What’s the correct answer answer asap

Yes,  Pisaster ochraceus is a keystone species  because helps to maintain balanced populations of seaweeds and the ecosystems that depend on them by controlling the numbers of mussels as well as barnacles.

This sea star contributes to the maintenance of healthy seaweed populations and the communities of sea urchins, sea snails, limpets, and bivalves that consume them by controlling the populations of mussels.

Note that Sea stars like this one, Pisaster ochraceus, were the first creatures to be recognized as keystone species.

A crucial species in the rocky marine intertidal communities off the northwest coast of North America is the starfish Pisaster ochraceus.

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This can be as simple as providing recycling and compost bins along with your regular trash and offering a service to properly dispose of this waste.

Poor waste management contributes to climate change and air pollution, directly affecting many ecosystems and species. Considered the last resort in the waste hierarchy, landfills release methane, a very potent greenhouse gas linked to climate change.

Sustainable waste management is important. This enables continued socio-economic development and protects the environment and health. It paves the way for developments that meet today's needs without jeopardizing the development of future generations. One of the first causes of poor waste management is lack of public awareness, and more specifically, lack of awareness and bad attitudes within companies.

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Answer:

B

Explanation:

it should be B. yup ..............

Materials move down a concentration gradient  is called a concentration gradient and the methods cells use to materials with out expanding energy is called Passive transport.

Passive transport tells  more about the shifting of substances down a concentration gradient and does not need any issue of energy consumption.

A concentration gradient is simply a stretch of space across which a substance's concentration alters. Substances will naturally travel down concentration gradients, from a higher concentration point  to a place or area that is known to be lower concentration area.

Therefore, substance diffuses over a membrane through passive transport as it diffuses along its concentration gradient without requiring any energy from the cell.

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See full question below

materials move down a concentration gradient and the methods cells use to materials with out expanding energy is known as what?

Answer:

Chemical Energy-Electrical Energy-Mechanical Energy

Explanation:

I took the test  and got 100%

Explanation:

Number 1 is not true because the temporal lobe controls visuals

Answer:

glycolysis

Explanation:

glycolysis is the first way involved in cellular respiration.

The correct option is B. Fatty acids that are broken down for energy production are utilized for which aspect of cellular respiration is glycolysis.

Through a sequence of processes known as glycolysis, glucose is divided into two pyruvate molecules, each of which has three carbons. Since the majority of species alive today still use glycolysis, it is an old metabolic route that developed long ago.

Glycolysis is the initial step in the process of cellular respiration in organisms. However, many anaerobic organisms—organisms that do not use oxygen—also contain this route since glycolysis does not require oxygen.

Therefore, The correct option is B. Fatty acids that are broken down for energy production are utilized for which aspect of cellular respiration is glycolysis.

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The density of the piece of metal given that it has a mass of 124 grams and a of volume 21 cm³ is 5.9 g/ cm³

Density is defined as mass per unit volume i.e

Density = mass / volume

With the above formula, we can obtain the density of metal as illustrated below:

Density = mass / volume

Density of metal = 124 grams / 21 cm³

Density of metal = 5.9 g/ cm³

Thus, the density of the metal is 5.9 g/ cm³

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Answer:

hi im akira bye dqwrrhtus6uiakykukrkr

Explanation:

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Answer:

a is the correct answer Human uses of wetlands, such as drainage for agriculture and filling for industrial or residential development, can impose irreversible impacts to wetlands.

The human activity that would decrease the biodiversity of a wetland is adding a drainage system. The correct option is 1.

Biodiversity refers to the diversity of life on Earth, which includes species diversity, genetic diversity, and ecosystem diversity.

It is critical for ecosystem health and function, as well as the services they provide, such as air and water purification, nutrient cycling, and climate regulation. Biodiversity has cultural, recreational, and economic significance.

The extinction of species, the loss of genetic resources, and disruptions to ecosystem services are all examples of how biodiversity loss can harm ecosystems and human well-being.

Adding a drainage system would reduce a wetland's biodiversity by altering the natural water flow and affecting the habitat of various species, resulting in a decrease in their population and diversity.

Thus, the correct option is 1.

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Answer:

all organisms contain one or multiple cells

Answer:

regular soil because

from small classes we learn that germination is nice for plqnts

How can scientific validity be ensured?

More variables under control, better measurement methods, more randomization to avoid sample bias, experiment blinding, and the addition of control or placebo groups can all help an experiment's validity.

What determines the reliability of scientific data?

How well a method measures what it is supposed to measure is known as its validity. When a study's findings are highly valid, it means that they accurately reflect the genuine features, traits, and variations in the physical or social reality. High dependability is one sign of a valid measurement.

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The ozone layer shields us from the harmful effects of impudent and UV radiation, which can show sunburn, skin cancer, and eye damage.

Earth's magnetic field, or magnetosphere, extends from the planet's core out into space, where it meets the solar wind, a brook of charged particles emitted by the sun.  The ozone layer buckles us from the harmful effects of immoderate UV radiation, which can lead to sunburn, skin cancer, and eye damage. Earth's magnetic field serves to divert most of the solar wind, whose charged particles would else strip away the ozone layer that protects the Earth from harmful ultraviolet radiation. Earth's magnetic field, also known as the geomagnetic field, is the magnetic field that extends from Earth's interior out into space, where it interacts with the solar wind, ozone layer stream of charged particles emanating from the Sun.

so we can conclude that The ozone layer shields us from the harmful effects of excessive UV radiation, which can lead to sunburn, skin cancer, and eye damage.

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a. Enzymes are a protein macromolecule and are made of amino acids.

b. Enzymes lower the activation energy, or the amount of energy needed for a chemical reaction to occur.

c. Enzymes do this by bringing molecules together and hold them in a specific orientation, allowing two molecules to form a chemical bond that would not normally form.

d. Enzymes recognize and interact with the specific molecules

e. During the reaction, enzymes themselves are not permanently used up and the enzyme is free to catalyze more reactions with others.

An enzyme is a substance that acts as a catalyst in living organisms, regulating the rate at which chemical reactions proceed without itself not completely used up during the process.

Enzymes lower the activation energy, or the amount of energy needed for a chemical reaction to occur.

In conclusion,  Enzymes are proteins and they act as catalysts in a cell. They speed up the rate of chemical reactions.

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Carbon dioxide leaves the plant's leaves through stomata, which are small openings. Two guard cells surround each stomatal opening.

Carbon dioxide the chemical compound CO2 is made up of molecules with one carbon atom covalently double-bonded to two oxygen atoms in each one of them.. It is found in the gas state at room temperature.

The path taken by a carbon dioxide molecule after it had passed through the stomata is-

Green plants use photosynthesis to absorb carbon dioxide from the atmosphere. The stomata on the leaves of this plant allow carbon dioxide to exit. Two guard cells surround each stomatal opening.

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The distance used to determine the work is less.

When an external force drives an object a specific distance, it transfers a certain amount of energy to the object, which is known as work. The amount of work performed on an object is a measure of the energy transmitted to it. Work is defined as the sum of the force component acting in the displacement direction and the displacement magnitude (d).

A measurement of the energy that is transferred when an object is moved over a distance by an external force, at least some of which is applied in the direction of the displacement.

The output of a force is calculated by multiplying its component acting in the displacement's direction by its magnitude.

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Answer:

body

inside your body ........

Plasmolysis is the process of the protoplasm of a plant cell contracting or shrinking, which is brought on by the cell's loss of water.Osmosis can lead to outcomes like plasmolysis, which is a rare occurrence in nature.

What causes cells to stop growing?

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Fungi, actinomycetes, lichens, earthworms and plants are the bioindicators of body of water or an ecosystem.

Use of ecosystem or water bioindicators yields the following image.

Bioindicators are used to evaluate the state of the environment and how it changes over time. They include biological processes, species, or communities.

Lichens are one type of bioindicator. These plants are extremely vulnerable to airborne since they grow on surfaces like dirt, rocks, and trees. This is so that they may get the majority of their nutrition from the air.

The quantity and variety of lichens on the trees in our forests are indicators of how clean the air is. Because different lichen species are more or less susceptible to air pollution, knowing which species are present can also give us an idea of the pollution level.

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Answer:

1. Sodium, oxygen, hydrogen

2. Carbon, oxygen, calcium

Explanation:

NaOH : sodium, oxygen, hydrogen

Na: sodium

O: oxygen

H: hydrogen

CaCO3 : carbon, calcium , oxygen

Calcium: Ca

Carbon: C

Oxygen: O

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Answer:

Mashed potatoes are cooked. The heat from cooking them denatures the enzyme Catecholase which causes raw potatoes to turn brown through oxidation when they are exposed to air.

Answer:There are three components to the control of mechanism of homeostasis.

Explanation:The three components are receptor,integrating center,and effector.

Here the graph is showing increasing trend  i.e;  the population is increasing year-on-year. Follow the trend from left to right and state whether it is going up, down, or staying the same to explain the graph.

A trendline is a line drawn above or below pivot highs or lows to indicate the price's primary direction. Support and resistance in any time frame are represented visually by trendlines. They depict patterns during times of price contraction and show the direction and pace of the price.

Your best chart for displaying trends over time is a line chart. The most effective visual display for highlighting change over time is a line chart. Think about two variables, one on each axis: vertical and horizontal.

Three main graph types used to visually depict data in biology are: The scatter plot, Linear graph , a bar graph.

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Answer:

It has an atomic number of 6. That means a carbon atom has 6 protons, 6 neutrons, and 6 electrons

Explanation:

The unequal sharing of electrons between the atoms and the unsymmetrical shape of the molecule means that a water molecule has two poles - a positive charge on the hydrogen pole (side) and a negative charge on the oxygen pole (side).