Which of these is an example of a chemical change?
O A. Dissolving salt in water
O B. Melting loe
OC. Breakina tree branch
D. Burning a piece of wood

Answer:

Soft tissue or subsheath keeps the tendon in place at the wrist. A sudden forced rotation or hyperextension can cause this subsheath to tear and allow the ecu to move out of its natural groove.

Explanation:

Based on the characteristics above, this toxin can be categorized as EXOTOXIN. These toxins (exotoxins) are produced by different types of bacteria.

Exotoxins are a broad category of proteins produced by bacteria that enter host cells in order to alter their physiological properties.

These toxins (exotoxins) can be secreted by Gram-negative bacteria and Gram-positive bacteria.

Examples of exotoxins include botulinum toxin secreted by Clostridium botulinum bacteria, tetanospasmin toxin secreted by Clostridium tetani bacteria, etc.

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Answer:

Index fossils help to identify specific time periods. They are made from organisms that were distinctive, widespread, and lived briefly. Index fossils help to identify specific time periods. They are made from organisms that were distinctive, widespread, and lived briefly.

Explanation: hope this helps :)

Answer:

index file

hope this helps

:)

Explanation:

Answer:

(a) because everyone is dmsrtll

Cells that can differentiate into any cell type in an organism are referred to as pluripotent cells.

Pluripotent stem cells are cells that have the ability to self-renew by splitting and growing into the three immediate germ cell layers of the earlier embryo.

Hence into all cells of the grown-up body, but not extra-embryonic tissues such as the placenta.

Thus, pluripotent cells are Cells that can differentiate into any cell type in an organism.

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Because they lack vascular system !

Answer:

Nucleus - Controlls like the Captin or the control center of the ship

Ribosome - People that make the ship run

Vacuole - Rooms for guests to stay in.

Cytoplasm - Floor for people to walk on

Cytoskeleton - Walls of the ship (this could also be Cell wall)

Mitochondria - The fuel source

Endoplasmic Reticulum - It's a highway so maybe the halls or any main point on the ship where alot of people are.

The reticular activating system's main function is regulating transition between arousal and sleep−wakeness.

The reticular activating system (RAS) is a bundle of nerves located in the brain and  it is responsible for regulating wakefulness and sleep-wake transitions.

 It  is also involve in filtration of noise with processing of messages or make it slower during  sleep, it alters the  brain's electrical activity,  electrical voltage of brain waves and the speed.

The primary function of RAS is higher at brain centres when important messages are received and filter the important messages, for example The eye sends messages to the brain through the optic nerve.

If the RAS system is damaged, it can cause sleep problems, lethargy, or coma, also play a role in narcolepsy and degenerative brain disorders like Parkinson's disease and supranuclear palsy

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Answer: What Paragraph?

Explanation:

There is no paragraph, this could mean that the main idea is anything

Answer:

The major difference between Gram-positive and Gram-negative peptidoglycan involves the thickness of the layers surrounding the plasma membrane. Whereas Gram-negative peptidoglycan is only a few nanometers thick, representing one to a few layers, Gram-positive peptidoglycan is 30–100 nm thick and contains many layers.

Explanation:

Answer: DNA is found in every cell of our body– except red blood cells (no nucleus). Genes are a segment of DNA. Our genes are the blueprint for our biology.

Explanation:

Answer:

Peristalsis is a series of wave-like muscle contractions that move food through the digestive tract. ... There, the food is churned into a liquid mixture called chyme that moves into the small intestine where peristalsis continues. Stretching out a piece of intestine will make it easier to see the wave-like motion

Answer:

Its width.

Explanation:

The size of pyrimidines and purine is different because each group has a different structure (1 or two rings). Therefore, the width of DNA is "constant".

If we would pair two pyrimidines or two purines, the width of DNA would be different in both cases.

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The following steps required before biological processes can break down organic material in wastewater is Aeration basins and Primary clarifiers.

Water treatment refers to any technique that enhances the quality of water in order to make it suitable for usage by humans in homes and offices.

There are certain processes involved in the treatment of water. These includes:

In the screening and pumping process, materials and objects are removed from the entering wastewater using screening machinery. The extracted material is cleaned, crushed, and disposed of in a landfill.

In the grit removal, fine particle materials are eliminated from the wastewater.

Enormous circular tanks are known as clarifiers that receive the materials. Settled material acknowledge as primary sludge, is pushed to the tank's bottom, while the wastewater leaves from the top.

At the aeration stage, the wastewater receives the majority of its treatment. Pollutants are absorbed by microorganisms and turned into cell tissue, H2O, and nitrogen through biological breakdown processes.

The water treatment process was ended with filtration and disinfection to enable the water to be free from bacteria.

Therefore, we can conclude that the steps required before biological processes can break down organic material in wastewater is Aeration basins and Primary clarifiers.

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Answer:

Respiration,Growth,Nutrition ,Reproduction and Excretion

Explanation:

Answer:

venus

Explanation:

Answer:

A

Explanation:

sunlight is the main change. sun light cannot penetrate into the deep layers of the ocean and availability of oxygen is also low there. this causes the considerable amount of organisms to live in the upper layers of the ocean and we can only observe decomposing organisms in the deeper layers!

Answer:D

Explanation:

It only make sense.

Answer:

False

Explanation:

Eukaryotes are larger

Answer: True, Happy To Help

Explanation:

Answer:

Basal cell carcinoma develops from the youngest epidermal cells.

Answer: A species of flower develops a gene that results in a more attractive nectar causing more pollinators to be attracted

Explanation: I think it’s that one and sorry if I’m wrong but to me the other choices don’t seem to fit as a hurricane kills 70% isn’t helping any organisms adapted and the other two choices no organisms is adapted but the first, the flowers have to adapt as they develop a new gene and it also affects pollinators

Answer:

D giardiasis is the correct answer :)

An example of a communicable disease is giardiasis, which is in option D. Giardiasis is an example of a communicable disease. It is caused by a microscopic parasite called Giardia lamblia.

This disease affects the digestive system, causing symptoms such as diarrhea, abdominal cramps, bloating, and nausea. It is typically transmitted through the ingestion of contaminated food or water that has been contaminated with the parasite. Chronic respiratory disease includes conditions such as asthma, chronic obstructive pulmonary disease (COPD), and bronchitis, which are usually caused by long-term exposure to irritants or genetics and are not directly communicable.

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Answer:

b permeated diffusion ...........

Answer:

Hahahah

Explanation:

The iron nail produces electric current that attracts the pieces of iron is the right one.

Answer:

phenotype plz mark me brailiest

Explanation:

Answer: phenotype :)

Explanation:

lesson 2 unit 3 genetics phenotype – the physical manifestation of a genotype

Answer:

50 million nucleotide pairs

The typical human chromosome contains 50 million nucleotide pairs

in its DNA.

Deoxyribonucleic acid (DNA) is a polymer composed of two polynucleotide chains that coil around each other to form a double helix carrying genetic instructions for the development, functioning, growth and reproduction of all known organisms and many viruses. DNA and ribonucleic acid (RNA) are nucleic acids. Alongside proteins, lipids and complex carbohydrates (polysaccharides), nucleic acids are one of the four major types of macro molecules that are essential for all known forms of life.

Hence, The typical human chromosome contains 50 million nucleotide pairs.

in its DNA.

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