What percentage of DNA comes from
each parent during sexual reproduction?
Answer:
50 %
Explanation:
So, each sperm contains 50% of the father's genes and each egg contains 50% of the mother's genes. This makes gametes different from other cells in the body
Answer:
50 from each parent is the correct answer
Help me, it's due today
natural chemicals in the brain that cause feelings of relaxation and happiness are called
Which allele combination represents a female who is a carrier for an X-linked recessive disorder?
XRXr
XrXr
XRY
XrY
The allele combination XRXr represents a female who is a carrier for an X-linked recessive disorder.
X-linked recessive inheritanceFemales usually inherit two chromosomes X, while men inherit only one chromosome X (and one chromosome Y).
The inheritance of the chromosome X in females resembles mendelian inheritance because females have two X chromosomes.In this case, females having the genotype XRXr are carriers because lowercase letters denote the presence of the recessive allele.In conclusion, the allele combination XRXr represents a female who is a carrier for an X-linked recessive disorder.
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What happens to waste before it is passed out of the body???
Answer:
It goes through a series of "Events" I'll talk you through them lol.
Explanation:
See, when you eat something it goes down the esophagus and into the stomach, then to your small and large intestine. While it slowly travels through your intestines, your body is slowly taking the nutrients from that piece of food, which makes the food turn into a different color, since all the nutrients is taken out of the food, then the body no longer needs that food. Then it disposes from the body!
Hope this helped!
:3
simply square root of 18
Answer:
4.2
Explanation:
Answer:
3√2 or 4.2
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Explain why most local water budgets are not balanced
Answer:
When precipitation exceeds evapotranspiration and runoff in an area, the result is moist soil and possible flooding. Vegetation reduces runoff in an area but increases evapotranspiration. ... The volume of water moved by a stream in a given time period.
: ) x
What term describes the biological burden on the body caused by emotional upset?
I believe its allostatic load which is the wear and tear on the body that accumulates when we are under a lot of stress
Upon close examination of the skeleton of an adult python, a pelvic girdle and leg bones can be
observed. These features are an example of
a. artificial selection
b. homologous structures
C. vestigial structures
d. comparative embryology
Answer:
vestigial structure that is C
A group of scientists studied the effects of exercise on insulin sensitivity in elderly women. The scientists measured the amount of insulin secreted in the saliva when given glucose. Measurements were taken at 0, 20, 40, and 70 minutes after the glucose was administered. The graph shows the data collected before and after a four-month exercise program was put into place
Which statement BEST analyzes the data shown in the graph?
A. Elderly women secrete more insulin the more they exercise.
B. Exercise decreases insulin sensitivity in elderly women.
C. Insulin sensitivity is at its highest after 50 minutes.
D. Insulin sensitivity increases as exercise decreases.
Answer:
B. Exercise decreases insulin sensitivity in elderly women.
Explanation:
I got the answer correct in a test.
Exercise decreases insulin sensitivity in elderly women.
What is Insulin?
Your muscle cells are better equipped to use any insulin that is present to take up glucose during and after exercise because their insulin sensitivity has risen.
Whether or not insulin is present, when your muscles contract during activity, your cells can absorb glucose and utilise it as fuel.
Depending on how long you exercise for, among other things, will determine how your physical activity affects your blood sugar levels.
Learn how your blood sugar changes as a result of activity. You can better understand the advantages of exercise by monitoring your blood sugar levels more frequently before and after exercise.
Therefore, Exercise decreases insulin sensitivity in elderly women.
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What happens during synapsis?
A. gene recombination
B. DNA replicates
C. the cell divides
D. centrioles move to the poles
Answer:
C
Explanation:
Which of the structures in the diagram is labeled by number 8? *
O perimysium
O muscle fiber
Otendon
O blood vessel
O endomysium
It's tendon.
Tendon is a connecting tissue that connects bones and muscles.
Help help ASAP help no link
1. Match each term with the correct definition. a. External bleeding b. Direct pressure c. Pressure bandage d. Internal bleeding e. Arteries f. Veins g. Tourniquet ____ Using your gloved hand to apply pressure on the wound to control bleeding ____ Bleeding that can be seen coming from a wound ____ The escape of blood from an artery, vein or capillary inside the body ____ A tight band placed around an arm or leg to constrict blood vessels in order to stop blood flow to a wound ____ Blood vessels that carry blood from all parts of the body to the heart ____ Vessels that transport blood to the capillaries for distribution to the cells ____ A bandage applied snugly to maintain pressure on the wound to control bleeding
Answer:
Using your gloved hand to apply pressure on the wound to control bleeding. b. Direct pressureBleeding that can be seen coming from a wound. a. External bleeding The escape of blood from an artery, vein, or capillary inside the body. d. Internal bleeding A tight band placed around an arm or leg to constrict blood vessels in order to stop blood flow to a wound. g. TourniquetBlood vessels that carry blood from all parts of the body to the heart. f. Veins Vessels that transport blood to the capillaries for distribution to the cells. e. ArteriesA bandage applied snugly to maintain pressure on the wound to control bleeding. c. Pressure bandageExplanation:
Direct pressure is a technique used to stop the bleeding on the wound. The person should place both hands over the wound and press firmly till doctors arrive. With this first aid technique, we prevent excessive blood loss, which can cause worse problems in the future.
There are two types of bleeding, external and internal. In the first one, the skin opens, and blood comes out to the exterior. In the second one, the skin is not open, so the blood does not come out to the exterior, but blood goes to tissues around the broken vessel due to an internal injury.
A tourniquet is a first-aid technique use to stop blood flow and prevent that the injured person bleeds out till death. A band, a piece of shirt, or a belt should go around the limb and tie it hard to stop the blood flow and allow the patient to arrive at the hospital. It is a technique usually use when there is a wound that affects the main vessels.
There are different types of vessels. They change in size and structure. Veins are the vessels that carry blood back to the heart, where it will go to the pulmonary circuit to be oxygenated. Arteries will take the oxygenated blood from the heart to the rest of the body. The arteries branch into small vessels called arterioles, and the arteries branch into capillaries which will give oxygen to the cells.
A pressure bandage controls bleeding and prevents the injury from being contaminated. The pressure bandage does not restrict blood flow as a tourniquet.
what force is caused by gas molecules and slows things down? answer ASAP!
A. Air resistance
B. Pulling
C. Friction
D. Gravity
Answer:
ima say that a makes the most sense but def not d
Explanation:
Answer:
A. Air resistance.
It slows things down
A chemist wants to show how the molecular structures of the major greenhouse-effect contributors allow them to
absorb heat.
Which of the following would the chemist not be modeling?
A) carbon dioxide
B) carbon monoxide
C) chlorofluorocarbons
D) nitrous oxide
E) methane gas
Answer:
Option C is the correct choice
Explanation:
The major contributor of green house effect are
a) Carbon dioxide (CO2)
b) Carbon Mono-oxide (CO)
c) Nitrous oxide
d) Methane
e) Ozone
The chlorofluorocarbons (CFCs) is a man made green house gas and hence the chemist will not model it as it does not allow to absorb heat. Instead it leads to non ending chain reactions with the ozone layer thereby degrading it and hence allow entry of harmful UV rays.
Option C is the correct choice
what is the difference between ovulation parturition, and gestation
Which of the following cells is NOT an antigen presenting cell?
B-Cells
Dendritic cells
Macrophages
T-Cells
Answer:Dendritic cells Explanation:
T- cells is not a antigen presenting cell.
What are T-cells?"T cells are part of the immune system and develop from stem cells in the bone marrow."" They help protect the body from infection and may help fight cancer."What is antigen presenting cells?"An antigen-presenting cell (APC) is an immune cell that detects, engulfs, and informs the adaptive immune response about an infection."It includes macrophages, dendritic cells and B- cells.Hence, the answer is T-cells.
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Are blue-green algae plants?
Blue-green algae are colored prokaryotes that can be
unicellular or can form colonies of cells, but they are not
truly multicellular. This algae species is autotrophic,
needs sunlight, and performs photosynthesis.
O yes, because they are not multicellular or eukaryotic
O yes, because they are autotrophic and need sunlight
O no, because they are autotrophic and need sunlight
O no, because they are not multicellular or eukaryotic
Answer:
Explanation:
d
Mendel examined many crosses involving traits found in pea plants. He identified being tall as dominant (T)
and short as recessive (t). What is the genotype of a heterozyous tall plant?
Answer:
Tt
Explanation:
Heterozygous means the organism has two different alleles, one for tall and one for short.
Question 10
What is missing from this food chain?
Grass > Grasshopper > Bird > Snake
A. Producer
B. Primary consumer
C. Secondary consumer
D. Decomposer
Answer:
D
Explanation:
In any food chain, the decomposers are an essential part, to decompose any dead thing. They don't go on the bottom or top, they are sorta to the side but are definitely on that chain.
What are the characteristics of the outer planets? (Check all that apply)
Small
Rocky
Made of gas
Large
High density
Low density
Rocky , made of gas , low density , small
hope it is helpful to you
Question 32
2 pts
Which of the following is true about horns and antlers?
Antlers are permanent and are made of hair.
O None of the other answers are correct.
O Horns are shed yearly and are made of hair.
O Antlers are shed yearly and are made of bone.
Horns are shed yearly and are made of bone.
Answer: C
Explanation:
Kinda common knowledge. Reindeer have antlers and they shed yearly
c) Taxol is a cancer medication that makes the structures in the cytoskeleton
more stable. This makes it harder for cells to form mitotic spindles. Why would
this be effective when fighting a tumor? (1 point)
Answer:
Explanation:
Taxol will be effective because it stops the uncontrollable cell division of cancerous cells. It makes it very difficult for cells form mitotic spindles and hence will make it very hard for the DNA to be divided. This will then stop division and causes it to die.
Describe the difference in how energy is transferred to producers and consumers
Answer:
Producers create their own energy using photosyntehsis. They absorb light and water to make glucose. Consumers have to eat, they can't make their own energy.
Explanation:
The chart below is a taxonomic key for the fictitious insect genus
Problematica. To which species does the insect in the picture belong?
Select one:
A. Problematica differensis
B. Problematica brancus
C. Problematica cantrellis
D. Problematica alva
Describe the role of group behavior in African and European honeybees on individual and species' chances to survive and reproduce,
Answer:
They operate a very organized division of labour
Explanation:
The role of group behavior in African and European honeybees on individual and species' chances to survive and reproduce can not be underestimated as they have the queen which is mainly responsible for laying eggs and the major reproductive process.
The soldiers help to protect the territory while the workers ensure there is enough food to last the members of the colony.
where does the energy supplied by ATP. come from
Answer:
Glucose
Explanation:
Answer:
Glucose
Explanation:
Because glucose converts to ATP by the process of cellular respiration.
PLEASE HELP I BEG :
Explain why all solids are not the same, even if they are made of the
same type of atoms? *
All solids are not the same, even if they are made of the same type of atoms because the arrangement of atoms is different.
If a microscope has a 40´ objective lens in place and a 15´ ocular lens, the total magnification of the microscope system under these conditions is
Answer:
600`
Explanation:
The total magnification of a microscope is obtained by multiplying the magnifying power of the ocular lens and that of the objective lens.
Mathematically.
Total magnification = ocular magnification x objective magnification
In this case, ocular magnification = 40`, objective magnification = 15`
Total magnification of the microscope system = 40 x 15
= 600`
Hence, the microscope system under these conditions would be 600`.