Answer: c) central vein.
Explanation:
The liver is an organ that is present both in humans and in vertebrate animals. It secretes the bile, essential for the digestion of fats, and it also has many other functions, including the synthesis of plasma proteins, storage of vitamins and glycogen and detoxifying function. It is responsible for removing various substances from the blood that may be harmful to the body, including alcohol, making them harmless.
The liver is divided by the sickle cell ligament into two main lobes, right and left. There are two other smaller lobes, the square lobe and the caudate lobe.
The hepatic triads are triangular areas located at the angles of the hepatic lobules, made up of a lax conjunctive stroma. They contain a branch of the hepatic artery (that irrigates the liver), a hepatic portail vein (a thick blood vessel that carries blood from the gastrointestinal tract and spleen to the liver so that nutrients are metabolized) and a bile duct (transports bile into the small intestine). Therefore, it does not contain a central vein.
The zone of the ocean where no light can penetrate is known as the
zone.
A. twilight
B. dysphotic
C. euphotic
D. aphotic
Answer:
The answer is, D. Aphotic.
Fill in the blank.
1. The buildup of sediment where a river empties into a slow-moving or non-moving body of water is known as a/an _______.
2. A type of soil made almost entirely of windblown sediment is called _______.
3. The _______ in soil comes from decaying plants and animals and their waste products.
4. _______, which is made up of tiny particles and drains water very poorly, is one of the main components of soil.
5. A type of soil called peat is most likely to form in a/an _______.
6. Water helps in the development of soil by carrying _______ and nutrients from upper layers to lower layers.
7. The _______ of nutrients from soil is common in wet environments, like rain forests.
8. Quartz-rich parent material leads to the development of _______ soils.
9. The layers of soil composed mainly of organic matter are known as the ______ and _______ horizon.
10. A layer of soil in which clay, iron, and other elements from the overlying soil accumulates is known as the _______ horizon, or subsoil.
Answer:
1. River Delta
2. Loess
3. organic matter
4. clay
5. Coastal environment in Tropical setting.
6. minerals
7. richness
8. sandy
9. o and a
10. b
Explanation:
1. River Delta, 2. Loess and 3. organic matter, 4. clay and 5. Coastal environment in Tropical setting, 6. minerals and 7. richness and 8. sandy.
What is River sediment?The physical habitat of river ecosystems is controlled by sediment. The shape of river channels and the habitat of rivers are affected by changes in the quantity and spatial distribution of various sediment types.
Water clarity is based on the quantity and kind of silt suspended in the water column.
It is essential to comprehend and manage sediment and sediment-related habitat in rivers in order to understand sediment transport and the circumstances under which sediment is deposited or eroded from the diverse ecosystems in a river.
Therefore, 1. River Delta, 2. Loess and 3. organic matter, 4. clay and 5. Coastal environment in Tropical setting, 6. minerals and 7. richness and 8. sandy.
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The Vmax of the isoform of glycogen phosphorylase expressed in muscles is significantly larger than the isoform of the enzyme expressed in the liver enzyme. Explain the functional significance of this observation.
Answer and Explanation: In enzyme kinetics, one constant describing enzyme activity is Maximal Velocity (Vmax). It indicates how fast an enzyme can catalyze the reaction. It is dependent on substrate concentration.
As the muscle is an organ which needs a great amount of energy, the enzyme glycogen phosphorilase is very active on the organ, compared to the liver, where glicose is stored. So, the Vmax of glycogen phosphorylase expressed in muscle is faster than when expressed in the liver, means the enzyme in muscle has a bigger concentration of substrate and therefore will reach Vmax faster, i.e. will be significantly larger.
Women have a tendency to retain water during part of the menstrual cycle because estrogen mimics the action of what
Answer:
This question lacks options, options are:
A) ADH
B) aldosterone
C) atrial natriuretic hormone
D) oxytocin
E) prolactin
The correct answer is B.
Women have a tendency to retain water during part of the menstrual cycle because estrogen mimics the action of aldosterone.
Explanation:
The female sex hormones produced by the ovary (estrogens and progesterone) are substances that, through the blood, will carry messages to all the organs of the female genital system (uterus, tubes and ovaries) to achieve their correct function. Aldosterone concentration normally increases at the time of ovulation and remains elevated during the luteal phase of the menstrual cycle. Women present during the premenstrual phase, compared to the luteal and follicular phases, an increase in body weight, due to an increase in fluid retention, this because the menstrual cycle modulates the renin-angiotensin-aldosterone system. High levels of estrogen and progesterone in the mid-luteal phase are associated with a greater increase in adrenal and renal hormones and retention of more volume.
The light dependent stage of photosynthesis uses chemical bond energy to make glucose and other carbohydrates. Select one: True False
Which of the following is NOT a mechanism used to temporally regulate the activity of maturation-promoting factor (MPF)?
A. the presence of mitotic cyclin
B. specific dephosphorylation
C. glycosylation
D. specific phosphorylation
Answer:
C. glycosylation
Explanation:
The maturation-promoting factor (MPF) is a cell cycle checkpoint that stimulates the passage from G2 (prophase) to M phase (metaphase). MPF also determines that DNA replication during the S (synthesis) phase did not produce any mutations. MPF is inactivated by kinase phosphorylation and activated by specific phosphatases capable of dephosphorylating this protein. On the other hand, glycosylation is a posttranslational modification where a carbohydrate (i.e., a glycan) is added to a functional group of another molecule. Many proteins undergo glycosylation, thereby playing a critical role in regulating protein function.
how can we use the scientific method to make observations, pose questions, develop hypotheses, design and conduct investigations, and analyze data to draw conclusions?
Answer:
Scientific method is scientific process that is used to find the answers about the questions or observation of a natural phenomenon for experimentation. It involves several steps and processes-
Make an observation - observing the phenomenon or problems,
Ask a question - form a question,
Form a hypothesis - making a possible explanation,
Make a experiment based on the hypothesis - design the investigation to test explanation,
Test the prediction
collecting investigation data,
Analyze the data and
Iterate - find the result or conclusion and required to repeat it with other possible explanation.
Which of the following separates the DNA strands during replication?
A) Helicase
B) DNA polymerase III
C) Ligase
D) DNA polymerase I
E) Primase
Answer:
A. Helicase
Explanation:
Two replication forks are formed by the opening of the double-stranded DNA at the origin, and helicase separates the DNA strands, which are coated by single-stranded binding proteins to keep the strands separated. DNA replication occurs in both directions
Mrs ogrady wants to know if doing labs with her
Answer:
O'Grady wants to know if doing labs with her science class really helps them learn the material better. She decides to test this out in her two 6th grade science classes. In both classes she gives the same amount and type of notes and homework, but in one class she does labs and the other class she doesn't.
What is an example of how organic molecules play a role in the structure and function of different cell types
Answer:
For example, the sugars can be linked to form polysaccharides such as starch and glycogen, the amino acids can be linked to form proteins, the nucleotides can be linked to form the DNA (deoxyribonucleic acid) and RNA (ribonucleic acid) of chromosomes, and the fatty acids can be linked to form the lipids of all cell
Explanation:
Organic molecules play a significant role in the structure and function of different cell types. For example, nucleic acid looks after the construction of genetic material among living organisms.
What are organic molecules?Organic molecules may be defined as all sorts of those molecules that primarily consist of carbon and hydrogen. It also includes other elements like oxygen, nitrogen, phosphorus, etc. Organic molecules must possess carbon atoms covalently bonded to hydrogen atoms (C-H bonds).
Among organic molecules, carbohydrates are the energy-deriving components that all cells require in order to perform their own cellular and metabolic activity.
Proteins are required for the structural arrangement and specific function of each cell type. It also functions as a hormone or enzyme. Lipids also store the energy needed for the body.
Therefore, organic molecules play a significant role in the structure and function of different cell types.
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ok the role of the cell membrane in regulating how nutrients are gained and waste products lost.
Answer:
The cell membranes controls what goes in and out by having protein channels that perform their role accordingly sometimes like funnels and like a pump in different cases.
When a channel open in the plasma membrane it allows molecule to pass through, in this case there is no requirement for energy so it is a passive transport.
Gases and food particles broke down in water must be assimilated and waste or harmful substance and molecules must be remove. For most cells, this type of selective transport of all materials all through the cell must happen through the plasma membrane.
Which of the following pathways best represents the expected follow of blood from the human heart to an organ?
A. Blood purced from the heart first enters arteries that the narrow to form arterioles that deliver blood to capillaries of the organ .
B. Blood pumped from the heart first enters veins that the narrow to form venules that deliver blood to arteries of the organ.
C. Blood pumped from the heart first enters arterioles that the merge to form artenes that liver blood to the organ.
D. Blood pumped from the heart first enters artenes that the narrow to form veins that deliver blood to the organ.
Answer:
A.
Explanation:
Human heart is an organ that is responsible for the circulation of blood throughout the body and works in a systematic pathway.
The human heart recieves blood from two large veins, the superior and inferior venae cavae and enters through different chambers in the heart that is first at right atrium to right ventricle, from right ventricle to left atrium, then from left atrium pumped into the left ventricle.
The blood first enters into arteries and than move to narrorwer to arterioles that deliver blood to capillaries of the organ where the oxygen and nutrients from blood are supplied to body cells for metabolism and the deoxygenated blood enters into veins.
Hence, the correct option is "A".
How is carbon dioxide released into the atmosphere during the carbon cycle
Answer:
Each time you exhale, you are releasing carbon dioxide gas (CO2) into the atmosphere. Animals and plants need to get rid of carbon dioxide gas through a process called respiration. Carbon moves from fossil fuels to the atmosphere when fuels are burned. The carbon is dissolved into the water.
Explanation:
The intervening age between childhood and puberty
Answer:
adolescence is the age b/w childhood and puberty. it includes some big changes to the body of a person.
Explanation:
It holds water and other nutrients for the cell. What characteristic of a living thing is this?
Answer:
cytoplasm consists of up to 90% water and Its main function is to hold together the organelles which make up the cytoplasm.
what effect does insulin have on the body
Answer:
Insulin is a hormone made by the pancreas that allows your body to use sugar (glucose) from carbohydrates in the food that you eat for energy or to store glucose for future use. Insulin helps keeps your blood sugar level from getting too high (hyperglycemia) or too low (hypoglycemia).
Answer:
The liver converts any excess glucose in the body that reaches it after a meal to glycogen. This process is stimulated by the hormone insulin which is secreted by the pancreas. Thank you for the question
You plate colonies of E. coli with the lac operon genotype of I-P+O+Z+CAP+ on 1) a medium containing only glucose, and 2) a medium containing only lactose. You isolate mRNA from bacteria from each medium and do a Northern blot with a probe for β-galactosidase. Draw the results.
A complete collection of single-use and high-throughput electrocompetent and chemically competent E. coli
Choosing the ideal competent cells for your cloning applications and workflows is a critical component of success. Aspects to consider when selecting your competent E. coli strain include:
Transfection method – chemical versus electroporation
Transformation efficiency – bacterial strain and genotype
Downstream application – protein expression, library production, general cloning
In the seven trumpets of judgment a rain of fire burns the vegetation.
a) true
b) false
Answer:
The correct answer is option a) "true".
Explanation:
According to christianity, the seven seals and seven trumpets of judgment are a series of catastrophic events that will take place at the end of the world. One of the seven trumpets of judgment includes the end of vegetation when a rain of fire burns it. There are theories that explain that the rain of fire refers to a giant firestorm caused by the falling of a series of small meteorites.
A species has homologous chromosomes what does this say about the species
Answer:DIPLOID SPECIE.
Explanation:Having homologous chromosomes indicates that the organism is a DIPLOID SPECIE.
Answer:
A species that has homologous chromosomes is known as a diploid species. Homologous chromosomes are chromosomes that come in identical pairs.Hope this helps :)Which of these characteristics is shared by all living things
Answer:
Cellular organization.
Reproduction.
Metabolism.
Homeostasis.
Heredity.
Response to stimuli.
Growth and development.
Adaptation through evolution.
Explanation:
Which type of macromolecule is a Product of photosynthesis 
Answer:
Glucose
Explanation:
Glucose is the macromolecule that is a product of photosynthesis.
In photosynthesis, the macromolecule glucose is made from solar energy, water, and carbon dioxide.
Answer: glucose
Explanation:
Which of the following is not an observed chimpanzee behavior? A) kissing B) holding hands C) tool making D) speaking
Speaking is not an observed chimpanzee behavior is the right answer.
Which of the following is not an observed chimpanzee behavior?
Speaking is not an observed chimpanzee behavior because they are not able to speak like humans but they can perform other activities such as kissing, holding hands and tool making. The chimpanzee's are the intelligent organisms.
So we can conclude that Speaking is not an observed chimpanzee behavior is the right answer.
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Which of the following contains thousands of nuclei in a single "supercell?"
a.Plasmodial slime mold
b."The plasmodial slime mold Physarum polycephalum (featured in the end-of-chapter
Answer:
The correct answer is option a. "Plasmodial slime mold".
Explanation:
Plasmodial slime molds, are comprised of a single "supercell" with thousands or millions of nuclei within it. These organisms are formed by the fusion of multiple flagellated cells. The formation of these single celled organisms depend on the presence of enough food source. Typically, plasmodial slime molds have a diameter of 3 to 4 centimeters, but they can growth up to 30 centimeters.
The occurrence of discarded fishing gear still catching or entangling fish is known as
A. lost fishing
B. bycatch
C. overfishing
D. ghost fishing
Answer:
D. ghost fishing
Explanation:
The nets are also called "ghost nets" being left behind or lost in the ocean by fishermen.
Also, never leave nets in the water. Our Earth needs healing.
Diffusion is the movement of molecules across the cell membrane from __________ to __________ concentration. A low, high B high, low C high, equal D equal, low
Answer:
B; high, low
Explanation:
Diffusion is the movement of molecules across the cell membrane from higher to lower concentration.
i hope this helps:)
Most persons who have prediabetes are aware of the condition and maintain normal blood glucose levels. true or false
PLS HELP!!! What best describes the relationship between
P. caudatum and P. aurelia in Graph B?
Predation
Mutualism
Interspecific competition
Intraspecific competition
Answer:
Interspecific competition
Explanation:
Interspecific competition occurs when two different species occupy the same environment as they coexist and depend on the same limited resources for survival. As a result of these limited resources, there's competition between the different species with each species having their different levels of fitness. Their level of fitness determines how well they will complete with other species. This will also determine if they will go extinct or thrive in such environment where there's interspecific competition.
The graph given shows the growth of the relative population size of two different species grown together.
It shows that P. aurelia, with time, outcompetes P. coudatum.
This graph clearly suggest that interspecific competition has occurred. Both species are competing for the same limited resources.
P. aurelia has a greater fitness which enables it to outcompete the other species sharing the same environment with it.
Interspecific competition beats describes the relationship between the two species in graph B.
Which of the following describes the order of events in which bone fractures heal?
A. A hematoma form -- a fibrocartilage Callus forms -- a bony calus forms -- bone remodeling occurs.
B. A bony callus forms a -- hematoma form -- a fibrocartilage calls forms -- bone remodeling occurs.
C. A hematoma forms a bony callus forms -- afbrocartilage calls forms -- bone remodeling occurs.
D. A fibrocartilage Callus forms -- a hematoma forms -- bone remodeling occurs -- a bony calls forms.
The order of events in which bone fractures heal is as follow A hematoma form -- a fibrocartilage Callus forms -- a bony callus forms -- bone remodeling occurs.
What is bone healing process?The bone healing process has 03 stages:
Inflammation, Bone formation and Bone remodeling.Inflammation starts instantly after fractured and lasts for few days.
Thus, option "A" is correct.
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is Giardia viruses DNA or RNA viruses?
) Describe three benefits of CBT.
Answer:
1. CBT can be completed in a relatively short period of time compared with other types of talking therapies.
2. Research has shown CBT can be as effective as medicine in treating many types of depression and other mental health disorders.
3. Skills you learn in CBT are useful, practical and helpful strategies that can be incorporated into everyday life to help you cope better with future stresses and difficulties.
Explanation:
Cognitive behavioural therapy (CBT) is a talking therapy that can help you manage your problems by changing the way you think and behave.
CBT cannot remove your problems, but can help you manage them in a more positive way. It encourages you to examine how your actions can affect how you think and feel.
Talking and changing your behaviour can change how you think (cognitive) and what you do (behaviour). This can make you feel better about life.
CBT can help you manage problems, such as anxiety and depression and make them less likely to have a negative impact on your life.
There is always a risk that bad feelings you associate with your problem will return, but with your CBT skills it should be easier for you to control them.
Answer:CBT can help you manage problems, such as anxiety and depression and make them less likely to have a negative impact on your life. There is always a risk that bad feelings you associate with your problem will return, but with your CBT skills it should be easier for you to control them