The part of the plant that is involved in the production of gametes is known as the carpel. It contains the ovary where the eggs, or ovules, are located.
How gamete is produced in angiosperm?In angiosperms, gametes are produced by the gametophyte generation. Angiosperm gametophytes are associated with flowers. The gametes they produce join to form the sporophyte.
Within the flower, sperm cells are produced by pollen at the tips of stamens, while egg cells develop in ovules, tiny structures embedded in the ovary at the base of the pistil.
Stamen and carpel are the male and female reproductive structures of the plant, respectively. Both pollen and egg are fertilized in order to produce seeds which refer to the reproductive system of the plant. While the phloem and xylem govern the shoot system of the plant.
Therefore, the part of the plant that is involved in the production of gametes is known as the carpel. It contains the ovary where the eggs, or ovules, are located.
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Will give brainest!!!!
Why do we perceive reversible figures?
a) The retina in the eye is influenced by the brain's cortex to interchange shapes and images.
b) Our brains cannot decide on just one interpretation of a picture.
c) Our brains play tricks on us when we consume too much caffeine.
d) Sensory information comes in too fast for us to target just one figure.
Answer:
C
Explanation:
PLZ MARK ME AS BRAINLIEST
Answer:
b) Our brains cannot decide on just one interpretation of a picture.
Describe the difference between genetic drift and gene flow.
Answer:
Gene flow is the process of alleles going from one population to another while genetic drift is the alteration of allele frequency in a gene pool. The cause of gene flow is migration or geographical isolation while that of genetic drift is random sampling with two mechanisms
Explanation:
PLS HELP*giving BRAINLIEST with 20 points* (foolish answers will be reported)
Summarize how the new mRNA vaccine for coronavirus works (use the word translation and transcription)
Answer:
it works
Explanation:
it works to some people.But who are so serious were dangerous.It will increase immunity power.
Provide an explanation as to why all of the parakeet offspring look different, even though they have the same parents.
Answer:
The parents have different genes
Explanation:
The parents are hybrids, and are carriers of certain genes and traits :)
A substance which releases more H+ ions in solution than OH- ions must be a(n):
A.) acid
B.) base
C.) alkaline substance
D.) neutral substance
whats the formula of Phenylalanine?
Answer:
C 9H 11NO 2
Explanation:
A scientist isolated DNA from a particular bacterium and decided to analyze it. The sequence of the bacterial DNA is ATGGGCTAGTCTT. What will the complementary strand be?
A.
TACCCGATCAGTTA
B.
TACCCGATCAGAA
C.
TACCCGAGGCGAA
D.
TACAAGATCAGAA
Answer:b
Explanation:
Organelles are structures within the cell that perform important functions. Which of the following correctly matches the
organelle with its relationship to the whole cell?
Answer:
mitochondria: powerhouse of the cell
Ribosomes: the places where proteins are synthesized in our cells.
nucleus houses DNA;controls cell
Vacuole: holds waste and fluids from cell
Ribosomes: tiny organelles that contain RNA and specific proteins within the cytoplasm.
Explanation:
Organelles make up the subunits of a cell. There are numerous each with their own function.
There are various cell organelles that play an essential function these are as follow:
MitochondriaNucleusChloroplastEndoplasmic reticulumGolgi bodiesRibosomePeroxisomeWhat is the different role of cell organelles?Mitochondria: Generates energy (ATP) for the biochemical reaction.
Nucleus: Responsible for the synthesis of mRNA, rRNA, tRNA and DNA.
Chloroplast: responsible for Photosynthesis by using sunlight in plant cells.
Endoplasmic reticulum: carry Protein(RER) and lipid synthesis(SER).
Golgi bodies: play role in protein sorting, transporting and trafficking.
Ribosome: two types of ribosomes are present in the cell-free ribosome and membrane-bound ribosomes, responsible for the synthesis of protein.
Peroxisome: play role in fatty acid oxidation and metabolism.
Thus, all these organelles play important functions in cells.
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how does photosynsthesis take place in thylakoid?
Answer:
Water (H2O) is oxidized, and oxygen (O2) is released. The electrons that freed from the water are transferred to ATP and NADPH.
An allele whose trait is masked (weaker) in the presence of a stronger allele
Answer:
There are 2 alleles, a recessive allele and a dominant allele. The weaker allele is the recessive allele.
please help ASAP will mark brainliest
Answer:low turgor pressure
Explanation:
whitch of the following is not likely to be a fossil A. a piece of bone. B.a tooth C.a footprint D.a rock
Answer:
A
Explanation:
The process where severe droughts cause some lands to become deserts is called __(blank)__ pls help and ty! :))
Answer:
Desertification
Hope this helps!
You have stem cells in your body. Where do you think the stem cells are located?
Answer:
in the
brain
lung
liver
heart
Explanation:
If you want more you can tell me
What medical conditions do scientists hope botulinum will help? Check all 4 points that apply. * hyperactive muscles Parkinson's disease cerebral palsy common cold K Mc
Answer:
hyperactive muscles
Parkinson’s disease
cerebral palsy
Match each item.
1. right atrium
A. controls heartbeat
2. superior vena cava
B. sends blood to heart from upper body
3. inferior vena cava
C. brings blood from lungs to heart
4. pulmonary vein
D. sends blood from heart to lungs
5. pulmonary artery
E. sends oxygenated blood from heart to body
6. aorta
F. sends blood to heart from lower body
Answer:
58
Explanation:
;$+. kw. is isn't is. is
Since invasive species did not co-evolve with the other species in the ecosystem where they were introduced _______. a. they can unbalance the ecosystem b. they are considered a serious environmental problem c. they lack natural predators to help control their population d. all of the above i will give brainliest
Answer:
The Answer is All of the above.
Explanation:
Hope this helps:)
Since invasive species did not co-evolve with the other species in the ecosystem where they were introduced they lack natural predators to help control their population. Thus, option D is correct.
What is Invasive species?Invasive species can be defined the species that are introduced intentionally or unintentionally in an environment. These species might adopt the environment in which they are placed or might not get involved in the environment.
Invasive species often unbalance in the ecosystem because they did not co-evolve and fit into the ecosystem as they are not controlled by the natural control like predators. This creates ecological imbalance.
An invasive species is a species that not belongs to that land where they are living and was introduced to that ecosystem naturally or deliberately to cause harm to that system as Invasive species have tendency to spread to a degree believed to cause damage to the environment, human economy or human health.
Therefore, Since invasive species did not co-evolve with the other species in the ecosystem where they were introduced they lack natural predators to help control their population. Thus, option D is correct.
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What does a natural monopoly arise?
Answer:
Natural monopolies arise where the largest supplier in an industry, often the first supplier in a market, has an overwhelming cost advantage over other actual or potential competitors; this tends to be the case in industries where fixed costs predominate, creating economies of scale that are large in relation to the ___.
Hope this helped a bit! :)
Can someone help with this. 15 points.
Answer:
I think that it is A
Explanation:
since the farther the galaxy, the greater the red shift, the faster that galaxy is moving away from us.
Hope this helps
What is the main cause of competition between two species?
Answer: Overlap in niches-
Explanation:
Breaking nutrients into smaller units to
release the chemical energy (ATP) stored in
them through the process known as...
a. Enzymes
b. Digestion
c. Photosynthesis
d. Cell Respiration
Answer:
answer is A
Explanation:
:)
PLSSSSS HURRY
Scientists develop new wind farms in a town that relies on oil fracking. Which statement describes an outcome in support of this change?O Electricity is distributed to different areas. O An increase in greenhouse gas emissions occurs. OAnimal migration routes change due to altered wind patterns. OAn inconsistent supply of energy occurs at residential locations.
Answer:
its c
Explanation:
i know it is
Answer:
c
Explanation:
best choice
Which statement about anaerobic respiration is true?
A-Anaerobic respiration prevents muscle fatigue.
B-Anaerobic respiration generates a high yield of ATP.
C-Anaerobic respiration is used commercially in the production of beer, wine, bread, yogurt, and cheese.
D-Anaerobic respiration can provide energy to animals for several days in the absence of oxygen.
Answer:
C
Explanation:
C-Anaerobic respiration is used commercially in the production of beer, wine, bread, yogurt, and cheese.
Easy question/points
Which two terms best describe all animals?
O Eukaryotes and Autotrophs
O Eukaryotes and Heterotrophs
O Prokaryotes and Autotrophs
O Prokaryotes and Heterotrophs
Answer:
O Prokaryotes and Autotrophs
Explanation:
this ansser is right
How does Teresa act as a student? What does Victor do to try and impress her?
Answer:
im confussed i need more evidence
Explanation:
Bays teacher says that water can cause both physical weathering and erosion. Billy draws the following image in his notes.
What should Bily label his drawing?
A) physical weathering, because the rock is changing state from solid to liquid
B) erosion because some rock has been removed from the bank by the flow of water
C) physical weathering, because the water is being directed by the rock
D) erosion, because the water is unable to move through the rock
3. The diagram shows a section through a mesophyll cell of a leaf
Which part is partially permeable?
A-
0
B-
D
2 Page
Answer:
B- the cell membrane
Explanation:
Cell membranes are made up of lipids, proteins and cholesterol. These make up a selectively permeable layer that only allows for the movement of few molecules across the cell surface.
The lipid layer only allows for the passage of small non-polar molecules, while larger molecules require transport proteins to ferry other substances into the cell.
A)Using an example explain how enzyme and habitation exploited to control human diseases
B)Explain why the drug is poisonous to the Target organism but not to humans
Answer:
A. Rifampicin is an example of an enzyme inhibiting drug, since it acts on the bacterial RNA polymerase, preventing the transcription and synthesis of proteins, so the bacteria is not viable and a human disease is controlled.
B. The drugs have specificity by microorganisms —target organisms— which are also smaller and more susceptible, while their effect is minimal or null in human cells and are not poisonous for them.
Explanation:
Bacteria, viruses, parasites and pathogenic fungi are microorganisms capable of producing disease in humans. One of the ways to fight infectious diseases is the use of drugs called antibiotics, capable of interfering with the development of microorganisms.
Antibiotics or antibacterials are capable of preventing the synthesis of the bacterial wall or its reproduction, intervening in the synthesis of proteins. They do this through enzymatic inhibition of these processes.
Rifampicin is a drug capable of coupling itself to one of the sub-units of the RNA polymerase enzyme, changing its configuration and preventing its affinity for its substrate, the bacterial DNA. Rifampicin thus prevents the synthesis of proteins necessary for the development of the bacterium, which dies and thus manages to control an infectious disease.Drugs such as antibiotics act on specific bacterial functions —their target organism— by affecting the functions that allow them to live that allow them to live, as if they were poisoned. These same drugs have little or no effect on human cells when administered in appropriate doses. The few effects that are observed in human cells are not sufficient to kill them, but they do produce effects or secondary reactions, usually called adverse effects.Which of the following is not a characteristic of rivers and streams
Salt water
Explanation:
Answer: It's salt water
Explanation: hope it helps ^w^
The basic unit of structure and function of living things is the
nucleus
cell
tissue
membrane
HURRY PLS
Answer:
The Cell
Explanation:
One of the factors that make up the "Cell Theory" states that the cell is the basic unit of life.
Therefore, the correct answer would be a cell.
Hope this helps.