Answer:
Natural selection.
Explanation:
A plant tissue made of tubular cells stacked to form structures called tubes.
A. xylem
B. cambium
C. phloem
Answer:
C
Explanation:
Xylem are stronger and thicker tubes than the Phloem, and the Xylem are meant to bring nutrients and water from the roots too the leaves!
Phloem are much smaller, and much more brittle than the Xylem, and they also have a different job. These are meant to take the glucose made from photosynthesis and move it to the rest of the plant. These are made up of tubular cells, creating a vascular system.
What element do all organic compounds contain?
Carbon
Hydrogen
Nitogen
Oxygen
Answer:
carbon
Explanation:
carbon is a chemical element which exhibit a atomic mass of 12 and its a nonmetal
Why did gregor mendel study pea plants?
Answer:
Explanation:
If im correct, the pea plant study was a way to use plants with their different traits to study Dominant and Recessive traits in plants.
He crossed a smoother pea with a more wrinky one and used the offspring as a way to determine dominant and recessive phenotypes.
I may be incorrect but I hope this helps!
The first model represents the proton and neutron distribution in the nucleus of four helium isotopes. The second image shows the entry for helium in the periodic table. Based on the information in the periodic table, which is the most common isotope of helium?
Answer:
Helium exist as an isotope, its most common isotope is the one that is placed on the periodic table. The helium atom on the periodic table has two electrons, two protons and two neutrons. The proton and the neutron are located inside the nucleus, this means that two protons and two neutrons can be found inside the helium nucleus. Thus, in the pictures given above, the correct picture is the one that contain four particles.
Explanation:
forests are bio diversity hotspots why ?
Answer:
Read below
Explanation:
Forests have many different types of life because it offers a wide range of food and shelter for many organisms. (I'm sorry this isn't very long but it is why.)
match each part of a cell to its structural features.
1.lager size in plant cells----->
2.salt and water base----->
3.grainy appearance----->
4.permeable and flexible---->
a.cytoplasm
b.cell membrane
c.rough endoplasmic reticulum
d.vacuole
Answer:
1)vacuole covers most part in a plant cell
2)cytoplasm is a salty and water base
3)rough endoplasmic reticulum has a grainy appearance
4)The cell membrane is flexible and semi-permeable
Answer:
)vacuole covers most part in a plant cell
2)cytoplasm is a salty and water base
3)rough endoplasmic reticulum has a grainy appearance
4)The cell membrane is flexible and semi-permeable
Explanation:
An important similarity between photosynthesis and cellular respiration is that both processes
use and store 02
use and make ATP.
store energy in glucose.
release energy from glucose.
Answer:
use and make ATP.
Explanation:
Pluto dwells on the inner edge of the
A. Oort Cloud
B. Main asteroid belt
C. Kuiper belt
Which of these statements indicates an experiment is systematic?
A. The experiment is repeated many times.
B. The experiment is about a testable question.
C. The experiment is very complicated and uses lots of chemicals.
D. The experiment includes a good plan for what measurements to take.
Answer:
Since the control is different, making an accurate prediction for this test is difficult.
Explanation:
A mining company is interested in monazite, a mineral substance that forms in igneous rock in Earth’s interior. They think they found a lot of monazite in a sedimentary rock formation at Earth’s surface. Could this really be monazite? If so, how could the monazite have become part of sedimentary rock?
Answer:
Yes, it could have been monazite.
Monazite could have become part of sedimentary rock because it is formed during the metamorphosim of clastic sedimentary rocks. It is a resistant minerals that is found in weathered rocks debris which become concentrated and they are part of the soils and sediments found near weathered rocks.
Explanation:
Monazites are phosphate minerals that are found im small grains as accessory in igneous rocks and sedimentary rocks. It is formed during the crystallization of igneous rock and metamorphosim of clastic sedimentary rocks.
It is a resistant minerals that found in weathered rocks debris and become concentrated in sediments near weathered rocks.
Small bronchi are called
Answer:
Explanation:
bronchioles
What does an unstable isotope give off that a stable isotope does not?
Answer:
An unstable isotope emits some kind of radiation, that is it is radioactive. A stable isotope is one that does not emit radiation,
Explanation:
A plant growing in a pot is more likely to be affected by a shortage (lack) of minerals than a plant growing in a garden.
Give the reason for this.
A partial Texas food web is shown. The populations of which organisms will
most likely increase as a result of a disease that suddenly reduced the
population of Texas horned lizards. (12C) *
*See attached digaram for the good web being refffered to
Options:
A. Grasses and ants
B. Ants and grasshoppers
C. Grasshoppers and Texas cottonmouths
D. Texas cottonmouths and red-shouldered hawks
Answer:
B. Ants and grasshoppers
Explanation:
Looking at the partial Texas food web that is given below in the diagram attached, it shows that the Texas horned lizard feeds mainly on ants and grasshopper as a secondary consumer in the food web. As a result of this, the population of ants and grasshoppers would be often put in check and regulated.
However, if a disease suddenly reduces the population of the Texas horned lizard, it means that ants and grasshoppers won't be heavily preyed on anymore, since the population of their major predator has now been reduced.
Therefore, a reduction in the population of Texas horned lizard would result in the increase in the population of ants and grasshoppers.
Answer: Ants and grasshoppers
Explanation: I took the test
HElP EEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEE
please help
don't give irreverent answer
Answer:
idk why u askin boo
Organisms that may make use of anaerobic respiration include A. Human Beings B. yeast C. Bacteria D. All of the above
Please HURRY!!
Why are bacteria needed in the nitrogen cycle?
A. Other living things cannot use atmospheric nitrogen.
B. Other living things cannot use the nitrogen in plants.
C. Bacteria are the main nitrogen reservoir.
D. Bacteria are the main nitrogen transporters.
The Bacteria needed in the nitrogen cycle Bacteria are the main nitrogen transporters.
What is nitrogen cycle explain?The nitrogen cycle is a repeating cycle of method during which nitrogen carries through both living and non-living things:
The atmosphere, soil, water, flora, fauna and bacteria.
In terms to move via the various parts of the cycle, nitrogen must alter forms.
Thus, option "A" is correct, Bacteria are the main nitrogen transporters.
To learn more about nitrogen cycle click here:
https://brainly.com/question/1615727
#SPJ2
The act of speech is termed
Answer:
The acts speakers perform when they make an utterance are called speech acts.
A speech act is an utterance that serves a function in communication. We perform speech acts when we offer an apology, greeting, request, complaint, invitation, compliment, or refusal. ... Here are some examples of speech acts we use or hear every day: Greeting: "Hi, Eric.
Explanation:
One important area of pragmatics is that of speech acts, which are communicative acts that convey an intended language function. Speech acts include functions such as requests, apologies, suggestions, commands, offers, and appropriate responses to those acts.
Answer: Phonation
Explanation:
What happens to the energy in detritus?
Answer:
detritus, in ecology, matter composed of leaves and other plant parts, animal remains, waste products, and other organic debris that falls onto the soil or into bodies of water from surrounding terrestrial communities. microorganisms (such as bacteria or fungi) break down detritus, and this microorganism-rich material is eaten by invertebrates, which are in turn eaten by vertebrates. many freshwater streams have detritus rather than living plants as their energy base.
Explanation:
in order to survive in its environment a single celled organism uses a contractile vacuole to remove excess water that diffuses into its cell. Another species a hydra also excretes excess water. Both processes involve the use of energy. Based on this information, state whether these two organisms live in fresh water or salt water support your answer
Answer:
They would live in salt water.
Explanation:
Salt water is a hypertonic solution where water needs to move outside of the cell because there is too much solute outside. Because the 2 organisms are removing excess water, it shows that they are living in salt water where water flows outside instead of inside the cell.
Based on the available information, these two organisms would:
Live in salt waterAccording to the given question, we can see that there is a need for survival which makes a single celled organism to make use of the vacuole to remove the excess water which it diffuses into its cell.
As a result of this, we can see that another specie, a hydra also excretes excess water which involves the use of energy.
Therefore, the conclusion we can reach about them is that they are living in salt water because it is a hyper tonic solution which allows water to move freely outside the cell because of the excess solute outside the cell wall.
Read more here:
https://brainly.com/question/15887615
what animals that grow naturally in the Pacific Northwest and Kitsap Peninsula ? please help
Answer: Pacific Northwest Animals & Birds
Spotted and snowy owls. Bald and Golden eagles. Pileated woodpecker. Rufous hummingbird. Great Blue Heron and Canada goose. Seabirds, including cormorant. Bear. Olympic marmot.Kitsap Peninsula:
Marine mammals of the sound include orcas, sea lions, sea otters, gray whales, humpback whales, and harbor seals. Underwater plants provide food, breeding areas, nurseries, and resting places for wildlife in the sound.
F. Answer the following questions in brief.
1. Why should we use fossil fuels judicially?
3. Define the term 'fossil fuel. Give two examples.
4. How can we conserve fossil fuels?
5. What is calorific value of a fuel?
6. What are conditions required for the formation of fossil fuels?
2. Give full form of CNG. Why is it preferred over other fossil fuels?
1. fossil fuels should be used judiciously as they can be exhausted if used excessively and will take time to replenish
2. fossil fuels are fuel formed by natural processes such as decomposition of dead organisms .
3. They can be easily exhausted
4.The calorific value of a fuel is the quantity of heat produced by its combustion i.e at constant pressure and under “normal” (standard) conditions (i.e. to 0 degree C and under a pressure of 1,013 mbar).
5. COMPRESSED NATURAL GAS . CNG preferred than fossil fuel because it produce greenhouse gases upon combustion, it is a more environmentally clean alternative to other fossil fuels
Answer:
1. fossil fuels should be used judiciously as they can be exhausted if used excessively and will take time to replenish
2. fossil fuels are fuel formed by natural processes such as decomposition of dead organisms .
3. They can be easily exhausted
4.The calorific value of a fuel is the quantity of heat produced by its combustion i.e at constant pressure and under “normal” (standard) conditions (i.e. to 0 degree C and under a pressure of 1,013 mbar).
5. COMPRESSED NATURAL GAS . CNG preferred than fossil fuel because it produce greenhouse gases upon combustion, it is a more environmentally clean alternative to other fossil fuels
Explanation:
which of the following best compares the male and female reproductive structures of a gymnosprem
Answer:
gymnosperms produce male cones and female cones, and the pollen from a male cone fertilize the egg inside a female cone
Unattached earlobes is a dominant trait, E. A parent who is homozygous for unattached earlobes is crossed with a parent who is
homozygous for attached earlobes. Which describes the genotypes of their offspring?
100 percent Ee
100 percent unattached earlobes
100 percent ee
100 percent attached earlobes
Answer:
100 percent Ee
Explanation:
This is a cross involving a single gene coding for attachment or not of earlobes. The allele for unattached earlobes (E) is dominant over the allele for attached earlobe (e). This means that allele E will always mask the phenotypic expression of e in a heterozygous state.
A parent that has same alleles for unattached earlobes i.e. EE is crossed with a parent that has same alleles for attached earlobes i.e. ee. In this cross, all of the offsprings will have a heterozygous genotype, Ee because gametes E and e will be produced respectively by each parent.
Hence, since all of the offsprings will have an Ee genotype, it means 100% of their offsprings will have Ee (HETEROZYGOUS).
Answer:
Its A or 100% Ee
Explanation:
edge 2022
Seeds are the male gametes in plants. true or false
Answer:
Seeds are not gametes.
Explanation:
Microsporophyll is a male gamete.
Macrosporophyll is a female gamete.
Answer:
False
Explanation:
Pollen is the male gamete in plants
Earth's moon _____. Has a thick atmosphere that protects it from asteroids rotates in the same amount of time that it revolves has more gravity than Earth is the largest satellite in the solar system
Answer:
The Earth moon rotates in the same amount of time that it revolves.
Explanation:
The moon is the only Earth's natural satellite and it orbit round the Earth. It is the fifth largest natural satellites. It was formed not long after the formation of the Earth. The moon rotates on its axis . The moon rotate once and it's matches the period it's orbit making it to keep the same side facing of the Earth. This means that the moon the moon rotates once every time it revolves the Earth.
Which of these statements best describes the role of creativity in science?
A.It helps scientists prove non-observable theories.
B.It helps scientists make conclusions non-testable.
C.It helps scientists give valid scientific explanations.
D. It helps scientists create theories which are universal.
Answer:
i feel like it's A.
Explanation:
How does Natural selection apply to yourself as an individual? will mark the brainliest answer
Answer:
Natural selection occurs when some of those traits help some individuals survive and reproduce more than others. That causes their genes to become more common in the population over time, and it's the way species evolve to adapt to changes in their environment.
Explanation:
hope this helps =)
Which types of bacteria does the Monera Kingdom consist of ?
Answer:
Prokaryotic Bacteria
Answer:
Monera is a kingdom in biology that comprises prokaryotes, which are single-celled organism that have no true nucleus.Apr 28, 2017
Explanation:
Kingdom Monera
You have suffered from a lot of diseases that bacteria cause. But, do you think all bacteria are bad? No! The bacteria have a huge kingdom of their own that consists of a number of varieties of them. Each bacteria has a different role to play. They belong to the kingdom Monera. Here, we will know all about the kingdom Monera. We will look at both their characteristics and divisions in greater detail.
Characteristics of Monera
Monera (Monos – single) includes prokaryotes and shows the following characters:
They are typically unicellular organisms (but one group is mycelial). The genetic material in these organisms is the naked circular DNA. A nuclear envelope is absent. Both, ribosomes and simple chromatophores, are the only subcellular organelles in the cytoplasm.
Sap vacuoles do not occur. Instead, gas vacuole may be present.
The predominant mode of nutrition is absorptive but some groups are photosynthetic (holophytic) and chemosynthetic.
The organisms are non-motile or move by the beating of simple flagella or by gliding.
Bacteria Shape
Cocci: They are oval or spherical in shape.
Bacilli: They are rod-shaped. They may or may not have flagella.
Vibrios: These are small and ‘comma or kidney’ like. They have a flagellum at one end and are also motile. Vibrio bacteria has a curve in its cell.
Spirillum: They are spiral or coiled like a corkscrew. The spiral forms are usually rigid and bear two or more flagella at one or both the ends e.g., Spirillum, Spirochaetes etc.
Filament: Just like fungal mycelia, the body of the bacterium is filamentous. The filaments are very minute in size. Examples include Beggiota, Thiothrix etc.
Stalked: The body of bacterium possesses a stalk e.g., Caulobacter.
Budded: The body of the bacterium is swollen at places e.g., Rhodomicrobiu
Structure of Bacteria
Capsule: In a large number of bacteria, a slimy capsule is present outside the cell wall. It is composed of polysaccharides and the nitrogenous substances (amino acids) are also present in addition. This slime layer becomes thick, called, capsule. The bacteria, which form a capsule, are’ called capsulated or virulent bacteria. The capsule ‘is usually found in parasitic forms e.g., Bacillus, anthracite, Diplococcus pneumoniae, Mycobacterium tuberculosis.
Cell wall: All bacterial cells .are covered by a strong, rigid cell wall. Therefore, we classify them under plants. Inner to the capsule, the cell wall is present. It is made up of polysaccharides, proteins and lipids. We also find D-glutamic acid and diaminopimelic acid.
Monera
Plasma membrane: Each bacterial cell has a plasma membrane. It is situated just internal to the cell wall. It is a thin, elastic and also differentially or selectively permeable membrane.
Cytoplasm: The cytoplasm refers to a complex and aqueous fluid or semifluid ground substance (matrix). This material consists of vitamins, salts, enzymes, carbohydrates, soluble proteins, co-enzymes, lipids, mineral and nucleic acids. The organic matter is present in the colloidal state.The cytoplasm is granular due to the presence of a large number of ribosomes.
Nucleoid: It has other common names like genophore, naked nucleus or incipient nucleus. There is nuclear material in these, DNA. It is double helical as well as circular. Some kind of typical protein surrounds it. However, these are not histone proteins.
Plasmids: In addition to the normal DNA chromosomes, many bacteria (e.g., E.coli) have extrachromosomal genetic elements or DNA. These elements are plasmids. They are small circular double-stranded molecules.
Flagella: These are fine, thread-like, protoplasmic appendages. These extend through the cell wall and the slime layer of the flagellated bacterial cells. These help in bacteria to swim about in the liquid medium.
Pili or Fimbriae: Besides flagella, some tiny or small hair-like outgrowths are present on the bacterial cell surface. These are pili. They comprise of pilin protein. They consequently measure about 0.5-2 mm in length and 3-5mm in diameter.
Nutrition in Bacteria
On the basis of mode of nutrition, we can group bacteria into two broad categories. First is autotrophic whereas second is heterotrophic bacteria.
Autotrophic bacteria: These bacteria are able to synthesize their own food from inorganic substances, as green plants do. They derive their carbon from carbon dioxide. The hydrogen needed to reduce carbon to organic form comes from sources such as atmospheric H2, H2S or NH3.
Heterotrophic bacteria: Most of the bacteria cannot synthesize their own organic food. They consequently depend on external organic materials. They require at least one organic compound as a source of carbon for their growth and energy. Such bacteria are heterotrophic bacteria. Heterotrophic bacteria are of three types: Parasites, Saprotrophs and Symbionts.