Answer:
Acellular
Explanation:
Viruses are acellular, meaning they are biological entities that do not have a cellular structure. Therefore, they lack most of the components of cells, such as organelles, ribosomes, and the plasma membrane.
pollination of a flower or plant with pollen from a different flower or plant is known as
Answer:
Cross-pollination
Explanation:
cross-pollination is when pollen from one plant gets transported to another plant.
self-pollination is when pollen gets transported from the anther to the stigma of the same flower or a different flower on the same plant.
7. How does a beach mouse get its trait? The order of the process is:
A.RNA → Gene A → Protein A → Amino Acid → Fur color
B.Gene A → Amino Acid → Protein A → RNA → Fur color
C.Protein A → Amino Acid → RNA → Gene A →Fur color
D.Gene A → RNA → Amino Acid → Protein A → Fur color
E.RNA → Gene A → Amino Acid → Protein A → Fur color
Which of the following would not be considered evidence that supports the modern theory of evolution?
a. The embryonic structures of many organisms appear similar and they share characteristics like gills and tails during early development.
b. Fossils are discovered that show gradual changes in the physical characteristics of a species over time.
c. Analogous structures, like bird and bat wings, show us that these organisms inherited wings from a recent common ancestor.
d. DNA of organisms that are theorized to be closely related often shares a lot of similarities.
Answer:
a
Explanation:
What is the purpose of rRNA?
A. to retrieve amino acids
B. to be a working copy of DNA
C. to assemble proteins
D. to replicate the genetic code in mitosis
Answer:
A
Explanation:
The primary function of rRNA is in protein synthesis – in binding to messenger RNA and transfer RNA to ensure that the codon sequence of the mRNA is translated accurately into amino acid sequence in proteins.
The staff in the neonatal unit at a hospital are not sure which of two babies belong to which set of parents. The blood types of the babies are AB and O. One set of parents has blood types A and B. With this knowledge it would still be necessary to test the second couple.
True
False
Answer:
True
Explanation:
Women gives birth to a baby boy. A few years later she gives birth to another baby boy. What is the probability that her third child will be a girl? Play your reasoning
Answer:
50 %
Explanation:
It is given that a woman gives birth to a baby boy. Her second child is also a baby boy. Now she is about to give birth to her third child. We have to determine the probability of the child to be a girl.
Here, the probability of the child to be a girl would be 50 % or 1 out of 2.
There are two possibilities and the possibilities would result a boy child or a girl child. So there are two possible outcomes and is equally likely with each child birth.
Also each child birth is an independent event, so the probability that the one results will occur do not depend on the previous births.
which type of specialized cells would be found in an animal’s neuvous system?
The type of specialized cells would be found in an animal’s nervous system are the cells that transmit signals around the body. The correct option is D.
What is the nervous system?The nervous system is the part of an animal's body that controls behavior and sends messages to other parts of the body. It is divided into two components in vertebrates: the central nervous system (CNS) and the peripheral nervous system. The CNS houses the brain and the spinal cord.
Neurons are specialized cells found in animals. These cells are classified as sensory neurons, interneurons, or motor neurons based on their function. They transmit signals from the body to the brain and from the brain to the body parts.
Therefore, the correct option is D. Cells that can transmit signals around the body.
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The question is incomplete. Your most probably complete question is given below:
Cells that transport oxygen are found in the blood.
Cells that secrete hormones to trigger cellular responses.
Cells secrete enzymes to break down food.
Cells that can transmit signals around the body.
There are three species of birds on an island. Bird A has a heavy bill for eating seeds.
Bird B has a pointed bill for eating insects. Bird C has a sharp bill for eating both insects
and seeds. If all insects on the island suddenly disappeared, which bird or birds would
be the LEAST affected?
Please help
Answer:
A and C would least be affected
Explanation:
because a doesn't live off of insects and see if insects do disappear it still has seed stuff all back on
Bird A will be least affected if all insects on the island suddenly disappeared because Bird A does not depend on the insects.
What is the survival of the fittest?This theory suggests that the fittest organisms survive in the environment and reproduce.
The fittest organisms have most of the required traits to survive. Bird A eats the seeds, Bird -B eats the insects, and bird C eats both seeds and insects,
Therefore, Bird A will be least affected if all insects on the island suddenly disappeared because Bird A does not depend on the insects.
Learn more about survival of the fittest:
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Interactions that destabilize the system to have feedback
Answer:
A negative feedback loops is when glucose levels get too high, the body releases insulin into the bloodstream to get back to normal blood levels.
what are the three age categories labels between childhood and adulthood
Answer: Early adolescence, middle adolescence, and late adolescence.
brainliest or a thank you please :)) <33
Image Courtesy of 3D Science.com
Based on the image above, which of the following digestive system organs performs both mechanical and chemical digestion?
Answer: Option A
Explanation:
Answer:
A.
Explanation:
Digestion begins in the mounth. Mechanical digestion is the actual chewing of the food, and the chemical digestion begins when the saliva secretes digestive enzymes.
Some relationships between organisms are described below. What type of relationship does each statement describe?
Answer:
Competition, predation, commensalism, mutualism and parasitism.
Explanation:
There are five types of relationships present between organisms such as competition, predation, commensalism, mutualism and parasitism. Competition is a type of interaction between organisms in which both the organisms are harmed. In predation relationship, one organism feed on the other by killing it. commensalism is a relationship in which one is benefited and the other is neither benefited nor harmed. In mutualism relationship, both the organisms or species gets benefit from one another whereas parasitism is a type of relationship in which one organism is benefited and the other is harmed not killed.
Which is an example of a scientific theory?
A. On average, larger mammals sleep longer than smaller mammals.
B. If a plant receives pure water, then it will grow more than one that
receives salt water.
C. Organisms evolve over time due to changes in heritable physical
characteristics.
D. If a person takes at least one vitamin per day, then it will reduce a
person's level of tiredness.
HELP PLEASE!
Answer: Organisms evolve over time due to changes in heritable physical characteristics.
Explanation:
There are a few things to look for when distinguishing between a nonscientific theory and a valid scientific theory. One thing to consider is if there are any published literature, experimental studies, and data available to support the theory. Most scientific theories have data and information tied to them. Another factor to examine is who has developed the theory. A scientific theory will always be supported by evidence with large quantities of data and testing. An example of a scientific theory is the theory of evolution, which observes changes in heritable physical traits over time in an organism. A hypothesis might be that all organisms evolve at the same rate.
Organisms evolve over time due to changes in heritable physical characteristics is an example of a scientific theory known as evolution. Thus, option C is correct.
What is evolution?Evolution is the scientific theory that explains that "a change in the characteristics of biological populations over next generations.
According to scientists RNA is the first existing molecule on earth that replicate by itself and the process of evolution lead to advanced forms of life.
These characteristics are easily trasfered from one generation to other generation.
Therefore, Organisms evolve over time due to changes in heritable physical characteristics is an example of a scientific theory known as evolution. Thus, option C is correct.
Learn more about evolution here:
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Which characteristic of living organisms is shown?
Answer:
excretion
Explanation:
If the person drank a large volume of water, far more than was needed by the body, predict what would happen to glucose, urea, and calcium ion components in urine?
Answer:
there would be less of these components in urine
Explanation:
I will mark Brainliest for frist answer
Answer:C, to contain the information
Explanation:
Plant Cell Writing Prompt
Part 2: Using your notes, write a detailed explanation of a plant cell, one of the most complex cells. Please be sure to write at least two paragraphs and highlight all parts used in your writing. Make sure your essay includes all the following parts:
cell membrane, genetic material (DNA), cytoplasm, ribosomes, cell wall, nucleus, rough endoplasmic reticulum, smooth endoplasmic reticulum, Golgi apparatus, a large vacuole, mitochondria, chloroplasts, lysosome.
Answer:
Plant cell
Explanation:
Cell wall: cell wall is only found in plant cell . it is made up of cellulose. it's function is to give shape to the cell and protect the delicate inner parts of the cell. this cell is fully permeable. it means it will allow all substance to pass in. cell membrane is made up of protein and lipids. it's function is to control what comes in and out of the cell. this membrane is selectively permeable. it means it allows some substance to pass in and others don't. cytoplasm is large sac like structure. most chemical process occur here. chromoplast are the green pigments.
cell wall is only found in plant cell . it is absent In animal cell . the neucleus in the plant cell contain a pigments haemoglobin, which contain genetic information to the cell .
how do mutations lead to a variation of traits with a population if organisms?
The flow of individuals in and out of a population introduces new alleles and increases genetic variation within that population. Mutations are changes to an organism's DNA that create diversity within a population by introducing new alleles.
PLZ HELP!
How can you tell a sedimentary rock from another type?
Answer:Sedimentary rocks are made from grains so if it is made up from limstone,coal,shale, and sandstone then it is a Sedimentary rock.
Answer:
Sedimentary rock is often found in layers, another way to tell if a rock sample is sedimentary is to see if it is made from grains. Some sedimentary rocks have limestone, sandstone, coal and shale in them.
Hope this helps
At the core of the differences between gender and sex is the chromosomal information transmitted at the moment a child is conceived. An "XY" chromosome generally means A) a heterosexual embryo B) a male embryo C) a hermaphrodite embryo OD) a female embryo
Answer:
B) male embryo
Explanation:
6. The three main regions of the brain that receive and process information are the cerebrum, the cerebellum, and the ____________________________.
Briefly describe what uses the oceans can pose to humanity. Write your response in the essay box below.
Answer:
Water, fresher climate, not only scientific factors but also a psychological factor (nice beaches, palms, other wildlife, etc.)
Which statement accurately describes the levels of organization?
A. A group of cells that work together to perform a common function is called an organ,
B. A group of tissues that work together to perform a common function is called an organ,
C. A group of tissues that work together to perform a common function is called a cell,
Activity
Dana
Tyne here
Answer:B. A group of tissues that work together to perform a common function is called an organ,
Explanation:
how can older rocks be found on top of younger rocks in a cross-section?
Answer:
Thrust faults form where rocks are being compressed, usually by plate tectonic mechanisms. Thrust faults rip up older strata and pile it on top of younger rocks.
Explanation:
source from the internet
Why does energy transfer not always result in Phase change ?
Answer:
phase change requires more energy to occur
true or false
Only animals have a niche.
Answer:
False
Explanation:
Answer:
True
Explanation:
help................
The top left, would be light energy from the sun, while the top of the circle would be living beings. Think about it just like plants that that gain energy from the sun through photosynthesis. Then the bottom of the circle would be nonliving beings, either decomposed plants or animals that bring nutrients to soil, or dead ones that we eat. This cycles through until the energy is rereleased through heat. Therefore the top right would be heat energy, every living thing on earth creates gradual amounts of heat. Imagine going for a run, you'll probably be hotter afterwards right? I know it's not the most scientific answer but its 100% right.
Hope this helps!
Use signal words from the passage to determine
which of the following events was caused by the
fact that the plants on the island were different
from the plants on the South American mainland.
A. Finches from South America arrived on one
of the islands.
O B. The population on the island evolved
differently from the population on the
mainland.
C. The finches that arrived on the island had
to survive in a new environment.
O D. A few finches from the island may have
flown to another island and begun the
speciation process again.
Describe what happens to the egg in the ovary as the FSH level increases.
Answer:
The rise in follicle-stimulating hormone stimulates the growth of the follicle in the ovary. With this growth, the cells of the follicles produce increasing amounts of oestradiol and inhibin.
Hope this helps, good luck!
Write your explanation of the role of genetics in Natural and Artificial Selection. Write on how environmental factors affect the survival based on Natural and Artificial Selection.
