Answer:
Unlike prokaryotic cells, eukaryotic cells have a membrane-bound nucleus, a central cavity surrounded by a membrane that houses the cell's genetic material. A number of membrane-bound organelles, compartments with specialized functions that float in the cytosol.
Explanation:
hope this helps
easy biology question below first correct answer gets brainliest
Answer
B
Explanation:
if,k
Answer:
the answer is ....C
.........
When classifying an unknown organism, scientists are most likely to consider its
A age
as important evidence.
B color
C) structure
D number of offspring
Answer:
structure
Explanation:
idrk im guessing the scientists guests as well
1. Do plants, like animals, have traits that increase their reproductive success? What are some of these
traits?
Why is there a higher rate of skin cancer in Australia than in other
parts of the world?
Answer:
In Austrailia there is the highest rate of skin cancer because there is so much sunlight and most austalians have the wrong skin type for thier environment meaning people with pale skin get burnt more easily
Explanation:
Australia has a high rate of skin cancer because there's something different about the sunlight in Australia, and most people in Australia have skin that is easily damaged by light from the sun. Light carries energy that can make materials change. Therefore, Australia has a high rate of skin cancer because the ozone layer is damaged by the energy carried from the UV Light, being absorbed by the ozone and damaging allowing that light to transmit through and damage the genetic material of those individuals with lower levels of melanin.
Be a Lunatic
A solar eclipse happens when --
the sun is directly between Earth and moon
the moon is in Earth's shadow.
the moon is directly between Earth and sun.
the sun blocks out light from Earth.
When the Moon passes between Sun and Earth, the lunar shadow is seen as a solar eclipse on Earth. When Earth passes directly between Sun and Moon, its shadow creates a lunar eclipse. Lunar eclipses can happen only when the Moon is opposite the Sun in the sky, a monthly occurrence we know as a full Moon.
Explanation: im just smart like that
the more mass an object has, the more _____ it needs in order to move. A. Force B. Inertia
Answer:
Force it need in order to move
Answer:
A. force
Explanation:
inertia is that it keeps moving force gets it moving
The cones of a pine tree open in response to heat from a forest fire. The seeds are released
and are spread over a wide area. Hundreds of pine seedlings per acre grow, along with other
plants. Animals eat the plants, and the forest regenerates. This process is an example of
Answer: I believe it’s an example Natural processes
Explanation: Natural processes are interactions among the plants, the animals, and the environment.
These interactions also include photosynthesis, pollination, decomposition and others, that help create and shape natural communities.
los derechos sexuales son iguales a los reproductivos? porfa help
Which of the following describes the relationship between genes and
chromosomes?
Chromosomes form into genes during cellular reproduction
Genes are special sequences of nucleic acids found on chromosomes
Every gene an organism has is found on every one of its chromosomes
All of an organism's chromosomes can be found next to its genes in the cell nucleus
Answer:
Genes are special sequences of nucleic acids found on chromosomes.
Explanation:
A single DNA molecule is a chromosome. A gene is a certain chromosome region of DNA.
All cells of the body are genetically the same, but cells are different from others because specific gene sets are expressed. Different cells, therefore express different genes, which enable them to perform a specific function.
The deoxyribonucleic (DNA) genes are segments that contain a code for a certain protein that works in one or several cell types in the body. Chromosomes are cellular structures that contain the genes of a person. Genes that are in the cellular nucleus are contained in chromosomes.
please answer this for me
the answer is D !!!!!!!
Answer:
maco shark
Explanation:
It is a fast speed-swimming shark that has been called “the peregrine falcon of the sharks” in allusion to the fastest bird in the world. It is considered an animal dangerous to humans because of the speed which can attack and its ability to jump into the fishing boats.
The pancreas is an organ connected to the digestive tract of humans by a
duct (tube) through which digestive enzymes flow. These enzymes are
important to the digestive system because they
Answer: The enzymes are important to the digestive system because they help in BREAKING DOWN of food substances that contains fat, carbohydrates and proteins.
Explanation:
In the process of digestion, several substances are secreted into the duodenum which is the first part of the small intestine. The pancreas, through the pancreatic duct, secretes pancreatic juice. This juice contains several digestive enzymes which include:
--> Amylopsin- This helps in the breaking down of starch( CARBOHYDRATES) to maltose.
--> trypsin: this is a protease that helps in the breaking down of PROTEIN into polypeptide.
--> Lipase: This helps in the breaking down of FAT to carboxylic acids and glycerol.
All the above enzymes of the pancreatic juice require an alkaline medium to work in. This is provided by the bile which is secreted in the fall bladder.
PLEASE HELP ITS DUE TOMORROW
based on Mr. Kaku's assertion that knowing what the stars are made of is as easy as running starlight through a prism, use the CER method to explain the use of light to determine composition of a star in detail.
Answer:
spectroscopy.
Explanation:
The use of light to determine composition of a star is known as spectroscopy. When astronomers look at an object's spectrum, they can find out its composition based on the wavelengths of light. Spectroscopy is the most common method astronomers use for knowing the composition of stars, planets, and other objects so we can conclude that spectroscopy is the method which is used to determine the composition of stars.
An advantage of asexual reproduction is that it __________. Group of answer choices allows a species to easily rid itself of harmful mutations enhances genetic variability in the species allows the species to endure long periods of unstable environmental conditions produces offspring that respond effectively to new pathogens maintains successful genetic combinations without modification
Answer:
Maintains successful genetic combinations without modification.
Explanation:
Asexual reproduction usually creates perfect copies of the parent. If the parent is genetically sound creature, then a successful genetic combination is being reproduced and maintained without any changes or modification.
Which describes the correct paring of DNA bases?
A. A with G, and C with T
B. A with T, and C with G
C. A with C, and T with G
D. A with A, and G with G
Identify the statement that describes the imperfection of natural selection. Identify the statement that describes the imperfection of natural selection. Natural selection has not had sufficient time to create the optimal design in each case but will do so given enough time. Natural selection is generally limited to modifying structures that were present in previous generations and in previous species. In many cases, phenotype is not merely determined by genotype but by the environment as well. Though we may not consider the fit between the current skeletal arrangements and their functions excellent, we should not doubt that natural selection ultimately produces the best design.
Answer:
Variability was seen as imperfection, so natural selection could only eliminate the inferior and imperfect, not giving rise to new things, new species.
:
Mendel crossed yellow-seeded and green-seeded pea plants and then allowed the offspring to self-pollinate to produce an F2 generation. The results were as follows: 6,022 yellow and 2,001 green (8,023 total). Which of the following statements correctly describes the relationship of the allele for green soods to the allele for yellow seeds? A. The green allele is dominant to the yellow allele B. The two alleles exhibit incomplete dominance C. The green alicle is recessive to the yellow allele D. The two alleles are codominant
Answer:
C. The green allele is recessive to the yellow allele
Explanation:
Complete dominance occurs when one gene variant or allele referred to as the 'dominant allele' completely masks the expression of another allele referred to as the 'recessive allele' in heterozygous individuals, i.e., in individuals carrying one copy of the dominant allele and one copy of the recessive allele for a particular locus/gene (whereas homo-zygous individuals carry the same alleles for a given locus/gene). Mendel crossed pure lines of pea plants, i.e., homo-zygous lines for different traits such as seed color (yellow and green) and seed shape (round and wrinkled). In this case, the parental cross was YY x yy, where the 'Y' allele is dominant and encodes for yellow seed color, and the 'y' allele is recessive and encodes for green seed color. From this cross, Mendel obtained a hybrid F1 (i.e., all progeny was heterozygous with genotype Yy). An expected 3:1 ratio as observed in this case (6,022 yellow and 2,001 green seed >> 3:1 ratio) is characteristic of the progeny that results from mating between F1 heterozygous parents, where each parent has one dominant allele and one recessive allele, i.e., F1 parental cross: Yy x Yy >> F2: 1/4 YY (yellow color); 1/2 Yy (yellow color); 1/4 (green color) >> 3:1 ratio of yellow to green seeds.
Where are the pigments that trap the photons (light energy)?
A. in the stroma of the chloroplast
B. in the mitochondria
C. in the thylakoid disks of the chloroplast
Answer:
C. in the thylakoid disks of the chloroplast
Explanation:
These reactions occur in the thylakoid stroma and cytosol. Chlorophyll a is the only light-absorbing pigment in reaction centers.
Answer:
C. in the thylakoid disks of the chloroplast
Explanation:
The pigments that trap the photons (light energy) is located in the thylakoid disks of the chloroplast.
What are the raw materials (reactants/goes into) for photosynthesis?
A. water and glucose
B. carbon dioxide and water
C. glucose and oxygen
Answer:
c
Explanation:
True/False. Genetic recombination makes it so your grandfather will always pass on more DNA to you than your grandmother
Answer: false
Explanation:
Which graph represents selection that may lead to reduced variation
in a population?
The frequency graph represents selection that may lead to reduced variation in a population.
CUAL ES MEJOR
REY JULIEN
O EL MAMON DE STEVEN UNIVERSE :D
Answer:poop
Explanation:
yuh poop
What are the two main components of the cell cycle
In eukaryotic cells or cells with a nucleus, the stages of the cell cycle are divided into two major phases: interphase and the mitotic (M) phase.
What is cell cycle?
The cell cycle, or cell-division cycle, is the series of events that take place in a cell that cause it to divide into two daughter cells. These events include the duplication of its DNA (DNA replication) and some of its organelles, and subsequently the partitioning of its cytoplasm and other components into two daughter cells in a process called cell division.
In cells with nuclei (eukaryotes, i.e., animal, plant, fungal, and protist cells), the cell cycle is divided into two main stages: interphase and the mitotic (M) phase (including mitosis and cytokinesis). During interphase, the cell grows, accumulating nutrients needed for mitosis, and replicates its DNA and some of its organelles. During the mitotic phase, the replicated chromosomes, organelles, and cytoplasm separate into two new daughter cells. To ensure the proper replication of cellular components and division, there are control mechanisms known as cell cycle checkpoints after each of the key steps of the cycle that determine if the cell can progress to the next phase.
In cells without nuclei (prokaryotes, i.e., bacteria and archaea), the cell cycle is divided into the B, C, and D periods. The B period extends from the end of cell division to the beginning of DNA replication. DNA replication occurs during the C period. The D period refers to the stage between the end of DNA replication and the splitting of the bacterial cell into two daughter cells.
Learn more about cell cycle
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Carol's little brother was at the duck pond in the park. He tried
to catch one of the ducks. Even though the duck would almost
let him touch him, the duck would run away. This is an example
of the duck responding to
O
trying to reach homeostasis.
a change in the metabolism.
O
a change in body temperature.
O
fight or flight.
Answer:
O fight or flight
Explanation:
The duck is afraid of Carol's little brother, even though the duck would almost let him get close
What is one example of an adaptation an organism could have that would
increase its chance to survive?
Answer:
some physical adaptations that have structurally modified animals to improve their chances of survival include webbed feet, sharp claws, large beaks, wings, feathers, fur, and scales.
Explanation:
What happens to cause air to be exhaled from the lungs?
A)The rib muscles contract and move upward
B)The chest cavity expands and grows larger
C)The diaphragm relaxes and moves upward
D)The lungs contract and expand
Answer:
The answer is C.
Explanation:
When you breathe out or exhale, your diaphragm relaxes and moves up into your chest cavity. As the space in your chest cavity gets smaller, the air rich in carbon dioxide is forced out of your lungs and windpipe, and then out your nose or mouth.
What do hypothesis, theories, and laws have in common ?
An allele whose trait only shows up when no dominant allele is present
hidden allele
dominant allele
present allele
recessive allele

If you had access to these scientists, (in the Netherlands) what questions would you ask them in order to clarify evidence of the factors that have caused the rise in global temperatures over the past century? Write two questions using two different perspectives: one from a person who might be in agreement with the scientists and one who is skeptical of this court ruling and environmental activists around the world.
how does your job ,scientist contribuite to the global concern of the global warming.?
is there any scientific explanation or a way to make the earth's temperature normal?
do u think that being a scientist itself is a harm to the environment?
have u dobe anything or any research on the ways to get the earth back to its normal temperature?
Describe how the lizard population is changing
Answer:
Each time lizards colonized an island, they evolved into many of the same forms. .Other lizards adapted to life among the thin branches lower down on the trees, evolving short legs that help them hug their narrow perches. Still other lizards adapted to living in grass and shrubs, evolving long tails and slender trunks.Lizards are low on the food chain. Providing protection from their natural predators ensures their continued existence. Plant bushy perennials, create a rock or brush pile or use man-made items like stacks of bricks or pipes.
A biology teacher asks his class to make models of a plant cell, an animal cell, and a bacterial cell. Aside from cytoplasm and the cell membrane which other cell structure will the students need to make all three models?
A. Ribosome
B. Nucleus
C. Golgi Apparatus
D. Chloroplast
E. Cell wall
