Someone, please help!

Explanation:

X y

X XX Xy

y Xy yy

capital letter is dominant

small letter is recessive

example

capital letter could be brown eyes

small letter could be blue eyes

Answer:

Steroid hormones.

Explanation:

Steroid hormones is a type of hormones that diffuses across the plasma membrane and binds to the receptors present in the cytoplasm. The hormones are released from the carrier protein and diffuse inside the cell across the lipid bilayer of the plasma membrane of the cells. The steroid hormones pass through the plasma membrane of a target cell and attached to the intracellular receptors located in the cytoplasm or in the nucleus.

Answer:

The correct answer is - electron transport system.

Explanation:

There are 3 main stages of cellular respiration (aerobic) that are Glycolysis, the Kreb's Cycle and the ETS or Electron Transport Chain. The formation of energy in ATPare as follows:

Glycolysis - glucose > 2 Pyretic Acid Molecules =>2 ATP and Hydrogen

The Krebs Cycle - Citric Acid (a derivative of Pyruvic Acid) > 2 ATP in 4 cycles and  Hydrogen, carbon dioxide and water.

The Electron Transport Chain > electron carrying Hydrogens > releases the energy as 4 ATP and water

Thus, the correct answer is - The Electron Transport Chain is the stage that produces most of the ATP during cellular respiration.

Answer:   c)  They allow for automatic biogeographic isolation.

The main reason that islands often provide good examples of evolution that they allow for automatic biogeographic isolation. The correct option is C.

Transition in the heritable traits of biological communities over time is referred to as evolution.

These traits are gene expressions that are passed down from parent to progeny during reproduction.

They have resulted in significant gains in standard of living, public welfare, wellness, and protection.

They have altered our perceptions of the universe and of ourselves in relationship to the world around us. One of the most fundamental concepts in modern science is biological evolution.

They are well-known for evolving different beaks that are suited to different food types, such as large seeds as well as invertebrates, enabling them to occupy different niches.

Thus, the correct option is C.

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Answer:

hey hi mate

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Answer: the answer is b. Transcription will not begin.

Explanation:

Answer:

d

cause

Explanation:

Answer:

9. Bees play a very important role in relation to agricultural production. Indeed beekeeping is a vital part of our agricultural system. Apart from crop plants which are highly dependant on bees, the presence of honey bees also improves the quality and quantity of crops in general.

10. Use insect repellent. Permethrin-impregnated clothing and insect repellent have not been proved to be particularly effective against tsetse flies, but they will prevent other insect bites that can cause illness. The World Health Organization has targeted West African trypanosomiasis for elimination as a public health problem by 2020.

Explanation:

Answer:

a chromosome that links a pair os sister chromosome

Explanation:

each chromosome is made of two parallel strands called chromatids. and each pair of chromatids is connected at one point by a structure called centromere.

Answer:

is the constricted region of a chromosome that separates it into a short arm and along arm

or...is a specialized DNA sequence of a chromosome that links a pair of sister chromatids

Explanation:

during cell division , the chromosomes first replicate so that each daughter cell receives a complete set of chromosomes

Answer:

the system that circulates blood and lymph through the body, consisting of the heart, blood vessels, blood, lymph, and the lymphatic vessels and glands.

Explanation:

Explanation:

There are many factors, both natural and man-made, that affect the levels of carbon dioxide and oxygen in the atmosphere. Some of them are:

Burning of fossil fuels increases the level of carbon dioxide.

Cleaning agricultural land increases the level of carbon dioxide.

The availability of nutrients in plants affects the synthesis of oxygen.

The intensity of the sunlight can increase or decrease the synthesis of oxygen.

Deforestation and industrial expansion greatly affect carbon dioxide and oxygen levels.

The increase in consumer products due to population explosion and advances in health care can also fluctuate carbon dioxide and oxygen levels.

An increase in oxygen levels is thought to promote healthy living in the environment, whereas a decrease in oxygen levels can lead to a decrease in atmospheric layers (thinning of the ozone layer). This reduction allows more sunlight to reach the Earth's surface. Sunlight gets trapped inside the Earth and raises the temperature of the planet. It is also known as global warming.

A reduction in carbon dioxide to a certain level is good for the environment, but lower than normal levels can affect oxygen synthesis as plants absorb carbon dioxide and use it to synthesize oxygen during photosynthesis. Since carbon dioxide is a greenhouse gas, an increase in its level will cause global warming.

B.to prepare learners for a discussion of a possible answers to this question

Answer:

A process that completely removes or destroys all viable microorganisms, including viruses, from an object or habitat is referred to as disinfection

Answer

Answer:

. pea plants usually self-fertilize.

put carefully your question

Answer:

Punctuated equilibrium

Explanation:

The idea of "punctuated equilibrium" suggests that species will show little to no evolutionary change throughout their history. When evolution does occur, according to this idea, it happens sporadically and relatively quickly compared to the species' full duration on Earth.

Answer:

Glycolysis and Krebs cycle.

Explanation:

During cellular respiration, the first carbondioxide gas is generated during glycolysis while the remaining carbons are given off as carbondioxide during Krebs cycle. During the process of glycolysis in cellular respiration, glucose is oxidized forming carbondioxide and water whereas during the Krebs cycle, the two carbon atoms of acetyl-CoA are released and each turns into a carbondioxide molecule.

[tex] \green{\huge{\red{\boxed{\green{\mathfrak{QUESTION}}}}}} [/tex]

Describe the digestive system in human body

[tex] \huge\green{\boxed{\huge\mathbb{\red A \pink{N}\purple{S} \blue{W} \orange{ER}}}}[/tex]

ᴅɪɢᴇꜱᴛɪᴏɴ ɪɴ ʜᴜᴍᴀɴꜱ ᴏᴄᴄᴜʀ ᴛʜʀᴏᴜɢʜ ᴅɪꜰꜰᴇʀᴇɴᴛ ꜱᴛᴀɢᴇꜱ-

[tex]{\bf{Ingestion:}}[/tex]: It is the process of taking in food.It involves taking in food through the mouth and eating it.

[tex]{\bf{Digestion:}}[/tex]: It is the breakdown of food into simpler, soluble form with the help of digestive juices made in the body.

[tex]{\bf{Absorption:}}[/tex]: In absorption, food in the soluble form passes into the body fluids such as blood.

[tex]{\bf{Assimilation:}}[/tex]: Assimilation is the process by which absorbed nutrients are utilized by the body.

[tex]{\bf{Egestion:}}[/tex]: It is the process of elimination of undigested solid parts of the food.

______________________________________

~~~~~~~~~~ᴅɪɢᴇꜱᴛɪᴏɴ ɪɴ ᴛʜᴇ ᴍᴏᴜᴛʜ!

Food is taken in or [tex]\tt\bf\blue{ingested}[/tex] through the mouth.Digestion begins inside your mouth when you chew the food.

The water in your mouth is digestive juice called [tex]\tt\bf\blue{Saliva}[/tex]

 .

It is secreted by the three pairs of the [tex]\tt\bf\green{Salivary \: Glands}[/tex] in your mouth.

Chewing breaks down the food into small pieces and mixes it with saliva.This process is called [tex]\tt\bf\green{Mastification}[/tex]

______________________________________

~~~~~~~~ᴅɪɢᴇꜱᴛɪᴏɴ ɪɴ ᴛʜᴇ ꜱᴛᴏᴍᴀᴄʜ!

After the food is swallowed, it slides down the pharynx into the [tex]\tt\bf\purple{Oesophagus}[/tex]

(foodpipe).

The oesophagus leads from your mouth to the stomach.It is made up of muscles.

These muscles gently push food down to your stomach in a wave like action called [tex]\tt\bf\red{Peristalsis}[/tex]

______________________________________

ᴀʙꜱᴏʀᴩᴛɪᴏɴ ɪɴ ᴛʜᴇ ꜱᴍᴀʟʟ ɪɴᴛᴇꜱᴛɪɴᴇ!

The digested food is then absorbed by the small intestine. Absorption of the food occurs through thousands of small finger-like projections in the inner wall of the small intestine.

These projections are known as [tex]\tt\bf\pink{Villi}[/tex] increse the surface area of absorption of digested food.

Each villus has a network of fine blood cappilaries close to the surface.

The food absorbed on the surface of the villus passes into the blood in tge cappilaries.

______________________________________

~~~~~~~~~~~~          ᴀꜱꜱɪᴍɪʟᴀᴛɪᴏɴ!

The food absorbed into the blood is transported to different parts of the body.It is used to provide energy and materials for growth and repair of the body tissues.This is the final stage of digestion and is known as [tex]\tt\bf\red{Assimilation}[/tex]

______________________________________

~~~~~~~~~~~~             ᴇɢᴇꜱᴛɪᴏɴ!

Not all the food you eat is digeated & absorbed.The food that cannot be digested moves from the small intestine into a wide tube called the [tex]\tt\bf\green{Large \: Intestine}[/tex]

The waste food is now almost solid is stored in the last part of the large intestine called the [tex]\tt\bf\green {Spectrum}[/tex]

It then passes away from the body through [tex]\tt\bf\green{Anus}[/tex]

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Answer:

b - produces 4 unique gametes

a - begins with a somatic cell

a - produces only 2 identical cells

a - has only one nuclear division

b - happens in the testes and ovaries

b - daughter cells are haploid

b - has two nuclear divisions

a - daughter cells are diploid

Explanation:

Mitosis is a kind of cell division that involves the formation of two daughter cells, which are genetically identical and have the same number of chromosomes as their parent cell (diploid). Mitosis occurs in body or somatic cells for repair and multiplication. Mitosis involves only one nuclear division.

Meiosis, on the contrary, involves formation of four daughter cells that are genetically different from the parent cell and have a reduced chromosomal number (by half). Meiosis occurs in reproductive cells like tested or ovaries. Meiosis occurs in two nuclear divisions.

Answer:

Y most likely represents springs.

Answer:

The organelle not found in plant cells is the centriole. Plant cells have a large central vacuole that holds water and minerals for the cell.

Explanation:

Answer:

The centriole JRJRJRBRBV5NEJDJDHDNEJB5BTKWH

Explanation:

I don't know what to put here

Answer:

c. 360ml

Explanation:

first find the ratio.

90/25=3.6

100*3.6=360ml

Answer:

Altruistic behavior, such as sterile worker ants caring for the offspring of their queen, evolves only between related individuals through what is known as kin selection — or so many evolutionary biologists have thought since the 1960s.

Answer:

Basal stem cells for keratinocytes

Explanation:

Keratinocytes are epidermal cells located in the outermost layer of the skin (i.e., the epidermis). Moreover, the cells located in the basal layer of the skin are known as basal keratinocytes or basal cells. These basal cells are proliferative cells that undergo differentiation in order to form suprabasal epidermal layers. Merkel cells are neuroendocrine cells that are located in the basal layer of the skin (scattered among basal keratinocytes), which are attached to surrounding keratinocytes by intercellular junctions called desmosomes.

Answer:

Photosynthesis is a process in which plants turn carbon dioxide and water into food using energy from sunlight.

Answer:

Photosynthesis is a process in which plants get their food by converting carbon dioxide and water by using sunlight .

Answer:

The answer is, pineal gland

Explanation:

I hope this helps you out!

Answer:

The correct answer is - intrasexual selection.

Explanation:

Intrasexual selection is the act of competing with other members of one's own sex for various reasons such as high status, mating, area, and many more as well as the evolutionary process responsible for this competition. The great examples of these are antlers of deers and big size showy feathers of the peacocks to attract their males.

Thus, the correct answer is - intrasexual selection.

Answer:

D. Both store energy used by the organism.

Explanation:

Answer: It is most likely formed underground

An igneous rock that has a coarse texture is one that formed from slowly cooling magma deep within the Earth's crust, or from slowly cooling lava on the surface. The slow cooling allows large mineral crystals to grow, giving the rock a coarse, grainy texture.

The size and shape of the mineral crystals within the rock can provide information about the rock's cooling history and the conditions under which it formed. Coarse-grained igneous rocks such as granite, gabbro, and diorite typically have crystals that are visible to the open eye, with sizes ranging from a few millimeters to several centimeters in diameter.

The composition of the rock can also be determined based on the types of minerals present in the coarse-grained texture. For example, if the rock contains primarily feldspar and quartz, it is likely a granite. If it contains mainly plagioclase feldspar and pyroxene, it is likely a gabbro.

Overall, the coarse texture of an igneous rock indicates that it cooled slowly over a long period, allowing mineral crystals to grow and form a visible grain structure. The size and composition of the crystals can provide clues about the rock's history and origin.

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Answer:

36

Explanation:

A two-point test-cross is a cross between an individual with a double heterozygote genotype and a homo-zygous recessive individual in order to determine the recombination frequency between two linked genes. In genetics, one map unit (m.u.) can be defined as the measure of the distance (i.e., genetic distance instead of physical distance) between genes for which one (1) product of meiosis in one hundred (100) is recombinant. In this case, 36 of the offspring have the recombinant phenotype, while the remaining 64 offspring are not recombinant, and therefore both genes are separated by 36 mu (64 + 36 = 100 >> 36 mu).

The distance between two genes is usually expressed in map units. In the exposed example, 36 MU separates the two loci.

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The map unit is used to express the distance between a pair of genes.

To interpret it, we need to consider that for every 100 meiotic products, one of them results in a recombinant product.

The genetic distance will result from multiplying the recombination frequency by 100 and expressing it in map units (MU).

To calculate the recombination frequency we will use the next formula:

                 P = Recombinant number / Total of individuals.

We know that

So now, all we need to do is to replace the terms by their values

P = Recombinant number / Total of individuals

P = 36 / 100

P = 0.36 ⇒ Recombination frequency

Now we need to get the distance between genes, expressed in Map Units.

P = 0.36

Distance in MU = P x 100 = 0.36 x 100 = 36 MU.

So, 36 MU separates the two loci.

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