Answer:
Meiosis: it increases genetic variation, which helps ensure the species will survive.
Explanation:
Crossing over and genetic recombination happen during meiosis and both processes ensure that the daughter cells are genetically variant from the parent cells.
Crossing over and genetic recombination increase the genetic variability of a population and consequently increases their chances of survival in case of changes to the environment.
How might giving a mumps vaccine to a boy protect his reproductive health later?
Answer:
Mumps can cause infertility. By giving a mumps vaccine to a boy, we are preventing the full effect of the disease if the boy has mumps in the future because the body is protected against this virus thanks to the vaccine.
Explanation:
Mumps can cause infertility in men. If we give a boy the mumps vaccine, we are giving him a modified version of the virus that is harmless, but that will make the body produce the specific antibodies for the disease. If in the future the boy has mumps it will be less harsh since his body has the antibodies to fight mumps and his fertility will not be at risk.
Mildred is a 74-year-old woman in good health. when asked whom she expects to take care of her when she can no longer care for herself, mildred (like most elderly americans) expects that she will be taken care of by her __________.
The _______ mater is the membrane that covers the surface of the brain.
a. pia
b. periosteal
c. arachnoid
d. dura
A surgical connection between blood vessels or the joining of one hollow or tubular organ to another is called ________.
The thresher and irrigation practices were two innovations that were created during the first agricultural _____ from 1862 to 1875.
Answer:
revolution.
Explanation:
Final answer:
The thresher and irrigation practices are innovations of the first agricultural revolution from 1862 to 1875, part of the broader Industrial Revolution that introduced significant changes in agriculture, including the use of gasoline-powered farm tools.
Explanation:
The thresher and irrigation practices were two innovations that were created during the first agricultural revolution from 1862 to 1875. This period, which overlapped with the Industrial Revolution, brought about a significant change in agricultural practices. Innovations such as gasoline-powered farm tools, including tractors, seed drills, threshers, and combine harvesters, revolutionized farming. These advancements allowed farmers to cultivate larger fields with a single crop, increasing their efficiency and productivity.
Such changes also followed earlier agricultural improvements, dating back to the introduction of basic tools around 2500 B.C., and continued advancements such as the introduction of fertilizers and three-field crop rotation techniques in the middle ages. The influence of technological innovation in agriculture eventually led to an increased capacity to satisfy the growing food demands of rising populations.
Inventions such as the seed plough by Jethro Tull and the concept of crop rotation by Charles Townsend in the 18th century paved the way for these significant shifts. The idea was to maximize productivity and cope with the ongoing demands of population growth. These innovations also supported America's rise as a major food exporter during World War I and the 1920s. Machine-powered irrigation systems further underscored the mechanization of agriculture, enabling farmers to cultivate larger areas and enhancing the reliability and quality of crop production.
Cuales han sido las causas de la diseminación de las epidemias,causando millones de muertes
Identify the organelles in the cell to the right.
A: _____
B: _____
C: _____
D: _____
E: _____
F: _____
A- Vacuole
B- Chloroplast
C- Cell membrane
D- Golgi bodies
E- Smooth and rough endoplasmic reticulum
F- Cell wall
This is a structure of a plant cell which unlike animal cell has a cell wall as well as plasma membrane. It also contains large vacuoles present in the center of the cell. The green color of the plants is due to the presence of chlorophyll which is present in an organelles called chloroplast.
Answer: here are the correct answers
Explanation:
A
✔ vacuole
B
✔ chloroplast
C
✔ cell membrane
D
✔ Golgi apparatus
E
✔ endoplasmic reticulum
F
✔ cell wall
What organ provides the major control for homeostasis of body fluids?
The answer is kidneys. These are two bean-shaped body part, individually about the size of a fist. They are positioned just beneath the rib cage, one on separate side of the spine. On a daily basis, the two kidneys screen about 120 to 150 quarts of blood to make approximately 1 to 2 quarts of urine that comprises of wastes and extra fluid.
How do floating disks correspond to the rate of photosynthesis?
Which medical breakthrough is most likely to appeal to an overweight person?
Name some endocrine drugs that are derived from animal sources
Which food is a rich source of fiber?
a.honey
b.corn oil margarine
c.whole-wheat bread
d.farm-raised salmon?
Pesticides are helpful for increasing the food supply. Which use of pesticides is most dangerous for humans?
Answer:spreading pesticides with airplanes
Explanation:
What simple molecule reacts with itself to form a disaccharide?
After a natural disaster such as a hurricane or tornado, what will happen in the damaged ecosystem?
Answer:
Depending on the type of natural disaster, the ecosystem will be more or less damaged.
Explanation:
After a huracane or tornado the balance or homeostasis of the ecosystem will be very damaged. Biotic (all living organisms) and abiotic (non-living organisms) will be detroyed, killed, relocated and /or lost. Due to this situation, it will take a while for the ecosystem to recover.
Depending on the damage of the natural disaster and the capacity of recovery ( resilence), this ecosystem will take long time or short time in being recuperated. In terms of nature, primary species will arrive first, then secondary, and this "re-poblation" will promote the recuperation of the ecosystem.
In pea plants, the allele for tall (t) is dominant to the allele for short (t). the genotype for a short pea plant is _____.
A pregnant woman with diabetes is having her glycosylated hemoglobin level evaluated. the nurse determines that the woman's glucose is under control and continues the woman's plan of care based on which result
In Medicine, the glycosylated hemoglobin level, or hemoglobin A1c, is used to evaluate glucose control in a pregnant woman with diabetes. A result less than 7% is considered well-controlled, which would lead a nurse to continue the woman's current plan of care. Proper glucose management during pregnancy is key to reducing the risk of various maternal and fetal complications.
The subject of this question is Medicine, specifically within the branch that deals with gestational diabetes and its management during pregnancy. The glucose control in a pregnant woman with diabetes can be assessed by measuring the glycosylated hemoglobin, also known as hemoglobin A1c. This test reflects the average blood glucose level over the previous three to four months. A nurse would consider a pregnant woman's glucose well-controlled and continue with the current plan of care if the hemoglobin A1c result is less than 7%, which approximates an average glucose level of 135 mg/dl or lower.
However, if the levels are above 9%, it indicates poor control, and over 12% is very poor control. For pregnant women, maintaining a glycosylated hemoglobin level as close to normal as possible is important to minimize the risk of complications to both the mother and the baby. It is crucial during pregnancy to have good glucose control to prevent conditions such as preeclampsia, premature birth, and risks associated with a baby that is too large.
Which process produces a greater number of offspring? A) chromosome duplication. B) asexual reproduction. C) gamete formation. D) sexual reproduction
When does diffusion occur across a cell membrane
Diffusion occurs across a cell membrane when there is a concentration gradient of a substance. It is the movement of particles from an area of high concentration to an area of low concentration.
Explanation:Diffusion occurs across a cell membrane when there is a concentration gradient of a substance. It is the movement of particles from an area of high concentration to an area of low concentration. This process allows small molecules, such as oxygen and carbon dioxide, to pass through the lipid bilayer of the cell membrane.
For example, in our bodies, oxygen molecules diffuse from the blood into our cells, while waste products like carbon dioxide diffuse out of the cells and into the blood.
Overall, diffusion is essential for the exchange of substances and for maintaining homeostasis within cells.
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Diffusion occurs across a cell membrane when molecules move from an area of higher concentration to an area of lower concentration.
Since this is a passive transport process, no energy is needed. The thin structure of the cell membrane facilitates the quick and effective exchange of substances.
Two important examples of molecules that diffuse through the cell membrane are carbon dioxide and oxygen; the former enters the cell as it is needed for cellular respiration, while the latter is a waste product.
Other molecules that can dissolve within the lipid bilayer, such as nutrients, also enter the cell via diffusion, and waste products produced by cellular processes are expelled in a similar way.
The rate of diffusion through cell membranes can be relatively high due to their thin nature (usually 6.5 × 10⁻⁹ to 10 × 10⁻⁹ meters).
a whelk is a herbivore or carnivore or a omnivore
The ________ is the area monitored by a single receptor cell.
how is an animal's point of balance determined? A. it's height B. it's weight C. it's reaction time D. its wide angle-vision
Answer:
I got wide angle-vision correct
Explanation:
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Look carefully at the model. Plants take in and release carbon dioxide. Plants require carbon dioxide for the process of
A) condensation.
B) photosynthesis.
C) respiration.
D) transpiration.
What do alzheimer's parkinson's and mad cow disease have in common?
The stomach uterus and bladder are lined with what
Answer: Smooth Muscles
Glial cells are the information processing units of our central nervous system. true or false
In the water diffusion over a membrane activity, what substance was actually able to pass through the membrane?
Where would you expect to find burrowing animals?
A. only in the temperate grasslands
B. only in the tundra
C. in a wide variety of biomes
D. only in the desert
Burrowing animals can be found in a wide variety of biomes, not just in one specific type of biome. The correct answer is option C.
Biomes are large regions of the world that are characterized by their distinctive climate, vegetation, and wildlife.
Burrowing animals, such as groundhogs, prairie dogs, and rabbits, create tunnels and burrows in the ground for shelter and protection. They can be found in a range of biomes, including grasslands, forests, deserts, and Tundra's.These animals use their burrows for shelter, protection, and to find food. The presence of burrowing animals can have a positive impact on the soil and ecosystem, as they create tunnels that help aerate the soil and provide homes for other animals.In conclusion, burrowing animals can be found in a wide variety of biomes, including grasslands, forests, deserts, and tundra's. Option C is the correct answer.
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Which accessory organ of the digestive system is responsible for almost 200 known functions?
What organelle was the thin white layer around the egg (keeps the outside out and the inside in)