Answer:
They are usually found in the center and they are called embyro sacs.
Explanation:
This is a ___________ gibbous moon.
a) crescent
eliminate
b) new
c) waning
d) waxing
This is a new gibbous moon.
Rabbits can exhibit a number of colors in their coats: black, white, tan, brown, red, and grey. A disease randomly kills off most of the population and leaves only black and grey rabbits. Future generations are only black or grey. What is the term used to describe this
phenomenon? (1 point)
1. artificial selection
2. genetic drift
3. natural selection
4. genetic modification
please hurry and I will mark brainliest!
Answer:
2. Genetic Drift
Explanation:
Because it's simply by chance not on purpose or because their stronger.
Term used to describe the phenomenone where only black and grey rabbits survive and rest are killed randoml is called Genetic Drift..
What is genetic drift?As a result of a chance or random event, the frequency of an allele in a population drifts over time compared to the frequency of the other alleles. this is termed as genetic drift. Here, the rabbits with other coat colors were randomly killed off due to the disease which increased the frequency of the black and grey coat allele and hence the population drifts from multicolored coats to only black and grey colored rabbit coats.Hence the correct option here will be 2. Genetic Drift
other options are incorrect because:
Artificial selection is inducing the desired traits artifically which is not possible because the disease was a random event and not induced by humans.Natural selection is the survival of the fittest of the alleles and elimination of less fitter alleles. here it is not mentioned whether Black and grey coats were more fitter to survive than other coatsGenetic modification is a human made procedure and did not occur here.learn more about Genetic Drift here:
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A circumpolar constellation can be seen ____________
Answer:
Ursa Minor
Explanation:
All of the following are anthropoids from the Fayum EXCEPT Group of answer choices Oligopithecidae Eosimiidae Propliopithecidae Parapithecids
Given what we know, we can confirm that the animals listed that are not a part of the anthropoids are the Eosimiidae.
Why are they not anthropoids?The Eosimiidae' are a species of now-extinct primates that very closely resemble the anthropoid family. They were once linked to the anthropoids and thought to belong to this group due to their very similar traits and behaviors, over time, however, it was discovered that they did not in fact belong to this grouping.
Therefore, we can confirm that the animals listed that are not a part of the anthropoids are the Eosimiidae.
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How does continental drift theory explain extinction of organisms?
Answer:
He argues that the “dance of continents”-the break-up, movement, collision and re-formation of continents through time-creates the basic geographic and climatic conditions which drive the decline and extinction of species.
Explanation:
2. Use words from the word bank to fill in the blanks in the sentences below.
Species inherit__from__. If two species have some of the same__. This means that they are probably__or__that also had those__
of
Word Bank
body structures
ancestors
descendants
a common ancestor
Answer:
1. body structures2. ancestors 3. descendants
Explanation:
that's all I know sorry I hope that's helpful
What part of the nucleotide connects in
the middle of the molecule and makes up
the "steps" of the ladder?
Answer: The inside of the molecule, the "steps" of the staircase, are made of the nucleotide bases Cytosine, Guanine, Adenine, and Thymine. C bonds to G by three hydrogen bonds. A bonds to T by two hydrogen bonds. A and G are double ringed structures called "purines".
Explanation:
What is one way the current atomic model differs from the Bohr model?
What color is reflected back to cause plants to appear green?
Answer:
Chlorophyll gives plants their green color because it does not absorb the green wavelengths of white light. That particular light wavelength is reflected from the plant, so it appears green.
Explanation:
Have a great rest of your day
#TheWizzer
The color that is reflected back to cause plants to appear green is the color green, as that is reflected back, the eyes can capture it, and as a result, the plants appear to be green.
What is the reason behind plants being green?Plants are green because of the presence of chlorophyll, a pigment found in plant cells. and this green color from sunlight is reflected back to the environment, and chlorophyll is crucial for photosynthesis, the process by which plants convert sunlight into energy, Photosynthesis occurs in specialized organelles within plant cells called chloroplasts. This absorbs light energy from the sun, and the absorbed energy is then used to power a series of chemical reactions that convert carbon dioxide and water into glucose, a form of sugar that the plant can use for energy.
Hence, the color that is reflected back to cause plants to appear green is the color green.
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I really need help pls! This is the question...
A sample of iron has dimensions of 2 cm x 4 cm x 6 cm and a mass of 100g. What is the density of the sample?
what nutrient class(category of biological molecules)provides sugar in the diets of heterotrophs?
give one disadvantage of having a large number of stomata per mm squared of leaf surface
Answer:
The downside to wide open stomata is increased water loss (transpiration). So stomata of cool-season turfgrasses have decisions to make. The plant needs to capture and store energy via photosynthesis, however, excessive water loss through transpiration can result in plant injury or death.
One disadvantage of having a large number of stomata per mm squared of leaf surface might be the excessive loss of water.
What are stomata?Stomata are specialized plant structures used to exchange gases such as oxygen and carbon dioxide.
The plant structures (stomata) are especially located on the leaves where photosynthesis mainly occurs.
In conclusion, one disadvantage of having a large number of stomata per mm squared of leaf surface might be the excessive loss of water.
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Which one below will end up being expressed in the protein?
a) Intron
b) Exon
c) Transcription factor
d) Terminator
e) Promoter
Exons are the DNA fragments that get to be transcripted and translated into proteins. Option b) Exons end up being expressed in the protein.
What are introns and exons?Even though more than 70% of the DNA is related to genes, just a part of the genes is translated to proteins. Most genes have DNA segments that are not transcripted or translated intercalated with segments that are translated.
Introns are non-encoding sequences that produce interruptions in a eukaryotic gene. Exons are the encoding sequences. Exons are the nucleotidic sequences that do codify proteins.Most of the eukaryotic, multicellular genes contain introns in their sequences, intercalated with exons.
Introns are transcripted to mRNA molecules and get excised before translation by a specific mechanism. This occurs before the mRNA leaves the nucleus. The introns are excised and the exons must splice to form a unique molecule. This process is known as splicing.
Exonic sequences are the fragments that are transcripted and translated into proteins.
The correct option is b). Exons end up being expressed in the protein
You can learn ore about exons at
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Producers are found on what level of an energy pyramid
Answer:
first/ lowest level
Explanation:
Are there any parts of the human body that get oxygen directly from the air and not from the blood? Are there nuclear reactions going on in our bodies?
Answer:
The cornea is the only part of a human body that has no blood supply; it gets oxygen directly through the air. The cornea is the fastest healing tissue in the human body, thus, most corneal abrasions will heal within 24-36 hours.
Nuclear reactions do indeed occur in the human body, but the body does not use them.
How does the number of cell layers play a role in the function of an epithelial tissue?
Answer:
Epithelial tissues are widespread throughout the body. They form the covering of all body surfaces, line body cavities and hollow organs, and are the major tissue in glands. They perform a variety of functions that include protection, secretion, absorption, excretion, filtration, diffusion, and sensory reception.
The model shows what happens to chromosomes
during a certain part of the cell cycle.
A. Metaphase
B. Interphase
C. Telophase
D. Anaphase
What happens when sunlight strikes a chlorophyll molecule?
Electrons in the mitochondria.
Electrons in the chlorophyll molecule become energized and move.
Electrons within the cell membrane become energized and move.
Electrons within the cell's nucleus are transferred to the chlorophyll molecule.
Answer:
Electrons in the chlorophyll molecule become energized and move
Explanation:
PLEASE MARK ME BRAINLIEST IF MY ANSWER IS CORRECT PLEASEWrite the sequence of the mRNA strand that would be coded from the following strand of DNA:
TACCGAATTCGC
Please help me with this!!!
Answer:
DNA: TACCGAATTCGC
mRNA: AUGGCUUAAGCG
RNA: A=U, T=A, G=C
RNA contains Uracil and Thymine is no longer present
If the DNA is GGC ATC CAG, what is the corresponding mRNA?
Answer:
CCG UAG GUC
Explanation:
The complementary mRNA strands for DNA are shown below.
G = C
A = U
C = G
T = A
U = A
Using this, we can conclude that the corresponding mRNA is CCG UAG GUC.
hope this helps!
Gas exchange is more difficult for aquatic animals with gills than for terrestrial animals with lungs because _____. gills have less surface area than lungs water contains much less oxygen per unit volume than air water is less dense than air gills collapse in air gills allow only unidirectional transport
Answer:
Land animals breathe air.
Explanation:
Compare the relationship between carrying capacity and limiting factors
Answer:
The maximum population size that an ecosystem can support is called carrying capacity. Limiting factors determine carrying capacity. The availability of abiotic factors (such as water, oxygen, and space) and biotic factors (such as food) dictates how many organisms can live in an ecosystem.
Explanation:
1. Identify the compounds produced by the epidermis to protect against invasion.
Keratin is referred to the compounds produced by the epidermis to protect against invasion.
What is Epidermis?This is referred to the outermost layer of the skin and produces compounds such as keratin etc.
The keratin is responsible for the toughness of the skin and helps to prevent it from invasion of any kind.
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Select the correct answer. a patient has a history of poor nutrition. he has skin rashes, bleeding gums, and a cut that hasn’t healed in a long time. what vitamin deficiency most likely caused these symptoms? a. vitamin a b. vitamin b6 c. vitamin b12 d. vitamin c e. vitamin e
A patient has a history of poor nutrition. he has skin rashes, bleeding gums, and a cut that hasn’t healed in a long time. what vitamin deficiency most likely caused these symptoms vitamin c.
Which disease is caused by vitamin B6?Vitamin B6 deficiency causes peripheral neuropathy and a pellagra-like syndrome, with seborrheic dermatitis, glossitis, and cheilosis, and, in adults, can cause depression, confusion, electroencephalogram abnormalities, and seizures.
Thus, the correct option is "D".
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Answer:
D. Vitamin C
Explanation:
PLATO
Which membrane protein maintains the concentration gradients of ions across a neuronal membrane?.
Answer:
The sodium-potassium pump moving Na+ ions out and K+ ions in. The sodium-potassium pump moving Na+ ions out and K+ ions in - this channel maintains the ion concentration gradients across a neuronal membrane.
Explanation:
Got the answer from quizlet
What is the twisted zipper shape of DNA called?
Answer:
[tex]I~am~beinggreat78~and~will~help~you![/tex]
The shape of DNA is called a Double Helix. This shape is often referred to as a, "spiral staircase".
In multicellular organisms, the process of cell division leads to _________.
A. a decrease in cell number
B. an increase in cell number
C. the death of many cells
D. a destruction of all cells
Answer:
B. An increase in cell numbers
Explanation:
It adds more cells for cell divison they increase in numbers.
-Hope This Helps!
-Justin:)
Answer:
B. Increase in cell Number
Explanation:
Cell divisision is the process in which a cell divides itself to create new cells. Therfore increasing the cell number.
What if all the micro organisms go on leave for few days.
Explanation:
Hey mate here's your answer :-
The entire food webs of these dark, abyssal worlds would collapse. Shallower oceans would fare little better. Corals, which depend on microscopic algae and a surprisingly diverse collection of bacteria, would become weak and vulnerable.Hello people ~
Appearance of vegetative propagules from the nodes of plants such as sugarcane and ginger is mainly because
(a) nodes are shorter than intemodes
(b) nodes have meristematic cells
(c) nodes are located near the soil
(d) nodes have non-photosynthetic cells
(b) nodes have meristematic cells
Explanation:nodes have meristematic cells for the formation of new cells in seedlings
→ rapid buildup of tissues in many parts of the plant
Based on the food web shown, which organism is the primary consumer?
Answer:
The grass hopper, rabbit, and the slug are primary consumers.
Explanation:
They are all herbavores and at the second lowest part of the food web (the first being the grass
