The aspects of cell structure best reveal evolutionary unity is that the genetic material is a good evidence of evolution because it's been conserved through time but with some slight differences.
What are the important aspects of evolutionary unity?The important aspect is the mitochondria. The mitochondria resulted from a symbiotic relationship between bacteria and pre-eukaryotes. Explaining why the mitochondria looks like a bacteria and has bacterial DNA.
The specialized cellular modifications are there are cellular modifications happening in multicellular organisms. That means, they have different types of cells, with different functions and will express different characteristics and the examples are Nerve cells have dendrites which is important to receive the electrical signal from another neuron, other cells don't have that and Sperm cells have a tail ( flagellum) in order to swim through the vagina and no other cell has that.
Therefore, The aspects of cell structure best reveal evolutionary unity is that the genetic material is a good evidence of evolution because it's been conserved through time but with some slight differences.
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The process in which sperm and egg cells join is called ____________________.
Fertilization is the process in which egg and sperm cells unite to form a zygote. This is facilitated by acrosomal reactions that allow the fusion of egg and sperm membranes and transfer of the sperm nucleus into the ovum.
Explanation:The process in which sperm and egg cells join is called fertilization. This involves the fusion of gametes, an egg and a sperm, to form a zygote. In mammals, a layer called the zona pellucida protects the egg. A series of events known as acrosomal reactions take place when a sperm binds to this layer, allowing the sperm plasma membrane to fuse with the egg plasma membrane. Thus, the sperm nucleus is able to transfer into the ovum. The nuclear membranes of the egg and sperm break down, and their two haploid nuclei fuse to form a diploid nucleus or genome.
Fertilization is the fusion of the gametes, a sperm and an egg, to form a zygote. It involves a series of biochemical events, including the acrosomal reactions, which allow the sperm plasma membrane to fuse with the egg plasma membrane and transfer the sperm nucleus into the ovum.
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In healthy, physically fit women, _______ exercise is related to _____ birth weight.
What is the function associated with the indicated neural activity?
"where does the bond form that binds one strand of dna to its other strand"
Depolarization of hair cells in the utricle occurs when ________.
NEED A ANSWER FAST I THINK IT IS A PLZ HELP ME!!!!!
The study of anatomy is divided into two fields, gross anatomy and microscopic anatomy. Which of the following scenarios involves microscopic anatomy?
A histologist creates a tissue culture in the lab.
B doctor finds a broken bone in an injured patient.
C chiropractor determines the curve of the spine.
D medical student examines the heart of a cadaver.
Answer:
A to, since the tissues are the closet thing to cell, which microscopic anatomy studies.
Explanation:
The surgical repair of a vessel is _____.
Which of the following statements explains how carbon enters the soil during the carbon cycle? A. /Carbon enters the soil when decomposers produce it. /B.Carbon enters the soil when organisms die and become fossilized /C. Carbon enters the soil when humans perform respiration and exhale it. /D. Carbon enters the soil when plants make glucose and deposit it into the soil.
whats the answer A/B/C OR /D
Carbon is deposited into the soil through decomposers which digests and generate carbon when organisms die and become buried beneath the soil. This process also is observed during the carbon cycle. Carbon cycle is a biogeochemical cycle where the transfer of carbon from the different spheres of the earth occurs. This involves the geosphere, hydrosphere, atmosphere, pedosphere and most especially, the biosphere.
Carbon enters the soil when plants make glucose and deposit it into the soil.
Explanation:The correct statement that explains how carbon enters the soil during the carbon cycle is Option D. Carbon enters the soil when plants make glucose and deposit it into the soil. During photosynthesis, plants convert carbon dioxide from the atmosphere into glucose, which is then used for growth or stored in the roots and leaves. As plants decay or are consumed by decomposers, the carbon is released back into the soil as organic matter.
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Two students are investigating the relationship between net force and acceleration on an object. They tie a string to a 1-kg block resting on a horizontal table. The string is run over a pulley and attached to a 100-gram weight hanging above the floor. The acceleration of the block is then calculated as the block falls to the floor.
Which statement would best describe the greatest source of error in this investigation and suggest a reasonable method to reduce this error?
A) The block would have friction and a dynamic cart could be used.
B) The block on the table has too much mass and should be increased
C) The falling mass is too small to accelerate the block and should be increased.
D) A pulley has friction and the hanging mass should be replace with a spring scale.r
The correct answer is actually A) The block would have friction and a dynamic cart could be used.
I have a screenshot attached.
Hope that helps!
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What is the main piece of legislation governing how water quality is regulated in the Everglades? Clean Water Act Dirty Water Act Clean Up Your Act Everglades Water Quality Act Question 11 (Essay Worth 5 points)
Answer:
Option A , Clean water act
Explanation:
The clean water act is the regulatory document that formulate the basic structure of controlling the discharge of waste and pollutant into the water. This act came into being in 1948 and was further amended in 1972. Under this act standards were set for wastewater discharge from industries and surface water.
Also the discharge of waste into navigable water without prior permission was made unlawful
hence, option A is correct.
In a watery environment polar amino acids want to have contact with
Which area of the limbic system has considerable influence on the secretion of hormones throughout the body?
The hypothalamus.
The hypothalamus links the nervous system with the endocrine system. It's part of the limbic system but can also synthesizes and secretes hypothalamic hormones. These hormones will either stimulate or inhibit the pituitary gland, which releases hormones that go throughout the body to the glands and organs.
Hypothalamus is the part of the limbic system that has considerable influence on the secretion of hormones throughout the body.
Further Explanation:
The parts of the brain that are located under the temporal lobe sandwiching the thalamus collectively constitute the limbic system. The limbic system was first defined by Paul D. MacLean. The biggest area of the brain is occupied by the forebrain. The limbic system, the hypothalamus, thalamus, and the pineal gland are the structures of the forebrain. A tiny structure in the brain that is present just on the brain stem in between the cerebral cortex and midbrain is called the thalamus.
The part of the forebrain that lies beneath the thalamus is known as the hypothalamus. Hypothalamus means "under the thalamus" This part of the brain is responsible for the control and coordination of the autonomous nervous system, the pituitary gland secretion, the thirst, temperature and systems of homeostasis.
Two different sets of nerve cells that are present in the hypothalamus stimulates the production of the hormones. The maintenance of proper production of all the hormones is done by the gland. One set of the nerve cells transports the hormones produced by hypothalamus to the pituitary stalk from where the hormone is transported to the posterior lobe of the pituitary gland. These hormones (ADH and oxytocin) are then released in the bloodstream.
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Answer Details:
Grade: High School
Subject: Biology
Chapter: The limbic System.
Keywords:
Brain, forebrain, thalamus, limbic system, pineal gland, hypothalamus, temperature, sleeping, reproductive functions, amygdala, hippocampus, mid brain, cerebral cortex, limbic system.
What does atp stand for? what is its main function in the cell? how many phosphate groups does it have?
What maternal physiological changes can be observed initially during the postpartum period?
Science Help !Determining Total Magnification: The eye piece (ocular lens) you “looked” through on the virtual microscope had a power of 10x. If you were using the 4x objective lens, what would the total magnification before the specimen you are viewing? Show your work!!
The total magnification of a microscope can be determined by multiplying the power of the ocular lens by the power of the objective lens. In this case, with an ocular lens power of 10x and an objective lens power of 4x, the total magnification is 40x.
Explanation:In microscopy, the total magnification is determined by multiplying the power of the ocular lens by the power of the objective lens. According to the question, the power of your ocular lens, which is the lens you look through, is 10x. The power of the objective lens, which is the one closer to the specimen, is 4x.
To calculate the total magnification, you simply multiply the ocular lens power by the objective lens power (10x * 4x), which gives you a total magnification of 40x. This means that the specimen you are viewing appears 40 times larger than its actual size when viewed through the microscope.
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The total magnification before the specimen can be determined by multiplying the magnification of the ocular lens by the magnification of the objective lens. In this case, the total magnification is 40x.
Explanation:The total magnification before the specimen can be determined by multiplying the magnification of the ocular lens by the magnification of the objective lens. In this case, the ocular lens has a power of 10x and the objective lens has a power of 4x. Therefore, the total magnification before the specimen is:
Total magnification = Ocular magnification × Objective magnification
Total magnification = 10x × 4x = 40x
So, the total magnification before the specimen is 40x.
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Restrictive pulmonary disease resulting from prolonged inhalation of fine dusts is termed:
What brain structure relays information from the eyes to the visual cortex?
The process of removing and fixing orphan records is often called ____.
The process of removing and fixing orphan records is commonly called Referential Integrity Checking or cleanup. These are records that lack corresponding entries in the related table. Maintaining referential integrity ensures data reliability.
The process of removing and fixing orphan records in a database is often called Referential Integrity Checking or cleanup. Orphan records are those records that don't have corresponding records in the related table. For example, in a library database, a record of a book that doesn't have a matching author record could be considered an 'orphan'. This can occur due to deletion, software failure, or other issues. Data integrity is crucial to maintaining correct and reliable data in a database. The process of referential integrity checking ensures that there are no orphan records.
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A disorder characterized by hemorrhage diathesis is one in which insignificant injury leads to unusual bleeding.
statistics about the climate in a tundra ecosystem were collected for 30 years. which hypothesis about a population of caribou could be made based on the climate data collected?
a. caribou calf survival is directly related to annual rainfall amounts.
b. an outbreak of disease in 1984 killed 35% of the caribou population.
c. caribou remain with the same mate throughout their lifetime.
d. mortality of caribou from hunters was less than 5%.
Answer: a. Caribou calf survival is directly related to annual rainfall amounts.
Explanation:
A hypothesis can be define as the presupposed explanation of the cause of natural event or natural phenomena. It exhibit some kind of evidences and facts that are required to be tested on the basis of suitable scientific methodology.
Among the given options, a. Caribou calf survival is directly related to annual rainfall amounts. is the correct option because here the population of the surviving Caribou calf can be compared with the recorded or measured amounts of annual rainfall. Hence, the information is testable by scientific procedures therefore, it is an example of hypothesis.
Ging, smaller-breed dogs are more likely to develop ______ than either larger-breed dogs or aging cats
The chronic valvular disease may affect many breeds but is the most common in smaller breeds. Many aged dogs develop some valvular degeneration, but it is mostly on smaller breeds that heart symptoms come up. This is a degeneration most likely connected to genetic factors.
Vikings colonized new areas while exploring and raiding the waters of which ocean?
Which group of minerals are the most abundant in the earth's crust?
Oxygen, silicon, iron and aluminum are the most abundant elements in the Earth's crust accounting for 88.1% of its mass.
What is Earth crust?The crust is defined as the outermost layer of the earth's surface and is made up of a large variety of igneous, metamorphic and sedimentary rocks. The crust lies beneath the mantle, while the upper part of the mantle is composed mostly of peridotite, a rock denser than the rocks common in the upper crust.
There are tectonic plates in this part of the Earth that provide a platform to all the land on Earth that was formed about 4.6 billion years ago, just after the Earth's crust solidified the planet. This part consists of several minerals such as Oxygen, silicon, iron and aluminum.
Thus, Oxygen, silicon, iron and aluminum are the most abundant elements in the Earth's crust accounting for 88.1% of its mass.
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Most living organisms consist of more than 70% water by weight true or false
The _____ detect shades of grey and is/are responsible for peripheral vision, which the ______ is/are responsible for color vision and seeing fine detail.
Why is the liver such an important organ in a vertebrate’s biological system?
Gypsum and quartz can look very similar. which test can help you distinguish them?
The test that they can use in differentiating the gypsum and quartz which are considered to be minerals is the mineral test. The mineral test can differentiate the hardiness of the minerals, as well as their; acidity, magnetism, streak, specific gravity and even their tenacity.
Describe what happens to chromosomes before mitosis.
A primary healthcare provider prescribes a urinalysis for a client with an indwelling catheter. to ensure that an appropriate specimen is obtained, the nurse would obtain the specimen from which site?
Answer:
The nurse should obtain the specimen from the catheter.
Explanation:
Part a - the cell cycle drag the pink labels onto the pink targets to identify the two main phases of the cell cycle. then drag the blue labels onto the blue targets to identify the key stages that occur during those phases.
The two main stages of the cell cycle are interphase and M phase. Interphase is further segregated into G1, S, and G2 phase while the M phase is segregated into prophase, metaphase, anaphase, and telophase.
Further Explanation:
The cell cycle refers to an ordered flow of events which includes cell growth as well as cellular division. This cycle produces 2 new daughter cells. The cycle starts with interphase; during which, the cell grows and replicates its own DNA or deoxyribonucleic acid. The interphase begins with:
1. G1 phase: This is the primary growth phase provide nutrient to the cell.
2. S phase or synthesis of DNA: During this phase, the replication of DNA takes place. The centrosome is divide and forms mitotic spindle during the mitosis phase.
3. G2 or second gap: during this phase, the cell mainly replenishes its energy stores as well as synthesizes the proteins which are required for the chromosome manipulation.
The second phase of the cell cycle is the mitosis or M phase. Mitotic phase refers to a multiphase process during which the chromosomes are aligned, segregated, and moved into the 2 new daughter cells which are identical to each other.
This phase starts with:
1. Prophase: During this phase, the condensation of the chromosomes takes place and these chromosomes become visible. Spindle fibers formation take place, breakdown of the nuclear envelope, and nucleolus disappear.
2. Metaphase: During this phase, the formation of spindle fibers is completed and centrosomes are found at the opposite terminals of the cell. The chromosomes line up at the metaphase plate. Each of the sister chromatids is linked to the spindle fiber starting from the opposite poles.
3. Anaphase: During this phase, the cohesion proteins link with the sister chromatids and splits them down. The sister chromatids are pulled towards the opposite terminals of the cell and the non-kinetochore spindle fibers mainly lengthen and elongate the cell.
4. Telophase: During this last phase, the chromosomes arrive at the opposite terminals and start to decondense. Nuclear envelope reappears, and mitotic spindle breaks down. This marks the end of the mitosis.
The end phase of the cell cycle is called cytokinesis wherein the cleavage furrow occurs are segregates the daughter cells. In plant cells, the cell plate is responsible for the segregation of the daughter cells.
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Answer Details:
Grade: High School
Subject: Biology
Chapter: Cell Cycle
Keywords:
Cell cycle, cell division, cell growth, interphase, M phase, mitotic phase, mitosis, G1, S phase, G2 phase, cytokinesis, metaphase, animal cell, telophase, plant cell, prophase, anaphase.