I need biology help can someone pls help me I Will give brainliest

Answer:

B

Explanation:

I am pretty sure that the answer is B

Answer:1) Chloroplast, mitochondrion and vacuole are the organelles

Explanation:  a leaf is a organ of a plant and is not found in cells. An enzyme creates chemical reactions in the body. the DNA is just the plan on how to build the cell and how to do certain cellular processes. therefore a chloroplast, mitochondria and vacuole are all organells. also the mitochondrion creates energy, a vacuole stores food and water and a chloroplast converts the suns energy into food

Answer: I'm pretty sure it's the first one

Explanation: I don't know for sure but I'm pretty sure when I learned it they said that extrusive is above ground and intrusive is below ground. Don't take my word for 100% though

Answer:

c

Explanation:

I think that it is c, because there is only 1 product

Answer:

Explanation:

Oxygen gas and water must be present for iron to rust.

A region of the metal’s surface serves as the anode, where oxidation

occurs:

Fe(s) → Fe²⁺ (aq) + 2 e⁻

The electrons given up by iron reduce atmospheric oxygen to water at the cathode, which is another region of the same metal’s surface:

O₂ (g) + 4H⁺ (aq) + 4 e⁻ → 2 H₂O (l)

The overall redox reaction is:

2 Fe(s) + O₂(g) → 4H⁺(aq) + 2Fe²⁺ (aq) + 2 H₂O(l)

The Fe²⁺ ions formed at the anode are further oxidized by oxygen:

4 Fe²⁺ (aq) + O₂(g) 1 (4 + 2x) H₂O (l) → 2 Fe₂O₃ . xH₂O(s) + 8 H⁺(aq)

This hydrated form of iron(III) oxide is known as rust. The amount of water associated with the iron oxide varies, so we represent the formula as 2 Fe₂O₃ . xH₂O.

Answer:

Explanation:

Flanked by the Arabian Sea, Karnataka is a coastal state in

the south west of India. It is the eighth largest state by size

and the ninth by population.While the Western Ghats

account for a bulk of the state’s forest cover, over 77 per cent

of its geographical area is arid or semi-arid. Much of this is

concentrated in North Karnataka. Karnataka is also the third

most urbanised state in the country and water availability is a

major concern. In terms of its economy, over 50 per cent of the

state’s Gross State Domestic Product comes from the services

sector.  There has, however, been a dip in manufacturing and a

reduction in mining and quarrying operations.

Much of Karnataka’s environmental legacy revolves around two

issues; industrial activity in the Ghats in the form of paper mills,

gold and iron mining, and hydro power generation; and the

supply and usage of water.10 The most notable manifestation of

the latter is the Cauvery water dispute between Karnataka and

Tamil Nadu.11 A related concern is the sharp disappearance of

lakes and water bodies, owing to encroachment, pollution and

infrastructural activity in the state. Karnataka has a number of prominent scientific and researchbased institutions based in its capital city Bengaluru (formerly

Bangalore) and this has played an important part in the framing

and content of Karnataka’s SAPCC.

Answer:

Plastics safety, food packaging, innovation & affordability, and making a positive impact. Find out what Berry is doing to optimize product design & utilize sustainable sourcing. Explore Solutions. Check Products.

Explanation:

hope this helps srry if it doesn't tho

Answer:

D. Proteins would not get made

Explanation:

According to google: If the ribosomes were not working properly then your cell would not be producing proteins. If your cell did not produce proteins enzymes would not be available to speed up reactions throughout your body, and they would also not be available to make the many organelles made with proteins such as microtubules which would cause many other problems within the cell.

Answer:

D. Proteins would not be made.

Explanation:

Answer:

Explanation:

True

Answer:

can you please answer my question please

Explanation:

pleaseee

Answer:

B. Mutations increase the genetic variation within a population, and some of the variants may provide an advantage to individuals over time

The role of mutations in evolution by natural selection is option b. Mutations increase the genetic variation within a population.

The mutation is significant as the first step of evolution since it developed the new DNA sequence for the specific gene that developed the new allele.

Also, at the same time, it rise the genetic variation within the population also it provides as an advantage to individual

hence, the option b is correct.

Learn more about mutation here: https://brainly.com/question/14844437

Answer:

yeah the 2nd one is shampoo

Explanation:

please mark me as a brainly

if humans begin hunt the space cows they will eventually become extinct causing the vaderians to lose a main source of food which would most likely cause their population to also decrease.

Answer:

Explanation:

Microbial eukaryotes are an important component of the human gut microbiome.

Answer:

G

Explanation:

Large molecules are brought into the cell by wrapping the cell membrane around the molecules to form a vacuole. Membrane proteins provide a pathway for larger particles to move across the cell membrane and bring the cell and environment closer to equilibrium

Answer:

3 option

Explanation:

hope dhat helps

Answer:

D. allows the ecosystem to withstand environmental changes

Explanation:

One very significant importance of biodiversity is that it allows the ecosystem to withstand changes in the environment.

Biodiversity is the variation of life forms on the earth.

Explanation:

ATP CO2 and H2O .........

Answer:

Explanation:

it must be kept in place at least 10 hours after intercourse

Answer:

a) Maxillopoda is a diverse class of crustaceans including barnacles, copepods and a number of related animals. It does not appear to be a monophyletic group, and no single character unites all the members

b) General Characters of Hexapoda (Insects)

Ø A large taxa, includes insects and a small group of wingless arthropods.

Ø Body plan: 3 parts, head, thorax and abdomen.

Ø Head with six segments.

Ø Thorax with three pairs of jointed legs (hence the name hexapoda)

Ø Head bears a presegmental acron.

Ø Acron bears compound eyes.

Answer:

true

Explanation:

Answer:

its true

Explanation:

Scientific theories explain why something happens, but scientific law describes what happens.

Answer:

can you provide me with the text?

Answer:

no

Explanation:

New moons generally can’t be seen. They cross the sky with the sun during the day.

Explanation:

Biomagnification, also known as bioamplification or biological magnification, is any concentration of a toxin, such as pesticides, in the tissues of tolerant organisms at successively higher levels in a food chain.[1] This increase can occur as a result of:

Persistence – where the substance cannot be broken down by environmental processes

Food chain energetics – where the substance's concentration increases progressively as it moves up a food chain

Low or non-existent rate of internal degradation or excretion of the substance – mainly due to water-insolubility

In biomagnification the concentration of the persistent toxins (crosses) increases higher up the food chain.

In this scenario, a pond has been intoxicated. As we go further into the food chain, the toxin concentration increases, causing the top consumer to eventually die of intoxication.

Biomagnification is the build up of toxins in a food chain. The DDT concentration is in parts per million. As the trophic level increases in a food chain, the amount of toxic build up increases. The x's represent the amount of toxic build up accumulating as the trophic level increases. Toxins build up in organism's fat and tissue. Predators accumulate higher toxins than prey.

Biological magnification often refers to the process whereby certain substances such as pesticides or heavy metals work their way into lakes, rivers and the ocean, and then move up the food chain in progressively greater concentrations as they are incorporated into the diet of aquatic organisms such as zooplankton, which in turn are eaten perhaps by fish, which then may be eaten by bigger fish, large birds, animals, or humans. The substances become increasingly concentrated in tissues or internal organs as they move up the chain. Bioaccumulants are substances that increase in concentration in living organisms as they take in contaminated air, water, or food because the substances are very slowly metabolized or excreted.

Contents

Processes Edit

Although sometimes used interchangeably with "bioaccumulation", an important distinction is drawn between the two, and with bioconcentration.

Bioaccumulation occurs within a trophic level, and is the increase in the concentration of a substance in certain tissues of organisms' bodies due to absorption from food and the environment.

Bioconcentration is defined as occurring when uptake from the water is greater than excretion.[2]

Thus, bioconcentration and bioaccumulation occur within an organism, and biomagnification occurs across trophic (food chain) levels.

Biodilution is also a process that occurs to all trophic levels in an aquatic environment; it is the opposite of biomagnification, thus when a pollutant gets smaller in concentration as it progresses up a food web.

Lipid, (lipophilic) or fat soluble substances cannot be diluted, broken down, or excreted in urine, a water-based medium, and so accumulate in fatty tissues of an organism, if the organism lacks enzymes to degrade them. When eaten by another organism, fats are absorbed in the gut, carrying the substance, which then accumulates in the fats of the predator. Since at each level of the food chain there is a lot of energy loss, a predator must consume many prey, including all of their lipophilic substances.

For example, though mercury is only present in small amounts in seawater, it is absorbed by algae (generally as methylmercury). Methyl-mercury is the most harmful variation of mercury. It is efficiently absorbed, but only very slowly excreted by organisms.[3] Bioaccumulation and bioconcentration result in buildup in the adipose tissue of successive trophic levels: zooplankton, small nekton, larger fish, etc. Anything which eats these fish also consumes the higher level of mercury the fish have accumulated. This process explains why predatory fish such as swordfish and sharks or birds like osprey and eagles have higher concentrations of mercury in their tissue than could be accounted for by direct exposure alone. For example, herring contains mercury at approximately 0.01 parts per million (ppm) and shark contains mercury at greater than 1 ppm.[4]

DDT is thought to biomagnify and biomagnification is one of the most significant reasons it was deemed harmful to the environment by the EPA and other organizations. DDT is stored in the fat of animals and takes many years to break down, and as the fat is consumed by predators, the amounts of DDT biomagnify. DDT is now a banned substance in many parts of the world.[5]

Answer:

Photosynthesis Inputs. 6H2O, 6CO2, (light) energy.

Photosynthesis Outputs. C6H12O6 (glucose), 6O2.

Light Reactions Inputs. Light (energy), ADP, Pi, NADP, H2O.

Light Reactions Outputs. O2, ATP, NADPH.

Calvin Cycle Inputs. CO2, ATP, NADPH.

Calvin Cycle Outputs. G3P.

Explanation:

Explanation:

Hypogeal germination is when the plant is germinated under the ground. An example of this would be the pea plant.

epigeal germination is the opposite of that. Germination takes place above the ground. normal bean plants have epigeal germination