12. What is the probability of a girl being born after four boys have already
been born in a family?

Answers

Answer 1

Answer:

you always have a 50/50 chance of getting a boy or a girl

Explanation:


Related Questions

the xx chromosome type is found in__​

Answers

Answer:

[tex]females \: \: \: \: \: \\ it \: is \: your \: right \: answer \: [/tex]

What is the social function of exposition text?

Answers

Answer:

Exposition is a text that elaborates the writer‘s idea about the phenomenon surrounding. Its social function is to persuade the reader that the idea is important matter.

Explanation:

easy biology question:

Which of the following are not correctly paired with their function:

Golgi body - packaging and transport

Rough ER - modifying lipids

Microtubule - support and structure

Smooth ER - detoxification

will give brainliest! :)

Answers

Answer:

Rough ER - modifying lipids

Explanation:

Rough ER does not modify lipids! Smooth ER does that! Hope this helps :)

Please helppp!!! will give the brainliest it's probably easy

Answers

i think it is amino acids

A biological macromolecule is made up of glycerol and fatty acids. Based on this information, what type of molecule is this? Choose 1 answer: Choose 1 answer: (Choice A) A Nucleic acid (Choice B) B Carbohydrate (Choice C) C Protein (Choice D) D Lipid

Answers

Answer:

D. Lipids

Explanation:

A biological molecule that is made up of glycerol and fatty acids is known as Lipid. Thus, the correct option is D.

What are Biological macromolecules?

Biological macromolecules may be defined as those large and organic molecules that are important to biophysical processes. It includes carbohydrates, lipids, proteins, and nucleic acids.

Nucleic acids are derived from a pentose sugar, a phosphate group, and a base. Protein is derived from their monomers known as amino acids. Carbohydrates are derived from monosaccharides units such as glucose. It includes carbon, hydrogen, and oxygen.

Triglycerides are a simple form of lipids that are constructed with the help of one molecule of glycerol while three molecules of fatty acids.

Therefore, a biological molecule that is made up of glycerol and fatty acids is known as Lipid. Thus, the correct option is D.

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What soil properties are influenced by microorganism activity?

Answers

Answer:

Microorganism activity affects soil acidity and the amount of organic matter in soil. It also affects the nutrient and mineral levels in soil as well as soil structure.

Explanation:

Why is animal testing bad?

Answers

Answer:

Explanation:

Animal experiments may result in clinical trials of biologically faulty or even harmful substances, thereby exposing patients to unnecessary risk and wasting scarce research resources. Animal toxicity studies are poor predictors of toxic effects of drugs in humans.

Answer:

Experimenting with animals is not justified with anything, they practically play with beings that have life, emotions and that feel pain like all living beings.

Advances the experiments that are done on them, are not used, or the purpose is simply lost, as well as their life.

Body of a female was found in alley behind dumpsters in a major u.S city. No apparent wounds were observed on the body

Answers

Answer:

Interesting

??

In a certain flower, Red (R) is dominant over white (r). Complete the Punnett Square for the
following cross:
Mother: rr
Father rr
What percentage of offspring will be Red?
What percentage of offspring will be White?

Answers

100% will be white, 0% will be red.

Since all alleles are recessive, no flower can be red

Answer:

25 cuz thers rrr then R

Explanation:

I
5. The diagram below shows two kinds of cells.
Font
Arial
Regular
B
Character
A biologist wants to classify protein secretions into groups based on the principal function of the protein.
Which cell would the biologist select to study and why?
SC.912.L. 14.3
Alignment
A. The cell on the left, because it has genetic information organized into chromosomes.
B
B. The cell on the left, because it has organelles that secrete proteins.
C. The cell on the right, because it has free proteins throughout its cytoplasm.
D. The cell on the right, because it has a flagellum that enables movement.
Spaci
10
Bulle

Answers

Answer:

c

Explanation:

1 Vaccines have been produced to prevent and treat both tetanus and meningitis.
True
False
2 Tetanus is caused by polluted drinking water.
True
False
3 Tetanus can occur in crushing or deep wounds.
True
False
4 Meningitis may be transmitted from one person to another by:
water
sneeze
cough
soil
5 Meningitis most frequently affects:
adults
children
adolescents
women

Answers

Answer:

In immunology, an antigen is a molecule or molecular structure, such as may be present on the outside of a pathogen, that can be bound by an antigen-specific antibody or B-cell antigen receptor. The presence of antigens in the body normally triggers an immune response.

Answer:

1. true

2. false

3. true

4. sneeze, cough

5. children, adolescents

Explanation:

NERVOUS SYSTEM INFECTIONS

FULL QUIZ ANSWERS:

1. Tetanus is caused by polluted drinking water.

FALSE

2. Tetanus can occur in crushing or deep wounds.

TRUE

3. Communication for the senses and muscle coordination in the body is accomplished by the __________ system.

NERVOUS

4. Inflammation of the membrane linings of the spinal column or the brain is called ________________.

MENINGITIS

5. Meningitis most frequently affects:

CHILDREN

ADOLESCENTS

6. Muscle spasms and locked jaw, followed by convulsions, are symptoms of:

TETANUS

7. Vaccines have been produced to prevent and treat both tetanus and meningitis.

TRUE

8. Chlostridium tetani thrives near the surface of the skin.

FALSE

9. Why is tetanus associated with injuries which occur outdoors?

BACTERIA IN THE SOIL CAUSES TEANUS

10. Meningitis may be transmitted from one person to another by:

SNEEZE

COUGH

Fat under the skin
answer is insulation

Answers

Answer:

huh is there any question

Explanation:

Subcutaneous fat is a layer of fat just under the skin's outer layer (epidermis) and middle layer (dermis). ... This layer of fat helps to insulate your body, and is a primary way that our bodies store energy.

What is the main idea of this text?

A. Climate change is a complex and unpredictable process involving
feedback loops.
B. Disagreements about climate change have prevented scientists from
finding real solutions to global warming.
C. Wallace Broecker's theory may have been incorrect, but he presented
some worthwhile ideas.
D. Climate change can be completely reversed if carbon dioxide production
is changed.

Answers

Answer:

should be b

Explanation:

Answer:

disagreements about climate change have prevented scientific from finding real solutions to global warming

Please can anyone help me ill make you the brainiest, I need help with these questions!
1.How many moles of oxygen react with 10.5 moles of methane?
2.How many moles of methane react with 10.7 moles of oxygen?
3.How many moles of carbon dioxide are produced from 80 moles of methane?
4.How many moles of water are produced from 800 moles of methane?
5.How many grams of oxygen will react with 85 grams of methane?

Answers

Answer:

the moles of oxygen react only 1.05 moles

Explanation:

because the formula of methane is CH4 so it has 10 molecule so 10.5 ÷10 =1.05

Which animal has a bilaterally symmetrical body plan?

A jellyfish.

A lobster.

Coral.

Answers

Lobster is the answer. It can be split evenly down the middle
Lobster is the answer

Climax community- most stable community that takes hundreds of years to develop. The types of organisms change due to __?__.


competition


random chance


being the luckiest

Answers

I think the answer is Random chance

on what organelle does the process occur ?

Answers

Answer:

the chloroplast

Explanation:

There is a dominant trait that affects the short arm of chromosome #4 known as Huntington's disease. A woman that is heterozygous for Huntington's disease and a normal, unaffected male have a female child. What is the probability that this child may be affected by the disease?

Answers

Answer: 50%

Because there are different systems in the body to prevent diseases, however chromosome diseases are usually hereditary so there is about a 50% chance that the child may be affected by this disease.

Huntington's disease is a dominant chromosomal disorder, when a woman who is heterozygous marries a man who is normal, then the probability for the child to be affected is 50%.

What is Huntington's disease?

Huntington's disease is a rare genetic disease which causes the progressive breakdown of neurons present in the brain. Huntington's disease has a wide impact on a person's functional abilities and results in movement, cognitive thinking and psychiatric disorders.

When a woman who is heterozygous (Hh) for Huntington's disease marries a man who is normal (hh) for the disease, the probability of the offspring to be affected with the disease can be calculated with the help of Punnett square. And, it will be 50%.

The Punnett square is attached with the answer.

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The infection-fighting cells that are produced by the immune system are manufactured in specific places around the body, for example, in the lymph nodes and the spleen. However, an infection can occur anywhere in the body. How do these infection-fighting cells manage to move around the body and get to the sites of infection?

A. There are lymph nodes every few millimeters all over the body.

B. They are excreted and float freely around the body, hunting infections.

C. They are carried around the body in the circulatory system.

D. They are moved around the body as muscles squeeze against them.

Answers

Answer:b

Explanation:

Answer: C

Explanation:
those cells are white blood cells.

What are the differences between white blood cells and normal eukaryotic cells?

Answers

Answer:

White blood cells (WBCs) are specialized to respond to antigen and produce antibodies as well as undergo phagocytosis in response to toxic stimuli.

WBCs are part of immune system and there are five different kinds with specialized features.

In order to make a cell model, it is best to use a muscle cell and a nerve cell or neuron: there are pronounced structural differences and those are present throughout animal kingdom.

Lower animals ( such as insects, worms etc. ) have different immune system, however, they do have typical neuron and a muscle cell/skin cell (fibroblast). Such cell models are likely to be easy, distinct and bring you good grades without going through much complication and confusions of various organ systems and animal mod

Explanation:

1.
The bud shown in the diagram below was produced by asexual reproduction. Which process is responsible for the formation of the bud?

2 Asexual reproduction differs from sexual reproduction in that, in asexual reproduction..

(a) new organisms are usually genetically identical to the parent

(b) the reproductive cycle involves the production of games

(c) nuclei of sex cells fuse to form a zygote

(d) offspring show much genetic variation

Answers

Answer: 1. Mitosis

2. Answer A.

Explanation:

Stick insects that reproduce asexually are less biologically diverse because they can't evolve as quickly as species that reproduce sexually can. Thus, option A is correct.

What is role of asexual reproduction in evolution?

Asexual reproduction, in contrast to sexual reproduction, only contributes to genetic variety in the population if a chance mutation in the organism's DNA is passed on to the progeny.

Evolution can occur gradually. Asexual creatures often evolve relatively quickly following a dramatic mutation and do not need as many generations to accumulate adaptations as do populations that reproduce sexually.

Asexual reproduction has the benefit of allowing for rapid population growth under the right circumstances. You only require one parent. Since you don't require a partner, it is more time and energy efficient.

Therefore, new organisms are usually genetically identical to the parent.

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Witch example of potencial energy being transformed into kinetic energy?

Answers

A buffed up ballon being poked and having air released out of it

Answer:

Example of potential energy being transformed into kinetic energy  will be; Holding a ball in your hands and then throwing it down a hill. The move of the ball as being transformed to kinetic energy.  

Explanation:

Potential and kinetic energy are two forms of energy that can be converted into each other.   Potential energy is the energy held by an object because of its position relative to other objects or its electric charge. While kinetic energy of an object is the energy that it possesses due to its motion.

Which of the following is a function of the cell wall?
(Choice A)
A
To package proteins

(Choice B)
B
To carry out photosynthesis

(Choice C)
C
To give the cell a rigid structure

(Choice D)
D
To provide energy for the cell

Answers

Answer: (Choice C)

To give the cell a rigid structure

Explanation:

It is in its name! Cell WALL (walls provide structure) ! In addition, choice A refers to the ER, choice B refers to cholorplasts, and choice D refers to the mitochondria (The powerhouse of the cell). This leaves choice B as the the only answer!

Hope this helps :)

Answer:

D.

Explanation:

to provide energy for the cell

please help me:( please

Answers

Answer:

1. F

2.T

3.F

Explanation:

The first organisms on Earth were most like today's
O Autotrophs anaerobic
O Eukaryotes
O Protista
O Heterotrophs aerobic

Answers

Answer:

O Autotrophs anaerobic

hope it will help you

Which type of organisms do photosynthesis?

Answers

Answer:

producers

Explanation:

hope this helps

Answer: Plants, algae, and a group of bacteria called cyanobacteria are the only organisms capable of performing photosynthesis.

Explanation: Because they use light to manufacture their own food, they are called photoautotrophs (literally, “self-feeders using light”).

The thing that makes a wave a wave is that it___________from one place to another.
A. Transport energy
B. Transports the medium
C. Travels with a vacuum
D. Carries Solids

Answers

Answer:

A?

Explanation:

All waves carry energy from one location to another, but they do not move any physical objects. The energy is transferred from one particle to the next, which then oscillates as well. Thus, option A is correct.

What is the energy transport property of wave?

The vibration of particles, which transfers energy in waves, causes the particles to travel perpendicular to the wave's horizontal movement. As the particles transition from rest to movement and back to rest, energy is changed between potential (stored) and kinetic (moving) energy.

However, waves do not move mass. By colliding with one another and exchanging energy, the particles “participate” in the wave. Because of this, energy can be transferred even when the particles' average positions remain unchanged.

Therefore, The thing that makes a wave is that it transport energy from one place to another.

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If a SARS-CoV2 virus were to mutate and become and become better at attaching to respiratory cells, how would natural selection lead to this mutant virus becoming the dominant virus type? Use the four steps of natural selection in your response: overpopulation, genetic variation, competition, differential reproductio.

Answers

Answer:

Mutations leading to the better attachement of virus to the host cell would allow the virus to spread the infection and leave more progeny. The reproductive fitness of mutant viruses would allow the mutation to spread.

Explanation:

1. The organisms with same resource requirement compete with each other. Viruses are not living things but once inside the host cell, they behave like living things. Rapid multiplication of virus overpopulate the host cells.

2. Genetic variations are added to the viral progeny by random errors during replication of the viral genome. These random variations may  impart beneficial trait, harmful feature or remain neutral. If a random mutation in the SARS-CoV2 virus allows it to adhere better to the cells of the respiratory system, the virus would be better able to infect these cells to spread the infection. Once inside the host cells, the mutant virus would leave more progeny. On the other hand, the wild type virus that lack this mutation would  have lesser chances of entering the host cells and may or may not replicate.

3. The progeny of the mutant virus would compete better with the non mutant ones due to the presence of same mutation.

4. Differential reproduction and more progeny of the mutant virus would spread the mutation among the virus.

The thermal energy of matter depends on its _________. a mass. b temperature. c number of particles. d all of the above.

Answers

your answer is D all of the above

What are adaptations and give an example.

Answers

Answer:An adaptation can also be behavioral, affecting the way an organism responds to its environment.

Explanation:

An example of a structural adaptation is the way some plants have adapted to life in dry, hot deserts. Plants called succulents have adapted to this climate by storing water in their short, thick stems and leaves.

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