The hair on Jamal’s arms is standing straight up.
What most likely explains why his hair is behaving this way?
He is in a cold area.
He is sweating.
He is in danger of bacteria.
He is receiving information for touch.
Answer: A
Explanation: Because I said so.
Mitosis produces cells that have a ___ number of chromosomes, while meiosis produces cells that have a ___ number of chromosomes
Answer:
Mitosis: 46
Meiosis: 23
Explanation:
Which statement describes a difference between a jellyfish and a frog?
A jellyfish lacks vertebrae, whereas a frog has a spinal cord.
A jellyfish cannot reproduce sexually, but a frog can.
A jellyfish makes its own food, whereas a frog is a heterotroph.
A jellyfish is a prokaryote, whereas a frog is a eukaryote.
Answer:
A
Explanation:
The model below shows the genetic material of a cell during a phase of mitosis.
Which of these models shows the same cell in the phase immediately before this phase?
Answer:C
Explanation:
Which of the following is NOT a common element in the human body? Select all that apply.
Answer:
Helium and carbon dioxide
The elements that are not common in human body are carbon dioxide and helium. The correct options are B and E.
What are elements?A chemical element is a type of atom with a specific number of protons in its nucleus, including the pure substance made up entirely of that species.
Chemical elements, unlike chemical compounds, cannot be broken down into simpler substances by any chemical reaction.
The human body is made up of only six components: oxygen, hydrogen, nitrogen, carbon, calcium, as well as phosphorus.
Sulfur, potassium, sodium, chlorine, and magnesium make up about 0.85% of the remaining mass. All 11 of these elements are necessary.
Carbon dioxide and helium are elements that are not found in the human body.
Thus, the correct options are B and E.
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What are some ways the government can help reduce greenhouse gases
Answer:
installing a programmable thermostat to replace your old dial unit or sealing and insulating heating and cooling ducts
Explanation:
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how does comparative embryology support the theory of evolution?
Answer:
Comparative Embryology provides strong support for the hypothesis that Darwin put forth to explain the apparent similarities and differences he saw among different species, i.e. that these species are the result of an evolutionary process involving selection (now known to be gene based) for structural.
Explanation:
Explain the difference between independent variables, dependent variables, and control variables.
Answer:
Independent: Purposely altered
Dependent: Changes with respect to the independent being altered
Controlled: Never changes
Explanation:
An independent variable is a variable in which does not rely on other pieces/variables of an experiment to assume a value. In other words, it does not change when other variables change. However, it can be changed intentionally by the scientist.
A dependent variable is a variable in which its change in value relies on other pieces/variables of an experiment to assume a value. So, if the indeoendent variable is changed, the dependent variable will change as well. The opposite is not true though - if the dependent variable changes (for whatever reason), the independent variable hasn't necessarily been changed.
A controlled variable is a variable that stays CONSTANT throughout an experiment. It is never changed, and nothing will change it. An example of a control variable is the number of participants in a study: no more participants are being added, and no participants are being removed. The number of participants remains STATIC throughout the study.
Suggest why cells die if the mitochondria do not fuction
Answer: Widespread damage to mitochondria causes cells to die because they can no longer produce enough energy. Indeed, mitochondria themselves unleash the enzymes responsible for cell death.
Explanation:
An example of a non-specific intemal defense is:
Will give BRAINLIEST
Answer:
Mucous membranes
Explanation:
The epidermis (external) and mucous membranes (internal) represent the first non-specific barriers that act against invading pathogens and harmful substances. The mucous membranes separate the external environment surrounding the mucous cells from the body's internal environment. These membranes are considered as selectively permeable barriers that act to prohibit the passage of pathogenic microorganisms (e.g., bacteria) and harmful agents (toxic chemical substances).
What is one physical adaptation of sunflowers?????????
Answer:
Sunflowers require full sun exposure, they are heliotropic, which means that the movement of the flower is towards the direction of the sun.
1. Lymph fluid contains all but
a, red blood cells
b. hormones
c. digested nutrients
d. salts
Tectonic plate motion can directly result in _____.
volcanic eruptions
deforestation in the Amazon basin
the extinction of species
global warming
Answer:
Tectonic plate motion can directly result in VOLCANIC ERUPTIONS.
Many volcanoes erupt due to movement in tectonic plates, and furthermore, most volcanoes are located adjacent to tectonic plates. (For example, the ring of fire around the Pacific Plate)
Let me know if this helps!
This model shows the process of protein synthesis including transcription and translation. What is the best explanation for what is
occurring at the arrow (translation)?
Answer: The answer is C
Explanation:
During the process of protein synthesis, the best explanation for what is occurring at the arrow is as follows:
The codon on the mRNA pairs with the anticodon on the tRNA which transfers amino acids into the proper sequence to form a protein.What is Protein synthesis?Protein synthesis may be defined as a biological process through which cells make proteins in order to accomplish metabolic functions that facilitate the survival of living organisms. The process of protein synthesis terminates with the help of two stages. They are as follows:
Transcription.Translation.Transcription is the transfer of genetic instructions in DNA to mRNA in the nucleus. While the process of translation acquired the transfer of genetic instructions from the mRNA to the sequence of amino acids in order to form proteins. This takes place in the cytoplasm of the cell.
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What is the scientific name for a Burchell’s zebra?
Answer:
Equus quagga
Explanation:
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Question 20
0.5 pts
Which system is described below?
Function: Regulates body functions by chemicals (hormones)
Major Organs: Pituitary gland, Thyroid gland, Adrenal gland, Thymus, Pancreas
O Endocrine system
O Integumentary system
O Respiratory system
O Urinary system
Answer:
Endocrine system
Give an example of interspecific competition.
Which statement best describes these two molecules?
Answer:
What two molecules?
Answer: energy for life processes can be stores within chemical bonds of both molecules
Explanation: um if you are talking about the question on regents
'the two diagrams below represent a sugar molecule and a fat molecule that are used by living organisms. which statement best describes these two molecules?'
Harry had been learning about joints in one of his classes at school. On the way to the emergency room he tried to recall what types of tissues made up the different joints. He knew ligaments, tendons, and other connective tissues associated with joints often did not heal quickly. He wasn't sure whether it would better to have broken a bone or to have sprained something. Correctly match each tissue type to the sentence. Some of the words may be used more than once.
__________ is what makes up the war criage of synovial joints.
A symphysis is an amphithjoint where__________ joins adjacent bones
Epiphyseal platos are the growth plates of long bones which are made up of ___________ and are an example of a synchondriosis.
a. Dense regular conective tissue
b. hyallne cartilage
c. Dense irrregular conective tissue
d. fibrocartilage
Answer:
The correct answer is -
1. hyaline cartilage
2. fibrocartilage
3. hyaline cartilage
Explanation:
1. The hyaline cartilage covers the articular cartilage of the synovial joint that is translucent or clear as glass-like cartilage that has a firm consistency and a high amount of collagen.
2. A symphysis is an amphiarthrotic joint which is a fibrocartilagenous joint that joins with the adjacent bone. This is a very tough or strong tissue.
3. The growth plate of the long bone or epiphyseal plates are examples of synchondrosis,which is a hyaline cartilage composed tissue.
what is the molarity
Answer:
Hope its help you
if wrong then sry
Answer:
Explanation:
the number of moles of solute per liter of solution. molar concentration
Molarity (M) is the amount of a substance in a certain volume of solution. Molarity is defined as the moles of a solute per liters of a solution. Molarity is also known as the molar concentration of a solution. Explanation: To get the molarity, you divide the moles of solute by the liters of solution. Molarity=moles of solute liters of solution. For example, a 0.25 mol/L NaOH solution contains 0.25 mol of sodium hydroxide in every litre of solution.
HELP ASAP THIS IS MAJOR GRADE
Answer:ITS B GRAVITY PULLS AN INWARD FORCE!
Answer:
Answer A
Explanation:
Gravity keeps things on the ground meaning the gravitational force is going down.
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Which of the following will most likely decrease genetic diversity?
А increased reproduction
B selective breeding
C mutations
D immigration
Selective breeding dangers reduced genetic diversity can result in certain insects or diseases attacking, which could be quite devastating. Thus, option B is correct.
What is the cause of selective breeding in genetic diversity?Selective breeding can contribute to a large reduction in the genetic diversity of farmed populations, endangering long-term evolutionary progress and limiting populations' ability to adjust to environmental changes.
Unknowingly selecting uncommon illness genes as part of a desirable characteristic might cause difficulties with particular organisms, such as the high prevalence of deafness in Dalmatian dogs.
Genetic diversity is typically reduced by selective breeding, since only a few individuals are employed to produce enormous numbers of offspring. The population's survivability may be impacted by this.
Therefore, selective breeding will most likely decrease genetic diversity.
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What is an observational study? How is it different from a controlled experiment?
Answer:
Observational study is when you observe your subject and take more notes rather that writing down quantitative data. Meanwhile, a controlled experiment is more quantitative.
Explanation:
Explain the strengths and weaknesses of Lamarck's theory of evolution.
There is no experimental proof of the lamarckism. New organs are not formed in organisms by their wish or requirement. 3.It is not necessary that an the acquired characters transmit into new
Answer:
Weaknesses are traits may stay around for longer that what their needed and Strengths are we adapt to our needs.
Explanation:
Lamarckism, a theory of evolution based on the principle that physical changes in organisms during their lifetime—such as greater development of an organ or a part through increased use—could be transmitted to their offspring.
I took the quiz and said this, I got it it right!
Earth's seasons are caused by
A. Earth's orbit around the Sun
B. Earth's rotation around its axis
C. Earth's tilt
D. All of the above
Choose the correct answer.''
Answer:
B. Earth's rotation around its axis
Explanation:
Alleles: H=hearing h=deaf
Genotypes/Phenotypes: HH=hearing Hh=hearing (h carrier). hh=deaf
Below is how you would set up this problem: Fill out a Punnett square to help you answer the question.
H h
H __ __
h __ __
What percentage of offspring would be deaf?
25%
50%
75%
100%
Answer:
3/4 (3 out of 4) of the genotypes are deaf. 3/4 is also equal to 75%. So 75% of the offspring produced will be deaf.
Explanation:
The way the punnet squares work is the top allele on the left combines with the left allele on the top, the top allele on the left is combined with the top allele on the right, the bottom allele on the left is combined with the top allele on the left, the bottom allele on the left is combined with the top allele on the right. I hope this makes sense
How to write a discussion on macromolecules in a lab report
All organisms have names that
include
class and order
Family and location
order and family
genus and species
24. Which of the following best describes chromosomes? (1 point)
supercoiled strands of a DNA molecule
identical strands of a DNA molecule
segments of a DNA molecule
relaxed strands of a DNA molecule
Answer:
Chromosomes are supercoiled strands of a DNA molecule