easy biology question below first correct answer gets brainliest

Answer:

the answer is (C) haploid + haploid = diploid

Explanation:

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Haploid+ Haploid = Diploid represents fertilization. So, the correct option is (C).

Fertilization is defined as the process in which two gametes where one male and one female first form a zygote and then lead to the development of an embryo.

These germ cells are cells that give rise to gametes – either egg cells that are female gametes or sperm cells that are male gametes.

These germ cells are the only cells that can undergo both mitosis and meiosis. These are the diploid cells present in the gonads. After meiosis, haploid gametes are produced. In fertilization two haploid gametes fuse (n+n) and form a diploid zygote (2n)

Thu, Haploid+ Haploid = Diploid represents fertilization. So, the correct option is (C).

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Answer:

The answer is facilitated diffusion. It requires no energy because the ions are traveling down the concentration gradient. Facilitated diffusion is important for the regulation of ions in a cell. It also enables ions to pass across the hydrophobic layer of the cell membrane composed of phospholipids.

Answer:

A. I, IV, II, III, I

Explanation:

Living system can be defined as the internal systems of organisms and how materials circulate within organisms.

Generally, these living systems are self-organized life forms and are known to be very much interactive with their surroundings or environment. Also, living systems are dependent on the flow of information, matter and energy at various levels.

Some examples of living systems in organisms are respiratory system, nervous system, digestive system, and circulatory system.

Additionally, living systems comprises of the following components; cells, organs, muscle, tissues, blood, etc., which are typically used for carrying out various bodily functions such as respiration, metabolism, digestion, etc.

A sensory system can be defined as components of the central nervous system (CNS) which comprises of the brain, neural tissues or pathways and sensory neurons responsible for sensory functions, perception and processing sensory informations such as sound, light, heat, etc.

Basically, the central nervous system (CNS) interprete the neural signals that are generated from stimuli that are detected by the sensory system. The five (5) main sense organs in the sensory system are: skin, tongue, ears, nose and the eyes.

Generally, the nervous system found in living organisms such as humans, comprises of two (2) major components or systems; a central nervous system (CNS) and a peripheral nervous system (PNS).

The correct sequential order for the transmission of a signal through the nervous system;

1. Nerve impulse is triggered.

2. Synaptic vesicles release neurotransmitters.

3. Neurotransmitters diffuse across synaptic cleft.

4. Receptors bind neurotransmitters.

5. The whole process is started all over again when the nerve impulse is triggered.

Answer:

A. I, IV, II, III, I

Explanation:

Match the terms to their definition

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Answer:

1 4 3 2

Explanation:

Aquatic animals have various structural modifications in their body to adapt to the aquatic habitats. Some of the adaptations of aquatic animals are:

Their body is streamlined and hence, they can swim easily.

They have gills as the respiratory organs.

They have fins as the locomotory organs, Various types of fins are present in fishes such as dorsal fins, pectoral fins, caudal fins etc.

The body is covered by appendages known as scales. They are meant for protection.

Some fishes have modified swim bladder with the help of which they can constantly float at a certain depth of water.

B. Cholera and Yellow Fever

Answer:

D. Oxygen is DEPLETED

Explanation:

iT NEEDS OXYEN TO SUSTAIN IN A CLOSED ENVIRONMENT

A sealed ecosphere is able to constantly continue life until oxygen is depleted. The correct option is A.

A sealed ecosphere is a name given to a sealed ecosystem designed and made by Ecosphere Associates, Inc. These are miniature ecosystems in glass containers.

These miniature ecosystems continuously need oxygen to survive, because it contains small plants or mosses, or algae to grow inside.

Thus, option A. Oxygen is depleted is correct.

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Answer:

The disease spread to the neighbourhood.

Explanation:

If the disaster such as earthquake and pandemic etc occurs in the neighbourhood so it also affected the health of the people of that region as well as the people that lives in the neighbourhood. In the case of pandemic, the disease spread to the neighboring area and affect the health of people while on the other hand, in earthquake the people of neighbourhood is also affected if the intensity of earthquake is higher.

Answer:

I think its A

Explanation:

Variation usually results in changes in the DNA which are passed on the future generation and changing the species slightly each generation. The correct option is C.

The disparity in the character traits of organisms in a population is referred to as variation.

Different traits can be introduced into an organism by genetic variations that alter gene activity or protein function.

Thus, the correct option is C.

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The following shows the correct order in which sound information travels through the ear is Eardrum, ossicles, cochlear nerve, cochlea.

The cochlear nerve, additionally called the acoustic nerve, is the sensory nerve that transfers auditory records from the cochlea (auditory vicinity of the internal ear) to the brain. It is one of the many portions that make up the auditory system, which permits powerful listening to.

We pay attention while sound waves journey thru the air to our eardrum, throughout our center ear, into our internal ear, and sooner or later to the auditory facilities of our brain. Our ears are constantly on and are constantly sporting sounds alongside this listening-to pathway.

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Answer:

Eardrum, ossicles, cochlea, cochlear nerve

Explanation:

Answer:

1. phosphate

2.sugar

3.purin bases

4.guanine

5.pyrimidine

6.cytosine

Answer:

Plasma Membrane

Nucleus

Mitochondrion

Golgi Apparatus

Smooth Endoplasmic Reticulum

Rough endoplasmic reticulum

I hope this help

Explanation:

Answer:

A sustainable system refers to producing less or probably non-existent debris that are caused by the production of a particular material (i.e. produce, energy). This is a sustainable form of production of coupling algae growth and fish farming because you no longer need the supply of fish feed from other sources that are made artificially but rather, you are using the available algae growth that you are culturing. Farm fishing alone is non-renewable because this produces much waste that can directly harm the environment.

An integrated aquaculture system of fish farming with kelp farming is a sustainable system as both system exchange resources and thus reduce wastage of resources.

An integrated aquaculture system is an aquaculture system which combines several forms of aquaculture together.

For example, kelp farming is a form of aquaculture which can be integrated with another form of aquaculture such as fish farming.

Integrating fish farming with kelp farming is a sustainable system as both system provides what the other needs.

The kelps serve as food to fish while fish waste serve as manure for kelps.

Therefore, integrating fish farming and kelp farming is a form of a sustainable system.

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Answer:

Forms of tropism include phototropism (response to light), geotropism (response to gravity), chemotropism (response to particular substances), hydrotropism (response to water), thigmotropism (response to mechanical stimulation), traumatotropism (response to wound lesion), and galvanotropism, or electrotropism (response to electric current). 

Tropism is a response to certain stimuli. A positive tropism is moving towards the stimuli, while a negative tropism is moving away from a stimuli.

Positive Phototropism - Growing towards light

Negative Phototropism - Growing away from light

Positive Thigmotropism- Moving towards touch

Negative Thigmotropism- Moving away from touch

Positive Hydrotropism - Growing towards water

Negative Hydrotropism - Growing away from water

Positive Gravitropism - Growing towards ground

Negative Gravitropism - Growing upwards

Answer:

It actually measures the electrical activity

Explanation:

They are sticky wires that they put on your arms and chest etc

Electrocardiogram measures how much electrical current can be passed through a heart before it stops beating. The correct option is C.

An electrocardiogram is a simple test that can be employed to check the rhythm and electronics activity of your heart. Sensors connected to the skin detect the electrical signals generated by your heart every time it beats.

The electrical signals in the heart are recorded by an electrocardiogram. It's a prevalent and painless test for detecting heart problems and monitoring heart health.

An electrocardiogram, also known as an ECG, is frequently performed in a doctor's office, clinic, or hospital room.

It is a heart electrogram, which is a chart of voltage over time of the electrical activity of the heart recorded with electrodes placed on the skin.

Thus, the correct option is D.

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Answer:

Microscopic charcoal, Vegetation.

Explanation:

Answer:

Sorry I can't understand anything

Answer:

Nucleoside

Explanation:

Nucleotide is an organic compound which is made from of nitrogenous base, a sugar, and a phosphate group.

Answer:

50%

Explanation:

An inversion is a genetic phenomenon that occurs when a chromosome breaks into two genomic sites, thereby the resulting DNA fragment is reversed and subsequently inserted into the same chromosome location. A pericentric inversion occurs when the chromosome breaks are located on opposite arms or sides of the chromosomal centromere. Moreover, crossing over (or recombination) is the exchange of genetic material between non-sister chromatids during gamete production. An inversion carrier, as in this case the woman who is heterozygous for a pericentric inversion, can produce four types of gametes. If there is no crossing over, half the chromatids will produce normal gametes (without the recombination event) and half the chromatids will produce balanced gametes that will transmit the pericentric inverted chromosome. On the other hand, if there is crossing over, half the chromatids will have one duplication on the first chromosome arm together with a deletion on the second chromosome arm, and the remaining half of the chromatids will have an inverse arrangement.

Answer:

The antibody has a molecular weight of 150 kD and consists of four subunits: two subunits of 50 kD and two subunits of 25 kD, which are bonded by covalent bonds.

Explanation:

Sodium dodecyl sulfate (SDS) is a detergent used to alter and denature proteins before gel electrophoresis. SDS can break hydrophobic interactions and hydrogen (H) bonds, but this detergent does not break down disulfide bonds, which is a type of covalent bond between two sulfur atoms. Moreover, mercaptoethanol is a reducing agent used to break disulfide bonds. In this case, it is expected that mercaptoethanol can break disulfide bonds between the four subunits of the mature antibody, thereby yielding two bands corresponding to the 50 kD and 25 kD bands (two subunits of 50 kD + two subunits of 25 kD = 150 kD).

Answer:

to protect the cell from its surroundings

Explanation:

I double checked my notes

Answer:

The correct answer is - Pleiotropy.

Explanation:

Pleiotropy is the number of disorders where multiple, and unrelated organ systems are affected in the body of an individual. Phenylketonuria (PKU) is the most cited example of pleiotropy in humans.

It is an inherited disorder that is caused by a deficiency of the enzyme phenylalanine hydroxylase due to mutation in the PAH gene, This enzyme is necessary to convert the essential amino acid phenylalanine to tyrosine. By this disorder, multiple organ systems are affected such as severe skin discolorations and foul odor, and other intellectual disabilities and behavioral problems.

Answer:

Read john 3:16 from the bible. That is the love God shows on us even when we don't believe his existence or deny him as the truth, ..world is important but it is not permanent.

Answer:

Because it controls all the activities in the cell

The nucleus is considered to be one of the most important structures of eukaryotic cells as it serves the function of information storage, retrieval and duplication of genetic information. It is a double membrane-bound organelle that harbours the genetic material in the form of chromatin.

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Answer:

All right reserved

Human skin color is a good example of polygenic (multiple gene) inheritance. Assume that three "dominant" capital letter genes (A, B and C) control dark pigmentation because more melanin is produced. The "recessive"alleles of these three genes (a, b & c) control light pigmentation because lower amounts of melanin are produced.

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Here, from the cross of the purple and white flower, all offspring are purple, which indicates that the purple color is dominant in nature and is present in Option A.

The Punnett square is a tool used to predict the probability of offspring inheriting specific alleles from their parents. If all of the offspring exhibit the same phenotype (such as purple flower color), it is likely that the parents both carried at least one dominant allele for that trait. This would mean that the purple flower color allele is dominant. Here, the parents are both purple and white, so all the offspring are dominant in nature.

Hence, from the cross of the purple and white flower, all offspring are purple, which indicates that the purple color is dominant in nature and is present in Option A.

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complete question is below

The Punnett square illustrates a cross for color of the flower (purple- parent, white -parent). Based on the phenotypes and genotypes of these offspring (all purple), it is clear that purple flower color allele is

A.) Dominate

B.)polygenetic

C.) recessive

Answer:

Time

Explanation:

As said In The Question "They Can Live Over A Hundred Years", Well There Is No Way That Davahl Can Live For Over A Hundred Years

Answer:

The correct answer is - All of the above

Explanation:

Food is produced at every part of the earth as it may be found even in the parts that are darkest at night or at the part of ocean. Communication between mates can be done by signals that may sent to show interest in mating, Camouflage is the way to escape or hide by use of the light that may momentarily distract predators as it can camouflage the underbelly of the fish by lighting it up the same color of as the sea surface to make it invisible.

Answer:

Sorry I can't understand anything

Answer:

Answer:

I am the earth a beautiful place where birds and sparrows sing. I am the earth , a beautiful place where plants grow thick and thin.