Answer:
variation, inheritance, selection and time
Substances change states when they move between solid, liquid, and gas forms. when a substance changes from one state of matter to another, its mass
this is science by the way
3. Explain why the frequency of the tusklessness trait is increasing in the African elephant population.
Justify your answer using the principles of natural selection.
Claim : The frequency of tusklessness is increasing in the African elephant population. Changes like this
overtime is called Evolution and is occurring by
It is a process that has these principles:
a.
The frequency of tusklessness is increasing in the African elephant population because evolition which occurs by means of natural selection selects elephants that are tuskless for survival.
What is natural selection?Natural selection is a process by which organisms with featuresthat make them best suited for survival in their environment are selected for survival.
These traits are present in these organisms as a result of evolution.
The traits that are naturally selected enhances the ability of the organism to survive.
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2) For each of the following write whether it is homozygous dominantheterozygous or homozygous recessive AA TT
a protein produced by the mutated sequence will differ in what?
By changing a gene's instructions for making a protein, a variant(mutated protiens) can cause a protein to malfunction or to not be produced at all. When a variant alters a protein that plays a critical role in the body, it can disrupt normal development or cause a health condition.
6. Describe two things that might affect the validity of findings in this experimental design:
Answer:
1: Depends on which science project and experiment: Physical science: THE FORCES ACTING UPON AN OBJECT IN THE WRONG WAY. Natural science: Atmosphere, soil temperature humidity.
Explanation:
The biological information stored in organisms is in the sequence of nucleotide bases (i.s., A, T C and G) in DNA molecule. true false
Answer:
True
Explanation:
DNA: ATCG
RNA: UTCG
When it is winter in North America, it is summer in South America. Explain why this happens. Read the assignment carefully and make sure you answer each part of the question or questions. After you've written your response, go back and read it again to make sure your thoughts are clear.
Answer:
It is also important to remember that the seasons in South America are the reverse of that in the Northern Hemisphere, meaning that summer falls between December and February and winter between June and August.
The further north you are on the continent, the closer you are to the Equator (the country, of course, but also the Equator line). The temperature variations between the different months of the year are therefore smaller and smaller as you go up. In other words, each seasons of South America depends on its country.
why do plants grown with less light grow taller than the ones grown with light
Hormones released down the stem from the tip of the stem inhibit stem expansion when exposed to light. The hormones do not impede stem growth in the dark. Seeds growing in the dark rely on chemical energy stored in their cells (lipids, proteins, and carbohydrates) to fuel their growth.
Topic: March PhenomenonAnswer:
The light slows stem elongation by sending hormones down the stem from the tip of the stem.
Explanation:
Hormones do not slow stem elongation in the dark. Dark-grown seeds rely on the chemical energy stored within their cells (lipids, proteins, carbohydrates) to power their growth.
referenced from https://stemeducation.nd.edu/
Crossing individuals with similar characteristics
so that those characteristics will appear in their
offspring is called
a. inbreeding
b.hybridization
c. recombination.
d. polyploidy.
Answer:
a. inbreeding
Explanation:
Breeding two closely related species will give offspring with similar characteristics as the parents.
Explain how Direct Harvesting has contributed towards the loss of
biodiversity.
Fleas living on a dog are examples of what symbiotic relationship? .A .mutualism .B competition .C parasitism .D predator-prey
Which birds of prey are the most common and are considered fierce hunters.
The most common birds of prey that are considered fierce hunters include eagles, hawks, and falcons.
Predating BirdsPredating birds or birds of prey are species of birds whose survival-hood depends on them hunting down other animals for food.
Birds of prey are usually equipped and well adapted to hunting their prey. These adaptations include well-developed claws and beaks, a special swooping ability, very sharp eyesight, and so on.
Examples of birds of prey include eagles, hawks, and falcons.
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what's the answer please
1. Taking in useful substances
2. Oxygen
3. Carbon dioxide
4. Oxygen and Carbon dioxide
5. C since there are more than a living organism
3. (b) How does crossing over increase the variation in the gametes (and hence the offspring)?
Answer:
During crossing over, part of one chromosome is exchanged with another. The result is a hybrid chromosome with a unique pattern of genetic material. Gametes gain the ability to be genetically different from their neighboring gametes after crossing over occurs.
What do our body get from processing and digesting food?
Answer:
Proteins, fats, carbohydrates, vitamins link, minerals link, and water
Explanation:
They are nutrients in which everyone needs, your digestive system breaks nutrients into parts small enough for your body to absorb and use for energy, growth, and cell repair.
Answer:
Explanation:
nuitrent and fat
Magnifying Living Things
In this activity, you will look at six samples from living things under a magnifying glass.
Estimated time to complete: 20 minutes
You will need these materials:
magnifying glass (At least 10× magnification)
a leaf
a twig or tree bark
the skin on your hand
a flower
a strand of your own hair (or a sample of pet hair, if you have a dog or cat)
a sample of your choosing
Data Collection
In this activity, you will magnify samples from the five living things listed below. You must also include one sample of your own choice. Your sample could be from a plant, animal, human, or anything that is living.
a leaf
twig or tree bark
the skin on your hand
a flower
a strand of hair
a sample of your choosing (Grass)
Part C
Part C
Did you observe any other characteristics of life in your samples?
Part D
For each of your samples, research how the structures you observed under magnification help the organisms carry out basic functions of life. Write your findings in the space provided.
Answer:
"bark" (and any subsequent words) was ignored because we limit queries to 32 words
Explanation:
-_-
What would happen to a compass if earth's magnetic field were to invert?
a.
the compass would point in the opposite direction.
b.
the compass would oscillate between magnetic north and magnetic south.
c.
the compass would not be affected.
d.
the answer depends on the strength of the magnetic field.
Contains the code that guarantees the accurate ordering of the 20 amino acids in all
proteins made by living cells.
A. Nucleotides B. Gametes C. Meiosis D. Mitosis
Humans currently rely on fossil fuels for the majority of their energy needs. A. Why can't humans always use fossil fuels for energy? (5 points) B. What two steps would you take to conserve fossil fuels? (4 points) C. What two impacts do fossil fuels have on the environment? (6 points)
Answer:
I am going to answer the questions in one brief summary of fossil fuels.
Fossil fuels are non-renewable, meaning one day they will run out.
Fossil fuels are reliable, meaning rain or shine we can use them.
Fossil fuels emit greenhouse gases, causing our world to warm up.
what is the name of one of the lower chambers of the heart that receives blood from the upper chambers and pumps it into the arteries?
Answer:
Right Ventricles
Explanation:
Right ventricle receives blood from right atrium and pumps it into pulmonary artery.
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Part One: Graphic Organizer
For this assignment, you will take a close look at your research, and then summarize ideas about the question: Should we build roads in the rainforests?
1. Use the table to record the effect of building roads in the rainforest. Consider the effects on each group or part of Earth affected.
2. For each group or part that is affected, decide whether the effect of building the roads is positive or negative. Record that information in the chart.
DONT ANWSER IF U DONT KNOW
I AM NOT LOOKING FOR A PARAGRAPH
Road building has both positive and negative effect on the rainforests.
What was impact of road building on rainforest?Road building has a range of direct impacts on rainforest ecology.
Negative effect of road construction is that In wet tropical environments, the cut-and-fill operations associated with road construction can impede streams, increase forest flooding, and drastically increase soil erosion.
Positive effect on road construction that we get clear route map of the rainforest and we can easily move within rainforest.
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What is overconsumption? How does overconsumption mirror overpopulation?
True/False: All keystone species are animals.
Which of the following is an example of a consumer? A. water B. Plant C. Rock D. Fish
Answer:
Fish
Explanation:
Fish eat they don't produce their own food.
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In an area of 3 square miles there are 27 bears. What is their population density?
A. 9 bears / square mile C. 24 bears / square mile
B. 81 bears / square mile D. 30 bears / square mile
Answer:
9 bears per square mile
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Gabriel is performing an experiment in which he is measuring the energy and work being done by a ball rolling down a hill. Which statement best describes Gabriel’s measurements?
They will remain constant.
They will both be recorded in joules.
They will both be recorded in hertz.
They will involve compressions.
Answer:Its A
Explanation:Edge
Gabriel is performing an experiment in which he is measuring the energy and work being done by a ball rolling down a hill. The statement they will both be recorded in joules is best describes Gabriel’s measurements. Correct Option is 2.
Energy and work are both physical quantities measured in joules (J) in the International System of Units (SI). In this experiment, Gabriel is measuring the energy and work associated with the ball rolling down a hill, and both measurements will be expressed in joules. Energy represents the capacity to do work, and work is the transfer of energy that occurs when a force is applied to move an object over a distance. Both energy and work are directly related and are measured in the same unit, joules, which is a measure of energy or work.
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I REALLY NEED HELP ASAP! Can someone please help me quickly? Because it's due tonight at 5:30 pm
Answer:
If I were brandon I would call my parents or a trusted adult and ask them to pick me up.
Explanation:
The situation is that Brandon is coming back from practice and usually would ride his bike . But it is raining. Options: Ride home. Call parents or trusted adult. Or ask friends for a ride. The possible outcome? He could get sick. It may lightning and that's very dangerous. Someone could take him. Values? He can just go ahead and go home without worrying. I would decide to call someone. It is the safest thing to do. Call the parents or trusted adult.
Suggest how damage to the air sacs can cause the symptom of breathless when exercising.
After a forest fire, which type of organisms will begin secondary succession?
Which of the four characteristics of
populations is the summary of the
amount of individuals at each age?
A. Growth Rate
B. Age Structure
C. Population Density
D. Age Span
The summary of the amount of individuals at each age is the age structure. That is option B
What are the characteristics of population?Population is defined as the group of individuals or animals that are living in a particular geographical location.
The characteristics of population include the following:
growth rate,Age structurepopulation density andAgeThe amount of individuals at each age is the age structure of the population.
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