Answer:
The peppered moth
Explanation:
''The peppered moth is an evolutionary instance of directional colour change in the moth population as a consequence of air pollution during the Industrial Revolution.''
PLEASE PLEASE HELP
1. You are given a cell with four chromosomes. Explain what the cells look like in box A and in box B for a chromosomes in melosis. 2. How many chromosomes are in each of the gametes above? 3. When, during meiosis, do cells become haploid? Meiosis I or Meiosis II 4. Explain where in the diagram crossing over can occur. Time Att
Answer:
Explanation:
kmferkl;jeiwohjnlwkkihebfkj, dks.wheryjkemnf
Which of the following is true about natural selection? Choose 1 answer:
Answer:
It can only act on traits that are heritable and show variation.
Explanation:
For natural selection to act on a trait, there must already be variation for that trait. In addition, the trait must be heritable, or able to be passed from parent to offspring.
PLEASE HELP IM GONNA FAIL
Answer:
Chitin
Explanation:
What has to happen befor a cell can divide?
A: DNA has to double
B: DNA has to unwind
C: Chromosomes need to form
D: None of the above
Answer:
A: DNA has to double
Explanation:
In the process of every cell division, the cell must double "replicate" its chromosomal DNA in the process.
A large bottle with a layer of mud on the bottom is filled with pond water. Several fish and some green plants are then added and the bottle is made airtight.
The living and nonliving contents of this bottle make up
A biome
A population
А
B
с
An ecosystem
D
A species
Answer:
Ecosystem
Explanation:
The living and nonliving contents of the bottle above mentioned make up a particular type of ecosystem.
What is an ecosystem?An ecosystem is a given geographic sector or area where biotic and abiotic factors interact together.
The living forms (biotic factors) of an ecosystem form the community.In conclusion, the living and nonliving contents of the bottle above mentioned make up a particular type of ecosystem.
Learn more about ecosystems here:
https://brainly.com/question/26551655
#SPJ2
What is the ultimate purpose of the nuclear reaction in a nuclear power plant
Answer:
I heats water to produce steam thar spins a turbine.
when the carbon dioxide increases, the_______ increases
Answer: global warming increase
Look at the diagram and answer the questions
please be quick
PLEASE HELP!!!
In the space below, discuss some of the advantages and disadvantages of asexual and sexual reproduction. Compare and contrast individuals that are sexually and asexually reproduced. Use complete, meaningful sentences to explain the information you give as your answer.
Answer:
The advantages of sexual reproduction:
produces genetic variation in the offspring
the species can adapt to new environments due to variation, which gives them a survival advantage
a disease is less likely to affect all the individuals in a population
In asexual reproduction there is only one parent. The offspring are clones of the parent and each other.
The advantages of asexual reproduction include:
the population can increase rapidly when the conditions are favourable
only one parent is needed
it is more time and energy efficient as you don't need a mate
it is faster than sexual reproduction
The disadvantages of sexual reproduction:
time and energy are needed to find a mate
it is not possible for an isolated individual to reproduce
The disadvantages of asexual reproduction include:
it does not lead to genetic variation in a population
the species may only be suited to one habitat
disease may affect all the individuals in a population
Explanation:
¿el significado de comedia?
Answer:para hacer reír a la gente y hacer brillar su día
Explanation:
Gamma rays are formed on Earth by natural
radioactive decay, nuclear explosions, and _?_ in
thunderstorms.
Answer:
lightening
Explanation:
its lightening
ASAP Help Please!! Which of the described compounds is required for cheese making?
O Alcohol
O Sodium bicarbonate (baking soda)
O Lactic acid
Gluten
what is the perimeter of a triangle?
Answer: P= a+b+c
Explanation: :)
which two waves lie at the begginning and end of the electromagnetic spectrum?
Answer:
radio waves and gamma rays
Explanation:
On one end of the electromagnetic spectrum are radio waves, which have wavelengths billions of times longer than those of visible light. On the other end of the spectrum are gamma rays
give two reasons why humans need a balanced ecosystem
Answer:
us humans need a balanced ecosystem because its what keeps us alive. when having a balanced ecosystem we have cleaned water, purified air, maintained soil, regulates our climate, recycles nutrients, and provides us with food.
The two reason why human required the balanced ecosystem should that it keep alive also it have the cleaned water.
What is balanced ecosystem?
A balanced ecosystem refers to the habit which can be substainable. It comprise of the plants, animals, microorganism that should be based on each other and also with the surroundings. It should exhibited the resourceful energy and the material cycling.
Therefore, The two reason why human required the balanced ecosystem should that it keep alive also it have the cleaned water.
Learn more about ecosystem here; https://brainly.com/question/18167856
most cells underego apoptosis if their dna is damaged. How can this be beneficial to an organism? someone pls help
Answer:
It prevents the cell from passing on those defects to other cells through DNA replication in cell division. By self destructing before it gets the chance to divide, whatever problem the cell had ends right there and doesn't propagate in the organism.
Which of these contains chlorophyll and is where photosynthesis takes place. Found in plant cells only.
Answer:chloroplasts
Explanation:That would be the chloroplasts and it is also only found in plants
please help me with this homework problem!!
Answer:
the last one. Tt and tt
Explanation:
the answer is Tt and tt because
whats the definition of dura matter
Answer:the tough outermost membrane enveloping the brain and spinal cord
Explanation:
Hi there!
Dura matter is a thick membrane made of dense irregular connective tissue that surrounds the brain and spinal cord.. It’s also the outermost of the 3 layers of membrane called the meninges that protect the main nervous system. The nervous system has 2 main parts.
3. Cardiac muscle cells make up which type of muscles?
(5 Points)
O A. Voluntary
B. Smooth Muscle Cells
C. Skeletal Muscle Cells
O D. Involuntary
Explanation:
voluntary muscles are ones that work without you having to think about it..example heart, lungs. part of the APT system...Autonomic ...
Assignment
Active
Writing About a Factor that Decre
Describe an environmental factor that could
influence natural selection and decrease genetic
diversity. Pick a specific example to illustrate your
point
Answer:
camoflauge and predation, say that a bird likes to eat a species of insects. some of the insects are green and others are black. since the bird will easily spot the black ones first against a green leaf, the black insect population will die out, and only green insects get to reproduce and in turn only produce green insects. this decreases the frequency of genes that make them black
Explanation:
EARTH SCIENCE PLEASE HELP!! WILL MAKE BRAINLIEST
explain the importance of earthworm
HOPE IT HELPS
Lung cells obtain sodium ions, and chlorine ions from the adjacent blood vessels by which process?
Answer:
Not sure about the sodium but you might be referring to the Chloride Shift in the lungs.
Explanation:
PLEASE HELP ME
Factors that limit one population in a community may also have an indirect effect on another population.
TRUE
FALSE
Answer:
true
Explanation:
the statement is true
Please help if this is correct and If you know more information I can add.
Answer:
Yes that is correct i think
Explanation:
☝︎sorry I didn’t find science.
ANYWAYS-
1. Could the extinction of lions affect the grass population? Why or why not. EXPLAIN PLS（╹◡╹）♡ in a sentence to be specific ^^
What happen to the brain and the brain cavity?
Answer: OK so The ventricles of the brain are a communicating network of cavities filled with cerebrospinal fluid (CSF) and located within the brain parenchyma. The ventricular system is composed of 2 lateral ventricles, the third ventricle, the cerebral aqueduct, and the fourth ventricle (see the images below).Survival in untreated hydrocephalus is poor. Approximately, 50% of the affected patients die before three years of age and approximately 80% die before reaching adulthood. Treatment markedly improves the outcome for hydrocephalus not associated with tumors, with 89% and 95% survival in two case studies
hope this helps have a awesome night/day❤️✨Explanation:
Answer:
cranial cavity
The cranial cavity, also known as intracranial space, is the space within the skull that accommodates the brain. The skull minus the mandible is called the cranium. The cavity is formed by eight cranial bones known as the neurocranium that in humans includes the skull cap and forms the protective case around the brain.
Explanation:
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
Answer:
competition
Explanation:
An ecological community is a naturally occurring group of native plants, animals and other organisms that are interacting in a unique habitat. Its structure, composition and distribution are determined by environmental factors such as soil type, position in the landscape, altitude, climate and water availability(Department of Agriculture).
A climax community refers to the last stage of ecological succession in which the community remains relatively unchanged unless it is destroyed by events such as fire or human interference.
Competition between species in the same habitat is an important biotic factor in discussing ecological succession and the emergence of climax communities. Competition leads to a drop in the diversity of species in a given ecosystem because the dominant species live on and reproduce while the other species die off.
10. Wei saw a special type of plastic that would melt and become a liquid when it was placed in the sun, but it would not melt when placed under a desk lamp. Why does light from the sun melt the plastic when light from the desk lamp does not? Because the plastic can take in energy from the light from the sun but not from the light from the lamp. b Because light from the sun carries heat molecules, and light from the desk lamp does not. Because light from the sun pulls energy out of the plastic, and light from the desk lamp does not. Because the sun gives off a type of light that carries erlergy, and light from the desk lamp does not.