The answer please will give brainliest

Answer:

A. Spores

B. Meiosis

C. Spores grow by mitosis into gametophyte

D. Haploid (n)

E. Gametes (sperm and egg)

F. Mitosis

Explanation:

Alternation of generations is a system of life cycle exhibited by certain organisms such as algae, plants etc where they alternate between a haploid phase/generation and diploid phase/generation. In this life cycle, the SPOROPHYTE is the diploid (2n) multicellular body that forms haploid SPORES via meiotic division. These spores, however, grow into another multicellular body via mitosis called GAMETOPHYTE.

The GAMETOPHYTE refers to the haploid (n) body that produces the haploid gametes (sperm and egg) by undergoing mitosis. The haploid gametes produced unites in a process called FERTILIZATION to yield a diploid ZYGOTE that eventually mitotically grows into the SPOROPHYTE. Note that, the cycle repeats.

Answer: B

Explanation: I did The test

During science class, Mauricio made sketches of the major organelles of the cell. The second sketch describes a mitochondrion. The correct option is B.

The “powerhouses” of the cell, mitochondria, break down fuel molecules and harvest energy during cellular respiration. Chloroplasts and mitochondria probably started as microorganisms that were swallowed by larger cells (the endosymbiont theory).

A mitochondrion is a membrane-containing cell organelle. It is the site of energy-producing metabolic processes and cellular respiration. The process happens inside mitochondria.

Thus, the link between cellular respiration and photosynthesis is that the reactant in photosynthesis is a byproduct of cellular respiration.

Therefore, the correct option is diagram B.

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Messenger ribonucleic acid (mRNA) is the single-stranded biological molecule that resembles the hereditary sequence of the gene and is needed for coding the proteins molecules essential for cell function and growth.

Transcription is the process that occurs in the nucleus.

Therefore, transcription results in the formation of the mRNA.

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Answer:Each cell carries out basic life processes that allow the body to survive. Many human cells are specialized in form and function, as shown in Figure below. Each type of cell in the figure plays a specific role. For example, nerve cells have long projections that help them carry electrical messages to other cells.

Explanation:

Answer:

I agree with the other person

have a good day :)

Explanation:

Answer:

1 is

Explanation:

no. 1 is water cycle

no.2 is food chain

no.3 is carbon-oxygen cycle

no.4 is mineral cycle

Answer:

1adaptation are acquired through use of those traits (that was lamarck)

2 . use and disuse (that was lamarck)

3.biochemical evidence (the rest he would have been used, not completely but there would have been elements available there)

Explanation:

Answer:

22:- in mitosis stem cells and somatic cells cell division occurs and in meoisis germ cells cell division occurs

23:- at end of mitosis 2 daughter cells formed and meiosis 4 daughter cells formed

24:- in mitosis cells are same and in meiosis cells are different

l know only those questions answers

Answer:

The word you are looking for is: Full

Explanation:

I majored in Biology

Answer:

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ANIMALSPHOTO ARK

Grizzly bear

Grizzly bears once lived across much of western North America until European settlements and aggressive hunting eliminated most of the population.

PHOTOGRAPH BY JOEL SARTORE, NATIONAL GEOGRAPHIC PHOTO ARK

COMMON NAME: Grizzly bears

SCIENTIFIC NAME: Ursus arctos horribilis

TYPE: Mammals

DIET: Omnivore

AVERAGE LIFE SPAN IN THE WILD: 25 years

SIZE: Five to eight feet

WEIGHT: 800 pounds

SIZE RELATIVE TO A 6-FT MAN:

IUCN RED LIST STATUS:? Least concern

LC

NT

VU

EN

CR

EW

EX

LEAST CONCERN

EXTINCT

CURRENT POPULATION TREND: Stable

What is the grizzly bear?

The grizzly bear is a North American subspecies of the brown bear. Grizzlies are typically brown, though their fur can appear to be white-tipped, or grizzled, lending them their name. Grizzly bears are protected by law in the continental United States—not in Alaska—though there have been some controversial attempts to remove those protections in recent years.

Answer:

The easiest one to correct would most likely be Class V, since in this type of mutation, the only problem or abnormality is the production of insufficient amounts of the needed CFTR.

Explanation:

Mutation Classes

Class I - Gene contains a stop signal that prevents CFTR from being made.

Class II - CFTR is made, but does not reach the cell membrane

Class III - CFTR is made and in the right place, but does not function normally

Class IV - Channel does not move substances efficiently or at all

Class V - CFTR is made in smaller than normal quantities

Answer:

Plants and animals use this process to produce ATP.

Explanation:

the first one is wrong because cellular respiration occurs in almost every cell

the third one is wrong because byproduct of cellular respiration is water, not oxygen(oxygen is used in the reaction)

fourth is wrong because carbohydrates are produced by photosynthesis

second option is right because cellular respiration provides energy(ATP) for cells to use(in order to perform lots of processes)

Answer:

there is no picture attached

Explanation:

Answer:

Social Darwinism and Evolution

Explanation:

This are the themes of the 1st chapter of the War of the Worlds by H. G. Wells.

Answer:

A. Plants and/or animals relocated or died.

Explanation:

Plants and animals will eventually come back, so that is a short-term effect on the ecosystem.

Hope this helps! :)

Answer:

the genetic constitution of an individual organism.

Explanation:

so like A and B ,A is for mom that would be a genotype

Answer: he is not correct

Explanation:

incorrect bud

The energy provided by ATP is driven by the breakdown of glucose molecules. Thus, option D is correct.

ATP or Adenosine triphosphate is the energy molecule that is able to provide energy to the body.  Varying pathways and cycles in the cell produce ATP.

ATP production is carried out in the degradation of the complex molecules by the cell. The cycle is operated primarily in the cell for the production of ATP in glycolysis.

The ATP is produced in the glycolysis cycle with the breakdown of glucose molecules. Thus, option D is correct.

Learn more about ATP, here:

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I don't have access to your model, although I'm sure it's beautiful. Fortunately, this question can be answered without one.

A strand of DNA is a polymer consisting of monomeric nucleotide units. The nucleotides that are found in DNA are distinguished by their nucleobases: adenine (A), thymine (T), guanine (G), and cytosine (C). Each nucleotide in DNA is made up of a single nucleobase, a sugar (deoxyribose), and a phosphate group. These nucleotides form extremely long chains comprising phosphate-sugar linkages (covalent, phosphodiester bonds).

In native, double-stranded DNA, you have of these chains (or strands) arranged side-by-side such that the nucleobases on one chain are faced directly across corresponding nucleobases on the other chain, which enables hydrogen bonding between the bases.

There is a "rule" regarding which bases form hydrogen bonds with one another (Chargaff's rule): adenine with thymine and guanine with cytosine.

What does this have to do with the width of the DNA molecule?

The four nucleotides can be structurally classified into two categories: pyrimidines and purines. For our purposes, we only need to know that pyrimidines are six-membered rings and purines are a fusion of a six- and five-membered ring (basically, purines are pyrimidines attached to a five-membered ring). Thymine and cytosine are pyrimidines, and adenine and guanine are purines.

So, geometrically, adenine and guanine are larger (and, thus, "wider") than thymine and cytosine since adenine and guanine contain an extra ring. But remember our base-pairing rules: In native DNA, adenine (two rings) on one strand pairs up with thymine (one ring) on the other strand, and guanine (two rings) pairs up with cytosine (one ring) on the other strand.

Because there's a 1:1 ratio between A:T and G:C in double-stranded DNA, the DNA molecule consists of complementary base pairs that, in any given composition of, has equivalent widths. Put simply, the A=T pair has the same width as a G≡C pair because both base pairs are between one pyrimidine and one purine.

DNA (Deoxyribonucleic acid) is composed of four nucleotides, namely, adenine, guanine, cytosine, and thymine.

Thus, the relative pairing of the purine and pyrimidine with each other keeps the width of the DNA constant.

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Answer:

Theories can be created by just one person

Explanation:

What normally happens is that one person creates a theory, and as years go by new research comes out further advancing or modifying a theory. The theory then is created by many people. Which overall still means that theories can be created by just one person.

Answer:

below

Explanation:  Ribosomes cell

Answer:

The correct answer is - option B. it increases the amount of genetic variation in the species.

Explanation:

Meiosis is a type of cell division that takes place in sex cells or reproductive cells. There is crossing over takes place which is a process where the genetic exchange of chromosomes occurs between non-sister chromatids of homologous chromosomes.

The crossing over leads to the new genetic combinations of genetic material which result in the genetic variation in species. This variation plays a role in the natural selection and evolution of species.

Answer:

Hormones are produced by glands and sent into the bloodstream to the various tissues in the body. They send signals to those tissues to tell them what they are supposed to do. When the glands do not produce the right amount of hormones, diseases develop that can affect many aspects of life.

Answer:

hope it helps

Explanation:

Hormones are produced by glands and sent into the bloodstream to the various tissues in the body. They send signals to those tissues to tell them what they are supposed to do. When the glands do not produce the right amount of hormones, diseases develop that can affect many aspects of life.

Answer:

Question: What was the Scientific Revolution of the mid-1500s and 1600s?

Answer: Before the mid-1500s and 1600s, Scientists feed on ancient scholars scientific materials and what the church explains through the Bible of how God created the universe and the people that lived in the world. The interest people have to observe their natural environments, coupled with the rise of more educated scientists led to the Scientific Revolution which uses observation of the natural world, experimentation, and a well-followed scientific method to discover the world.

Question: What is the scientific method?

Answer: During the mid-1500s and 1600s scientists developed a method called the scientific method with the aim to lay emphasis on observing the natural world and experimentation to test hypothesis. Making them start thinking like scientists instead of accepting unproven theories.

Question: List the major steps of the scientific method.

Answer:

1. Observation

2. Experimentation

3. Logical Ideas

4. Hypothesis

Question: What are the lasting consequences of the scientific revolution?

Answer:

1. It shaped the way people think and make people question and observe their environments.

2. It embraces the acceptance of proven and tested theories rather than some mystical beliefs.

Answer:

i think weather???

Explanation:

Answer:

fourty six chromosomes

I think that 46 is the answer :)

Answer:

1. Only small uncharged molecules can diffuse freely through phospholipid bilayers (Figure 2.49). Small nonpolar molecules, such as O2 and CO2, are soluble in the lipid bilayer and therefore can readily cross cell membranes. 2. Diffusion through a permeable membrane moves a substance from an area of high concentration (extracellular fluid, in this case) down its concentration gradient (into the cytoplasm). 3. Objects change their motion because unbalanced forces act on them. There are four main factors that affect the motion of objects. These factors are force, friction, inertia, and momentum.

Explanation:

Hope this helps. ^_^

Answer:

Examples include steroids and Vitamins

Phospholipids ,as the name implies fall under the category of lipids. Phospholipids have a hydrophilic "head" which has a strong attraction to water molecules.The hydrophilic head contains a phosphate group which allows for reactivity with water molecules.

Phospholipids also contains two hydrophobic "tails" which has a strong repulsion to water. The tails are derived from fatty acids and are joined by a glycerol molecule. These compounds are less reactive to water molecules .

These properties make phospholipids to be soluble in both water and oil which favors the movement of molecules such as Steroids and Vitamins in and out of the cells through the process called Diffusion.

The direction of movement depends on the concentration of molecules as they usually move from a region of high concentration to a region of lower concentration to ensure there is equilibrium and proper functioning of cells.

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Answer:

Gross productivity refers to the amount of carbon fixed.

Explanation:

Gross productivity refers to the amount of carbon fixed during the process of  photosynthesis by all producers such as plants and algae etc in the ecosystem. A large part of the energy that is produced in the process of photosynthesis is used by the plants in the metabolic processes of the producers such as respiration. The net productivity indicates that carbon dioxide plants that is used during the photosynthesis process substracted from carbon dioxide the plants releases during the process of respiration.

Answer:

be care if use answer ^ got in troulbe reword it really good

Explanation:

Answer:

The U.S. voluntary market defines green power as electricity produced from solar, wind, geothermal, biogas, eligible biomass, and low-impact small hydroelectric sources. ... Such fuel sources include the sun, wind, moving water, organic plant and waste material (eligible biomass), and the earth's heat (geothermal).

Explanation:

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Answer:

No, because bears kill to get their food. They eat fish and they kill the fish to get them. If they left the fish carcass, decomposers would eat it. The bear makes the food for the decomposers, but it is not a decomposer itself... Does that make sense?