explain EACH phase of cell division (including interphase and mitosis)

Answer:

C

Explanation:

carry their young in pouches

Answer:

C. Carry their young in pouches

Explanation:

edge 2022

Environmental scientists study ways society can use up natural resources and are not concerned with preserving them for the future, which is false as the natural resources should be used in a sustainable manner.

They study and conduct research on air and water pollution, climate change, and conservation biology and use their knowledge and skills to develop sustainable solutions that balance society's needs, as well as to educate people about the importance of preserving natural resources for future generations.

Hence, environmental scientists study ways society can use up natural resources and are not concerned with preserving them for the future, which is false as the natural resources should be used in a sustainable manner.

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The population of deer in the wildlife sanctuary can be estimated using the formula:

P(t) = P(0) * (1 + r)^t

where P(t) is the population after t years, P(0) is the initial population, r is the growth rate per year, and t is the number of years.

In this case, the initial population (P(0)) is 40 deer, the growth rate (r) is 60% per year (0.60), and we need to estimate the population after one year (P1) and two years (P2).

To calculate P1:
P(1) = 40 * (1 + 0.60)^1
P(1) = 40 * (1 + 0.60)
P(1) = 40 * 1.60
P(1) = 64

Therefore, the estimated population after one year is 64 deer.

To calculate P2:
P(2) = 40 * (1 + 0.60)^2
P(2) = 40 * (1 + 0.60)^2
P(2) = 40 * 1.60^2
P(2) = 40 * 2.56
P(2) = 102.4

Therefore, the estimated population after two years is 102.4 deer.

It's important to note that these are estimates and assume that there are no constraints on the population growth. In reality, factors like limited resources, predation, and disease can affect the growth rate and population size.

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Answer:

A.)

Explanation:

We know that asexual means one. In this case, it would be A

., because there is one parent producing the cells. There may be some differences, which would make similar offspring, not identical offspring. So the answer would be A.) :) Hope this will help!

62. The process that does NOT require calcium is repolarization of a neuron's plasma membrane during action potentials.

a. Repolarization is the stage of an action potential in which the membrane potential returns to its resting state by either potassium ions flowing out or chloride ions flowing in. The reason for this is that it does not need calcium because the movement of potassium ions is regulated by potassium channels.

b. Exocytosis of neurotransmitters from axon terminals requires calcium ions to enter the axon terminal from the extracellular fluid, leading to fusion of vesicles with the presynaptic membrane and the release of neurotransmitters.

c. Smooth muscle contraction requires calcium ions to bind with calmodulin, which then activates myosin light-chain kinase, resulting in the phosphorylation of myosin.

d. Gland secretions are stimulated by various factors, including calcium ions that play a role in the release of certain hormones.

e. Exocytosis of neurotransmitters from varicosities in the ANS requires calcium ions to enter the varicosity, leading to the fusion of vesicles with the plasma membrane.

63. Sensory receptors are specialized structures that detect a specific form of energy in the external or internal environment and transduce it into a graded potential. Photoreceptors are sensory receptors in the retina that detect light energy, whereas nociceptors are sensory receptors in the skin that detect pain. Rods are photoreceptor cells in the retina that detect light under low-light conditions. The primary cortex is the region of the brain that receives and processes sensory input from sensory receptors.

64. Dual innervation is the concept that most viscera are innervated by both the sympathetic and parasympathetic divisions of the autonomic nervous system. These two divisions have opposing effects on the same organ, allowing for fine control of the organ's activity. Some examples include the heart, which is innervated by both the sympathetic and parasympathetic divisions, and the gastrointestinal tract, which is innervated by both divisions as well.

a. Most viscera are regulated by both the endocrine system and autonomic nervous system,

b. Most viscera only receive innervation by one of the two divisions of the autonomic nervous system,

c. Most viscera are innervated by both the somatic motor division and the autonomic nervous system.

e. None of the other answers are correct are incorrect.

65. The resting membrane potential is established mainly from the diffusion of potassium ions through leak channels. The resting membrane potential is the voltage difference between the inside and outside of a cell when it is not being stimulated. This potential is established by the movement of ions through ion channels in the plasma membrane. Potassium ions are the most important ions involved in generating the resting membrane potential because the cell is more permeable to potassium than any other ion.

a. Sodium ions through voltage-gated channels,

b. Potassium ions through voltage-gated channels,

c. Sodium ions through leak channels,

d. Calcium ions through leak channels, and

e. Calcium ions through voltage-gated channels are incorrect because only a few ions can diffuse through leak channels, and voltage-gated channels are activated by changes in membrane potential, not by concentration gradients.

66. The rapid depolarization phase of an action potential is due to the movement of sodium ions through voltage-gated channels. The rapid depolarization phase of an action potential is characterized by a rapid increase in membrane potential due to the influx of positively charged ions into the cell. This influx of ions is mainly due to the opening of voltage-gated sodium channels in the plasma membrane. Chloride ions, potassium ions, and sodium ions through leak channels are not responsible for the rapid depolarization phase of an action potential.

67. Neurotransmitters (NT) bind to receptors on postsynaptic neurons and cause ion channels to open or close. This affects the postsynaptic neuron because NT binding changes the membrane potential and creates either a depolarizing or hyperpolarizing graded potential. The effect of NT on the postsynaptic neuron depends on the type of receptor it binds to. Some receptors are ligand-gated ion channels that directly open or close ion channels, while others are G protein-coupled receptors that activate intracellular signaling pathways.

Calcium or lime is a chemical element with the symbol Ca and atomic number 20. As an alkaline earth metal, calcium is a reactive metal that forms a dark nitride-oxide layer when exposed to air. Its physical and chemical properties are most similar to its heavier homologs strontium and barium.

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Answer:

The Answer is B; The Milky Way is one of hundreds of billions of galaxies.

Explanation:

Because the Milky Way is not the only galaxy in our universe, in fact, there are estimated to be more than 125 Billion galaxies in the observable universe. This information was gathered with the Hubble Telescope. Hope you find this useful!!

The correct statement about the Milky Way is Answer is C; The Milky Way is one of hundreds of billions of galaxies.

Because the Milky Way is not the only galaxy in our universe, in fact, there are estimated to be more than 125 Billion galaxies in the observable universe. This information was gathered with the Hubble Telescope.

Thus, option "C" is correct.

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Answer:

b

Explanation:

Answer:

The correct answer is : Freezing and thawing of water breaks the rocks into pieces.

Explanation:

See picture.

Answer:

C

I think

Explanation:

they would all be similer yet diferent.

Answer:

Either B or C

Explanation:

Im not to sure i think im going for C more than B please let me know if you got it correct !!! (i say go for C)

The early stages of embryonic development begin with fertilization. The process of fertilization is tightly controlled to ensure that only one sperm fuses with one egg. After fertilization, the zygote undergoes cleavage to form the blastula.

The formation of a zygote after fertilization and undifferentiated cell are common features during the earliest stages of embryo development.

In conclusion, the formation of a zygote after fertilization and undifferentiated cell are common features during the earliest stages of embryo development.

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The type of selection that tends to increase genetic variation is disruptive selection. This occurs when individuals with extreme traits have a higher fitness than those with intermediate traits, leading to an increase in genetic diversity within the population. Stabilizing selection, on the other hand, favors intermediate traits and reduces genetic variation.

Disruptive selection tends to increase genetic variation. This type of selection favors extreme traits on both ends of the spectrum, while selecting against intermediate traits. This results in a wider range of traits being present in a population, increasing genetic diversity. Stabilizing selection, on the other hand, favors intermediate traits and selects against extreme traits, resulting in decreased genetic variation over time.

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Answer:

The colorful canvas of the butterfly wing is an example of evolutionary innovation and adaptation. Compared with their ansestors, whose wings wore patterns of black, brown, and gray, the Lepidoptera (butterflies and moths) evolved a more varied palette of pigmentation.

I think it is very cool that they were able to evolve. For example, some butterflies use their bright colors to trick preators into thinking they are poisonous. The early butterflies could not do this.

Explanation:

Please brainliest!

Based on scientific information, the evolutionary path of a butterfly is primarily based on the origin of its species to eukaryotes and then to bilateria.

An evolution refers to a biological and physical process that involves a gradual change in the characteristics and genetic make-up of the various species of organisms over several generations.

Based on scientific information, the evolutionary path of a butterfly is primarily based on the origin of its species to eukaryotes and then to bilateria such as:

Butterfly is a species of living organism with various characteristics and genetic make-up that have been in existence for about 60 million years.

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Actin.

The myosin and actin filaments are the 2 protein filament types involved in the sliding filament theory of muscle contraction.

Answer:

O They are produced from molten minerals.

Explanation:

Minerals can be produce form molten rocks or materials in nature.

Minerals are solid inorganic compounds with a definite composition and an ordered atomic arrangement.

Answer:

Explanation:

If the piece of land is forested or covered with many trees, the company can decide not to bring down all the trees (leaving some trees standing) and move as many as possible nests to the available trees within it's land. This will prevent emigration of the woodpeckers and can ultimately help conserve the woodpeckers in that land and indeed the area in which the land is situated.

This is most environmentally friendly because killing or scaring away of the birds by destroying there homes could lead to imbalance in the environment and even cause gradual extinction of the birds in the environment/area.

Complete question:

Which two terms are most closely related to learned behavior?

Answer:

Explanation:

When the animal or the organism faces a problem or a situation for the first time, with no previous knowledge or innate knowledge of how to solve it, it must deal with the situation in different ways until finding the solution or the correct way to get over it. Once the animal gets over the situation, it learns how to behave the next time.

The majorly common minerals within the planet Earth are (a) silicates.

Silicate minerals make up more than 90% of the Earth's crust, making silicon the second most prevalent element there. The most widespread minerals on Earth are formed when silicon and oxygen combine. For example, sand is majorly comprised of silica (silicon dioxide), typically in the form of quartz.

2. A crucial semiconductor utilized in the production of electronics and computer chips is silicon. The silica tetrahedron, which is made up of four (b) oxygen atoms and one silicon atom, serves as the fundamental unit of all of these minerals. These are set up so that a tetrahedron is formed by planes traced through the oxygen atoms.

3. Petroleum (c) is not a mineral.

4.  (d) Multiple properties must be used to identify a mineral.

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Answer:

For anyone who needs a real answer the answer is B:34

Explanation:

Answer:

B=34

Explanation:

Answer:

Heat energy

Explanation:

Maybe ..this can be

The cell the arrow points to is a mucous cell. Mucous cells are specialized epithelial cells that secrete mucus, a thick, viscous, slippery substance composed of glycoproteins, water, and other substances.

Mucous cells are specialized cells found in the mucous membranes of the body. These cells secrete mucus, a thick and slippery substance that helps to protect the body from bacteria, viruses and other foreign particles. Mucus also helps to keep the linings of the body moist and lubricated. In the respiratory system, mucous cells help to trap dust, pollen, and other particles before they enter the lungs. Mucous cells are also found in the gastrointestinal tract, where they help to protect the stomach and intestines from the acidic digestive juices. In the reproductive system, mucous cells help to lubricate the vagina, making sexual intercourse more comfortable. Finally, mucous cells are also found in the eyes, where they help to keep the cornea moist and protect it from infection.

Mucous cells help to lubricate the structures and protect them from physical and chemical damage.

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Geologists commonly use radiometric decay methods, based on the natural radioactive decay of certain elements such as potassium and carbon, as reliable clocks to date ancient events.

To determine the ages in years of Earth materials and the timing of geologic events such as exhumation and subduction, geologists utilize the process of radiometric decay.

To determine the ages in years of Earth materials and the timing of geologic events such as exhumation and subduction, geologists utilize the process of radiometric decay.

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It is the body's b) eccrine glands that respond to higher body temperature and release water to the skin surface. Hence, the correct answer is b) eccrine.

It is the body's eccrine glands that respond to higher body temperature and release water to the skin surface and these glands are located all over the body and play an important role in regulating body temperature through sweat production.

Eccrine glands are responsible for responding to the higher body temperature and releasing water to the skin surface. They are sweat glands found throughout the body and are abundant on the palms, soles of the feet and forehead. They play key role in thermoregulation by producing sweat, which evaporates from skin surface and helping to cool down the body.

The correct answer is: It is the body's eccrine glands that respond to higher body temperature and release water to the skin surface.

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Female fireflies choose mates based on the specific flash pattern displayed by males flying nearby, which is an example of behavioral isolation.

In biology, the term behavioral isolation makes a reference to the reproductive mechanism in which mating is based on the behavior of adult individuals of the species such as in this case female fireflies.

Therefore, with this data, we can see that behavioral isolation is a type of reproductive isolation mechanism based on the behavior of individuals in order to control population numbers depending on the environmental conditions.

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Answer:

saassaa

Explanation:

For a recessive allele to manifest, two copies of it must exist.

A recessive phenotype can only be caused by two copies of a recessive allele, one from each parent. An individual with the dominant phenotype will have one dominant allele and one recessive allele for a given gene. A particular gene will only be expressed in an organism if it has two recessive alleles.

One copy of the dominant allele is all that is required for the manifestation of a dominant trait. The effects of the other allele are hidden by the dominant allele. An individual with two copies of a dominant allele often exhibits the same phenotype as an individual with only one copy.

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Answer:

you did not put a drop-down menu so I'm assuming this.

Explanation:

If an organism has more specialized cells, its cells have their own function.

1. Cells in an organism are divided on the basis of their specialization.

2. They are called differentiated cells in scientific terms.

3. Differentiated cells are found in different organs.

4.They perform function for which the organ is specific for.

5. Example, heart has cardiac cells, which functions to pump blood.

6. The characteristics of cardiac cells are that they are strong enough to resist the pressure of blood flow.

7. In the same way, liver has differentiated cells, which are called hepatic cells.

8. These perform function of metabolism and formation of bile.

9. Kidney has nephrons as differentiated cells.

10. Their function is to purify blood.

11. They achieve their function by filtering blood and urea and maintaining osmotic balance.

Answer:

All nucleotides have a common structure its a phosphate group linked by a phosphoester bond to a pentose

Explanation:

Answer:

All nucleotides have a common structure: a phosphate group linked by a phosphoester bond to a pentose (a five-carbon sugar molecule) that in turn is linked to an organic base (Figure 4-1a). In RNA, the pentose is ribose; in DNA, it is deoxyribose (Figure 4-1b).

Explanation:

Interphase is not a stage of mitosis, option A is correct.

Interphase is the stage before mitosis where the cell grows, replicates its DNA, and prepares for cell division. During mitosis, the replicated DNA is divided into two daughter nuclei, each with an identical set of chromosomes. The initial phase of mitosis, known as prophase, is when the chromosomes condense and become apparent.

Metaphase is the stage where the chromosomes align in the middle of the cell. The sister chromatids separate and migrate to the opposing poles of the cell during the anaphase stage. Telophase is the stage where the nuclear envelope reforms around the chromosomes at each pole, and the cell begins to divide into two daughter cells by a process called cytokinesis, option A is correct.

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The correct question is:

Which is not a stage of mitosis? (Check all that apply).

A) interphase

B) cytokinesis

C) anaphase

D) telophase

E) metaphase

F) prophase

Answer: a and c

Explanation: just took the test