What happened to the sound wave when it encountered air of a different temperature?


(A) The sound wave changes speed and direction, bending away from the denser air and towards less dense air.


(B) The sound wave changes speed and direction, bending away from the less dense air and towards more dense air


(C) The sound wave changes direction but not speed, bending away from the less dense air and towards more dense air.


(D) The sound wave changes direction but not speed, bending away from the denser air and towards less dense air

Answer:

If you know that "tri" represents the number three, then it's easy to figure out that "tricycle" is something that has three wheels.

Explanation:

Prefix Number Examples

tri- 3 tricycle, triathlon, tripod, triglyceride, triangle, trigonometry, triangulation, trilingual, triumvirate, trillion

The anticipated frequency of the a2a2 genotype is 0.11 if a population has an allele a1 frequency of 0.35 and an allele a2 frequency of 0.65.

The incidence of a gene variant within a population is indicated by the allele frequency. Different gene types called alleles to share a genetic location on a chromosome. One can calculate the allele frequency by dividing the total number of copies of all the alleles at that particular genetic locus in the population by the frequency with which the target allele is found in a population.

The expression of allele frequencies can be done in decimal, percentage, or fractional form. The allele frequencies of a population reveal the diversity of its genetic makeup. If the allele frequencies shift over time, the population may be subject to genetic drift or be receiving new mutations.

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We can protect ourselves from biological hazards associated with animals and insects by the following methods: Avoid contact with animal feces, Wear the proper PPE and practice personal hygiene.

In the field of science, biological hazards can be described as any hazard that can be caused by a living organism. The most common biological hazard is caused by small organisms that reproduce quickly.

If we want to protect ourselves from hazards from animals and insects, then we need to stay away from animal feces as animal feces is the place where disease-causing microorganisms will be present.

Wearing proper personal protective equipment (PPE) will abstain any contact with the animal or insects and hence will keep us protected.

Also, practicing personal hygiene will let us stay away from any kind of hazard that might arise from animals.

Although a part of your question is missing, you might be referring to this question:

How can you protect yourself from biological hazards associated with animals and insects?

Select the 3 answer options that apply.

-Avoid contact with animal feces

-Wear the proper PPE

-Be cautious around debris piles

-Practice personal hygiene

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Answer:

Avoid contact with animal feces

Wear the proper PPE

Be cautious around debris piles

Explanation:

Genes for traits are found on chromosomes

Traits in living things are decided by genes, which are found on chromosomes. They are found on tiny cells inside an organism called chromosomes.

In simple terms, chromosomes have something called DNA, which has specific parts called genes. These genes have instructions for making certain traits. When creatures have babies, they give them chromosomes. These chromosomes have genes that decide how the baby will look and act.

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The best way to explain the discrepancy between the normal length of prolactin (199 amino acids) and the length of the polypeptide synthesized in the experiment (227 amino acids) is that in the absence of Signal Recognition Particle (SRP) and the Endoplasmic Reticulum membrane,a prolactin precursor molecule is therefore synthesized.

Prolactin also plays a role in the stimulation of the proliferation of oligodendrocyte precursor cells.

Relating to all, The Signal Recognition Particle plays a crucial role in mediating the transport of secretory and membrane protein to the Endoplasmic Reticulum or plasma membrane.

This can occur both in the prokaryotic or eukaryotic cell.

The structural and functional distinctions between rough and smooth ER can be noted with respect to storage and metabolism.

When viewed under a microscope, RER has ribosomes adhering to its outer surface, which gives it a rough look. Proteins that will be secreted, integrated into membranes, or transported to other organelles are created by the ribosomes on the RER. RER is typically more prevalent in immune system cells or pancreatic cells that are engaged in protein synthesis. While SER seems smooth because there are no ribosomes on its surface. It participates in the synthesis and metabolism of lipids, including steroids and phospholipids, and it has a part to play in cellular detoxification procedures like the metabolism of poisons and medicines. It serves as a calcium ion storage site and assists in the control of calcium ion levels.

The production and processing of proteins is RER's primary duty. Using instructions from messenger RNA (mRNA), the ribosomes linked to the RER create proteins. RER makes it easier for proteins to fold, modify, and assemble to form their useful three-dimensional structures. As opposed to this, SER is engaged in lipid metabolism, including the synthesis of lipids like cholesterol and phospholipids. By using enzymes found in its membrane, it takes part in the metabolism and detoxification of medicines, poisons, and hazardous chemicals. Calcium ions, which are necessary for cellular signalling and muscle contraction, are stored and released by SER.

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Answer:The reefs create a shelter for organisms and food

Explanation:Therefore it now created a more populated area for more animals or organisms to live.

Answer:

Plato

Explanation:

Many animals depend on corals for food and protection. By restoring the reefs using this method, they may be able to protect other populations of organisms from declining as well.

Answer:

a. domain

Explanation:

I am assuming that you are looking for the largest system, in that case it is domain.

From this list, it goes

Domain>kingdom>phylum>taxonomy

hope this helps :3

Answer:

No they cannot

Explanation:

Fungi, which are also heterotrophs as well as other heterotrophic organisms cannot produce their own energy for their own function because they do no make their own food. That is they do not have chloroplasts and therefore obtain energy from autotrophs ( organisms that make their own food for energy)

Cyanobacteria, photosynthetic organisms that produce oxygen as a byproduct first appeared.

Answer:

Bacterial cells do not have a nucleus. They also lack membrane-bound organelles, such as mitochondria or chloroplasts. The DNA of a bacterial cell is also different from a eukaryotic cell.

Explanation:

Eukaryotic cells are by definition those that have a membrane-bound nucleus, a morphological component that is absent from bacterial and archaeal cells.

Eukaryotic cells are distinguished by numerous membrane-bound structures in addition to the nucleus, including the endoplasmic reticulum, Golgi apparatus, chloroplasts, mitochondria, and others.

Prokaryotic cells lack membrane-bound structures, whereas eukaryotic cells do, including the nucleus.

The existence of mitochondria and chloroplasts, the cell wall, and the makeup of chromosomal DNA are all examples of differences between the cellular structures of prokaryotes and eukaryotes.

Therefore, prokaryotic cells are the name for bacteria's cells. Eukaryotic cells are cells that are found in mammals, plants, and fungi.

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Answer:

Glucose is a carbohydrate, and is the most important simple sugar in human metabolism. ... Glucose is one of the primary molecules which serve as energy sources for plants and animals. It is found in the sap of plants, and is found in the human bloodstream where it is referred to as "blood sugar"

Explanation:

The  6 importance of environmental science​ are:

Environmental science aids resource understanding, conservation, and preservation for future generations. Utilize resources sustainably to avoid harm to the planet.

Environmental science explains biodiversity and species' roles in ecosystems. Environmental science aids in protection of endangered species and controlling pollution. It aids development of pollution control measures to minimize impact on environment & understand impact of enviro factors on human health.

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The pain carried by small nerve fibers are slower, nagging, aching, widespread, and extremely unpleasant. This is the body's nociceptive system.

The statement describes the characteristics of pain carried by small nerve fibers, which are associated with the body's nociceptive system. The nociceptive system is responsible for detecting and transmitting pain signals from various parts of the body to the brain. Small nerve fibers, particularly C-fibers and Aδ fibers, are involved in carrying these pain signals.

The described qualities of pain, such as being slower, nagging, aching, widespread, and extremely unpleasant, are commonly associated with the nociceptive system's response to tissue damage, inflammation, or other harmful stimuli. These pain signals are transmitted to the brain, where they are processed and interpreted as pain sensations.

The nociceptive system plays a crucial role in alerting the body to potential or actual harm, allowing individuals to take appropriate actions to protect themselves or seek necessary medical attention. Understanding the nociceptive system helps in diagnosing and managing pain conditions and developing effective pain management strategies.

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Answer:

In this food web the snake is a secondary consumer

Explanation:

There are two things that are bigger and stronger than snakes, the bird and wolf. But the snake does not eat the plants. Primary consumers eat primarily vegetarian. Secondary consumers eat primary consumers. Hope this helps! :)

Answer:

c. 2nd level consumer

Explanation:

Snakes are at the 2nd level in the food web.

Answer:

Plant cells are enclosed by a rigid cell wall. When the plant cell is placed in a hypotonic solution, it takes up water by osmosis and starts to swell, but the cell wall prevents it from bursting. The plant cell is said to have become 'turgid', i.e. swollen and hard.

Explanation:

Answer:

Effects of osmosis in plant cells answer below

Explanation:

Plant cells are enclosed by a rigid cell wall. When the plant cell is placed in a hypotonic solution, it takes up water by osmosis and starts to swell, but the cell wall prevents it from bursting.

Answer:

Does this help?

Explanation:

Plants are very efficient when it comes to supplying for people. Plants not only allow us to breath, but we can also feed off them. We can always grow plants. Planting is also better for the environment. Less people will pay for fruits and vegetables. Even with all the advantages of just supplying plants as human food, it would be almost, if not impossible to feed the entire population all year off salads.

Microfilaments (Actin filaments), Intermediate filaments and Microtubules - these three components of the cytoskeleton work together to provide structural support, maintain cell shape, facilitate cell movement, and enable various cellular processes.

The major molecular structural components of the rods and tubules of the cytoskeleton are as follows:

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C. Uncontrolled muscle contraction

If a disorder makes it impossible for ATP to bind to the myosin head, a person would be suffering from symptoms like uncontrolled muscle contraction. Thus, the correct option is C.

Myosin may be defined as a superfamily of motor proteins that convert chemical energy in the form of ATP to mechanical energy. This will generate force and movement.

During the controlled muscle contractions, ATP must bind to the myosin head to disrupt the cross-bridge which is formed with actin and enables the myosin to rebind to actin spontaneously.

Therefore, the correct option for this question is C.

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The product of the electron transport chain that is not listed is: A. NAD+

During the process of oxidative phosphorylation, which occurs in the electron transport chain, electrons are transferred along a series of protein complexes embedded in the inner mitochondrial membrane. This electron flow ultimately leads to the production of ATP, which is the energy currency of the cell.

B. Oxygen is the final electron acceptor in the electron transport chain. It accepts electrons and combines with protons to form water (E), which is an essential product of this process.

C. ATP is synthesized through chemiosmosis, driven by the electron flow in the electron transport chain. It is a direct product and serves as the main energy source for cellular processes.

D. FAD (flavin adenine dinucleotide) is a coenzyme that carries electrons in the electron transport chain, similar to NADH. While FAD is not directly listed as a product, it participates in the electron transfer reactions.

A. NAD+ is not a product of the electron transport chain but rather a coenzyme that functions as an electron carrier. NAD+ accepts electrons during glycolysis and the citric acid cycle, and it is then reduced to NADH. NADH, in turn, donates electrons to the electron transport chain for ATP synthesis.

Overall, the electron transport chain produces ATP, water, and NADH as important products, while NAD+ is not directly produced but rather participates in the electron transfer reactions.

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D) the ability to grow larger and transport water and nutrients

xylem is like an artery

phloem is like the esophagus

Britannica

The cellular compartment where vesicles involved in lipid and protein storage are located in the cytosol is the endoplasmic reticulum (ER).

Specifically, the rough endoplasmic reticulum (RER) is responsible for protein storage and synthesis, while the smooth endoplasmic reticulum (SER) is responsible for lipid storage and synthesis. Vesicles bud off from these compartments to transport the stored molecules to other parts of the cell or to be secreted outside the cell.

Vesicles involved in lipid and protein storage are typically located in the endoplasmic reticulum (ER) and the Golgi apparatus within the cytosol of a cell. These organelles play key roles in processing, packaging, and storing proteins and lipids for various cellular functions.

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Answer:

Modern biology is defined as;

a. Heptathlon of knowledge

Explanation:

Modern biology consists of knowledge in the following three different fields including;

1) Zoology

2) Botany

3) Microbiology

Within the three main fields are the following four subdisciplines

1) Biochemistry

2) Ecology

3) Genetics

4) Physiology

The three main biological fields, and the four subdisciplines together, form seven (heptathlon) branches of knowledge in modern biology

Answer:

hepathlon of knowledge

Explanation:

Answer:

Phospholipids , Glycolipids , and Cholesterol

Explanation:

Answer:

Answer:

B

Explanation:

Took the test

The trend in valence electrons is there among the main-group elements is the number of valence electrons increases by 1 for each element as you move from left to right across a period. Therefore, option B is correct.

An electron is a negatively charged subatomic particle that can be bound to or free from an atom. A bound electron is one of the three primary types of particles within an atom, the other two being protons and neutrons.

Quarks make up protons and neutrons, but electrons do not. Quarks and electrons, as far as we can tell, are fundamental particles made up of nothing smaller. It's one thing to say that everything is made up of particles.

The trend in valence electrons is there among the main-group elements is the number of valence electrons increases by 1 for each element as you move from left to right across a period.

Thus, option B is correct.

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Answer:

A. Several factors affect how sediment settles.

Explanation:

Several factors affect how sediment settles. Sediment is removed from a new surface location. Moving water affects where sediment travels. Rocks are broken into smaller particles.

Answer:

the answer is A - several factors affect how sediment settles

Explanation: