How do invasive species change the diversity index?
Answer:
The diversity index is defined as the measure of diversity that describes the number of species that is present and also the relative abundance of individual species.
The invasive species are those species that are dominant in character and their presence can cause a negative impact on the ecosystem. They have the ability to create dis-balance in an ecosystem. For example, Asian Carp, European Starling, and Water hyacinth.
An increase in the number of invasive species leads to a decrease in the diversity index. This species can alter the food web within an ecosystem by eliminating the local food sources leaving no food for the faunas.
Thus, these species must be kept under control in order to maintain a favorable condition for the other species to exist in an ecosystem.
Desperate I need help.
Which physical evidence supports the theory that all continents were once together and have separated over time?
Common marine animal fossils found in various continents
Matching coastlines of Africa and South America
That most earthquakes occur along a plate boundary
Oceanic ridge near a divergent plate boundary
which of the following is a function of a vacuole?
A packaging of materials
B transport of materials
C storage of materials
D breakdown of materials
Which scientists are credited for the events described in the development of the cell theory?
Answer:
The scientists who postulated the cell theory were:
-Robert Hook: he was the first scientist to use the word cell, he observed cork and he calls cells the the divisions he saw.
- Leeuwenhoek: he built biconvex lenses and with them he observed microorganisms such as bacteria and protozoa and cells such as sperm and red blood cells.
- Schleiden: he studied embryonic cells and discovered the nucleolus
lipid is one of the major classes of biomolecules needed by the body. The body breaks down the lipids that we consume to create blank and blank
Answer:
The correct answer will be- fatty acid chains and glycerol molecule.
Explanation:
Lipids are the biomolecules also known as triglycerides. The lipids get hydrolyzed to provide energy to the body through the process of lipolysis which takes place in the cytoplasm.
The triglycerides on breakdown form the two components, fatty acids and glycerol in which fatty acid undergo β-oxidation and gets converted to acetyl CoA whereas the glycerol directly enters in the glycolysis pathway as DHAP. The lipolysis provides high energy to the body.
Thus, fatty acid chains and glycerol molecule is the correct answer.
all of the following would be useful in trying to obtain procedural information to replicate an experiment previously published except for
A. a published scientific journal.
B. a peer-reviewed article.
C. a dictionary.
D. a lab journal used in the original experiment.
The answer would be dictionary
I am home school I go to ARVA
Scientists have changed the DNA of a type of cabbage so that it contains a tiny amount of poison from a scorpion’s tail. The poison in the cabbage kills caterpillars that try to eat it. This is an example of
A) gene therapy.
B) selective breeding.
C) genetic engineering.
D) artificial selection.
Answer:
c
Explanation:
How is mitochondria form?
Identify two commonly exploited fungal species and state how they are used.
Use the Density Equation to solve the problems. Equation: Density = mass or D = m Volume V A block of wood has a density of 0.6 g/cm3 and a volume of 1.2 cm3. What is the mass of the block of wood? Question 2 options: 8.2 g 1.5 g 2.2 g 0.72 g
which statement accurately describes natural selection
Answer:
Evolution works independently of natural selection
Organisms best suited for environment survive and reproduce statement accurately describes natural selection
Explanation:
Natural Selection: Organism adapts itself to the particular environment to survive and reproduce.
The theory of Natural selection was popularized by Charles Darwin. He explained that organisms evolved, they can survive when they get adapted better to the environment.
Natural selection is also called the'' survival of the fittest''. The organism which gets adapted to the environment will survive.
The more desirable characteristic will pass from parents to offspring.
bacillus anthracis the bacterium that causes the deadly disease anthrax produces thick endospores what is the significant role of spore formation in the reproductive cycle of this bacterium
Is osteoporosis a spell in Harry Potter?
No its a medical condition
Why would it be hard to find the ideal CO2 level if there was barely any light?
Which of the following reasons best explains why a scientist would want to use Charles Darwin's ideas on natural selection to study which traits are most beneficial to genetically altered mice?
what is the biological importance of the polarity of water?
Which type of rock does B represent?
A)Igneous rock
B)Metamorphic rock
C)Rock formed by compaction
D)Rock formed by heat and pressure
A force that tends to pull together the matter in stars is
a. gravity
b. nuclear fusion
c. expansion
d. nuclear fission
A force that tends to pull together the matter in stars is : ( A ) Gravity
What is Gravity ?Gravity is a force which pulls object together / towards each other. gravity is an invisible force therefore it can not be seen or felt. for matters of an object to remain in place the force of gravity pull the matters of the object/compound together as seen in the matter in stars.
Hence we can conclude that A force that tends to pull together the matter in stars is : ( A ) Gravity
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how do temperature and pH affect the activity of the enzyme
Enzyme activity is highly dependent on temperature and pH. Optimal temperature for human enzymes is usually around 37 degrees Celsius, and deviations can lead to decreased activity or denaturation. Similarly, each enzyme has an optimal pH range, with performance dropping off outside this range due to structure-altering changes in H+ concentration.
The activity of enzymes is greatly influenced by changes in temperature and pH. At their optimal temperature, usually around 37°C for human enzymes, they perform at their peak. Deviation from this temperature can lead to a decrease in activity. High temperatures may cause denaturation, changing the enzyme's structure and preventing substrate binding. Conversely, low temperatures reduce kinetic energy, slowing down reactions.
pH also plays a crucial role in enzyme function. Each enzyme has an optimal pH range where it performs best. For example, enzymes in the stomach, like pepsin, work effectively at a low pH due to the acidic environment. On the flip side, enzymes like trypsin operate in the basic environment of the small intestine. Should an enzyme's environment fall outside its pH range, the change in H+ concentration can alter the enzyme's structure and reduce its activity or even result in denaturation.
Understanding these conditions is critical because enzymes rely on their 3-dimensional shape to function. The noncovalent interactions, such as ionic bonds and hydrogen bonds, that maintain their shape are sensitive to changes in temperature and pH, which can disrupt these forces and the enzyme's activity.
What was the purpose of including a quadrant to which no lysozyme was added?
what is true of intercellular signals that do not go through direct connections between cells such as gap junctions? (A.They either match up with a receptor molecule on the surface of the cell or enter the cell through the membrane) (B. The carbohydrate tag is interpreted in the ribosomes, and the signal is passed on to the nucleus of the cell) (C. They connect with another cell part such as the Golgi apparatus, where hormones interpret the signal) (D. They connect with an adjacent cell where an ion linked receptor carries them into the nucleus)
The correct answer is option A. They either match up with a receptor molecule on the surface of the cell or enter the cell through the membrane.
The intercellular signals are the signals, which transfer the signals from one cell to the another and the intracellular signals are those signals, which carries message within the cell.
The intercellular signals may or may not be transferred through the gap junctions. The chemical signals are one of the type of the cell signals. The chemical signalling molecules generally have a receptor on the cells, where these molecules can bind and can be cause the activation of the cell. The chemical signals can also enter into the cells through active transport and facilitated diffusion. So, these type of transports does not go through the Gap junction.
The answer to your question is:
They either match up with a receptor molecule on the surface of the cell or enter the cell through the membrane.
Hope this helps....................
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solve:
6 more than X is equal to 33
Question:
6 more than X is equal to 33
Answer:
x = 27
what is the function of the septum
There are several septum's within the body. The term septum simply just means, a divide between two things. If you are referring to the cardiac septum; which separate the heart into left and right sides. There is a top portion of the septum which is called the atrial septum and the bottom portion of the septum; which is called the ventricular septum. They typically keep the deoxygenated blood and the oxygenated blood separated from each other.
If you're referring to the nasal septum, the nasal septum acts as a pathway stabilizer to make sure that the air we breathe in is not "lost" and gets resistance going into our lungs.
The septum in the heart, including the interatrial and interventricular septa, separates the chambers to ensure efficient circulation. The nasal septum, comprising bone and cartilage, divides the nasal cavity into two parts and supports nasal structure and function.
Explanation:The septum is a central structure in the anatomy of the heart that serves as a divider between its chambers, ensuring proper circulation of blood throughout the body. Two primary types of septa exist within the heart: the interatrial septum and the interventricular septum. The interatrial septum separates the left and right atria and features the fossa ovalis, which is the remnant of the foramen ovale from fetal development. This foramen ovale provided a pathway for blood to bypass the lungs and flow directly from the right atrium to the left atrium before birth. Shortly after birth, it is sealed by the septum primum. The interventricular septum, which is thicker than the interatrial septum, separates the left and right ventricles and is fundamental in maintaining the division between the high-pressure systemic and lower-pressure pulmonary circulatory circuits.
Aside from the heart, the nasal septum is another significant septal structure in human anatomy. It is a flat, midline structure that divides the nasal cavity into two halves, comprising the perpendicular plate of the ethmoid bone, vomer bone, and septal cartilage. This partition plays a critical role in directing airflow and supporting the structure of the nose.
Breathing is a coordinated effort of respiratory organs to A. receive nitrogen. B. receive carbon dioxide. C. eliminate oxygen. D. receive oxygen
Answer: D. receive oxygen
Explanation: Breathing is a coordinated effort of various respiratory system organs to receive oxygen and eliminate carbon dioxide. The cardiovascular system works in coordination with the respiratory system to receive oxygen into the blood and remove carbon dioxide out of the blood... PF
Breathing is a coordinated effort of respiratory organs to receive oxygen.
What is Breathing?Breathing (or ventilation) is the process of moving air into and from the lungs to facilitate gas exchange with the internal environment, mostly to flush out carbon dioxide and bring in oxygen.
All aerobic creatures need oxygen for cellular respiration, which extracts energy from the reaction of oxygen with molecules derived from food and produces carbon dioxide as a waste product.
The breathing of all vertebrates with lungs consists of repetitive cycles of inhalation and exhalation through a highly branched system of tubes or airways which lead from the nose to the alveoli.
Therefore, Breathing is a coordinated effort of respiratory organs to receive oxygen.
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What is the difference between a habitat and an ecosystem?
A habitat is the place where a plant or animal lives. All living things have adaptations that help them survive in their habitats. For example, plants and animals can only live in habitats that meet their needs.
An ecosystem is a group of animals and plants and their physical environment. Coral reefs are underwater ecosystems. Coral reefs are made from skeletons of tiny creatures. Deserts are also ecosystems and they get dry weather and very little rain.
antonym for chlorophyll
Filters and settling tanks remove solid materials from wastewater during the ____________ treatment step ?
Which organelles of a cell possess their own DNA?
lysosomes and plasma membrane
mitochondria and chloroplasts
the Golgi apparatus and ribosomes
two reasons why interdisciplinary science is important to society
The reason why interdisciplinary science is important to society is because of the following reasons; It has incorporate sources of knowledge and it is a way of increasing our knowledge. This science has made people realize and learn more things than they actually know and it made people understand things around them without having to actually think an explanation behind it.
how do constructive and destructive forces contribute to the rock cycle