Answer:
Strong volcanic eruptions and fires can temporarily change regional weather, cooling or heating the air, changing winds, or causing rain. Volcanoes, storms, and floods can kill marine animals directly, or cause long-term problems by depositing debris and affecting the temperature and salinity of water.
Explanation:
Some ways through which natural disasters could change an environment and change the selective pressure felt by a species are volcanic eruptions, wildfires, floods, droughts, storms, acid rain, etc.
What is Species?Species may be defined as the collection of organisms that can significantly reproduce with one another in nature in order to produce fertile offspring. It is the basic unit of classification and a taxonomic rank of an organism.
According to the context of this question, effective and long-lasting volcanic eruptions and fires can significantly change regional weather. Apart from this, actions like cooling or heating the air, and alterations in wind patterns and directions that typically cause rain also change an environment and change the selective pressure felt by a species.
Therefore, some ways through which natural disasters could change an environment and change the selective pressure felt by a species are volcanic eruptions, wildfires, floods, droughts, storms, acid rain, etc.
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Which of the following best describes the genetic complement in each
daughter cell at the conclusion of meiosis?
A. A haploid set of chromosomes that are a recombination of the
parents' chromosomes
B. A diploid set of chromosomes that are identical to the parents'
chromosomes
C. A diploid set of chromosomes identical to the other daughter cells'
chromosomes
D. A haploid set of chromosomes that are identical to the parents'
chromosomes
Answer:
A
Explanation:
Meiosis end in four daughter cells that are haploid and contain half the chromosomes as the parent cell and genetically different from the parent cell and from each other, so A would be the right answer.
A haploid set of chromosomes that are a recombination of the parents' chromosomes best describes the genetic complement in each daughter cell at the conclusion of meiosis.
What do you mean by meiosis?Meiosis is a special type of cell division of germ cells in sexually-reproducing organisms that produces the gametes, such as sperm or egg cells.
Moreover, meiosis is a type of cell division that reduces the number of chromosomes in the parent cell by half and produces four gamete cells.
Meiosis is important for three main reasons: it allows sexual reproduction of diploid organisms, it enables genetic diversity, and it aids the repair of genetic defects.
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A building company purchases a large plot of forest-like land with the intention of building a new residential neighborhood. This forest-like area is home to 2 types of squirrels: tree squirrels and ground squirrels. Tree squirrels have bushy tails, longer legs, sharp claws for climbing, and large ears. Ground squirrels have shorter legs, less sharp claws, and less bushy fur. In order to build the houses, the company knocks down 80% of the trees. Which squirrel population was better fit for the change of the environment
a Ground squirrels because they did not require trees for survival.
b Tree squirrels because they require trees for survival.
c Ground squirrels because they can use their sharp claws to climb trees.
d Tree squirrels because they can use their sharp claws to burrow into the ground.
Who was the first scientist to monitor the movement of the stars and moon?
Aristotle
Hedu’Anna
Archimedes
Copernicus
Answer:
Aristotle
Explanation:
Aristotle created his own system for mapping the stars first, the others studied and discovered things in different subjects. :)
Answer:
Isn't it Galileo.
I think it is Galileo
IF A CUBE IS 1CM ON A SIDE, CALCULATE ITS SURFACE AREA. HINT WRITE 2 points
OUT FORMULA FOR SURFACE AREA OF A CUBE.*
8CM2
8CM3
6CM3
6CM2
2 points
FACURE IS 1CM ON A SIDE, CALCULATE ITS VOLUME. HINT WRITE OUT
Answer:
Surface area of the cube = 6cm²
Volume of the cube = 1cm³
Explanation:
The surface area of a cube, which refers to the sum of all the areas of the faces of the cube can be calculated using the formula:
S.A = 6 × a²
That is; a² + a² + a² + a² + a² + a²
Where;
a = length of a side of a cube
a² = area of one side of a cube
Note that, a cube has 6 faces
According to this question, a cube has a length of 1cm on each side.
Hence, S.A = 6 × 1²
S.A = 6 × 1
S.A = 6cm²
Volume of the cube can be calculated using the formula: a³
Where a = 1
Volume = 1 × 1 × 1
Volume = 1cm³
What is an observation? What do you use to make an observation?
Answer: we can make observations directly by seeing, feeling, hearing, and smelling, but we can also extend and refine our basic senses with tools: thermometers, microscopes, telescopes, radar, radiation sensors, X-ray crystallography, mass spectroscopy, etc. And these tools do a better job of observing than we can!
What is a mutation that stops the production of a protein considered
Answer:
Explanation:
A nonsense mutation is a genetic mutation in a DNA sequence that results in a shorter, unfinished protein product. DNA is a chain of many smaller molecules called nucleotides.
i need help cant get this one wrong
Answer:
ik that 1 goes to blue
Explanation:
WILL MARK AS BRAINLIEST!!!!!
Describe the levels of organization in the body.
Thank you! I will also try to answer some questions if someone answers :)
Answer: The six levels of organization in the body are: chemical, cellular, tissue, organ, organ system, organism.
Explanation: Hope this helps!
The Earth’s atmosphere consists of a combination of gases. Scientists believe that we are creating air pollution, which causes an increase in some gases, such as carbon dioxide. Such increases make it difficult for the atmosphere to stay in balance, and heat radiating from the Earth is being trapped. What term refers to the sun’s energy being trapped in our atmosphere?
A) cumulus clouds
B) greenhouse effect
C) transpiration
D) convection
And I need an explanation
Answer:im guessing its the greenhouse effect
Explanation:The Earth's atmosphere is composed of Nitrogen (78%), Oxygen (21%), and other gases (1%). ... Due to increases in gases, like carbon dioxide, that trap heat being radiated from the Earth, scientists believe that the atmosphere is having trouble staying in balance creating the greenhouse effect
Suppose that to snow leopard’s, heterozygous for both traits meet. Suppose further that in the female, the two dominant alleles are on the same chromosome of the homologous pair, while in the mail, each chromosome of the pair has one dominant and one recessive allele. What is the expected phenotypic ratio of their children?
Complete question:
Snow leopards live in the high reaches of the Himalayas and have several adaptations to deal with living most of the time in snow. They have wide paws with hair between the toes to allow them to run on top of the snow crust. Assume that wide paws (W) and hair between the toes (T) are both dominant traits and are on the same chromosome. Suppose that two snow leopards, heterozygous for both traits, mate. Suppose further that in the female, the two dominant alleles are on the same chromosome of the homologous pair, while in the male, each chromosome of the pair has one dominant and one recessive allele.
1) What percentage of each of the following genotypes will be produced?
WWTT:WWTt: WWtt:WwTT:WwTt:Wwtt: wwTT:wwTt:wwtt2) How many of the offspring (assume 4 cubs) will have narrow paws with hair between the toes?
Answer:
1) Percentage of each of the following genotypes
WWTT: 0WWTt: 1/4 = 25% WWtt: 0WwTT: 1/4 = 25%WwTt: 0Wwtt: 1/4 = 25%wwTT: 0wwTt:1/4 = 25%wwtt: 02) Offspring with narrow pows: 1 of four individuals.
Explanation:
Available data:
wide paws (W) and hair between the toes (T) are both dominant traitsnarrow paws (ww) and no hair (tt) are bothe recessive traitsBoth traits are on the same chromosome.Female: W and T on the same chromosome of the homologous pair, w and t on the other chromosome.Male: W and t on the same chromosome of the homologous pair, w and T on the other chromosome.Cross: Between two heterozygous individuals
Parental) WwTt x WwTt
Sex) Female Male
Gametes) WT wt Wt wT
Punnett square)
WT wt
Wt WWTt Wwtt
wT WwTT wwTt
F1) Genotypes:
1/4 WWTt1/4 Wwtt1/4 WwTT1/4 wwTtPhenotypes:
2/4 = 1/2 = 50% wide paws with hair (W-T-)1/4 = 25% wide paws with no hair (W-tt)1/4 = 25% narrow paws with hair (wwT-)8. In chickens, brown feathers are dominant over red feathers. Suppose we cross two heterozygous chickens.
Draw the punnett square and list the genotypes and phenotypes of the offspring.
I
Genotypes of offspring:
Phenotypes of offspring:
Plz help me
Answer:
Crossing two chickens heterozygous for the trait feather color, when brown feathers are dominant over red feathers, will produce offspring with brown and red feathers in a brown:red phenotypic ratio of 3:1.
Explanation:
Knowing that in chickens brown feathers are the expression of the dominant allele (B) and the recessive allele is red (b), crossing two heterozygous individuals (Bb) will result in offspring that are likely to have brown or red feathers.
The cross can be represented by a Punnett Square:
Bb X Bb cross
alleles B b
B BB Bb
b Bb bb
Where the result is:
Genotypes:
Bb, 50% BB, 25% bb, 25%Phenotypes:
Brown feathers, 75% Red feathers, 25%.In this case, the probability of having brown or red feathers is 3:1.
The following is the results of a genotype being "foiled" for a dihybrid cross: BS | Bs | bS | bs
Determine the parents genotype
A) BBSS
B) BBss
C) BbSs
D) BbSS
Answer:
C. BbSs
Explanation:
The foiled results of the genotype include both capital and lowercase versions of both letters, b and s.
This means the genotype has to be heterozygous for both the B and S traits, since the foiled results have both dominant and recessive alleles.
So, the genotype must be C, BbSs
The foiled results of the genotype for the offsprings include BS | Bs | bS | bs.
The parent's genotype will then be BbSs.
The genotype of both parents have to be heterozygous as a result of the
presence of its forms in the B and S traits. There is the presence of the
dominant (B,S) and recessive traits (bs).
The genotypes of the parent will however have both traits in them which
translates to the option C) BbSs being the most appropriate.
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What are the functions of carbohydrates, peripheral proteins, and cholesterol in the cell membrane?
Answer:
Some of these proteins serve to transport materials into or out of the cell. Carbohydrates are attached to some of the proteins and lipids on the outward-facing surface of the membrane. These form complexes that function to identify the cell to other cells.
1. What does the cell wall surround?
Answer: hi there, the answer to the question would be ( the plasma membrane)
hope this helps :)
Explanation: the cell membrane surrounds the plasma membrane and administers protection and support.
what biotic factors in the taiga are different from the biotic factors in the rainforest
Answer:
flora and fauna and also some types of invasive species
Which type of population pyramid occurs in locations where fertility rates are high, death rates fall, and more people
are middle aged with a longer life expectancy?
A) expansive population pyramid
B) constructive population pyramid
C) stabilizing population pyramid
D) directional population pyramid
E) stationary population pyramid
Answer:
constructive population pyramid (B)
Answer:
C) Stabilizing Population Pyramid
the population is stabilizing
Because the death rates are falling and life expectancy is longer, the population is stabilizing.
help me out please!
Answer:
223
Explanation:
Answer:
the answer is c because it grabs carbon and turns it into oxygen which is what we breath
What is the number of chromosomes made at the end of mitosis and meiosis?
Answer:
15 chromosones
Explanation:
Help Me out please
I will mark brainiest
Enviromental quality refers to the quality of the total enviroment, including both the natural and the __ enviroment ?
Answer:
Environmental quality refers to the quality of the total environment, including both the natural and the built environment.
Natural Environment- Plants, animals, natural resources, etc.
Built Environment- Man-made structures and facilities.
Let me know if this helps!
The taxonomic classification that contains the most organisms and is the MOST inclusive is
Answer:
Domain
Explanation:
A domain is the most inclusive of the levels
The word physiology comes from __________ attempt to distinguish between natural and supernatural causes of things.
Answer:
Harvey
Explanation:
The study of specific characteristic and mechanism of animals or plants that makes it to exits living organisms is called physiology. Thus this could be plant, animals insects physiology.
In 1628 Harvey for published a book, titled An anatomical exercise on the motion of the heart and blood in living beings. That was the first time the word physiology was used.
He used the tam to distinguish between natural and supernatural causes of things in the book.
The publication of this book formed the golden age of physiology in Nederland as early s 1628
Please answer the questions ill mark you brainlist i need it asap for my homework please
Answer: Sensory Neurone and a synapse
[tex]\Huge\text{1) Sensory Neurons}\\\\\Huge\text{2) Synapse}[/tex]
_____________________________________[tex]\Huge\textbf{Reflex Action:}[/tex]Reflex action is a involuntary and instantaneous action in response to a stimulus acting over a reflex arc. Some reflex actions are inherited and innate while other are acquired through learning processes. These reflex actions are performed without the will of the animal & generally involve minimum number of neurons.
Reflex Arc:Many neurons work in group called reflex arc, There must be atleast two neurons in a reflex arc. A reflex arc is made possibly a shortest pathway so the body acts on an impulse before it reaches the brain, and usually it is coordinated by spinal cord and brain-stem.
The parts of reflex arc is given as,
A receptor, a sense organ in the skin muscle or other organ.An afferent or sensory neuron, which carries impulses towards the central nervous system.The central nervous system, where a synaptic connections are made between the sensory neuron and the inter-neurons.The efferent or motor neurons which makes a synaptic connection with the inter neuron and carries impulses out from the central nervous system.The effector, by which the animal responds to the environmental changes.The change in the body is detected by receptors which gives the information to the brain or spinal cord which is the control center via the sensory neuron. The control center decides the appropriate response and sends it to the effector via motor neuron which plays its role.
_____________________________________[tex]\Large\textbf{Synapse:}[/tex]
a synapse is a small gap at the end of a neuron that allows a signal to pass from one neuron to the next. Synapses are found where nerve cells connect with other nerve cells or the muscle.
_____________________________________Best Regards,'Borz'What are the Amino acids of the mutated DNA sequence: TAC ATC TTG GCG ACG ACT
Answer:
Tyr Ile Leu Ala Thr Thr
Explanation:
In a DNA sequence, a pair of three bases form a codon that codes one particular amino acid in the protein. Proteins are consist of 20 amino acids and these amino acids are coded by a pair of three bases.
There are four bases in a DNA - Thymine (T), Adenine(A), Guanine(G) and Cytosine(C).
The given mutated DNA sequence will also code for some amino acid, that is as follows:
TAC - Tyr (Tyrosine)
ATC - Ile (Isoleucine)
TTG - Leu (Leucine)
GCG - Ala (Alanine)
ACG - Thr (Threonine)
ACT - Thr (Threonine)
Thus, The mutated DNA sequence TAC ATC TTG GCG ACG ACT codes for Tyr Ile Leu Ala Thr Thr.
How do environmental factors affect germination in early growth of different food crops
Answer:The germination process is commonly regulated by many abiotic factors, both individually and interactively, and these include light, temperature, pH, burial depth, soil salinity and moisture.
Explanation:
Please identify the parts. I will mark brainlist
Answer:
a) mitochondria
b) centriole
c) nucleus
d) endoplasmic reticulum
e) cell membrane
Hope i helped and have a awesomly amazing day. :)))
what are 2 stages of photosynthesis, and where does it take place?
Which factor determines who a society will produce goods and services for?
A.
the economic system in the society
B.
the available resources in the society
C.
the population of the society
D.
the external sector of the society
Answer:
the economic system in the society
What is the main cause of pollution
Answer:
Humans
Explanation:
The main cause of pollution is the burning of fuel, over-use of fertilizers and pesticides, carelessness, and the improper disposal of waste. And who does this? Not casper, not pennywise, not animals, but us humans. So we are the main reasons why pollution exist.
You can just write what causes pollution (the underlined), you dont need to write about who causes it.
Hope this helped!
Have a supercalifragilisticexpialidocious day!
We use genetically modifed animals for protein tracking as well as novelty pets.
True
False
