What is not a following factor influencing natural selection
Should everyone use
paper or plastic grocery bags?
When you start with 3 cell, at the end of mitosis, how many identical cells will you have?
Responsible for the flow of
___, and other ______, and
hormones to and from.
Answer:
kidney
Explanation:
pancreas to regulate salt
HELP PLEASE WILL GIVE POINTS FOR VOLCANOS DRAG AND DROP USE ATTACHMENT PLEASE
Answer:fissure (g) evacuate (b) magma (c) lava (h)
Explanation:
how is it possible for one twin to get skin cancer but the other one doesn´t
Looking at most newborn twins squirm contentedly in their cribs, you'd never guess that some were recently in peril. That's because carrying multiples raises the risks that a woman can suffer complications before she actually delivers.
Many twins are miscarried early in the pregnancy, often before a woman even knows she's pregnant. As reported in the International Journal of Fertility, only about one in eight embryos that starts as a twin is born as a twin. If they do survive, twins are usually born healthy. However, they are still more likely than other babies to have birth defects or to be born prematurely or underweight.
Carrying twins can be hard on you, too. You'll be more likely to develop pregnancy-related high blood pressure or diabetes. And there's a greater likelihood you will have a cesarean section when you deliver.
If you're carrying twins, some simple lifestyle changes and good prenatal care may help you reduce the likelihood of the following complications.
Low birth weight
Because they have to share nutrients and living space, newborn twins tend to be smaller than single babies. Even full-term twins often weigh less than 5-1/2 pounds each, making them vulnerable to a variety of health problems. You can help your babies reach a healthy size by making sure you put on enough weight during pregnancy. Try to eat 300 calories more each day than you would if you had a single baby (about 2,700 calories in total). If you had a healthy weight before pregnancy, you should aim to put on about 35 or 45 pounds.
Unequal size
Twins don't always share equally. In roughly 30 percent all twin births, one baby will be larger than the other. Some studies suggest that if one of your babies is at least 25 percent heavier than the other, one or both of them may be more likely to have breathing problems or need intensive care. Your doctor will track the growth of both your babies throughout your pregnancy. The first signs of unequal growth usually appear in the third trimester.
Twin transfusion syndrome
Twin transfusion syndrome poses a dangerous threat to identical twins who share a single placenta. It's normal for such twins to exchange blood during a pregnancy. But in about 20 percent of cases, one twin starts pumping large amounts of blood to the other twin, putting both of them at risk. In severe cases, the twin receiving the extra blood may develop heart failure while the other twin becomes dangerously anemic. Early diagnosis and treatment can slow the abnormal blood flow and lower the risk of complications.
Birth defects
Birth defects are common in twins, especially identical twins. Taking folic acid before and during pregnancy can help prevent neural tube defects. As reported in the medical journal The Lancet, however, about 10 percent of all identical twins are born with a birth defect such as a heart problem, a shortened limb, a club foot, or a dislocated hip (the conditions listed are linked to having less space in the uterus and would not be affected by folic acid.) Most of these conditions are treatable, however.
Risks to the mother
Your doctor will check you regularly throughout the pregnancy for signs of high blood pressure or diabetes. When detected early, both of these conditions can be controlled before they have a chance to threaten your pregnancy.
Special care
Carrying twins means you'll probably get extra attention from your doctor throughout your pregnancy. The doctor may suggest cutting back on activities between the 20th and 30th week of pregnancy, even if you haven't had any signs of labor. Many physicians also recommend an extra monitoring check on the babies' heart rate and movement, such as an ultrasound or nonstress test. A biophysical profile, which checks on heart rate, movement, and the amount of amniotic fluid in your body, might also be indicated. If you do go into labor prematurely, your doctor may suggest drugs to stop the labor or use corticosteroids to speed up the development of the babies' lungs.
It's possible that you may be able to deliver twins vaginally. But if the labor is difficult, the birth canal is too narrow, or one or both of the infants is in the breech position, you may have to undergo a c-section, in which the babies are delivered through an incision in your uterus. Talk to your doctor about what you can do to prepare for delivery.
Twins are a special challenge, both before birth and after. For now, your job is to stay healthy and get top-quality prenatal care. Two important people are counting on you.
Does this help lol :D
Answer:
Skin cancer can be genetic but just because twins are twins doesn't mean the both must have cancer if it isn't genetic and one twin got it it docent assure you for both getting it if that makes sense example one twin scrapes their knee doesn't mean the other one will have a scraped knee too .
Explanation:
On the Galápagos Islands, Darwin observed tortoises with domed and saddle-shaped shells. How did Darwin’s observations of these tortoises help him form the theory of evolution by natural selection?
The original DNA gene for a certain protein reads “TTC CAT GGG GAC." The mutated version of this gene reads “TTC CGT GGG GAC." This type of mutation is best described as...
A frameshift mutation
A silent mutation
An addition mutation
A substitution mutation
D. A Substitution Mutation
Answer:
substitution
Explanation:
the "a" in the trio "cat" was changed to a"g"
4. How do enzymes affect the speed of a chemical reaction?
Answer:
Enzymes are biological catalysts. Catalysts lower the activation energy for reactions. The lower the activation energy for a reaction, the faster the rate. Thus enzymes speed up reactions by lowering activation energy.
Explanation:
Scientist describe the motion of an object in relation to another_______
Answer:
phenomenon
Explanation:
phenomenon
Dead matter and waste would pile up without which type of organism?
A decomposer
B. consumer
C. producer
Answer:
The answer is A. Decomposer
Explanation:
Which of the following BEST describes the individual represented by the karyotype?
A. male with Turner's syndrome
B. normal female
C.female with Down syndrome
D. Female with Edward's syndrome
Answer:
B
Explanation:
I looked it up
Nonpoint source pollution is difficult to control because it _______. a. comes from a direct point of origin b. comes from a variety of sources c. remains the same over time d. none of the above Please select the best answer from the choices provided
Answer:The correct option is B.
comes from a variety of sources
Explanation:
Nonpoint source pollution is a form of pollution that is generated from different sources which include land runoff, rainfall, seepage, deposits from atmosphere and drainage, and seepage. Nonpoint source pollution is cause from rain falls as a result, its water flow through the ground , therefore the runoff wash and pick the pollutants and discharge them into water bodies. Nonpoint source polution is very difficult to control because it's originate from different type of sources.
Answer:
b. comes from a variety of sources
________Is responsible for most of the damage buildings suffer during earthquakes????
Can anyone help me please I need this in a few mins
When measuring the brightness of a star, what is a limitation of using apparent magnitude rather than absolute brightness?
Apparent magnitude does not use the star's color or temperature.
Apparent magnitude is only theoretical, thus its value cannot be directly measured with equipment.
Apparent magnitude does not take into account the fact that not all stars are the same distance from Earth.
Apparent magnitude is only on a comparative scale that determines how bright a star looks from a theoretical distance of 32 light-years from Earth.
Answer:
D. Apparent magnitude is only on a comparative scale that determines how bright a star looks from a theoretical distance of 32 light-years from Earth.
Explanation:
I majored in Biology
Answer:
Yea what the first guy said.
Explanation:
The seed capsules of the Himalayan balsam plant explode when touched and can eject seeds as far as 16 feet from the parent plant. Is this a structural adaptation, behavioral adaptation, or both?
Answer:
behavioral adaptation
Explanation:
A structural adaptation is defined as the adaptation in which physical features of organisms or plants while behavioral adaptation is defined as the activities an organism or plant do to survive.
The Himalayan balsam plant is an example of behavioral adaptation because it disperse its seeds when it ripe and touched by someone, for its survival it shows it dispersal behavior and spread seeds as far as 16 feet from the parent plant. In the fear of someone can harm by touching it, the survival instinct of balsam plant shows behavioral adaptation.
Hence, the correct answer is " behavioral adaptation".
The mass of an object multiplied be it's speed is?
Answer:
momentum
Explanation:
A male and female Oompah have the same genotypes: blue face (ff) and big feet (Ll). Determine what they’re offspring may look like!
Answer:
They Will have Blue Face and Large feet
Explanation:
for the blue face you will get 100% Blue face
for the large feet you will 75% Large feet and 25% small feet
2. Krypton (Kr) is a colorless gas that does not conduct electricity. Where would you
find this element on the Periodic Table?
a. On the left
b. On the right
C. In the middle
d. At the bottom
What is one of the main ways that evolution occurs in prokaryotes?
A. Crossing over during DNA replication
B. Exposure to pathogens that change DNA
C. Mutations that occur during binary fission
D. Exchanging DNA during alternation of generations
E. Decomposing dead organisms
Answer:
answer:
the.answer.is.b
B B B
One of the main ways that evolution occurs in prokaryotes is through mutations that occur during binary fission, which is present in Option C. In prokaryotes, which are single-celled organisms that lack a nucleus, evolution occurs primarily through mutations that occur during binary fission.
What is mutation?Prokaryotes, which include bacteria and archaea, are unicellular organisms that lack a nucleus and other membrane-bound organelles. They are known for their remarkable adaptability and ability to evolve rapidly in response to changing environmental conditions, and beneficial mutations that improve an organism's fitness, such as antibiotic resistance, can quickly spread through a population through natural selection.
Hence, one of the main ways that evolution occurs in prokaryotes is through mutations that occur during binary fission, which is present in Option C.
Learn more about the mutation here.
https://brainly.com/question/2639398
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Negative feedback: If oxygen levels are low, then respiration should
A. increase
B. decrease
Answer:
B. Decrease
Explanation:
Positive feedback is an increase while negative feedback is a decrease.
help me plz ill make sure i answer one of ur question.
Answer:
I think it would be C.Hot and bright
Explanation:
Because stars are usually hot and bright my bad if I'm wrong
One difference between cell division in plant cells and in animal cells is that plant cells have...
A. centrioles.
B. centromeres.
C. a cell plate.
D. chromatin.
Answer
A. centrioles
higher plant cells do not have centrioles in cell division.
A_____is the orbiting of an object around another body
Answer:
revolution
...................
A revolution is the equivalent of one entire orbit around something
(ie, earth around sun/ moon around earth) and is the equivalent of one year.
Answer: A REVOLUTION is the orbiting of an object around another body.
Explanation: revolution- the orbiting of an object around another object. One complete revolution around the sun is called a year.
why might it be important to know a person's lung capacity?
Answer:
Explanation:
I would talk about how lung can help dictate someones physical condition, and the shape that their lungs are in. (dictate VO2 max, etc.) it can also tell yo u whether someone is severely out of shape, a smoker, in very good shape, a runner, etc.
Please help me answer these questions. I need a quick answer please.
1. True or False: Most of the forests you know started out as barren rock piles without any life?
2. The formation of this land is often the result of what two things?
3. The first organisms to move into these harsh growing conditions are known as?
4. True or False: Soil begins to form from the rocks only through the process of Erosion.
5. Decomposition of pioneer species provides what to soil?
6. What is formed during the third phase of primary succession?
7. Annuals only live for how many years?
8. What are two examples of Perenials?
9. True or False: Perennials grow year-round?
10. What is not an example of Softwood trees?
11. Pick all the examples of Hardwood trees *
* Pine
*Oak
* Fur
*Maple
*Elm
12. The ecosystem continues to change until eventually this final ____ is reached.
13. The process of a barren land being colonized by plants for the first time is known as...
14. True or False: Primary succession takes 100 years
15. What is the foundation of any ecosystem?
16. Why are plants needed first in an ecosystem?
17. How do Biomass and Biodiversity change during the process of ecological succession?
18. What can destroy a Climax Community?
19. True or False: A forest must be recovering from a disaster to be going through Primary Succession?
20. Is secondary succession faster or slower than primary succession?
Answer: 1. false
Explanation: life always has a starting place
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and ur tab yeah man sry hdhdhhdvdvdv I am hat bb
1. A disease vector is a(n)
A) organism that transmits a disease
B) symptom of a disease
C) environmental condition associate with a disease
Answer:
the answer is A
Explanation:
*
What kinds of organisms use anaerobic respiration?
Answer:
Certain prokaryotes, including some species of bacteria and Archaea, use anaerobic respiration.
Explanation:
For example, the group of Archaea called methanogens reduces carbon dioxide to methane to oxidize NADH. These microorganisms are found in soil and in the digestive tracts of ruminants, such as cows and sheep.
Read the following scenario to answer this question:[/HTML]Mike loves to cook. He heard that if you add salt to water, it will boil faster. If it’s true, it could save him a lot of time in the kitchen. He decided to perform an experiment to test this hypothesis. He set up three pots, each containing three liters of water. In the first pot, he didn’t add any salt; in the second pot, he added one tablespoon of salt; and in the third pot, he added two tablespoons of salt. He got out his stop watch and turned the stove on under all three of the pots.Is there a control group, and if so, what is it? ____________________
Answer:
The pot with no salt
Explanation:
Control groups are what you compare the experimental groups to.
