Answer:
B. They can show which groups of organisms are more advanced than other groups.
They can show which groups of organisms are more advanced than other group is not true about phylogenetic tree.
It is used to identify the phylogenetic relationship between the organisms.It show which group of organism diverged longest ago.What is phylogenetic tree?It is a diagram that depicts the lines of evolutionary descent of different species, organisms, or genes from common ancestors.It is based upon similarities and differences in their physical or genetic characteristics.To know more about phylogenetic tree here
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Helpp me plz is it A,b,c ,d make sure you pick the rite one
Answer:
C. a System
Explanation:
for anyone out there
Which behavior shows a way that animals defend their territory
Answer: Territorial behaviour, in zoology, the methods by which an animal, or group of animals, protects its territory from incursions by others of its species. Territorial boundaries may be marked by sounds such as bird song, or scents such as pheromones secreted by the skin glands of many mammals.
Explanation:
Answer:
Wolves work together to chase or kill any wolves that are not in
their group
Explanation:
Many animals rely on smells to mark their territories, spraying urine, leaving droppings or, rubbing scent glands around the territories' borders. Approaching animals will be warned off the territory without ever encountering the territory's defender.
how does a liver cell respond to insulin
Answer:
Insulin stimulates the liver to store glucose in the form of glycogen. A large fraction of glucose absorbed from the small intestine is immediately taken up by hepatocytes, which convert it into the storage polymer glycogen. Insulin has several effects in liver which stimulate glycogen synthesis.
Explanation:
Insulin stimulates the liver to store glucose in the form of glycogen. A large fraction of glucose absorbed from the small intestine is immediately taken up by hepatocytes, which convert it into the storage polymer glycogen. Insulin has several effects in liver which stimulate glycogen synthesis.
examine this image in the image there is a red mum parent and white mum parent What is the most likely genotypes of the parents if this is incomplete dominance A) RR;RW B) RR;WW C)Rr ;Ww D) RW;RW
Answer:
answer is rr;ww
Explanation:
A group of ducks in the same area is a ? Environment, Community, population, organism 
Answer:
community
Explanation:
Nondisjunction occurs when chromosomes do not properly separate during cell division, which can lead to?.(please no links just written answers)
Group of answer choices
Duplications
Translocations
Aneuploidy
All the above
Answer:
Option C, Aneuploidy
Explanation:
Aneuploidy is defined as the condition when offspring/daughter cell has abnormal number of chromosomes.
In the process of nondisjunction, the pair of homologous chromosomes do not separate and hence the sister chromatids fails to separate.
Hence, option C is correct
In animals, glucose is absorbed from the gut into intestinal cells against its concentration of gradient. This one-way process requires energy to work. Which of the following best describes how glucose is absorbed into intestinal cells?
A. By osmosis
B. By diffusion
C. By a buffer
D. By active transport
Answer: Glucose is absorbed through the intestine by a transepithelial transport system initiated at the apical membrane by the cotransporter
Explanation:
if im wrong ill give you your points
Osmosis best describes how glucose is absorbed into intestinal cells.
What do you mean by osmosis?
Osmosis is the movement of water molecules from a solution with a high concentration of water molecules to a solution with a lower concentration of water molecules, through a cell's partially permeable membrane.
Osmosis is when water moves from an area of LOW solute concentration (low osmolarity) to an area of HIGH solute concentration (high osmolarity) through a semipermeable membrane. Osmosis is one of the most important ways that plants and animals achieve homeostasis.
The absorption of water from the soil is due to osmosis. The plant roots have a higher concentration than the soil. Therefore, the water flows into the roots. The guard cells of the plants are also affected by osmosis.
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The animals in the food web release______ into the environment, which plants use for_____.
Answer:
1. carbondioxide
2. photosynthesis
what does the tilde symbol mean in biology
Answer:
means "approximately", "about", or "around", such as "~30 minutes before", meaning "approximately 30 minutes before".
When can a mutation lead to an adaptation?
Answer:
If the mutation has a deleterious affect on the phenotype of the offspring, the mutation is referred to as a genetic disorder. Alternately, if the mutation has a positive affect on the fitness of the offspring, it is called an adaptation.
Explanation:
I NEED HELP PLEASE! I WILL NAME U THE BRAINLIEST!
The sodium-potassium pump:
A. uses energy to move sodium ions out of the cell and potassium ions into the cell.
B. uses energy to move potassium ions out of the cell and sodium ions into the cell.
C. moves sodium ions out of the cell and potassium ions into the cell without using energy.
D. moves potassium ions out of the cell and sodium ions into the cell without using energy.
PLEASE EXPLAIN!
Explanation:
What are examples of convections currents? What are examples of convection currents? A: the movement of war air into cooler air and cooler air into warmer air B: the movement of cool water into warmer water and warmer water into cool water. C: the displacement of air/water molecules by other air/water molecules due to varying temperatures. D: all of the above
Answer:
C: the displacement of air/water molecules by other air/water molecules due to varying temperatures
Which of the following symptoms is absent in “the depletion syndrome of the elderly”?
feeling worthless
losing interest in things
physical symptoms
self-blame
Answer:
self-blame i think if i am wrong pls tell me
Mitosis is the division of the _____ and begins with a stage called ____ . As the nuclear envelope finishes dissolving, the cells enter ____, where microtubules from the spindle attach to the duplicated X-shaped chromosomes.
When all chromosomes are fully attached to the spindle, they align at the midplate between poles. This marks the middle of mitosis, which is ____ . As sister chromatids separate, cells enter ____ and they finish separating and a nucleus reforms around each set of new chromosomes in ____ . During this phase, cytokinesis also becomes visible as the cells themselves begin to divide.
Answer:
cell; prophase. prometaphasemetaphase. anaphase, telophase.Explanation:
Mitosis is the division of the cell and begins with a stage called prophase. As the nuclear envelope finishes dissolving, the cells enter prometaphase, where microtubules from the spindle attach to the duplicated X-shaped chromosomes.
When all chromosomes are fully attached to the spindle, they align at the midplate between poles. This marks the middle of mitosis, which is metaphase. As sister chromatids separate, cells enter anaphase and they finish separating, and a nucleus reforms around each set of new chromosomes in telophase. During this phase, cytokinesis also becomes visible as the cells themselves begin to divide.
if a light bulb is off; how can you tell that It has been used recently? ANSWER ASAP
If you have a second fixture around, you can use the same test of putting a tube in a working socket and see if it lights. It is not uncommon in fluorescent fixtures to have the ballast burn out. You may detect a burnt smell or see the bulbs flickering.
What pigment replaces chlorophyll in
the fall season?
A. carotene
B. betatene
C. hypotene
Answer:
A. Carotene
Explanation:
It is an orange/red pigment which is seen during the fall.
The moray eel and grouper fish hunt together. When both hunt together, prey barely stands a chance: hide in the reef, the eel eats you; dash for open water, the grouper grabs you. Which symbiotic relationship is described above?
A. Coevolution
b. Mutualism
c. Parasitism
d. Commensalism
Answer:
We can immediately cross-out C
We can also cross-out A.
Now we have B and D. Commensalism and Mutualism. Now, commensalism is an association between two organisms in which one benefits and the other derives neither benefit nor harm.
Mutualism is the doctrine that mutual dependence is necessary to social well-being.
I would say D: Commensalism. Both fish can survive without each other.
Complete the following sentences that describe glycolysis and gluconeogenesis in both fed and resting states. After a meal the body is in a fed state, which stimulates the pancreas to secrete the hormone insulin . The plasma membrane receptor on the liver binds to this hormone and activates a signaling pathway that results in the dephosphorylation of the bifunctional enzyme. This event causes a(n) increase in the concentration level of the fructose-2,6-bisphosphate (F-2,6-BP). This new concentration of F-2,6-BP activates the glycolysis pathway. In a fasting state, the pancreas secretes the hormone glucagon . The plasma membrane receptor on the liver binds to this hormone and activates a signaling pathway that results in the phosphorylation of the bifunctional enzyme. This event causes a(n) decrease in the concentration level of F-2,6-BP. This new concentration level of F-2,6-BP. activates the gluconeogenesis pathway, by allowing inhibition of the reciprocal reaction.
Answer:
Fed state - Insulin; dephosphorylation; increase; glycolysis
Fasting state - Glucagon; phosphorylation; decrease; gluconeogenesis
Explanation:
Fructose-2,6-bisphosphate is an allosteric regulator of the enzymes phosphofructokinase-1 and fructose1,6-bisphosphatase-1 which are involved in glycolysis and gluconeogenesis respectively.
After a meal the body is in a fed state, which stimulates the pancreas to secrete the hormone insulin . The plasma membrane receptor on the liver binds to this hormone and activates a signaling pathway that results in the dephosphorylation of the bifunctional enzyme, phosphofructokinase-2/fructose-2,6-bisphosphatase. This event causes a(n) increase in the concentration level of the fructose-2,6-bisphosphate (F-2,6-BP). This new concentration of F-2,6-BP activates the glycolysis pathway.
In a fasting state, the pancreas secretes the hormone glucagon . The plasma membrane receptor on the liver binds to this hormone and activates a signaling pathway that results in the phosphorylation of the bifunctional enzyme phosphofructokinase-2/fructose-2,6-bisphosphatase. This event causes a(n) decrease in the concentration level of F-2,6-BP. This new concentration level of F-2,6-BP. activates the gluconeogenesis pathway, by allowing inhibition of the reciprocal reaction.
Consider two kinesin motor proteins at the mitotic spindle midzone: kinesin A is a tetrameric motor that walks toward the plus end of both microtubules to which it is attached via its motor domains; kinesin B, on the other hand, walks toward the minus end of one microtubule while it is attached to another microtubule via its tail domain.How do these motors affect the length of the spindle?
A. They both work to shorten the spindle.
B. Kinesin-5 works to shorten the spindle whereas kinesin-14 works to lengthen it.
C. Kinesin-5 works to lengthen the spindle whereas kinesin-14 works to shorten it.
D. They both work to lengthen the spindle.
Answer:
C. Kinesin-5 (kinesin A) works to lengthen the spindle whereas kinesin-14 (kinesin B) works to shorten it.
Explanation:
Kinesins are microtubule-based motors localized in the mitotic spindle in order to ensure the correct segregation of the chromosomes during cellular division. These proteins are classified regarding their sequences at the core motor domains which determine their motility. Kinesins can move along microtubules in opposite directions, walking toward the plus end (i.e., the end that grows more rapidly) or moving toward the minus end. Recently, it has been shown that opposite forces between kinesin-5 (plus-end-directed) and kinesin-14 (minus-end-directed) microtubule-based motors regulate the length of the spindle during cellular division. Kinesin-14 is a minus-end-directed motor protein that walks along microtubules from plus- to minus-end, while kinesin-5 is a plus-end-directed motor protein that walks along microtubules from minus- to plus-end, and thereby they work to shorten and lengthen the mitotic spindle, respectively.
Which type of macromolecules helps a cell brake down food? Lipids proteins carbonhydrates or nucliec acids
Answer:
Proteins
Explanation:
There are four major biomolecules found in living system namely; proteins, carbohydrates, lipids and nucleic acids. These biomolecules serve different and unique functions in the body. PROTEIN is a biomolecule that helps in the break down of food substances in the body as stated in this question.
Specifically, these function of breaking down food substances is carried out by ENZYMES, which are biological catalysts that are proteinous in nature i.e. structurally made of proteins. For example, amylase enzyme breaks down starch, lipases break down lipids. Hence, since enzymes that perform this disintegration function are PROTEINOUS, then PROTEINS are the biomolecules that perform the role.
When new dirt is created from organic and inorganic materials, it is called
O A) erosion
B) weather
C) composting
OD) conservation
Answer:
the answer is C) composition
If a physician orders that a patient be given 4 grams of a medication that it is only available in 1000
milligram tablets, how many tablets should the natient hominen?
Answer:
4 tablets
Explanation:
Based on the information in this question, a doctor/physician orders that a patient be given 4 grams of a medication. However, the medication is only available in 1000 milligram (mg) tablets.
Since 1000mg = 1g
This means that one of the available tablet is 1g.
Hence, in order to give exactly 4grams of a 1g tablet, 4/1 = 4 tablets must be given to the patient.
Which states of matter is water in during the water cycle?
Answer:
Explanation:
The water cycle is the path that all water follows as it moves around our planet.
If one abiotic factor changed drastically, what effect would that have on the ecosystem?
if a plant is adapted to low temperatures and the specific are where it lives, has a change in its temperature this plant will die and this area will no longer support life, which is due to the change in abiotic factor
Which of the following is a critical factor driving evolution?
Environmental conditions
Health in comparison to similar organisms
Ability to acquire food
Strength in comparison to similar organisms
All of these are equally important
all of these are equally important, what if there is an option for natural selection, natural selection would be the most important but for this it's all these are equally important.
The critical factor driving evolution is strength in comparison to similar organisms.
According to Charles Darwin, Organisms that are better able to survive in their environment live long enough to reproduce and pass on these favorable traits to their offspring leading to the perpetuation of these organisms and gradual demise of other individuals of the same species who lack these favorable traits.
This is the origin of the cliché, "survival of the fittest". Hence organisms that lack certain strengths possessed by other organisms are gradually replaced by other individuals having such strengths.
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The reduction of a molecule is classified as what type of reaction?
explosion.......................... >:(
Help stepbro im stuck in the washer
Answer:
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Does anyone have a flower diagram with all the labels? It would really help
Answer:
here here it helps
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Explain the differences between Earth’s crust, mantle, outer core, and inner core.
Answer:
Earth's crust is the coldest Earth layer. Rock makes up the mantle and crust. The Outer core is liquid and the inner core is solid.
Explanation:
Outer and Inner core are both are made mostly of iron, with a little nickel and some other chemical elements.
A cell membrane is composed of a lipid bilayer in which many kinds of proteins are embedded. These proteins use energy to actively transport certain particles into and out of the cell.
Which example BEST illustrates the condition in which molecules move across the cell membrane through active transport?
A. When molecules need to move from an area of lower concentration to an area of higher concentration.
B. When the cell wall is damaged or genetically modified and molecules cannot enter or leave the cell.
C. When molecules need to move from an area of higher concentration to an area of lower concentration.
D. When the amount of water is higher inside of the cell as compared to the area surrounding the cell.
Answer:
when molecules need to move from an area of lower concentration to an area of higher concentration