Answer:
Natural selection is a proccess that occurs when an oganism is to weak to survive against other predators in that environementIt has failed to find a suitable nihe and evolution will cause it to become extinct from that geographic area.
Natural selection is the theory behind evolution put forth by Charles Darwin. Given the scarcity of resources in nature, animals with heritable features that promote survival and reproduction will typically produce more offspring than their contemporaries, leading to an increase in the frequency of such traits across successive generations.
Why is natural selection important?Charles Darwin's theory of evolution is known as natural selection. Animals with heritable qualities that aid in survival and reproduction will often generate more offspring than their contemporaries due to the limited resources in nature, increasing the frequency of such traits through subsequent generations.
Favorable features are passed down across generations as a result of natural selection. Natural selection may result in speciation, the process by which one species gives rise to another that is utterly separate.
It is one of the mechanisms that propels evolution and contributes to the understanding of the variety of life on Earth.
Thus, this is the main concept of natural selection.
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In humans, the ability to taste the bitter chemical PTC is controlled by a single gene. The tasting gene (T) is dominant to the non-tasting gene (t).
Which of the following genotypes is correctly labeled?
Choose 1 answer:
A
tT - heterozygous recessive
B
Tt - hom0zygous recessive
C
TT - hom0zygous dominant
D
tt - heterozygous dominant
Answer:
CORRECT (SELECTED)
TT - homozygous dominant
Explanation: Individuals with two tasting alleles are homozygous dominant.
While on a field trip, your teacher asks you to record the names of any species you see and to tally the number of individuals of each species you see. What has the teacher asked you to investigate? a. ecosystem diversity c. habitat diversity e. species diversity b. genetic diversity d. structural diversity
Answer:
Hi how are you doing today Jasmine
The teacher has asked you to investigate the species diversity. Thus, the correct option is E.
What is Species?Species may be defined as a cluster of organisms that can reproduce with one another in nature and produce fertile offspring.
Species diversity is the sum total of all species present in an ecosystem. It may also be described as the number and relative abundance of species present in a given biological organization.
Therefore, the teacher has asked you to investigate the species diversity. Thus, the correct option is E.
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porque los alimentos se oscurecen?(platanos, palta, manzana, papa, etc) respondan pls✋
Answer:
Una enzima es una sustancia, generalmente una proteína, en la célula de un organismo que acelera las reacciones químicas.
Durante el pardeamiento enzimático, una enzima llamada fenolasa y otro compuesto orgánico que se encuentra en las células de la fruta llamados fenoles pasan por una reacción de oxidación cuando se exponen al oxígeno. La fenolasa regula la reacción, convirtiendo los fenoles en melanina.
Por lo general, las enzimas de la fruta están encerradas en tejido. Las enzimas están metidas en sus células, trabajando para madurar la fruta. Pero cuando esas células se descomponen, ya sea por una causa externa como si alguien muerde o corta la fruta o por causas naturales como el envejecimiento, las enzimas se liberan y entran en contacto con el oxígeno, lo que desencadena la reacción química y hace que la fruta se vuelva marrón.
PLEASE HELP, ILL GIVE YOU A BRAINLY OR WHATEVER ITS CALLED!!! Why would two parents with dominant traits be able to pass down recessive traits, but two parents with recessive traits cannot pass down dominant traits? (explain your answer with a few sentences)
Answer:
because the traits are not dominants it in the name negus
Explanation:
2. Give an example of
(a) diatomic element
(b) polyatomic element
Answer:
diatomic:hydrogen, oxygen chlorine, polyatomic:helium, neon,krypton
Explanation:
are some examples
Which cellular process is most related to the function of the mitochondria?
A
diffusion
B
mitosis
С C
osmosis
D
respiration
What is the correct term for developing
baby 1 week after fertilisation whe the
organ system are starting to develop?
Answer:
please give me brainlist and follow
Explanation:
Following fertilization the embryonic stage of development continues until the end of the 10th week (gestational age) (8th week fertilization age). The first two weeks from fertilization is also referred to as the germinal stage or preembryonic stage.
Answer:
Embryo
Explanation:
When its organ systems start to develop, it's called the embryonic period. Hence, the correct term will be embryo.
hope this helps and is right. p.s i really need brainliest :)
if my answer is wrong then I am incredibly sorry!
Which of the following statements BEST describe viruses? Pick ONE.
: They have cytoplasm
: They have organelles
: They cannot live on their own
Answer:
They can not live on their own
Explanation:
The main difference between cells and viruses is that viruses need another cell to infect so that they can reproduce. Cells on the other hand can reproduce on their own.
The statements best describe viruses are they cannot live on their own. Therefore, option C is correct.
What is virus ?A virus is an infectious submicroscopic creature that only reproduces inside live cells. All living things, including plants, animals, and microbes like bacteria and archaea, are susceptible to virus infection.
Viruses are utilized as carriers or vectors to deliver the necessary components for treating a disease to different target cells. They have received substantial research in the treatment of malignancies, inherited illnesses, and genetic engineering.
Viruses are composed of bundles of DNA or RNA that are encased in a protein capsule called a capsid. By some metrics the most prevalent life form on Earth1, viruses are thought to be 10 times more prevalent than bacteria.
Thus, option C is correct.
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What is the percent chance the offspring will be tall plants with yellow fruit? (2nd question)
Answer: 25% YOUR RIGHT, UNLESS IT IS 75%
Explanation:
1. For which discovery about DNA do Watson and Crick receive credit?
A. DNA is the molecule that genes are made of.
B. The amount of adenine equals the amount of thymine in an organism.
C. Phosphate-pentose bonding along the nucleotide backbone is covalent.
D. The shape of DNA is a double helix.
Answer:
Hello There!!
Explanation:
The answer is D. The shape of DNA is a double helix.
hope this helps,have a great day!!
~Pinky~
Organelles are found in...
A. the blood stream of complex organisms.
B. inside most cells.
C. constantly moving between cells.
Answer:it’s C
Explanation:
Seasonal changes occur when the Earth moves so that the Northern Hemisphere and the Southern Hemisphere are tilted more toward or away from the Sun. If the Northern Hemisphere is tilted toward the Sun and it is summer, what is happening in the Southern Hemisphere?
A. The Southern Hemisphere is tilted toward the Sun, and it is summer.
B. The Southern Hemisphere is tilted away from the Sun, and it is summer.
C. The Southern Hemisphere is tilted toward the Sun, and it is winter.
D. The Southern Hemisphere is tilted away from the Sun, and it is winter.
Answer:
D
Explanation:
the southern hemisphere is always doing the opposite of the northern hemisphere
An organism with a mutated cell
Answer:.
An organism with a mutated cell is mutant
Hope this helps!
State 8 differences between sexual and asexual reproduction
➩Reproduction:
Reproduction is a process by which living organism produce new organisms of same species (of their own kind)
Reproduction is neccessary for the survival and increase in population of species. It ensures continuity of various species on earth. In simple words if organisms will not reproduce there population will decrease and species will become extinct.
➽Mainly there are two types of Reproduction
(i) Sexual reproduction
(ii) Asexual reproduction
➩Sexual Reproduction
→ In sexual reproduction two individuals are involved to produce a new individual (male and female)
→The entire reproduction process takes longer time and more energy.
→ Population increases relatively slowly.
→ It involves more variations.
→ Species can adapt to an environment which changes.
→This leads to evolution.
→ For example:Homosapiens(Human beings)
Identify the structures of the heart.
label A
Label B
Label C
Label D
Label E
Label F
Answer:
A. Pulmonary value
B. Tricuspid value
C. Septum
D. Bicuspid value
E. Aortic value
F. Aorta
answer at least 5 of these questions.
if you could answer all of them that would be great
Answer:
you could literally just look them up
1. Deoxyribonucleic Acid
2. In biology, a gene is a basic unit of heredity and a sequence of nucleotides in DNA or RNA that encodes the synthesis of a gene product, either RNA or protein. During gene expression, the DNA is first copied into RNA.
3. nucleus
Chromosomes are thread-like structures located inside the nucleus of animal and plant cells. Each chromosome is made of protein and a single molecule of deoxyribonucleic acid (DNA).
4. As described above, DNA can be found in three organelles: the nucleus, mitochondrion, and chloroplast. Only eukaryotes have a nucleus, which is a large structure that's surrounded by a membrane. Nuclear DNA comes in the form of long, linear pieces of DNA called chromosomes.
Cellular respiration and photosynthesis are similar in that both produce
Answer:
oxygen
Explanation:
Answer:
The two processes are similar in that they both produce energy, but in two different forms.
Explanation:
They both provide each other with the necessary ingredients for the process to take place: glucose and oxygen for cellular respiration, carbon dioxide and water for photosynthesis.
Hope this helped!!!
10)
What is point source pollution of an aquatic ecosystem?
A)
pollution of freshwater sources
B)
pollution from many sources that combine into one
pollution that occurs over a wide area; water that runs off from fields,
parking lots, and other land surfaces
D)
pollution that can easily be identified with a single discharge source, such
as an open pipe which drains into a body of water
Answer:
D
Explanation:
the point if of water pollution can be easily identified
Why might a speaker choose NOT to use contractions in a formal speech?
A. Contractions are too short.
B. Contractions are rude.
C. Contractions are informal.
D. Contractions are improper.
Answer:
The answer is C
Explanation:
I just took the quiz :)
A speaker might choose not to use contractions in a formal speech because contractions are informal. Thus, the correct option is C.
What is a Formal speech?A formal speech may be defined as a form of speech that is utilized in authorized and official workplaces. It does not illustrate personal background.
Contraction involves the feelings of pressure, stress, or shrinkage of actions. Thus, all such properties come under an informal type of speech where the personal background is determined.
Therefore, a speaker might choose not to use contractions in a formal speech because contractions are informal. Thus, the correct option is C.
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What is the primary reason that these animals are endangered?
A. habitat loss
B. hunting
C. pollution
D. accidents
(Please help me)
which of these is a distinguishing characteristic of a savanna
Answer:
answer will be explained
Explanation:
Grasses and trees - The savanna is a rolling grassland with scattered trees and shrubs. Rainy and dry seasons - Savannas have two distinct seasons in regards to precipitation.
does this an suggest evolutionary relationship? explain how these embryos can be used as evidence of a common ancestor between each of these six organism
Answer:
Examination of vertebrate embryos reveals that during corresponding stages of early development,
the embryos appear to be very similar. For example, all vertebrate embryos pass through stages in
which they have gill pouches. The pouches eventually develop into the gill apparatus in fish; in laterevolving vertebrates that do not have gills, the gill pouches undergo further refinement and develop
into structures associated with the head and neck. Similarly, all early vertebrate embryos have tails,
which persist in some animals but regress during the later stages of development of humans. Thus,
the individual development of an animal occurs through a series of stages that paint a broad picture
of the evolutionary stages (phylogeny) of the species to which it belongs.
"Ontogeny recapitulates Phylogeny", Haeckel
Explanation:
sure po ito
Examination of vertebrate embryos well-known shows that in corresponding levels of early improvement, the embryos appear very similar.
For example, all vertebrate embryos by skip thru levels in which they have got gill pouches. The pouches subsequently turn into the gill equipment in fish; in later evolving vertebrates that don't have gills, the gill pouches go through similar refinement and develop into systems related to the pinnacle and neck. Similarly, all early vertebrate embryos have tails, which persist in a few animals however regress at some point in the later levels of improvement of humans.What is ontogeny recapitulates phylogeny?These scientists claimed that ontogeny recapitulates phylogeny (ORP). This word shows that an organism's improvement will take it thru every one of the personal levels of its evolutionary history, or its phylogeny.
Thus, the man or woman improvement of an animal happens thru a chain of levels that paint an extensive picture of the evolutionary levels (phylogeny) of the species to which it belongs.
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Define the process of germination.
Answer:
Germination is usually the growth of a plant contained within a seed; it results in the formation of the seedling. It is also the process of reactivation of metabolic machinery of the seed resulting in the emergence of radicle and plumule.
or
Germination, the sprouting of a seed, spore, or other reproductive body, usually after a period of dormancy. The absorption of water, the passage of time, chilling, warming, oxygen availability, and light exposure may all operate in initiating the process.
or
Germination is the process by which an organism grows from a seed or similar structure. The most common example of germination is the sprouting of a seedling from a seed of an angiosperm or gymnosperm
Explanation:
brainliest pls
Chromosomes contain all the genetic ________, all the instructions you need to make a person.
PLEASE HELP ITS BILL NYE VIDEO FILL IN THE BLNK
Answer:
Could the blank possibly be genetic code? Not really sure, but I think that it makes sense.
If the petals of a flower are reduced or absent, how is the plant pollinated?
Answer:
the anther of a plant produces pollen which enters the stigma of the same plant( self pollination) or enters the stigma of another plant ( cross pollination
Explanation:
*(the petals baisically have nothing to do with pollination)
Which of the following is NOT an example of a biotic factor in an ecosystem?
F.
Grasses
G.
Bacteria
H.
Beetle
J. Water
Forensic investigator Adams is working on a crime scene involving the use of a very rare explosive. She already knows that she needs to find out who set the explosive. Following the scientific method what would be her next step in solving this mystery?
Form a hypothesis about the person who bought the explosive
Conclude that the homeowner set the explosive
Collect some data about the distribution of the explosive
Hand over her work to the police so that they can make an arrest
Answer:
I don't know the answer but this was on my quiz and I downloaded sorcatic and it brought me to the first link and app that contains the answer if u need help finding the app let me know hope I helped
Answer:
Collect some data about the distribution of the explosive.
Explanation:
Following 9.06's Scientific Method Lab, we can see that what Adams has done is ask a question: who set the explosive?
The next step of the scientific method would be conducting research, followed then by forming a hypothesis. So the answer is collect some data about the distribution of the explosive, as that falls under conducting research.
(I'm literally taking the test right now, so if it's wrong, then bleh. I tried.)
please help asap (photosynthesis)
Answer:
ATP and NADPH
Explanation:
Photosynthesis starts out using the energy from sunlight to get things started, but it ends with the dark reactions, which don't need sunshine to complete sugar production. In the Calvin cycle, ATP and NADPH from the light reactions are used to produce sugars.
So, the correct option is, 'ATP and NADPH'.
Tongue rolling is a dominant trait. Explain why it is possible for both parents being able to roll their tongue but their biological child is not able to do so.
Answer:
The answer is 0 ( AKA A )
Explanation:
Parents form the same type of gene, which is Rr. Since all the genes are the same, there can not be a chance that the offspring can not roll the tongue. Next time focus on your work!! :3
3. Carbon can also be harmful. Describe one major way that carbon is threatening
our way of life on Earth.
HELPPP ME
Carbon can also be harmful because a large amount of carbon is increasing the warmth of the earth. Carbon dioxide gas increases, lowering the pH of the ocean by the process called acidification, which is a threat to Ocean animals.
What is carbon?Carbon is an element or a substance that is present on earth in different forms full stop carbon is present in two forms on the earth, one is black and heart solid and one is gray and soft.
Carbon reacts with another element to produce different compounds, when carbon reacts with oxygen is produced carbon dioxide which is a very harmful gas for the earth and human beings.
Thus, as greenhouse gases are increasing including carbon dioxide the main threat to life and the earth is increasing of temperature which is melting the ocean and high temperature would not be best for all creatures.
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