i need help please can anyone help?

Answer: Natural Selection

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Answer:

C. stage 3

Explanation:

Took the test

ANSWER:GIVEN BELOW

The climate of a region depends on many factors including the amount of sunlight it receives, its height above sea level, the shape of the land, and how close it is to oceans. Since the equator receives more sunlight than the poles, climate varies depending on its distance from the equator.

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Answer:

Temperature

Altitude or Elevation

Moisture or water vapour.

Explanation:

Answer:producer- seaweed and phytoplankton

Explanation:

There are two principal sorts of marine plants: algae and seagrasses The majority of plants in the ocean, like those on land, require sunlight for photosynthesis.

This indicates that they typically reside in the ocean's uppermost layers. But some marine plants, like coralline algae and kelp, are made to live in deeper water.

Several aquatic food webs begin with phytoplankton as their foundation. They provide food for a wide variety of sea creatures in an ecosystem that is balanced. Microalgae, or phytoplankton, are like terrestrial plants in that they have chlorophyll and need sunlight to live and grow.

Phytoplankton thrives in high-latitude areas, along the equator in the Pacific and Atlantic Oceans, and along coastlines and continental shelves. Because they propel currents that bring nutrients-rich deep water to the surface, winds play a significant role in phytoplankton distribution.

Algae have chloroplasts, which contain pigments like chlorophyll to absorb light for photosynthesis in every species. In addition, air bladders aid in maintaining some species of algae upright in the water so that they can utilize more of the sun's energy for photosynthesis.

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Answer:

Explanation:Climate is an important environmental influence on ecosystems. Changing climate affects ecosystems in a variety of ways. For instance, warming may force species to migrate to higher latitudes or higher elevations where temperatures are more conducive to their survival.

1. Early ideas about evolution:

2. Theories that influenced scientific debate over evolution:

3. Major sources of evidence for evolution:

4. Pattern of features revealing the history of a species:

These concepts and lines of evidence collectively support the understanding of evolution and provide insights into the history and development of species over millions of years.

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Answer:

cells are the smallest structural units of living matter and compose all living things.

Explanation:

fact

matter is everything (living and non living)

cell is the basic unit of organism (living)

so cell is part of matter cause matter compose everything int the universe

cells are the basic small and structural units of living matter and composed of organelle mostly made up of biomolecules.

Cell is the basic structural unit of any living system, present in animal, plant, microbes etc where Bacteria are unicellular in nature as it is composed of single cell, higher eukaryotic organisms are multicellular like plants and animal cell as it is made up of multiple cells.

The prokaryotic cells are simplest cell which have a cell membrane, cytoplasm and other cell organelles where the metabolic processes occur, ribosome is the organelle where protein synthesis occur, and nucleoid carry genetic information, reproduce by binary fission.

The eukaryotic cells are more complex which have cell membranes, cytoplasm, ribosomes, and nucleus, rough endoplasmic reticulum, smooth endoplasmic reticulum for lipids, Golgi apparatus for protein sorting and exporting.

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The model of magnetic attraction and magnetic repulsion are given below:

Repulsion: N <----> N or S <----> S

Attraction: N ---><--- S or S --><--- N

The law of magnetism states that like poles repel and unlike poles attract.

The poles of a magnet refer to the ends of a magnet. There are two poles in a magnet; the North pole and the South pole.

The North pole of a magnet is the end of the magnet that points toward the geographical north when a bar magnet is suspended in the Earth's magnetic field.

The south pole of a magnet is the end of the magnet that points toward the geographical south when a bar magnet is suspended in the Earth's magnetic field.

When two North poles of a bar magnet are brought close to each other, they repel themselves. Similarly, when two South poles of a bar magnet are brought close to each other, they repel themselves.

However, when a North pole and a South pole of a bar magnet are brought close to each other, they attract themselves.

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Answer:

February 10, 1763.

Explanation:

Answer:

Answer is Glucose because First of all lipids and lipase are not carbohydrates so they cant be the answer and the cellulose is very complex carbohydrate so it is first broken down into monosaccharides then we could use it to make ATP. Whereas, Glucose is a monosaccharide which is the simplest form of carbohydrate so it is converted into ATP to provide energy

cellulose

lipid

Explanation:

Answer: sucrose is not a reducing sugar

Explanation: Benedict solution is used to test for the presence of reducing sugar. Sucrose is a non-reducing sugar unlike maltose and lactose which are reducing sugars thus there is no color change when Benedict solution is added to it.

Answer:

B: The number of neutrons

Explanation:

The difference is how many neutrons each has. Carbon-13 has 7 neutrons and C-14 has 8 neutrons.

Answer:

It has 15 different known isotopes, including carbon-13 and carbon-14. Carbon-13 makes up about 1% of all carbon atoms on Earth, while carbon-14 is used in radiocarbon dating because it decays into nitrogen-14 with a half-life of 5730 years.

Explanation:

It's B

Answer:

contact tracing and global surveilliance

Global surveillance of emerging infectious diseases aims to rapidly detect changes in the incidence rate of endemic diseases and in promptly recognizing and characterizing syndromes caused by previously unknown pathogens of epidemic potential.

Contact tracing has provided a way for local and state officials to prevent the spread of disease before it can affect the majority of the citizens in an area.

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Answer:

Masks and Vaccines

Explanation:

Masks will prevent others from getting sick if you have a virus or if they have a virus.

Vaccines help your body remember the virus so the next time it attacks your body can combat them.

The main result of blocking the action of short peptide chemical communication signals with the developed drug would be disruption or interference with intercellular communication processes mediated by these peptides.

Short peptide chemical communication signals play a crucial role in intercellular communication within organisms. They act as signaling molecules that transmit information between cells, coordinating various physiological and biochemical processes. By blocking the action of these short peptide signals with the developed drug, the communication between cells that relies on these signals would be disrupted or impaired.

The drug's mechanism of action could involve binding to the receptors or enzymes involved in the signaling pathway, inhibiting their function, or interfering with the production or release of the short peptides themselves. As a result, the transmission of signals that regulate processes such as cell growth, differentiation, immune responses, and hormonal regulation could be disrupted.

The specific consequences of blocking short peptide chemical communication signals would depend on the particular signaling pathways and the functions of the peptides involved. It could lead to abnormal cellular responses, altered physiological processes, and potential imbalances in homeostasis.

Therefore, the overall result of blocking these signals would be a disruption in intercellular communication and subsequent effects on various biological processes.

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If two loci act independently during meiosis, they are most likely found on different chromosomes. If two loci are on the same chromosome, they can be inherited together and are not considered independent. The correct option for the given question is c) .

This statement is true because loci are the position of a gene on a chromosome and meiosis is a process that involves the separation of chromosomes. During meiosis, homologous chromosomes pair up and separate during the first meiotic division. The separation of homologous chromosomes is random and independent of each other.

This means that the genes located on different chromosomes separate independently during meiosis. The genes located on the same chromosome can segregate together if they are close to each other, which is called linkage.

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Explanation:

you need to put the pic down too

Answer:

its just the opposite letters g+c a+t or g+c and a+u

Explanation:

Answer:

Subject Course : Earth Science

1.

What kind of breeze occurs during the day in coastal areas?

✔️ breeze

valley breeze

mountain breeze

land breeze

2.

What is the main factor that affects local winds?

trade winds?

✔️the Coriolis effect

uneven heating of Earth’s surface

altitude

3.

What type of breeze occurs near mountains at night?

valley breeze

land breeze

✔️mountain breeze

sea breeze

Explanation:

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Answer:

Prophase, Metaphase, Anaphase, Telophase

Explanation:

Here's a shortcut to remember: PMAT

Each of the following terms is a descriptive term for a muscle's action except quadriceps. Large fleshy muscle group encompassing the front and sides of the leg is called the quadriceps femoris.

The rectus femoris, vastus lateralis, vastus medialis, and vastus intermedius are its four component sections. They begin at the ilium (the top of the pelvis, or hipbone), the femur (the thighbone), the patella (the kneecap), and the tibia (where they insert and are joined) (shinbone). These muscles are crucial for standing, walking, and nearly all other leg-related actions because they extend the legs at the knee.

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Answer:

the systematic study of the structure and behavior of the physical and natural world through observation, experimentation, and the testing of theories against the evidence obtained

Explanation:

Explanation:

Science is the pursuit and application of knowledge and understanding of the natural and social world following a systematic methodology based on evidence.

Answer:

b. Alternatives to nonrenewable energy sources can be as effective.

Explanation:

Sources of energy can either be renewable or nonrenewable. Nonrenewable sources of energy e.g petroleum, coal etc are those that are used faster than can be replenished. They tend to release pollution into the environment.

On the other hand, renewable sources of energy has been employed in order to reduce the debilitating effect caused by the nonrenewable sources. Renewable sources of energy, which include solar, wind etc are being technologically used to produce energy. They have proven effective in the sense that they generate energy in an eco-friendly manner. This is the reason they are called Green or clean energy.

Renewable sources are found to be effective and eco-friendly alternatives to the nonrenewable sources.

Answer:

b. Alternatives to nonrenewable energy sources can be as effective.

Answer:

The question is incomplete, the missing part i.e. the environmental change is:

(A) biomagnification

(B) acid rain

(C) eutrophication

The answers are:

1. Acid rain- Chemicals react with water and oxygen that enter water systems.

2. Eutrophication- Nutrients in excessive amounts enter water systems, causing algal bloom.

3. Biomagnification- A high concentration of toxic chemicals is present in the bodies of animals at the highest trophic levels

Explanation:

1. Acid rain is an environmental disorder in which rainfall becomes acidic due to pollution. The pollution is as a result of the release of gaseous chemicals e.g sulfur, nitrogen oxide, which are produced by industries, into the atmosphere. These chemicals then react with water in the atmosphere to form acidic solutions, which then falls back as rain. Hence, chemicals reacting with water and oxygen that enter water systems describes ACID RAIN.

2. Eutrophication is the pollution of water bodies with substances containing chemicals like nitrogen, phosphorus etc. The chemicals, which are in excess, serve as nutrients to algae, which uses them to grow excessively forming a bloom called ALGA BLOOM. Hence, nutrients in excessive amounts entering water systems, causing algal bloom describes EUTROPHICATION.

3. Biomagnification refers to the build up or accumulation of toxic chemical substances in the body systems of living organisms higher up in the food chain. Pollutants like pesticides, herbicides flow into water bodies and are absorbed by certain aquatic organisms. When these organisms are fed on by consumers, the harmful substances accumulates in their tissues until it reaches a maximum concentration. Hence, a high concentration of toxic chemicals present in the bodies of animals at the highest trophic levels describes BIOMAGNIFICATION.

Answer:

1. Acid rain- Chemicals react with water and oxygen that enter water systems.

2. Eutrophication- Nutrients in excessive amounts enter water systems, causing algal bloom.

3. Biomagnification- A high concentration of toxic chemicals is present in the bodies of anima

Explanation:

. The three main functions of the endocrine system are: Metabolism regulation, Growth and development , Homeostasis

Metabolism regulation: The endocrine system helps to regulate the body's metabolism, which includes the processes that convert food into energy and the storage of that energy. Hormones such as insulin and thyroid hormones play a key role in regulating metabolism.

Growth and development: Hormones produced by the endocrine system play a crucial role in the growth and development of the body.

Homeostasis: The endocrine system helps to maintain the body's internal environment and ensure that it remains stable and balanced. This is known as homeostasis.

The endocrine system is a collection of glands and organs that secrete hormones into the bloodstream to regulate various bodily functions

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The hormone vasopressin or antidiuretic hormone (ADH) is secreted by the pituitary gland.

The pituitary gland is a small, pea-sized gland located at the base of the brain. It is divided into two parts: the anterior pituitary and the posterior pituitary. Vasopressin is produced by specialized cells in the hypothalamus called the supraoptic and paraventricular nuclei. These cells synthesize ADH and transport it to the posterior pituitary, where it is stored and released into the bloodstream when needed.

ADH regulates the water balance in the body by promoting water reabsorption in the kidneys. It does this by acting on the kidneys to increase the number of aquaporin channels in the collecting ducts, allowing more water to be reabsorbed from the urine and returned to the bloodstream. This helps to conserve water in the body and prevent dehydration.

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It can lead to fatigue, shortness of breath, and coughing. Some people with heart failure find it difficult to do things such as walking, climbing stairs, or carrying groceries. High blood pressure or hypertension means the force or pressure of the blood flowing through the vessels is consistently too high.

The body by a malfunction (breakdown) in the circulatory system would be affected as follows:

The circulatory system is the anatomical structure responsible for pumping, transporting and distributing blood throughout the body and is made up of the heart and blood vessels (arteries, veins and capillaries).

A malfunction in the circulatory system can cause the blood that provides nutrients and oxygen to the cells not to reach, the cells die and the person can suffer heart attacks or angina pectoris.

Therefore, we can conclude that a malfunction in the circulatory system would affect the cells of the body causing the person to suffer heart attacks or angina pectoris.

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