Answer:
The stomach is a muscular organ located on the left side of the upper abdomen. The stomach receives food from the esophagus. As food reaches the end of the esophagus, it enters the stomach through a muscular valve called the lower esophageal sphincter. The stomach secretes acid and enzymes that digest food.
Hope this helps:)
if an earthworm is 18mm long and is photographed and the picture is magnified 2.5x how long will it be in the picture?
Answer:
The earthworm will be 45 mm long in the picture
Explanation:
From the problem, we can take the original size of the earthworm to be 18mm.
Magnification can be obtained using the formula:
magnification = observed size/ original size.
Recall, we are given that the magnification is 2.5.
Hence, can evaluate the size in the picture to be
2.5 X 18mm = 45mm
Identify the order of the eight levels of taxonomy, from least specific (largest) to most specific (smallest),
using the drop down menus.
v Family
Genus
v Kingdom
v Domain
v Class
vSpecies
Order
Phylum
V
I use the mnemonic, "Dear King Philip Came Over For Great Spaghetti" to remember the eight levels of taxonomy from largest to smallest: Domain, Kingdom, Phylum, Class, Order, Family, Genus, Species.
Answer:
Identify the order of the eight levels of taxonomy, from least specific (largest) to most specific (smallest), using the drop down menus.
✔ Level 6
Family
✔ Level 7
Genus
✔ Level 2
Kingdom
✔ Level 1
Domain
✔ Level 4
Class
✔ Level 8
Species
✔ Level 5
Order
✔ Level 3
Phylum
Explanation:
What are the environmental factors that define a tropical rainforest environment?
Answer:
Very rainy, wet, and hot.
Phagocytes often do not recognize bacterial cells with capsules, increasing the likelihood they will survive and cause disease. What other benefits could capsules give bacterial cells?
Answer: Other benefits that a capsules can give to bacteria includes:
--> slowing the penetration of antibiotics or chemicals,
--> it helps bacteria to adhere to surfaces
--> it prevents them from drying out as it contains water components.
Explanation:
Most microorganisms such as bacteria, virus, and parasites, are free living that benefits both plants and animals. The microorganisms that have the ability to cause disease are called pathogens. Infection occurs when pathogens are able to establish itself in a person through the use of its virulent factors. A typical example of virulent factors include the CAPSULES.
Capsules are made up of polysaccharides which lines the outer layer of a bacteria cell envelope. Example of such bacteria includes:
--> Streptococcus pneumoniae,
--> Klebsiella pneumoniae,
--> Haemophilus influnzae, and
--> Neisseria meningitis
These bacteria secrete a capsule around their cell wall which helps to prevent opsonization and phagocytosis by phagocytes of immune system of the host. This helps them to survive and cause disease. Other benefits that a capsules can give to bacteria includes:
--> slowing the penetration of antibiotics or chemicals,
--> it helps bacteria to adhere to surfaces
--> it prevents them from drying out as it contains water components.
12. Removing an organism from an ecosystem will have which of the following affects? Select all that apply.
A. Increase in biodiversity
B. Decrease in biodiversity
C. Increase in the overall health of the ecosystem
D. Decrease in the overall health of the ecosystem
Answer:
B and D
Explanation:
Biodiversity comes from having multiple types of organisms. This also allows different organisms to eat and create nutrients that is needed by all other organisms in the ecosystem.
Which structures protect the cell? Check all that apply.
cell wall
cell membrane
mitochondrion
nucleus
ribosome
Golgi body
Answer:
Golgi body
cell wall
ribosome
nucleus
Explanation:
Answer:
Cell wall.
Cell membrane.
:)
how are humans and plants alike in adjusting to changs in the environment?
The composition of ocean water can change.
True
False
Ocean Composition can change only if wastes, or substances are introduced into it.
Ocean Composition change?Ocean Composition cannot change because it already contain the fixed amount of constituents in it.
It can change also if some particles or substances are introduced into it.
Ocean refer to water that have more concentration of salt. It is also called seawater and it contain mixture of 96.5 percent water, 2.5 percent salts, and smaller amounts of some substances such as particles, gases, dissolved organic and inorganic substances.
Therefore, Ocean Composition cannot change because it already contain the fixed amount of constituents in it.
It can change also if some particles or substances are introduced into it.
Learn more on ocean water from the link below.
https://brainly. com/question/1292930
What is brine rejection?
Answer:
hope this is right.
Brine rejection is a process that occurs when salty water freezes. The salts do not fit in crystal structure of water ice, so that salt expelled. Since the oceans are, this process is important in nature. In better understanding, as salt water freezes, the salt is pushed out of solution through channels in the ice. This process is called brine rejection or brine exclusion.
Describe at least two signs that indicate a severe storm, like a derecho, is on the way.
Answer:
bank of heavy shelf clouds , extreme weather
Explanation:
Derecho is characterised by wind damages swath beyond 240 miles & wind gusts 58 mph
Signs of an approaching derecho are - bank of heavy clouds (arcus clouds) paired with extreme weather events
If the first trophic level in an energy pyramid receives 1,000 units of energy from the Sun, how much energy is available for the third trophic level?
Answer:
10 units
Explanation:
Energy is transferred from organism to organism in an ecosystem when they feed on one another. However, based on the pyramid of energy, only about 10% of energy is transferred from one organism to another because a bulk of energy (about 90%) has been lost to metabolic activities.
Energy moves from producers to consumers, each occupying trophic levels. If the first trophic level in an energy pyramid receives 1,000 units of energy from the sun,
- 10% of 1000units will be available for the second trophic level i.e. 10/100 × 1000 = 100units
- 10% of 100units will be available for the third trophic level i.e. 10/100 × 100 = 10units
Hence, 10units of energy is available for the third trophic level.
Scientific theory is based on
A) Data collected over time
B) A general claim by scientist
C) The best guesses of a scientist
D) an idea that can be proven true
Answer:
I think it's D
Explanation:
Cause usually a scientist creates a hypothesis or theory so they can prove that it's true.
¯\_(ツ)_/¯
Answer:
A) Data collected over time
Allergies, asthma, high blood pressure, and heart
disease are examples of conditions caused by
Answer:
pollen sorry
Explanation:
i only did this for the points but the real answer is:
Children with allergies, asthma may be at risk of heart problems, with an increased risk of developing high blood pressure, high cholesterol, and obesity. In addition, eczema, a condition that causes itchy, inflamed skin, was common to asthma. here you go! Have a great day!
The prolonged increase in heart and breathing rates during the snow skiing trip was probably a result of:______
a. activation of the sympathetic autonomic nervous system by the new experience.
b. activation of the parasympathetic autonomic nervous system by the new experience.
c. hypoxia caused by insufficient blood hemoglobin concentration to supply oxygen for exercise at the low oxygen pressure found at high altitudes.
d. depressed core body temperature (hypothermia) caused by exposure to cold temperatures at high altitudes.
Answer:
The correct answer is - option C.
Explanation:
Skiing generally happens on higher altitudes such as mountains. It is known that there is less oxygen is available at higher altitudes. There is low oxygen pressure at such height.
The prolonged increase in heart and breathing rate is due to less oxygen available for the cells. This condition is known as hypoxia caused by insufficient blood hemoglobin to supply oxygen for physical activities at higher altitudes.
what happens when oceanic crust collides with continental crust at plate boundary
Explanation:
When oceanic crust converges with continental crust, the denser oceanic plate plunges beneath the continental plate. This process, called subduction, occurs at the oceanic trenches. The entire region is known as a subduction zone. Subduction zones have a lot of intense earthquakes and volcanic eruptions.
Which direction does blood flow in arteries?
it flows towards the heart
Choose all that apply.
Select the hormones, secreted by the pituitary, that regulate reproduction in both males and females.
**Select 2 choices**
1)luteinizing hormone
2)progesterone
3)follicle-stimulating hormone
4)estrogen
5)gonadotropin-releasing hormone
6)testosterone
Answer and I will give you brainiliest
Answer:
follicle stimulating hormone (3)
and
luteinizing hormone (1)
hope this helps!!
Electrons can move from one to what to another?
Answer:
Atom
Explanation:
Answer:
So having learned that electrons can move from one energy level to another by transmitting or taking in energy, It is not the electrons that are moving in the classical sense. It is the whole atom which has quantum mechanical solutions with energy levels and orbitals for the electron.
Explanation:
is DNA present in both archaea cells and bacterial cells
Answer:
Archaea and Bacteria generally have a single circular chromosome– a piece of circular, double-stranded DNA located in an area of the cell called the nucleoid. In contrast, many eukaryotes have multiple, linear chromosomes.
Both archaea and bacteria have a single circular chromosome of DNA and lack membrane-bound organelles.
Explanation:
I hope this helps! ^^
☁️☁️☁️☁️☁️☁️
(b) Explain how the addition of a phosphate group to certain amino acids of Brec likely affects the tertiary structure and function of Brec. Explain how
the addition of a small RNA could prevent the activation of kinase D?
Answer:
Protein phosphorylation can activate/deactivate protein function, while small RNAs can be used for repressing translation of mRNAs through the RNA interference (RNAi) pathway
Explanation:
Protein phosphorylation is one of the most important posttranslational modifications (PTMs) that acts to activate, inhibit, or reversibly switch on/off protein function. Protein phosphorylation confers a reversible and versatile process that cells use to transmit signals and respond to environmental stimuli. This PTM is well known to modify the tertiary structure of the protein and thus activate/inhibit protein functions such as, for example, signaling pathways associated with protein interactions. In consequence, protein phosphorylation can be used by a cell to regulate Brec activity. On the other hand, small non-coding RNAs (ncRNAs) such as, for example, microRNAs (miRNAs), small interfering RNAs (siRNAs), and PIWI-interacting RNAs (piRNAs), are regulatory molecules that bind by complementary base pairing to messenger RNAs (mRNAs) in order to repress translation and/or trigger mRNA degradation through the RNA interference (RNAi) pathway. The RNAi pathway is widely used in molecular biology to silence genes of interest (for example, in this case, the gene that encodes for the kinase D protein).
1. Adding the phosphate group to the amino acid chains is known as phosphorylation. This attachment affects the tertiary arrangement and function of Brec.
Amino acids join together to form the protein that needs to be stimulated and deactivated for proper functioning.Protein phosphorylation is very crucial in post-translation modification.For protein function, it acts as an activator, inhibitor, reversibly on and offs the switch.Phosphorylation assures a reversible process to the cell to transmit signals for the cell functioning.Therefore, Brec activity can be controlled by the phosphorylation of proteins.2. Small RNA's are RNA fragments which is around 150 nucleotide in length.
Functionally significant small RNA's such as siRNAs, microRNAs scaRNAs and many other acts as regulatory molecules which target and adheres to the mRNA transcripts.This binding inhibits the translation process or degrades the mRNA by activating the RNA interference (RNAi) pathway.RNAi pathway is used to suppress the activation of the kinase D.To learn more about phosphorylation and small RNA follow the given link below:
https://brainly.com/question/83713
1.Organisms without a distinct nucleus
2 .Structures that display characteristics of living organisms only
within living cells
3. The close association between two organisms where one or both
benefit muclism
4. Disease caused by a virus that leads to a gradual destruction of th
mmune system
5. Process by which bacteria break organic matter into simple
utrients which are then returned to the so
A term used to describe organisms that cause diseases e.g. bacteria
____ is the natural process by which water is continually recycling between the Earth's atmosphere,
OA Carbon cycle
OB nitrogen cycle
OC condensation
OD water cycle
Answer:
Option D
ans : water cycle
Jessica and Taylor are playing in a seesaw. Taylor is suspended in the air and is unable to move her seat down. Explain why Taylor cannot swing back down.
Jessica is standing on her seat causing Taylor to be suspended in the air.
The force pushing down is less than the force pushing up on Taylor's seat.
The weight of Jessica is more than the weight of Taylor.
Jessica and Taylor are equal of weight.
Answer:
The force pushing down is less than the force pushing up on Taylor's seat. Jessica is standing on her seat causing Taylor to be suspended in the air.
Answer:
B)
Explanation:
hope this helps you! :)
plzzz help will give brainliest and 50 pnts
Gravity and friction between the ocean and the wind that blows across its surface influence surface currents is the main force for surface ocean currents
Answer:
d
Explanation:
because is letter D
9. Using genetic code table translate this mRNA sequence. AUG CUU AAG GGU CGU CAU UAG.
Answer:
MET LEU LYS GLY ARG HIS STOP
Explanation:
Just find a genetic code table on the InterWeb and translate. Not too hard to do.
Plz help me I am timed
Answer:
geyser
Explanation:
Which of the following statements about metabolism are true? 1) Catabolism is the process in which complex substances are broken down, yielding a net output of energy. 2) Metabolism is an integrated system in which many of the same reactions participate in degradative (catabolic) and biosynthetic (anabolic) pathways. 3) Anabolism involves the synthesis of polymeric biomolecules and complex lipids from monomers such as fatty acids and nucleotides. 4) All organisms require an external source of energy, such as glucose or sunlight, for metabolic energy.
Answer:
the answer is 1), 2) and 3)
Explanation:
Metabolism can be defined as all the chemical reactions inside a cell that are required to carry out cellular functions (e.g., reproduction, growth, development). The metabolic reactions can be divided into anabolic and catabolic reactions. Anabolic reactions refer to metabolic reactions that require energy in order to construct new molecules from smaller ones (i..e., biosynthesis). Anabolism comprises endergonic metabolic pathways which are fueled by the use of energy (e.g., cellular ATP). On the other hand, catabolic reactions refer to metabolic reactions where larger molecules are separated to form smaller ones. Catabolic reactions are exergonic because they do not require energy (for example, reactions involved in cellular respiration).
32. Sucrose is made of one glucose molecule and one fructose molecule. This means sucrose is a:
a. Monosaccharide
c. Polysaccharide
b. Disaccharide
d. Oligosaccharide
Answer:
The answer is Disaccharide
Explanation:
Sucrose is common sugar. It is a disaccharide, a molecule composed of two monosaccharides: glucose and fructose. Sucrose is produced naturally in plants, from which table sugar is refined. It has the molecular formula C12H22O11.
Answer:
b. Disaccharide
Explanation:
Definition of a is disaccharide "any of a class of sugars whose molecules contain two monosaccharide residues".
Hope this helps! :)
Plz help I’m begging plz
Answer: 4
Explanation:
i just know i took cem before
Which statement best describes the relationship between cells, DNA, and proteins? * 1 point A) Cells contain DNA that controls the production of proteins. B) DNA is composed of proteins that carry coded information for how cells function. C) Proteins are used to produce cells that link amino acids together into DNA. D) Cells are linked together by proteins to make different kinds of DNA molecules
Answer:
It's going to be A
Explanation:
DNA has instruction in it on how to do protein synthesis.
