Answer:
Oocyte: A cell in a ovary which may undergo meiotic division to form an ovum
which cell organelle is the site of cellular respiration in most types of living things?
what type of cells carry out cellular respiration
Touch the stigma and notice how it feels. What is the advantage of this type of texture?
A. The sticky texture allows for capture of prey to help with fertilization
B. The sticky texture allows for the exchange of carbon dioxide to assist with photosynthesis.
C. The sticky texture allows for pollen to adhere to the stigma for fertilization.
D. The sticky texture allows for water molecules to not escape from the plant, thus preventing dehydration.
Which of the following is true about genes?
A.
The genes of a particular organism can never change throughout its lifetime.
B.
In humans, genes are passed to an offspring from two parents.
C.
Genes are responsible for all the traits of an organism.
D.
Genes are made up of smaller molecules known as chromosomes.
Answer:
I think d is I thinks only
Answer:
answer is c
Explanation:
i'm on the same topic as you and hope im right
Can someone help me with question 1 pls:)
answer:
c d e
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hopefully, this helps
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Transcribe the following DNA sequence (use a different color for the mRNA strand, and remember that RNA has uracil instead of thymine):
DNA: G A T C G A T A C C A T T C G G C G C A T A C T T C G
Answer:
C U A G C U A U G G U A A G C C G C G U A U G A A G C
Explanation:
this is the complementary strand in mRNA.
A=U
G=C
C=G
T=A
this is the answer key to any mRNA strand.
Hope this helps! :)
The DNA has adenine (A), cytosine (C), guanine (G), and thymine (T) bases whereas RNA is composed of adenine (A), cytosine (C), guanine (G), and Uracil(U).
What is transcription?It is the process by which RNA is formed from a DNA molecule.
What is the pairing?A pairs with U, C pairs with G, G pairs with C, and T pairs with A. The first base of each pair belongs to the template strand of the DNA while the other is RNA.
What will be the sequence of RNA?DNA: G A T C G A T A C C A T T C G G C G C A T A C T T C G
RNA: C U A G C U A U G G U A A G C C G C G U A U G A A G C
To learn more about DNA and RNA here,
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What has happened to Earth due to the pollution?
Answer:
OCEAN LITTER
Litter in the world’s oceans comes from many sources, including containers that fall off ships during storms, trash that washes off city streets into rivers that lead into the sea, and waste from landfills that blows into streams or directly into the ocean. Once in the ocean, this debris may degrade slowly and persist for years, traveling the currents, accumulating in large patches and washing up on beaches.
PESTICIDES AND FERTILIZERS
Use of pesticides and fertilizers on farms has increased by 26-fold over the past 50 years, fueling increases in crop production globally. But there have been serious environmental consequences. Indiscriminate pesticide and fertilizer application may pollute nearby land and water, and chemicals may wash into nearby streams, waterways and groundwater when it rains. Pesticides can kill non-target organisms, including beneficial insects, soil bacteria and fish. Fertilizers are not directly toxic, but their presence can alter the nutrient system in freshwater and marine areas. This alteration can result in an explosive growth of algae due to excess nutrients. As a result, the water is depleted of dissolved oxygen, and fish and other aquatic life may be killed
AIR POLLUTION
Air pollution brings to mind visions of smokestacks billowing black clouds into the sky, but this pollution comes in many forms. The burning of fossil fuels, in both energy plants and vehicles, releases massive amounts of carbon dioxide into the atmosphere, causing climate change. Industrial processes also emit particulate matter, such as sulfur dioxide, carbon monoxide and other noxious gases. Indoor areas can become polluted by emissions from smoking and cooking. Some of these chemicals, when released into the air, contribute to smog and acid rain. Short term exposure to air pollution can irritate the eyes, nose and throat and cause upper respiratory infections, headaches, nausea and allergic reactions. Long-term exposures can lead to chronic respiratory disease, lung cancer, and heart disease. Long-term exposures also can lead to significant climatic changes that can have far reaching negative impacts on food, water and ecosystems.
NOISE AND LIGHT POLLUTION
Artificial light and noise often drown out natural landscapes. In the Arctic, the sounds of oil and gas explorations are so loud that belugas, bowhead whales and other sea life have had difficulty feeding and breeding. Light pollution disrupts circadian rhythms for both humans and animals alike and may even contribute to the development of cancer. Light pollution also can impact sea turtles. Adult and hatchling sea turtles are drawn toward lights along the beach, thinking they are heading toward the moon. Coastal developments, therefore, are encouraged to turn off their lights or cover them at night
Explanation:
How are the diverse living organisms within a biome dependent upon each other and the nonliving parts of their environment? Give specific examples.
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This incorrect copy is known as a
A.
mutation.
B.
protein.
C.
duplicate.
D.
codon.
Why is it important that courts create the expectation that business will be
conducted fairly?
Why are healthy bodies of water important to our Earth as a system?
Answer At heart, all life on Earth uses a membrane that separates the organism from its environment.
Answer:
At heart, all life on Earth uses a membrane that separates the organism from its environment. ... In this regard, water is essential simply because it's a liquid at Earth-like temperatures. Because it flows, water provides an efficient way to transfer substances from a cell to the cell's environment
Explanation:
Put this In a simpler form
An organism has many cells, but cannot move. It does not eat food, but cannot perform photosynthesis cither. What kingdom does it belong to? A,Kingdom fungi, B,Kingdom plantae, C,Kingdom Protista D,kingdom Animalia
Answer:
Explanation:A,Kingdom fungi
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Answer:
1 red, 2 pink, 1 white
Explanation:
RW x RW = 1 RR, 2 RW, 1 WW
I assume that RR is red, RW is pink, and WW is white
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i would really appreciate it if someone can helpp!!!
Answer: IM NOT SHORE but when you have to BB its 100% black and the parent of that one will pass on B always. the white mouse is bb this is a resistive trait.
Explanation:i hope i help you sorry if it didnt but i tired my best
Please help I need the term’s definitions
17 points,
don’t copy and paste
Answer:
There you go :3
Explanation:
Paramecium- A single-celled freshwater animal that has a characteristic slipper-like shape and is covered with cilia.
Protist- A single-celled organism of the kingdom Protista, such as a protozoan or simple alga.
Protozoan- A single-celled microscopic animal of a group of phyla of the kingdom Protista, such as an amoeba, flagellate, ciliate, or protozoan.
Pseudopod- A pseudopod or pseudopodium (plural: pseudopods or pseudopodia) is a temporary arm-like projection of a eukaryotic cell membrane that are developed in the direction of movement.
Pellicle- Pellicle (biology), a thin layer supporting the cell membrane in various protozoa. Pellicle mirror, a thin plastic membrane which may be used as a beam splitter or protective cover in optical systems.
Slime Mold- Any of a group (such as Myxomycetes) of organisms formerly held to be lower fungi but now often considered protists that exist vegetative in usually moist habitats as mobile plasmodia and reproduce by spores.
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What statement is true of channel and carrier proteins?
A. Channel and carrier proteins always move substances from the side of the membrane with the highest concentration to the side with the lowest concentration.
B. Channel and carrier proteins always move substances from the side of the membrane with the lowest concentration to the side with the highest concentration.
C. Channel proteins undergo a shape change, while carrier proteins do not.
Answer:
A
Explanation:
Channel and carrier proteins are both considered facilitated diffusion. We also know that materials do not like to go against the concentration gradient so we can eliminate B.
Which structure does the immune system target in type 1 diabetes?
a. beta cells of the pancreas
b. liver cells that release glucose
c. insulin receptors on fat cells
d. red blood cells in the bloodstream
Answer:
The thymus plays an important role in deletion of potentially autoreactive T cells. However, the presence of islet-specific T cells in the circulation of type 1 diabetes patients and healthy subjects indicates that the thymus is not capable of efficiently deleting all autoreactive T cells (Mathis and Benoist 2009).
Explanation:
Answer:
A: beta cells of the pancreas
Explanation:
Type 1 diabetes makes the pancreas produce little to no insulin.
Which sentence best represents the relationship between the process of subduction and the rock cycle?
A.
Subduction creates rocks.
B.
Subduction destroys rocks.
C.
Subduction recycles rocks.
D.
Subduction sorts rocks.
Answer:
C. Subduction recycles rocks.
The highlighted part please
Which of the following describes erosion caused by glaciers?(2 points)
It forms big ice chunks.
It changes the temperature.
It happens quickly.
It takes a long time.
Answer:
It takes a long time.
Answer:
it forms big ice chunks but the answer is it take a long time
Explanation:
glaciers are formed by snow that does not completely melt and stratify. when snow is under the influence of super layers it initially turns into pieces of ice and over time turns into glaciers
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:With an increase in global climate change occurring, explain some possible effects global
climate change can have on organisms
Answer: rising sea levels
Harsher/more frequent natural disasters
DNA replication occurs during which phase of the eukaryotic cell cycle?
S phase
G1 phase
G2 phase
M phase
Answer: your awnser would be A
Explanation:
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Which structure mainly functions in intracellular transport?
a. Centriole
b. Endoplasmic reticulum
c. Vacuole
d. Lysosome
Answer:
i'm pretty sure it's the endoplasmic reticulum
Explanation:
PLEASE HELP
Explain the difference between Positive and
Negative Tropism
Answer:
Tropism can be called positive or negative. Positive tropism is movement or growth towards a stimulus, whereas negative tropism is the movement or growth away from a stimulus.
Explanation:
Positive Tropism is growing towards a stimulus.
Negative Tropism is growing away from a stimulus.
Complete each statement to describe sexual reproduction.
The
is the male sex cell.
The
is the female sex cell.
A
forms as a result of fertilization.
Answer: sperm.... egg.... zygote
Explanation: hope this helps
Answer: The sperm is the male sex cell.
The egg is the female sex cell.
A zygote forms as a result of fertilization.
Explanation:
Earliest eon of the earth's history
A. Cenozoic Era
B. Precambrian
C. Trilobite
D. Mesozoic Era
Answer:
B-Precambrian is the earliest part of earth's history
Which of the following statements is true about mutations?
A. It is a source of genetic variation
B. Rates tend to be very high in most populations.
C. It is generally lethal
D.It affects only somatic cells
Answer:
A. It is a source of genetic variation
100 POINTS AND BRAINLY IF CORRECT PLEASEE HELP ME
Answer:
A) Nitrogen is cycled through living and non-living components of the ecosystem.
Explanation:
Nitrogen cycles shows and tells you how it travels from plants, animals, bacteria, the air, and the soil. (Both living and non-living organisms.) Nitrogen has to go into different states to go through each organism, living and non-living.
What type of pathogen is salmonella
Answer:
Salmonella is a genus of rod-shaped (bacillus) Gram-negative bacteria of the family Enterobacteriaceae. The two species of Salmonella are Salmonella enterica and Salmonella bongori. S. enterica is the type species and is further divided into six subspecies that include over 2,600 serotypes.
Explanation:
Answer: Ok Salmonella is a genus of rod-shaped (bacillus) Gram-negative bacteria of the family Enterobacteriaceae. The two species of Salmonella are Salmonella enterica and Salmonella bongori. S. enterica is the type species and is further divided into six subspecies that include over 2,600 serotypes.Salmonellosis is an infection with a bacteria called Salmonella, Salmonella live in the intestinal tracts of animals, including birds. Salmonella are usually transmitted to humans by eating foods contaminated with animal feces. Every year, approximately 40,000 cases of salmonellosis are reported in the United States.
Organism classification: Salmonella enterica
Lower classifications: Salmonella bongori
Diseases: Typhoid fever
Higher classification: Enterobacteriaceae
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