Answer:
Please see below
Explanation:
The reason behind this is the phenomenon of natural selection. The deleterious mutations do not provide a survival advantage so they are selected against, which results in these type of mutations to not be passed on - rather, they eventually get eliminated from the population.
SULIS
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10) Check three activities/characteristics that would help in becoming a successful biologist.
video game expertise
I love of novels
U political motivation
observation
curiosity
epicureanism
o determination
Answer:
Observation
Curiosity
Determination
Explanation:
A biologist is a scientist that specializes in the study of biology or life generally. However, to become a successful biologist as stated in the question, the three mentioned characteristics needed are:
1. Observation- being an observer is key to becoming any scientist, including a biologist. Observation is the foundation of a scientific method i.e. it begins the process. Hence, a biologist must have good observation skills in order to thrive.
2. Curiosity- Curiosity refers to the ability to want to know what's going on. It's being inquisitive in order to learn new things. Asking questions is equally an important part of a scientific method as it determines the experiment. The question asked is what creates the experiment. Hence, being curious is a good quality for an intending biologist.
3. Determination: Being determined is not a quality only a biologist should possess. Determination is a must for any individual in any field. It is the ability to carry on irrespective of setbacks, which are inevitable.
HELP........................................
Answer:
D. If an earthworm is given a choice, it will move toward darkness rather than light.
Explanation:
A hypothesis must be a declarative statement that can be tested. That is the only one that follows the guidelines for a good hypothesis.
Which one of the following statements is false? Select one: a. The ovaries are almond shaped. b. The ovaries are suspended from the anterior aspect of the broad ligaments. c. The ovaries lie in the ovarian fossa. d. The ovaries receive blood from the ovarian and uterine arteries.
Answer:
d. The ovaries receive blood from the ovarian and uterine arteries.
Explanation:
All the other options are correct except option D.
The ovary is only supplied with oxygenated blood from the ovarian arteries. The uterine arteries supply blood to the uterus alone.
How has modern humans
ecological footprint caused a Tragedy of the Commons?
Answer and Explanation:
The ecological footprint is an indicator of sustainability at an international level that integrates all the human impacts over the environment, considering the necessary resources and the generated residues to maintain the modern consumption model. It refers to the productive ecological surface needed to produce resources to consume by one person and to absorb the residues that are produced.
By constant contamination and indiscriminately use of natural resources the impact generated by human in the earth is unmeasurable.
The tragedy of the commons refers to how some people, acting by their own needs or interests, may exceed the use of natural resources, affecting their population and, therefore, other users. These individuals over explode resources thinking only in the present, but not in the future.
The ecological footprint as an indicator makes visible the unsustainable lifestyle of human beings, especially those of the first world. If this lifestyle would project to the rest of the world equally, natural resources would completely disappear. More developed countries are over contaminating and over exploding natural resources, affecting other countries of the third world, and even themselves.
Marine biologist, Igor Vladimir, is conducting research on the 25-40 cm in diameter, Aurelia aurita, commonly known as the moon jellyfish. He is trying to determine how much water is needed to propel the translucent jelly, that is capable of only limited motion, and drifts with the current, even when swimming. Which of the images, A or B, most likely represents a measurement this scientist made? Justify your answer.
Answer:
Image A
Explanation:
The most likely image that represents the measurement of the scientist would be image A.
Image A indicates the shape that water would form in a tube. Due to the adhesive force between the molecules of water and the wall of the tube, the surface of water usually forms a concave shape in a tube. Hence, the lower meniscus of the water is usually read in a tube which is what image A represents.
what is vector and examples of them
Your question has been heard loud and clear.
A vector is basically a quantity that has both magnitude and direction.
However , scalars only have magnitude , but vectors possess both magnitude and direction.
Examples of vectors are : Velocity , displacement , acceleration.
Thank you
Sam saw something terrifying. His muscles tensed, he began breathing more rapidly, and he began to sweat. Having taken introductory psychology, Sam knew that the ________________ division of his __________ nervous system had been activated. 0 points sympathetic; limbic parasympathetic, autonomic somatic, peripheral central, sympathetic
Answer:
sympathetic and autonomic
Explanation:
Hello there! :D
Firstly, I want to say that some of the written out answers look incomplete. I am going to try my best to answer this question and give you context so that you can choose the best answer choice! :)
There are two main systems within the boundaries our nervous system:
The CNS (central nervous system) and the PNS (peripheral nervous system).
Struturally,
the CNS constistues the brain and spinal chord,
the PNS consistutes your nerves and ganglion.
Functionally, the CNS recieves messages from the PNS and sends messages to the PNS. Think of the CNS as the control center, and the PNS as the reactor.
The PNS has two systems within it, the somatic nervous system, and the autonomic nervous system. The somatic nervous system senses things consciously percieved (ie. eye sight, pain, taste) and the autonomic nervous system senses things unconsciously percieved and controled (ie. stress, anxiety, etc). The point being, you cannot control when it happens or stop the function of it consciously.
The autonomic nervous system holds two main systems, which would be the parasympathetic system and the sympathetic system. The parasympathetic system helps maintain your circadian rythmn, replenish energy, and relax your body. The sympathetic system is known as your "fight or flight" system. This system can be triggered by test anxiety, unsafe situations, and in any case where your life or emotional well being is being threatened.
My best answer for this question, in my opinion, would be the autonomic nervous system, and the sympathetic system. The sympathetic system deals with fear (fight or flight) and is controlled by the autonomic nervous system).
I hope this helps you and you have a wonderful day,
Kai xx
What do you think plants need to stay healthy
Answer:
water soil and sun
Explanation:
Answer:
Explanation:Plants need air, light, warmth, water and nutrients to be healthy. If they are healthy, they can continue making their own food through photosynthesis.
Computer modeling gives scientists the ability to study the interaction of complicated systems
without actually conducting an experiment. Is this
True or false.?
Answer:
it is true
Explanation:
Computer modelling can be defined as the computerization of mathematical models in order to understand the dynamics of biological, physical, and chemical systems. The computerized simulations can be run by using programs that have into account the parameters of the system and thus make predictions that resemble natural experimentation procedures. Examples of computer modelling include, among others, the potential distribution of invasive species, prediction of changes in the genetic structure of a given population over n generations, etc.
2. Empirical evidence is based on opinion and personal experiences. a. true b. false
Answer:
false
Explanation:
"Empirical" means "based on observation or experience," according to the Merriam-Webster Dictionary. Empirical research is the process of finding empirical evidence. If there are flaws in the way that empirical data is collected, the research will not be considered valid.
Which of the following questions cannot be answered by science?
A. Why do muscles become sore after exercise? B. What rights should animals have?
C. Why does pizza dough rise?
D. Why do birds migrate?
How are cells interdependent on each other?
Answer:
Cells interdependent to form organization in multicellular organism to make tissue, organ, organ system and body.
Explanation:
Along the evolution process, living beings are getting particularly advanced in their complexity. The essential creature to show up was a unicellular form.
In multicellular organisms, cells came that together to make tissues, which collected together to shape organs, further into the organ system, at this level cell depends on one another as the complexity increases with organization level.
Which of these best fits the box labeled A?
A. Ancient bacteria
B. Primitive plants
C. Ancient organisms
D. Reproducing molecules
The term that best fits the box labeled is reproducing molecules (Option D). It is a prerequisite for life.
What are organic reproducing molecules?Organic reproducing molecules are specific biomolecules that are capable of self-replicating on their own.
The emergence of organic reproducing molecules such as nucleic acids (either DNA or RNA) is a prerequisite for life.
Another prerequisite for life is the emergence of macromolecules having catalytic activities (e.g., ribozymes or enzymes).
Learn more about reproducing molecules here:
https://brainly.com/question/1619735
Answer:D
Explanation:
cause we like dat
Choose all the answers that apply.
The cell wall
is thick and rigid
is made of cellulose
does not allow the transport of chemicals
is only present in animal cells
supports and protects the cell
Answer:
is made of cellulose.
Explanation:
only plant cell have cell walls.
PLEASE HELP! WILL GIVE BRAINLIEST! Are traits controlled by dominant alleles more common than traits controlled by recessive alleles? Please explain
Answer:
Dominant alleles
Explanation:
Dominant means more of, and recessive means less in simpler terms
Answer:
A widespread misconception is that traits due to dominant alleles are the most common in the population. While this is sometimes true, it is not always the case. For example, the allele for Huntington's Disease is dominant, while the allele for not developing this disorder is recessive
Explanation:
I hope this helps you!!
What were some possible problems with the theory of spontaneous generation that led Louis Pasteur
to challenge its validity?
Answer:
aFrancesco Redi disproved spontaneous generation for large organisms by showing that maggots arose from meat only when flies laid eggs in the meat.
What is the difference between science and trickery?
Science is- by definition understanding the natural and social world following a systematic methodology based on evidence. Proof is needed, experiments take place etc. Whereas trickery is simply the act of deception, can be for multiple reasons.
However trickery exists in the natural world too in the form of animals using tricks to make themselves look frightening or like another animal. In both cases you cannot believe what you see. The difference would probably be that the tricks science plays can be uncovered by experiments and other observations, but im not sure.
Your question has been heard loud and clear.
Science is basically the logic that explains why things happen and how they occur the way they are , especially with natural phenomena. It is solely used for beneficial purposes so that humans can advance and develop themselves through science.
Trickery is the art mastered by people who just live by using shortcuts and making loopholes out of everything to bypass consequences. It is indeed the complete opposite of science because trickery is not used for improvement like science , but it is used to bring others down while the trickster rises. It is not beneficial for development and advancements. Trickery is however useful to the person using it , and science is useful to the person using it and to the people , but trickery is only beneficial for the person using it , unlike science.
Thank you
factor that changes as a result of changes in other variables
Answer:
dependent variables 2.independent variable .Explanation:What are viruses considered to be non-living?
Answer:
Viruses are often considered non-living because outside of a living cell, they do not exhibit the characteristics of living organisms: they are basically like crystals. But within a living organism, they become activated and are able to carry out life's activities like replication (a form of reproduction).
Answer:
Viruses are not made up out of cells they cant keep them selves in a stable state they dont grow and they dont make there own energy. So they are considered non-living.
Explanation:
Cells are living things in the body a virus is what the cells are trying to defeat and because there are no cells in viruses the cells in our body is what fights off the virus cause they are alive and processing in our body.
Experiment #1 Question: Does penicillin prevent infection? Hypothesis: If the medicine prevents infection, then the medicine will prevent the growth of bacteria that cause infection. Experiment: Leo placed two circles of paper in a Petri dish (something used for growing bacteria). One circle of paper was soaked in penicillin. The other had nothing on it. He poured a liquid filled with bacteria into the Petri dish. Both circles of paper were placed in the Petri dish about 3cm apart. At the end of the experiment, a circle with a radius of 2cm formed around the circle of paper soaked in penicillin. There were no bacteria growing in the 2cm circle. No change had occurred around the other circle of paper. The bacteria were growing well.
A. What was the independent variable?
B. What was the dependent variable?
C. What was the control condition?
D. Was there a constant variable?
Answer:
A- presence or absence of penicillin
B- growth of bacteria
C- Petri dish,bacteria, penicillin, paper
D- circle of paper without penicillin
Which statement accurately describes the outer planets
Answer:
the outer planet have thin atmosphere
Answer: D
Explanation:
PLZ ANSWER SOON What did J.J. Thomson’s experiments with cathode-ray tubes imply about the mass of an electron?
-Electrons are many thousand times larger than the nucleus and negatively charged.
-Electrons are many thousand times smaller than the nucleus and positively charged.
-Electrons are many thousand times smaller than the nucleus and negatively charged.
-Electrons are many thousand times larger than the nucleus and possess no charge.
Answer:
Electrons are many thousand times smaller than the nucleus and negatively charged.
Explanation:
Electrons possess negligible mass and carry a negative charge.
If you would like FREE tutoring in chemistry or another subject, check out www.growthinyouth.org.
What are the three most important steps for writing a testable question?
Answer:
make two lists pick one item from each list that interests you most.choose an appropriate testable question format and fill in the blanks with the appropriate variables.
Answer:
A testable question is one that can be
answered by designing and conducting
an experiment.
Which organs are found within the circulatory system?
Which chemical damages the protective ozone layer?
A. Greenhouse gases
B. Carbon dioxide
C. Nitrogen
D. Chlorofluorocarbons
Answer:
D. Chlorofluorocarbons
Explanation:
it is recommended for most adults that carbohydrates make a 45 through 65% of their diet, proteins make up 10 to 35% of their diet, in fact make a 20 to 30% of their diet. Does deb die at me these recommendations support your statement with calculations.
Answer:
what is the percentage by mass of oxygen carbon hydrogen nitrogen phosphorus
Answer:
No
Explanation:
No. She is currently eating 128.52 calories each for protein, 289.17 calories from fat, and 1,413.44 calories from carbohydrates. This means that she is consuming 6.6% of her diet from protein, 14.9% of her diet from fat, and 73.2% of her diet from carbohydrates.
A student observed how many times bees visited each of four different colored roses. What would be the BEST way to visually communicather of these observations?
which nitrogenus based is found in Rna but is not found in Dna
Answer:
Uracil
Explanation:
Answer:
Uracil (U)
Explanation:
The nitrogenous bases in DNA are:
- Adenine
- Thymine
- Guanine
- Cytosine
The nitrogenous bases in RNA are:
- Adenine
- Thymine
- Guanine
- Uracil
When we compare the two lists, we see that both DNA and RNA have Adenine, Thymine, and Guanine. However, we can also notice that only RNA has Uracil. Plus, only DNA contains Cytosine.
Therefore, the nitrogenous base found in RNA, but not DNA is uracil.
Without red marrow, bones would not be able to ________. Group of answer choices a. store phosphate d. move like levers c. make blood cells b. store calcium
Answer:
My answer in the question is store calcium
Explain the importance of DNA Describe where it is found in the cell Summarize steps to extracting DNA (You need all 4 steps- how it is done and why it is done) Include any safety precautions and PPE that will need to be followed or worn and why Should be in a logical order. Please and thank youuuuuuuuuuuuu
Answer:
deez nuhtzz
Explanation:
en yo mowth