Biology High School

Where would you find a strong acid on the pH scale?
A. 1
B. 5
C. 3
D. 13

Answers

Answer 1

Answer:

A. 1

Explanation:

pH is a measure of how acidic/basic a substance is. The range goes from 0 - 14, with 7 being neutral. pHs of less than 7 indicate acidity, whereas a pH of greater than 7 indicates a base.

note: the closer you are to the neutral the weaker it gets.

Where Would You Find A Strong Acid On The PH Scale?A. 1B. 5 C. 3 D. 13

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What is biological?​

Answers

Answer:

1. connected by direct genetic relationship rather than by adoption or marriage

2. of or relating to biology or life and living processes

3. used in or produced by applied biology

Explanation:

Biology is the scientific study of life. It is a natural science with a broad scope but has several unifying themes that tie it together as a single, coherent field. For instance, all organisms are made up of cells that process hereditary information encoded in genes, which can be transmitted to future generations. Another major theme is evolution, which explains the unity and diversity of life.

Answer:

of or relating to biology or to life and living processes

Which structure is an important site for early blood cell formation and is the first of the extraembryonic membranes to form

Answers

Yolk sac is a structure that has a short duration in intrauterine development and is an important site for early blood cell formation.

What is the yolk sac?

It is the bag that houses yolk inside and that allows the embryos of certain species to feed in the initial stages of development.

Due to this structure, the embryo receives oxygen and nutrients and can discard its waste, in the case of the human being, the yolk sac fulfills the functions of the circulatory system, until the internal circulation begins to develop.

Therefore, we can conclude that the yolk sac is a structure that has a short duration in intrauterine development and is an important site for early blood cell formation.

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All of the following are considered abnormal findings in a dipstick urinalysis except __________________
a. urea. b. red blood cells. c. glucose d. proteins

Answers

In a dipstick urinalysis, red blood cells, glucose, and proteins all indicate abnormality but urea does not.

Abnormality urine

The components of normal urines include urea, chlorine, creatinine, and nutrients such as potassium, sodium, and other dissolved ions.

Proteins can also be present at a very minute level. However, the presence of red blood cells, glucose, and too much proteins is usually an indication of abnormality with an underlining health problem.

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From a classification standpoint, which of these organisms shares the LEAST similarities with humans?

Answers

Answer:

hair

Explanation:

All animals have hair, not only that one

Which Frog did Mosa pick and why?

Answers

Based on the video, Mosa picked Frog 3 because it's a father frog which has all the traits that the children possess but the mother frog didn't have.

What is genetic variation?

Genetic variation can be defined as a terminology which is used to describe the difference in the deoxyribonucleic acid (DNA) sequence in each of the genomes of a living organism.

Just like every other living organisms that reproduce through se-xual reproduction, frogs get a single allele from each parent. Based on the video, it should be noted that Mosa picked Frog 3 because it's a father frog with all the traits that the children possess but the mother frog didn't have.

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1. Use the graph to answer the question; If this graph represent municipal solid waste today, how might this chart have looked different before the 1970's? Why?​

Answers

Answer:

everything that is not not made into anything yet wi be bigger

Explanation:

The increased speed and effectiveness of a second immune response to a pathogen is due to the presence of ____________.

Answers

Answer:

Memory Cells

Explanation:

Initiates antibody production if antigen is encountered again.

When a primary follicle enlarges, and there are several layers of granulosa cells, it is called a:.

Answers

A follicle with a single layer of cuboidal granulosa cells is called a primary follicle. A follicle with more than one layer of granulosa cells is called a secondary follicle. Eventually, fluid-filled vesicles occur n the granulosa cell layer, forming early antral follicles.

What is a secondary follicle?

A secondary ovarian follicle is a maturing ovarian follicle including of an oocyte encircled by two or more layers of tall, keeping granulosa cells.

Thus, A secondary ovarian follicle is a maturing ovarian follicle consisting of an oocyte surrounded by two or more layers of tall, supporting granulosa.

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The cross-fertilization of two different, but true-breeding, varieties of pea plants will _____.

Answers

Answer: Result in Hybrid Plants

Explanation:

The cross-fertilization of two different, but true-breeding, varieties of pea plants will result in hybrid plants.

sarah and maria made a telephone using two cans and a string

Answers

Answer:

what and the question is

What is gobal warming ?
A. A decrease in earths average surface temperature.
B. An increase in earths average surface temperature.
C. A decrease in the amount of deforestation.
D. An increase in the concentration of ozone.

Answers

Answer:

b

Explanation:

because global warming is caused by an increase in earths temperature

Your answer is B, my friend

The ability for people to roll their tongue is dominant to people who cannot. If a tongue roller and a non-tongue roller were crossed, the highest percentage of potential non-tongue roller offspring would be which of the following?

Answers

Answer:

50%

Explanation:

Tounge rolling is a dominate trait, so that means it would have to have at least 1 captial letter in it't genotype (assuming captial letters refer to the dominate trait). But, because the demonate trait covers any non-dominate traits, you can have a lower case letter in the genotype while still having someone be a tounge roller (assuming lower case letters are non-dominate traits)

Because non-tounge rollers are non-dominate, they must have two lower case letters in their genotype.

This leaves you with the two genotypes of :

AA or Aa (tounge rollers)

aa (non-tounge rollers)

When crossing AA with aa in a punette, every outcome is Aa. This leaves you with no potentional non-tounge rollers. But, you can still cross Aa with aa, because as said before Aa has a dominate gene, so it would result in someone with the tounge rolling ability.

When crossing Aa and aa in a punnet sqaure, you can get outcomes. Aa or aa. 2 of teh 4 options are Aa, and 2 of teh four options are aa. This means half, or 50% of the offspring are predicted to be non-tounge rollers, showing the high ercentage must be 50%.

Where did the asteroid that killed the dinosaurs land.

Answers

Answer:

off the coast of Mexico

Explanation:

Which ion channel is responsible for the rising phase.

Answers

Answer:

gated sodium channels

Explanation:

These channels are activated when the cells membrane potential reaches threshold and open immediately.

Which of the following would a groundwater hydrologist study?
O a pond
O a lake
O an aquifer
O a river

Answers

A hydrologist would study an aquifer.  

What do you mean by Hydrologist?

A hydrologist may be defined as a person who studies water present on the earth's surface and determines all possible characteristics, levels of contamination, and supply of particular water resources.

An aquifer assists in filtering groundwater by compelling it to perish through small pores and between sediments. It helps in the removal of impurities present in the water.

Therefore, hydrologists prefer an aquifer to study groundwater.

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Answer:

Career Profile: Hydrology Quick Check

Explanation:

Why do scientists measure levels of dissolved oxygen in water? - to analyze water quality

What do hydrologists study? -  water

Which of the following would a groundwater hydrologist study? - an aquifer

I don’t have anything to ask !

Answers

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Women often have complications during labor while giving birth to very large babies, whereas very small babies tend to be underdeveloped. This situation results in which kind of selection on birth weight?

Answers

Answer:

Stabilizing Selection

Explanation:

In this case, an average individual in a population is favored. There is no adaptive change or evolution, and the population looks more similar over time. Extreme phenotypes become less common.

hope this helps!

Red hair may have evolved in Neanderthals and then was introduced into human populations via interbreeding. If this is true, this would be an example of
A. gene flow.
B. genetic drift.
C. the founder effect.
D. natural selection.
E. gene pooling.

Answers

The answer is gene flow A

what is the function of DNA​

Answers

Answer:

Well, there's a couple of functions...

To form proteins and RNA.

To exchange the genetic material of parental chromosomes during meiotic cell division.

To facilitate occurring mutations and even mutational change in a single nucleotide pair, called point mutation.

Explanation:

Does this answer your question???

I need to know what most likely will affect this ecosystem if the vegetation population decreases drastically

Answers

Answer:

well a lot of anmials would die from lack of food and that would affect the poeple to since we eat animals

Explanation:

We need plants just like them

List three examples of vestigial structures in humans.

Answers

Palmar Grasp Reflex. inherited reflex. Tails. In the sixth week of gestation, the human embryo possesses a tail, complete with several vertebrae. Wisdom Teeth.

Humans are capabale of living with out The Appendix, Wisdom teeth, or a tailbone.

Habitat fragmentation is
caused by

Answers

Answer: human activity

Explanation:

A suggested and testable explanation for an event is called a ________.

Answers

Answer:

Hypothesis.

Explanation:

A hypothesis is a testable explanation for an event. For example, if you see a certain type of bird at your bird feeder, but never your neighbor's, you could come up with the hypothesis that that specific species of bird likes something that is present in your own birdseed, but not your neighbor's. This is easily testable by switching out different birdseeds and seeing which ones attract the birds, and serves to explain why the birds only appear at your bird feeder.

Animals that live in the desert question 15 options: hibernate in the winter are usually nocturnal usually have thin skin to absorb water includes camels. moose, and various reptiles

Answers

Animals that live in the desert are usually nocturnal as it helps in avoiding heat of the day.

What is nocturnal?

All desert animals are nocturnal as they have the ability to come in night only.

Many wasteland animals are nocturnal for the glaring cause that this enables them keep away from the warmth of midday. In scorching-warm elements of the world, being nocturnal is truely a very good move. Water conservation is likewise a thing of fending off the warmth of the day.

Thus explained.

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An actin gene in humans is

92% identical to the homologous

actin gene in mice. An actin gene

in humans is 80% identical to the

homologous gene in yeast. What

does this say about how long ago

these organisms had a common

ancestor?

Answers

An actin gene in humans is 92 identical to the homologous actin gene in mice. An actin gene in human is 80% identical to the homologous gene.

What sequencing shows the genetic homologies between organisms?

Orthologous sequences provide useful data in taxonomic classification and phylogenetic analyses of organisms.

The sequence of genetic difference can be used to draft the relatedness of organisms. Two organisms that are very near related are likely to show very similar DNA sequences between two orthologs.

Thus,  An actin gene in human is 80% identical to the homologous gene.

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Which types of cells contain two copies of each chromosome?

Answers

Answer:

cells in the germ linelineline

Explanation:

which go on to provide gametes, or egg and sperm cells.

what kind of science fair projects can I do that has two variables.

I will give brainliest to the best answer.

Answers

Answer:

Ethylene gas or pill bugs

Explanation:

The ethylene gas experiment is basically finding out if the plant hormone, ethylene, keeps leaves on the stem healthier. have a bag with a apple and a tree steam with any number of leaves on it then have the control with a tree stem that has the same number of leaves but no apple.

The Pill bug (rollie-pollies) experiment is try to determine whether or not pill bugs prefer a dry or damp environments.  

How does the human immune system initially respond to a pathogen?

Antibiotics are released by B cells to destroy the pathogen.
B cells release vaccines to destroy the incoming pathogen.
Lymphocytes recognize pathogens as antigens in the body.
T cells build immunity to the pathogen by releasing antibodies.

Answers

Answer:The immune system responds to antigens by producing cells that directly attack the pathogen, or by producing special proteins called antibodies. Antibodies attach to an antigen and attract cells that will engulf and destroy the pathogen.

Explanation:

Antibiotics are released by B cells to destroy the pathogen. The correct option is A.

What are antibodies?

Proteins called antibodies defend you when your body comes into contact with an unwelcome chemical.

Antibodies, which are made by your immune system, bind to these foreign chemicals and drive them out of your body. Immunoglobulin is another name for an antibody.

Proteins called antibodies are created by the immune system in response to infection.

They play a crucial role in the body's defense mechanism because they work to eliminate pathogenic organisms and prevent them from invading human cells.

In response to antigens, the immune system either produces cells that go after the pathogen directly or produces specialized proteins known as antibodies.

Antibodies draw cells that will engulf and eliminate the infection by binding to an antigen. B cells and T cells, two types of lymphocytes, are the immune system's primary cells.

Thus, the correct option is A.

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what is the term used to describe having a trait that can be passed on to subsequent generations that increases the organisms ability to survive in its environment and reproduce?

A) genetic variation
B) fitness
C) natural selection
D) adaptation​

Answers

Answer:

D) adaptation

Explanation:

An organism's ability to adapt to its environment is referred to as an adaptation. To describe changes in a population's DNA as a result of natural selection, the term can also be used.

I hope this helps you

:)

Answer:

The person above me is correct! The anser is D) adaptation.

Where does myosin get the energy to perform a contraction?.

Answers

Answer:

Energy Supply for Muscle Contraction. Energy for the release and movement of the myosin head along the actin filament comes from adenosine triphosphate (ATP). Recall from the sliding filament theory that the actin and myosin chains slide past one another. The binding of ATP allows the myosin heads to detach from actin

Explanation:

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