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Mutations are brought on by environmental factors, often known as mutagens. Mutagens include things like radiation, chemicals, and pathogenic agents. Mutations can happen spontaneously in nature.

An organism's phenotype, or outward traits, may or may not be affected by a mutation. Among the good and bad biological processes that mutations participate in include evolution, cancer, and the maturation of the immune system, including junctional variation. All genetic diversity is the outcome of mutation, which also justifies the actions of evolutionary processes like natural selection. For an adaptive immune response to be successful, antigen-presenting cells (APCs), which are necessary for the smooth operation of both cytotoxic and helper T cells, must be present.

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Answer:

Option 3. Genetic material

Explanation:

Explanation:

Explain why the molecules were moving that way after energy was transferred out of them. The molecules were moving away from each other in the morning. The substance did not change phase because the energy did not overcome the attraction level of the gas in the tank.

Answer:

The correct answer is - all the cell organelles are correctly matched with the functions already -

Nucleus - controls all the functions of the cell.

Lysosomes - breaks down food eliminate the waste of the cell

Cytoskeleton - provides structure and allows movement in the cell

Cell membrane - protects against invaders and control internal structures from the external environment

Mitochondria - break down nutrients to produce energy

Vacuole - stores water and waste

Cell Wall - provides protection and support

Cytoplasm - transports material within the cell

Centriole - makes new cells (new humans)

Smooth Endoplasmic Reticulum - helps to synthesis hormones

Explanation:

In the cell, there are different organelle present that has specific functions. The nucleus is the cell organelle that has genes and DNA that controls various functions of the cell. Lysosomes are the cell organelle that removes waste from the cell and also helps in the digestion or breakdown of the fat. The mechanical support and movement are allowed by the cytoskeleton.

The cell wall is the external structure that provides support to the cells. Mitochondria is the cell structure that provides energy. Smooth ER provides the hormone's synthesis. Cytoplasm transports material within the cell.

Answer: One of the first tests a pregnant woman should expect is a blood-type test. This test checks her blood type and Rh factor. Her Rh factor may play a role in her baby's health, so it's important to know this information early in pregnancy.

Explanation: if you're Rh negative and your baby is Rh positive, your body might produce proteins called Rh antibodies after exposure to the baby's red blood cells. The antibodies produced aren't a problem during the first pregnancy. The concern is with your next pregnancy.

The four important things which a habitat provides an organism are shelter, food, water and space.

A habitat is basically the place or the environment in which a particular organism lives. A habitat consists of both the biotic as well as abiotic factors. An organism can survive in a particular area if all its basic needs are met and the habitat therefore offers the organism with everything that it needs in order to survive which include a range of conditions.
The habitat provides an organism food, water and sunlight which are required for energy as well as growth. It also allows the organism to live and thrive there and therefore it provides shelter.

It also gives an organism space. Every organism needs different amount of space and therefore their habitats are specific to them, For example, big animals live in the forests and smaller animals like moles can burrow holes in the ground and survive.

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Energy cannot be created or destroyed; it can only be changed from one form to another, according to the rule of conservation of energy.

An isolated system's total energy is constant over time in accordance with the rule of conservation of energy. The law of energy conservation applies to all kinds of energy.

Most importantly, energy conservation can be accomplished by either using less energy or by using fewer services. First of all, conserving energy is crucial for preserving non-renewable energy sources. Additionally, the regeneration process for non-renewable energy sources takes centuries.

In the planning and construction of buildings, energy conservation is crucial. Since the 1970s, its prominence has grown. Concern about the implications of climate change has recently energy conservation is crucial, as concern over climate change and global warming has highlighted.

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Answer:

All answers are in the images

Answer:

The atomic number of an element which gives it valency.

From the valency, we get the ionic charge.

The greater the ionic charge, the greater the reactivity.

Answer:

I think it's

7 - c

8 - a

9 - b

If this isn't correct please let me know so I can change it I am just trying to get you an answer.

Answer: fault boundary

Explanation:

Answer:

earthquakes and flooding

Explanation:

Answer:

Competition

Explanation:

Density-dependent limiting factors are factors that are dependent on the density of the species; for example, if the density is low, there is not much competition, so it won't be a limiting factor, but this isn't the case when density is high.

Four types of evidence for evolution are listed as follows:

1. The evolution of older species as seen in the fossil record.

2. the shared chemistry and anatomy of related biological species.

3. the geographical distribution of species that are linked.

4. the genetic alterations that have been observed in living things over many generations.

Organisms undergo gradual change over long periods of time by descent with modification. This transformation results from the organism's adaptation to its changing surroundings, climatic circumstances, style of life, etc. We can support the theory of evolution with some evidence. The following are the primary examples that bolster the theory: The structure of an organism has changed with time and is no longer the same as it was in the past, according to fossil evidence. According to evidence from embryology, different species that are descended from the same evolutionary ancestor share structural characteristics. In all earthly living organisms, the evolution of their basic chemical compositions and anatomical structures is fundamentally the same. No matter how complex the creature, whether they are tiny single-celled protozoa or incredibly complex organisms with billions of cells, they all begin as single cells and reproduce themselves by similar division methods (click this button to hear the term before it is pronounced). They all have a limited lifespan, get old, and die. Another cue concerning earlier evolutionary processes comes from the regional natural distribution of closely related species. It is clear that isolated, vast land masses and groups of islands commonly established their own distinct plant and animal species.

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Behavioral adaptations, physiological adaptations and structural adaptations are the three types of adaptations which enable an organism to survive.

All living organisms need to adapt in order to survive. There are three types of adaptations which can enable a particular organism to survive and they include the behavioral, physiological and structural adaptations.

Structural adaptations are basically the unique features present in an organism's body which help it to survive in a particular condition. For example, ducks have webbed feet which help them to swim. The changes in different processes that occur inside an organism's body include the physiological adaptations. For example, some spiders change the physiological processes in their body to weave webs using different spider silks. Behavioral adaptations are changes in the actions which allow the organism to survive. For example, coyotes communicate by howling at night.

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Answer:

the top of the pyramid because they are the predators of some animals

Explanation:

Answer:

Sample Response: The structure of the lake ecosystem will likely become less diverse due to the introduction of the water hyacinth. Because the plants do not have any natural predators, they will grow in large quantities. These dense areas of growth will outcompete water plants that grow underneath the surface, causing them to die. Light would be blocked from reaching plants underneath the water hyacinth, decreasing native plants and algae below the surface. This could also have negative effects on the herbivores that feed on the native water plants, as they will not have as much food.

Explanation:

what app do you use for math?

Mendel concluded that traits can be divided into overt and latent traits. He named these dominant and recessive traits respectively. Dominant traits are traits that are inherited unchanged by hybridization.

Mendel developed his three principles of heredity to explain the transmission of hereditary traits before anyone knew that genes existed. Mendel's laws of inheritance​ greatly expanded our understanding of heredity and led to the development of new experimental methods.

Mendel's conclusion:

Genetic determinants are unique in nature. These determinants are called genes. Each parent has a pair of genes in each cell for each trait tested. F1 from a cross between two pure strains contains one allele with a dominant phenotype and one allele with a recessive phenotype.

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Photosystem II cannot repair photodamage if the Calvin cycle is disturbed.

When the Calvin cycle enzymes' activity are impaired, photosynthetic organisms experience more Photosystem II photoinactivation (PSII). We investigated the chemical process generating this phenomenon in the single-celled green alga Chlamydomonas reinhardtii. When glycolaldehyde, which is known to block phosphoribulokinase, upset the Calvin cycle, the degree of photoinactivation of PSII increased. Glycolaldehyde's effects were strikingly similar to those of chloramphenicol, which blocks the start of protein synthesis in chloroplasts. A missense mutation was inserted into the ribulose-1,5-bisphosphate carboxylase/oxygenase (Rubisco) gene, which interrupted the Calvin cycle and enhanced PSII photoinactivation.

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Plants have two distinct stages in their lifecycle: the gametophyte stage and the sporophyte stage. After reaching maturity, the diploid sporophyte produces spores by meiosis, which in turn divide by mitosis to produce the haploid gametophyte. The new gametophyte produces gametes, and the cycle continues.

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The ventral surface of the sheep brain contains several important glands, such as the pineal gland, the olfactory bulb, the pituitary gland, and the mammillary body.

The pineal gland, also known as the epiphysis cerebri, is a small endocrine gland that is located in the diencephalon, the middle part of the brain. The pineal gland produces the hormone melatonin, which helps to regulate the body's circadian rhythm, or internal clock. Melatonin helps to regulate the sleep-wake cycle, and its production is influenced by the amount of light that the body is exposed to.

The olfactory bulb, also known as the bulbus olfactorius, is a small structure located in the forebrain, the front part of the brain. The olfactory bulb is responsible for the sense of smell, and it receives input from the olfactory receptors located in the nose. The olfactory bulb is a key part of the olfactory system, which is responsible for detecting and identifying odors.

The pituitary gland, also known as the hypophysis, is a small endocrine gland that is located at the base of the brain, near the hypothalamus. The pituitary gland is considered the "master gland" of the body because it produces several hormones that regulate the activity of other endocrine glands, such as the thyroid and the adrenal glands.

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Answer:

Maybe exoskeleton?

During C. Late disease of the human immunodeficiency virus (HIV) infection, significant neurologic findings occur.

HIV infection progresses through the following stages if not treated:

1. Seroconversion illness Some individuals develop a brief illness shortly after contracting HIV. Seroconversion illness or primary or acute HIV infection are terms for this condition.

2. The HIV asymptomatic stage: Most people feel fine and don't have any symptoms after seroconversion. This stage, also known as the asymptomatic stage, can last for years.

3. Symptomatic HIV: The greater your risk of developing infections that your weakened immune system is unable to combat, the longer you live with HIV without treatment: HIV's direct effects, as well as some cancers.

4. Late-stage HIV: If HIV has a chance to do a lot of damage to your immune system, you might get cancer and other serious infections and opportunistic diseases. These conditions are also referred to as "AIDS-defining."

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Answer:

Explanati

Temporal isolation

Temporal isolation happens when two or more species reproduce at different times.on:

Answer:

carbohydrates

Explanation:

Organic molecules composed of carbon, hydrogen, and oxygen in a ratio of 2-hydrogen atoms to every 1 oxygen atom.

Answer:

Inherited disorders are caused by gene mutation. These include sickle cell anemia, hemophilia, color blindness.

Explanation:

Answer:

Natural selection

Examples of various concepts of the natural section are

Variation: Eye colour, body form, and disease resistance,

competition: Plants compete with each other for light exposure, temperature, humidity, pollinators, soil nutrients and growing space

struggle for survival: migration, hibernation, food collecting and storage, defensive actions, and child-rearing.

The term "natural selection" refers to the process through which populations of living organisms adapt and change. Because population members are naturally different, each member of a population is unique in some aspects. This variation demonstrates how some people are more likely than others to have characteristics that fit in with their environment.

More environment-adapted species typically survive and reproduce more frequently than less environment-adapted ones through a process called natural selection. For instance, tree frogs are occasionally eaten by birds and snakes.

Natural selection is the term for Charles Darwin's theory of evolution. Due to the scarcity of resources in nature, animals with heritable features that help in survival and reproduction frequently produce more offspring than their contemporaries, increasing the prevalence of such traits through successive generations.

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