) Which of the following disease spreads through air from infected person?
Answer:
Common cold, Influenza, Chickenpox, Mumps, Measles, Whooping cough and Tuberculosis.
Explanation:
The common cold, Influenza, Chickenpox, Mumps, Measles, Whooping cough and Tuberculosis are the diseases that can spreads through air from an infected person to the healthy person. These diseases have some viruses and bacteria that is responsible for the spreading of the these diseases. These viruses and bacteria can move from one place to another through the medium of air from infected person to the person who is not infected from this disease.
true or false
cellular respiration releases chemical energy from sugars
i believe it's True cos I've read this once
What characteristics do you think could be used to classify different kinds of single-celled organisms? Write your ideas here
Answer: flagellum, a plasma membrane and organelles.
Explanation: In that sense, it can be difficult to find traits that they all share. Still, Project Oceanography at the University of San Francisco indicates that single-celled organisms have a number of common characteristics, including the presence of flagellum, a plasma membrane and organelles.
Flagellum, a plasma membrane and organelles classify different kinds of single celled organism and prokaryotic organism.
What are the different features of prokaryotic cell ?Prokaryotic cell are single celled organism, do not have membrane bound organelles and its size varies from 0.2 μm – 2.0 μm.
Here the Cell wall is present but True Nucleus is absent, the cell wall is mainly involve in photosynthesis and provide protection to cell, the ribosomes are Smaller in size having 70s type and spherical in shape.
Circular DNA is present as genetic material in prokaryotes, Mitochondria is absent in prokaryotes, the reproduction usually occur by binary fission and some times it occurs through conjugation.
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Not every evosystem has large areas of similar vegetation, as the habitats in you study do. I'm areas where patches of more visually varied habitats exist, individual snails regularly move into or out of different visual surroubdings
Answer:
High diversity of organisms are present.
Explanation:
Due to the existence of varied habitats in the ecosystem, there is high diversity of organisms in that ecosystem because there are different types of habitats are present in that ecosystem. Due to presence of more habitats for organisms and suitable conditions, different types of organisms lives in that one ecosystem which increases the diversity of that ecosystem. If the ecosystem has only one type of habitat, then the ecosystem will be less diversified as compared to ecosystem having varied habitats.
name 2 parts of a lipid molecule
Explanation:
The two main parts of a triglyceride lipid are glycerol and fatty acids.
Which statements about geocentric model and heliocentric model are true? Select the two correct answers.
A. They both are models of the solar system.
B. They both show the position of Earth relative to the Sun.
C. They both show Earth at the center of the solar system.
D. They both show the Sun at the center of the solar system.
Answer:
A and B
Explanation:
the other 2 answers are just obviously wrong
They are both models of the solar system and they both show the position of the Earth relative to the sun. So the correct option is A and B.
What are heliocentric and geocentric models?A cosmological concept known as heliocentrism assumes that the Sun is located at or close to the center of the solar system or the universe, with the Earth and other planets revolving around it. The Greek philosophers Philolaus and Hicetas hypothesized independently that the Earth was a rotating sphere that rotated daily around a mysterious "central fire" that controlled the cosmos in the fifth century BC.
Two hundred years later, Aristarchus of Samos expanded on this concept by stating that the Sun, together with the Earth and other planets, revolved around a certain central object.
Any solar system (or universe) structure hypothesis that places Earth at the center of the cosmos is referred to as a geocentric model. Ptolemy of Alexandria's geocentric model was the most advanced (2nd century CE). It was widely believed until the 16th century when heliocentric theories like Nicolaus Copernicus took their place.
Therefore the correct options are A and B.
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Name the carbohydrate which forms cell wall
Answer:
Cellulose
hope this answer helps you...
The process used to break down a carbohydrate?
Answer: Digestion of carbohydrates is performed by several enzymes. Starch and glycogen are broken down into glucose by amylase and maltase. Sucrose (table sugar) and lactose (milk sugar) are broken down by sucrase and lactase, respectively.
Answer:Digestion of carbohydrates is performed by several enzymes. Starch and glycogen are broken down into glucose by amylase and maltase. Sucrose (table sugar) and lactose (milk sugar) are broken down by sucrase and lactase, respectively.
Explanation:
Why does increased growth of a cell lead to cell division
A. The dna would not be able to meet the needs of the cell
B. The cell is unable to efficiently move waste and nutrients across the cell membrane
C. Both a and B
D. Neither a or B
Answer:
The DNA would not be able to meet the needs of the cell. it's the answer...
What is cross breeding impact on the environment
Answer:
it is gaining populaity
2.Cellular ____________________ is the process in which cells use oxygen to release energy from food (glucose)
oxygen
respiration
life
Respiration is the answer
Answer:
respiration
using oxygen the cells break the conplex substrates to simpler ones thereby releasing energy which is stored in the form of ATP.
why do you think meteors leave a trail of light as they move through the sky?
Answer:
When a meteoroid, comet, or asteroid enters Earth's atmosphere, aerodynamic heating of that object produces a streak of light, both from the glowing object and the trail of glowing particles that it leaves in its wake.
Hope that helps, and sorry if it's wrong!
Explanation:
The north pole of a compass magnet points toward
O A. magnetic north
B. geographic south
C. geographic north
D. magnetic south
SUBMIT
D. Magnetic south
Hope this helps :)
HELP!!! 50PTS!!! AND WILL BE MARKED BRAINLIEST!!!
Which of the following best describes evidence from comparative biochemistry that supports the theory of evolution? (4 points)
Different mechanisms of reproduction exist within the same species.
Different metabolic pathways exist within the same species.
Different species have the same genetic code.
Different species have the same number of chromosomes.
Answer:
1. Asexual reproduction includes fission, budding, fragmentation, and parthenogenesis, while sexual reproduction is achieved through the combination of reproductive cells from two individuals.
2. Anabolism & Catabolism
3. Nearly everybody has the same genetic code. Although the sequences of bases in their DNA (and thus in the messenger RNA that is made from their DNA) vary between species and even between individuals within a species, almost all of them use the same code.
4.Yes, two or more species can have the same number of chromosomes. ... There's much more to differentiating between species than number of chromosomes. For one example, there are proteins present on eggs which 'match up' with proteins on sperm, and these are very specific.
Hope this helps!!
Based on her diagram, what is the role of the sunfish in this food web?
A. To break down waste products made by insect larvae
B. To provide energy for the bass and snapper turtles
C. To take in light from the sun and produce food
D. To consume the algae and other pond plants
Answer:
B. To provide energy for the bass and snapper turtles
Which material moves into a plant through an open stoma?
A. Oxygen
B. Carbon dioxide
C. Carbohydrates
D. Water vapor
Answer:
cardon dioxide
Explanation:
opens up to breath carbon dioxide. releases oxygen for humans to breath. it absorbs water from the roots.
Answer:
B my guy
Explanation:
Stoma control the flow of gases in and out of leaves. During the day, when air temperatures rise and carbon dioxide levels are normal or above normal, the stomata open, allowing carbon dioxide to enter and photosynthesis to take place.
I think ik the answer but i'm not sure it that's the answer.
Answer: A or D
Explanation:
why do scientists use binomial nomenclature to name organism
Answer:
Binomial nomenclature is used to avoid confusion among the names the organisms. ... If we call all these organisms by different names, no organism can ever be identified globally. Hence the system of binomial nomenclature was introduced where each organism is named using its genus and species name (in Latin).
Explanation:
please give me brainlist and follow
Can you please help me
Answer:
16, 24
Explanation:
As you can see, every next ordered pair in the "add 4" box adds 4 for every ordered pair and in the "add 6" box it adds 6 for every ordered pair, so all you have to do is 12 + 4 = 16 and 18 + 6 = 24
please describe the climate of spruce pond in southeast new york
Answer:
It then describes the basic physical elements of the system as it exists today, together with the biophysical geography of the Catskill/Delaware headwaters from which 90 percent of the City's water is derived. This chapter
Meiosis occurs in male-female reproduction.
True or false?
Answer:true
Explanation:
Both males and females use meiosis to produce their gametes, although there are some key differences between the sexes at certain stages. In females, the process of meiosis is called oogenesis, since it produces oocytes and ultimately yields mature ova(eggs).
How can I teach my kitty to behave properly
Answer:
Give it some chicken nuggies, or have a good conversation with him/her about their responsibilities and how they should act.
Explanation:
Cats are carnivores so theyll probably like chicken nuggies
Explain how concentration gradients across membranes are maintained
Answer:
The idea of concentrations and gradients within them is important when understanding the movement of substances across cell membranes. The more particles there are in a certain volume, the more concentrated those particles are. A solution with a low solute concentration has a high water concentration, and a high water potential.
What is the correct mRNA transcription of the following DNA sequence? ATGGCACCTTAC
Answer:
It is: UACCGUGGAAUG
White blood cells and other lymphocytes are created in bone marrow. In
this scenario, which system is interacting with the immune system?
Skeletal system
Nervous system
Integumentary system
O Digestive system
Answer: Skeletal system Explanation:
Which of the following is not true about groundwater
A)
Its a long-term reservoir
B)
Significant during drought
C)
It is the only source of freshwater
D)
It is replenished by surface water
The statement that is not true about groundwater is that it is the only source of freshwater, which is option C. Details about groundwater can be found below.
What is groundwater?Groundwater is the water that exists beneath the earth's surface in underground streams and aquifers.
Groundwater can prove very useful in the following ways:
Its a long-term reservoirSignificant during droughtIt is replenished by surface waterHowever, the statement that it is the only source of freshwater is not true.
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What are the products of photosynthesis *
A. Just carbon dioxide
B. Oxygen and glucose(sugar)
C. Carbon dioxide and water
D. Oxygen and carbon dioxide
Answer: B
Explanation:
Photosynthesis uses CO2 and water to make oxygen and glucose.
6CO2 + 6H2O → C6H12O6 + 6O2 This is the chemical reaction that occurs. Products are on the right and we can see glucose and oxygen are formed.
I just found out that my new dog has heartworms. She has to go through painfull treatment for a couple of months. What should I do?
Also what is 2×2?
Answer:
You should be calm. Also the answer is 4
Explanation:
The answer is 4 because anything multiplied by 2 is the number doubled.
Answer:
2×2 =4
Explanation:
If you have two things then you multiply it two times what you get is your answer
HELP PLEASE! no websites please
Answer:
true
Explanation:
Answer:
its true
Explanation: