Answer: it’s fertilization
Explanation: Fertilization in flowering plants happens through a process called pollination. ... Fertilization occurs when one of the sperm cells fuses with the egg inside of an ovule. After fertilization occurs, each ovule develops into a seed. • Each seed contains a tiny, undeveloped plant called an embryo.
What is the function of nitrogen fixing bacteria
Answer:
microorganisms capable of transforming atmospheric nitrogen into fixed nitrogen (inorganic compounds usable by plants). More than 90 percent of all nitrogen fixation is effected by these organisms, which thus play an important role in the nitrogen cycle.
Which two phenomena are evidence that gravitational forces are attractive? Select two statements.
A. the rise and fall of the tides
B. atoms being held together in a molecule
C. a dropped object always falls toward Earth
D. microwaves passing through the atmosphere into space
Answer:
A. the rise and fall of the tides.
C. a dropped object always falls toward Earth.
Explanation:
Gravity is considered to be a universal force of attraction which acts between all objects that has both mass, energy and occupy space. Therefore, it acts in such a way as to bring objects together.
Additionally, the gravity of earth makes it possible for all physical objects to possess weight.
The two phenomena which are evidence that gravitational forces are attractive includes;
I. The rise and fall of the tides: this is caused as a result of the gravitational force of attraction exerted by the moon on earth.
II. A dropped object always falls toward Earth: this acceleration is due to the gravitational force of attraction between the Earth and the object.
Which direction does blood flow in arteries?
it flows towards the heart
how can fear be a barrier to help seeking
Explanation:
Fear is a barrier as people fear being judged for things as there might be a stigma attached to it. When people are judged their problem isn't solved and instead worsened and they will feel compelled to keep their problems to themselves.
in humans, color blindness is caused by a recessive gene linked to the x chromosome. Normal vision is
determined by the dominant allele of this gene. A child with color blindness was born from the marriage of
parents with normal vision. Determine the likelihood of having a healthy baby.
Выберите один ответ:
:
a. 100%
O b. 75%
O c. 50%
O d. 25%
Answer:
C
Explanation:
herniit, green cribs
D. whale shark and giant squid
TEST II. MATCHING TYPE. Match Col. A with Col:B-Write the letter of the correct answer
bd
ka tre number.
COLUMNA
COLUMNB
1. Organism that can make their own food
2. Organisms that eat both plants and animals
3. Consists of two or more food chains
4. Series of organisms in which organism feeds on
another organism
5. Break down dead organism and their wastes
6. Organisms that feed on plants only
7. Get the energy by feeding on plants and other organism
consumers
8. Organisms that eat meat only
9. Organisms that eat both plants and animals
consumers
10. Organisms that feed on dead animals and wastes
A. carnivores
B. consumer
C. decomposers
D. food chain
E. food web
F. herbivores
G.omnivores
H. primary
B
А A
1. producers
J. secondary
K. scavangers
Answer:
Here's the answer:
(I.) Producers(G.) Omnivores(E.) Food web(D.) Food chain(C.) Decomposers(F.) Herbivores(H.) Primary(A.) Carnivores(J.) Secondary(K.) ScavengersExplanation:
I'm not 100% confident but I'll post an edit if necessary.
Tortoiseshell cats have an extra sex chromosome which causes their mottled fur colors; the different colors are a result of different X chromosomes being activated in random cells. This is called:
a. x-inactivation
b. x-expression
c. x-activation (not this, I know because I submitted and it's not this)
d. y-inactivation
Answer:
A. X-inactivation
Can someone plz help me
I need help with this!
bt bb bz bz bs bs db h bj bg
Explanation:
hajans
pls help asAP PLS❗❗❗❗❗❗❗❗❗❗❗❗❗❗
Living organisms need energy to carry on their life processes. Green plants get this energy by undergoing photosynthesis.
During photosynthesis, plants absorb energy from sunlight, they take in water from the soil using their roots, and they take in carbon dioxide from the atmosphere. What is produced in the leaves of plants, in addition to oxygen?
Question 4 options:
A. sugar
B. minerals
C. hydrogen
D. all of these
Answer:
A.sugar
Explanation:
In the process of phorosynthesis, the plants absorb energey from the sunlight, and with the water they have in the soil and the carbon dioxide they can absorb from the air, they´d produce carbohydrates or sugar and oxygen, in the chemical process of photosynthesys 6 molecules of water are mixed with 6 molecules of carbon dioxide, with addition of solar energy and form 6 molecules of sugar and 6 molecules of oxygen.
What are histones, and how are they arranged in nucleosomes? Drag the terms on the left to the appropriate blanks on the right to complete the sentences. Not all terms will be used.
a. lysine and arginine
b. histidine
c. five
d. four
e. eight
f. glycine and proline
g. two
h. one
Histones include_______ main classes of relatively small basic proteins containing relatively large amounts of_______ . Nucleosomes are made of________ each of_______ types of histones.
Answer:
1) c. five
2) a. lysine and arginine
3) g. two
4) d. four
Explanation:
A nucleotide can be defined as an organic molecule which forms the building block of nucleic acid such as deoxyribonucleic acid (DNA) and ribonucleic acid (RNA).
Basically, nucleotide comprises of the following parts;
1. Nitrogenous base: this includes adenine (A), thymine (T), guanine (G), and cytosine (C) which are mainly found in the DNA while adenine (A), guanine (G), uracil (U) and cytosine (C) are found in the RNA.
2. A phosphate group.
3. A penrose sugar: it is either deoxyribose in DNA or ribose in RNA.
The two parts or chemical components of a nucleotide which do not change throughout the structure of DNA are;
I. Five-Carbon Sugar also known as deoxyribose and it has hydrogen on its second carbon.
II. Phosphate: this is the structural backbone that provides support to DNA.
Histones are a group of highly basic proteins that are mainly associated with deoxyribonucleic acid (DNA) in the nucleus of a living organism and then condense it to chromatin.
Histones include five main classes of relatively small basic proteins containing relatively large amounts of lysine and arginine. Nucleosomes are made of two each of four types of histones.
Light reactions occur inside of the thylakiod membranes and they produce oxygen, ATP, and NADP
True
False
The artery that will eventually subdivide to form the posterior cerebral arteries is the _____ artery.a) basilarb) external carotidc) maxillaryd) superficial temporale) nternal carotid
Answer:
a) basilar
Explanation:
The basilar artery is an artery whose function is to supply of blood to the brain and central nervous system, thereby transporting oxygenated blood to the brainstem, cerebellum, and occipital lobes for maintaining normal brain function. This artery is 3 to 4 mm in diameter. The basilar artery is formed from the confluence of two vertebral arteries inside the cranium at the level of the medulla. The posterior cerebral arteries are formed by the bifurcation of the basilar artery, and they supply oxygenated blood to the occipital lobes and posteromedial temporal lobes.
Scientific theory is based on
A) Data collected over time
B) A general claim by scientist
C) The best guesses of a scientist
D) an idea that can be proven true
Answer:
I think it's D
Explanation:
Cause usually a scientist creates a hypothesis or theory so they can prove that it's true.
¯\_(ツ)_/¯
Answer:
A) Data collected over time
I had corona awhile ago and now most things I eat and smell are not good?
Answer:
sorry for what u went through and that's sucks lol
HELP PLEASE! What is the independent and dependent variable in this experiment and what would be the sample and target population and a generalization.
Will people pick up a dollar bill that is dropped on the floor in the airport during a pandemic?
Answer:
No.
Explanation:
The factors of an experiment is considered as independent because it does not change or not dependent on other while on the other hand, the data is the dependent variable due to its dependency on the treatments. No, people will not pick up a dollar bill which is dropped on the floor in the airport during a pandemic because they can't put their life in danger for a dollar. They knew that life is more important than money.
is the human population growth also a factor. for. causing deforestation? justify your answer giving reason
Answer:
Population growth, combined with other direct factors such as poverty, corruption, and weak property rights, contributes to forest loss and severe environmental degradation. Demand for forest and agricultural products to feed growing rural and urban populations will continue to put pressure on forests.
Explanation:
Plz help me I a, timed
Answer:
Your answer is A) precipitation.
if a person has a type O blood type, what type of blood can they only receive?
1.Organisms without a distinct nucleus
2 .Structures that display characteristics of living organisms only
within living cells
3. The close association between two organisms where one or both
benefit muclism
4. Disease caused by a virus that leads to a gradual destruction of th
mmune system
5. Process by which bacteria break organic matter into simple
utrients which are then returned to the so
A term used to describe organisms that cause diseases e.g. bacteria
PLEASE HELP!! I’m very confused
Answer:
mRN: CAU GCG CAU AUG GCU CUA G
Explanation:
DNA to mRNA
• Possible Bases: Adenine, Thymine, Cytosine, Guanine, Uracil (RNA only)
• G↔C, A→U, T→A
• A and G are purines (double‐ring), C, T, and U are pyrimidines (single‐ring)
Which of the following characteristics only pertains to chloroplasts?
Answer:
Chloroplasts are a type of plastid—a round, oval, or disk-shaped body that is involved in the synthesis and storage of foodstuffs. Chloroplasts are distinguished from other types of plastids by their green colour, which results from the presence of two pigments, chlorophyll a and chlorophyll b.
Explanation:
I hope this helps and pls mark me brainliest :)
PLEASE HELP!!!
What are sections of a DNA molecule called ? Genes
Proteins
Amino acids Carbohydrates
Explanation:
Genes
..................
A hypothetical bat species (species 1) lives in a city. Another hypothetical bat species (species 2) established a population in the same city after a number of individuals escaped from a zoo. In isolation, each species prefers to roost in buildings that are three or more stories tall. After species 2 became established in the city, species 1 began roosting only in buildings less than three stories tall, whereas species 2 roosted in buildings three or more stories tall. Observers determined that the bright streetlights at ground level had previously deterred most bats from roosting in shorter buildings. Over many generations of existing in the same city with species 2, species 1 showed changes in eye size and retina structure. Complete the following statements about the two bat species.
_________ of species 1.
a. fundamental niche
b. realized niche
c. character displacement
d. intraspecific competition
e. interspecific competition
f. (-\-)
g. resource partitioning
h. competitive exclusion
Complete question:
A hypothetical bat species (species 1) lives in a city. Another hypothetical bat species (species 2) established a population in the same city after a number of individuals escaped from a zoo. In isolation, each species prefers to roost in buildings that are three or more stories tall. After species 2 became established in the city, species 1 began roosting only in buildings less than three stories tall, whereas species 2 roosted in buildings three or more stories tall. Observers determined that the bright streetlights at ground level had previously deterred most bats from roosting in shorter buildings. Over many generations of existing in the same city with species 2, species 1 showed changes in eye size and retina structure. Complete the following statements about the two bat species.
Roosting areas in buildings of any height are the _________ of species 1.Roosting areas in buildings of any height are the _________________ of both bat species.____________ between the two bat species occurs because both species prefer the same roosting areas.In parts of the city with only tall buildings (over two stories), __________ of species 1 may occur.Roosting areas in buildings that are one to two stories tall are the __________ of species 1 when species 2 is present.a. fundamental niche
b. realized niche
c. character displacement
d. intraspecific competition
e. interspecific competition
f. (-\-)
g. resource partitioning
h. competitive exclusion
Answer:
Roosting areas in buildings of any height are the fundamental niche of species 1.Roosting areas in buildings of any height are the fundamental niche of both bat species.Interspecific competition between the two bat species occurs because both species prefer the same roosting areas.In parts of the city with only tall buildings (over two stories), competitive exclusion of species 1 may occur.Roosting areas in buildings that are one to two stories tall are the realized niche of species 1 when species 2 is present.Explanation:
The ecological niche is the synthesis of all the environmental factors that influence the growth, survival, and reproduction of species. These factors also include the interaction between species. The fundamental niche refers only to environmental conditions in which a species can live and survive in the absence of any interaction with other species. The realized niche refers to the restricted conditions in which a species can live and survive as a result of environmental physic characteristics and the interaction with other species.Interspecific competition refers to the interaction between two or more species that use the same fundamental niche. These species compete for the same resources like food, shelter, or water, among many others. Eventually one of the species dominates and the other is displaced. Competitive exclusion refers to the exclusion of the inferior competitor by the superior competitor when there is not habitat differentiation, and both species can not share the same niche. In this case, the effective niche of the dominant species completely occupies the fundamental niche of the inferior competitor. Resources partitioning refers to one dominant species monopolizing the resources, and the other inferior species use other resources -partially or completely -, migrate or get extinguished.A way in which species can divide resources is by living in different habitat areas. These species might eat the same food, and can roost in different places within the habitat. This resource partitioning and differentiation in the function of their physical location allows both species to coexist more effectively.
In the present example, both bat species can coexist in the same city but the weaker bat species (species 1) roost at the top of the shorter buildings while dominant species (species 2) roost at the top of the highest buildings.
If the first trophic level in an energy pyramid receives 1,000 units of energy from the Sun, how much energy is available for the third trophic level?
Answer:
10 units
Explanation:
Energy is transferred from organism to organism in an ecosystem when they feed on one another. However, based on the pyramid of energy, only about 10% of energy is transferred from one organism to another because a bulk of energy (about 90%) has been lost to metabolic activities.
Energy moves from producers to consumers, each occupying trophic levels. If the first trophic level in an energy pyramid receives 1,000 units of energy from the sun,
- 10% of 1000units will be available for the second trophic level i.e. 10/100 × 1000 = 100units
- 10% of 100units will be available for the third trophic level i.e. 10/100 × 100 = 10units
Hence, 10units of energy is available for the third trophic level.
what are electromagnetic waves
Answer:
Electromagnetic waves are formed when an electric field comes in contact with a magnetic field. They are hence known as 'electromagnetic' waves.
Explanation:
Answer:
they are basically electromagnetic radiation which refers to the electromagnetic field. they propagate through space carrying electromagnetic radiant energy. they include radio waves, microwaves, infrared waves, light, ultraviolet, x-rays, and gamma rays.
Suppose a researcher successfully produced a membrane composed of saturated triglycerides rather than from phospholipids. What characteristics would you expect the saturated triglyceride membrane to have?
A. hydrophilic molecules would easily pass through the membrane.
B. hydrophobic molecules would be attracted to the membrane.
C. the membrane would be fluid at room temperature
D. the saturated triglycerides would not form a bilayer.
Answer:
B. hydrophobic molecules would be attracted to the membrane.
D. the saturated triglycerides would not form a bilayer.
Explanation:
Triglycerides are molecules composed of a higher proportion of saturated fatty acid chains where carbons are connected by single bonds. Triglycerides are hydrophobes, i.e., they are nonpolar hydrophobic molecules. In this case, it is expected that hydrophobic molecules, including triglycerides, would be attracted through hydrophobic interactions (between water and hydrophobes). Triglycerides contribute to maintain the structure of the cell membranes by forming a lipid bilayer. Unlike phospholipids, triglycerides lack a polar group (phospholipids contain charged phosphate groups), and therefore triglycerides are unable to orient themselves in order to form a bilayer.
Which refers to the vascular tissue that carries water and nutrients from the roots up the plant?
Answer:
nothing
Explanation:anyways the x value is on your teachers but
Does a Hematopathologist work with unicellular or multicellular organisms? Select the BEST answer.
Select one:
a. Multicellular
b. Both equally
c. None
d. Unicellular
Answer:
b
Explanation:
A hematopathologist is a health care professional who works with the unicellular or multicellular organisms, both equally. Thus, the correct option will be B.
Who is a Hematopathologist?Hematopathologists can be referred to as the specially trained healthcare professionals who are responsible for the diagnosis of the diseases related to the different types of blood cells.
Hematopathologists use the specialized tests such as flow cytometry studies and the immunohistochemistry. The hematopathologist uses the results of these tests for the analysis and diagnosis of the infections and diseases of the blood, lymph nodes and the bone marrow.
A hematopathologist works with both the unicellular and multicellular organism equally.
Therefore, the correct option will be option B.
Learn more about Pathology here:
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A man and a woman have recently married , unfortunately they didn't have any children yet. What do you think are the reasons for delayed pregnancy ?
Answer and I will give you brainiliest
Answer:
Late ovulation
explanation
it can delay pregnancy, but that doesn’t mean it won’t happen. It’s entirely possible to conceive when you ovulate later in the cycle; the trick is to be as in tune with your body as possible. By knowing exactly what to look out for, you'll soon be able to tell when you are eventually ovulating.
"Several common reasons for a late period include stress, low body weight, obesity, different hormonal syndromes, birth control, and chronic diseases,"
Is cloning and genetic engineering ethical?
Answer:
yes.....................
Answer:
It lies on your perspective
Explanation:
If you clone a human because that is the perfect human, or you genetic engineer a human to make the perfect human, society will benefit, but will the clone/engineered human benefit? As I already said, it is all about perspective.