In forensic analysis, the root of the hair needs to be collected in order to consider it as class evidence.
Explanation:In order to consider hair class evidence, the root of the hair needs to be collected. The root contains DNA material that can be used for identification purposes. Hair shafts alone cannot provide sufficient information for forensic analysis.
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Why are 90% of sexually ambiguous newborns assigned to the category of "female" in societies with advanced medical technology?
What biodiversity restoration method can biologists follow to increase the density of trees and the canopy thickness in an area to recreate suitable habitats for wildlife and fight climate change?
biological augmentation
bioremediation
canopy fogging
hotspot protection
reforestation
Answer:
The Correct Answer is "Reforestation".
Explanation:
Reforestation is the genuine and intentional method of re-establishing remain forests that have been decreased by various human and natural activities such as deforestation and natural calamities.Reforestation develops the quality of human life by drenched up pollution and dust from the Air.Scientist and biologists use the reforestation method to increase the density and thickness of the trees and also plant more and more trees.
The ______________ is the part of the brain that regulates breathing, heart rate, blood pressure, and reflexes.
Final answer:
The brainstem is responsible for the regulation of numerous vital functions, including breathing, heart rate, and blood pressure, with the medulla, in particular, overseeing these processes.
Explanation:
The brainstem is the part of the brain that regulates breathing, heart rate, blood pressure, and reflexes. This hindbrain structure controls automated processes critical for life, connecting the brain with the spinal cord. Within the brainstem, the medulla specifically oversees vital unconscious functions such as breathing, blood pressure, and heart rate. The brainstem also includes other parts like the midbrain and the pons, which together support a range of automatic functions necessary for our survival.
Chlorophyll b absorbs in green wavelengths of light that chlorophyll a cannot absorb. in this respect, chlorophyll b acts as
Chlorophyll b is an accessory pigment. Chlorophyll a is an essential pigment.
What are essential pigments?
The range of wavelengths that a pigment absorbs is known as its absorption spectrum. The absorption spectra of three important pigments involved in photosynthesis—chlorophyll a, chlorophyll b, and -carotene.
Chlorophylls come in five main categories: chlorophylls a, b, c, and d, as well as bacteriochlorophyll, a similar chemical found in prokaryotes. The two primary photosynthetic pigments in plants are chlorophyll a and chlorophyll b. Blue and red wavelengths are absorbed by chlorophyll molecules.
Therefore, Chlorophyll b is an accessory pigment. Chlorophyll a is an essential pigment.
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Changes in a person's height and weight during middle adulthood are accompanied by a decline in
The simplest structured unit of a compound is a(n):
electron
atom
proton
molecule
Jake wants to enrich the nitrogen content of his soil through fixation. Which crop can he use for this purpose?
Answer:
Alfalfa
Explanation:
Why does sexual reproduction result in more genetic variation than asexual reproduction?
PLZ HALP!!! What happens during interphase that allows the two resulting cells to be the same as the original cell?
Answer:
Inter phase is the resting phase between two cell cycles
Explanation:
The inter phase is the longest phase in the life cycle of a cell and is also known as resting phase of the cell in which the cell performs the following activities -
a) Cell acquire nutrients
b) Cell creates proteins and other molecules and uses them
c) Cell also starts replicating DNA molecule
c) Cell starts preparing for the process of cells division
There are three stages in a cell cycle -
a) Gap 1 phase
b) Synthesis phase
c) Gap 2 phase
The major function of inter phase is to prepare cell for cell division.
Which part of the brain is associated with ten of the 12 pairs of cranial nerves?
An episodic narrative involves parts which are not closely interrelated.
The majority of damage caused by volcanoes is from lava flows. T or F
Each day, Earth receives 10,000 times the total energy used by all human beings. The source of this energy is _____. the sun cosmic rays the moon ocean tides
Answer:
The correct answer is the sun.
The sun is the ultimate source of energy of a food chain. This energy is trapped by the green photosynthetic plants under the process of photosynthesis.
Plants only absorb 2-8% of the PAR (photosynthetically active radiation- 400 700 nm) fallen on earth.
In addition, only 10% of the energy is transferred from one trophic level to the next one and rest 90% is dissipated in metabolic process or heat.
It is the reason that earth receives 10,000 times the total energy used by human beings as we are present on I and II trophic levels in a food chain.
Hippocampal cells that become active only when the subject is in particular locations are called spot cells. location cells. complex cells. place cells. simple cells.
Calcite and aragonite minerals that constitute clam shells are examples of which method of mineral formation?
The correct method of mineral formation for calcite and aragonite minerals that constitute clam shells is biogenic precipitation.
Biogenic precipitation is a process where minerals are formed as a result of biological activity. In the case of clam shells, the organism (clam) extracts calcium and carbonate ions from the surrounding water to form the minerals calcite and aragonite, which are both calcium carbonate (CaCO3) but have different crystal structures. These minerals are then deposited in an organized manner to create the hard, protective shell of the clam. This biological process is a key example of biomineralization, where living organisms produce minerals that often have specific functions, such as providing structure and protection.
Why is cellular respiration important to the biosphere?
What cell parts are found only in plant cells? What are found only in animal cells? Use complete sentences.
Answer:
Plant cell parts are cell wall, chloroplast. Animal cell parts are centrosomes and lysosomes.
Explanation:
Animal and plant cells are eukaryotic cells but still shows many structural differences.
Plant cells contain chloroplast because they perform the process of photosynthesis. Animal cells lack chloroplast. Cell wall is present in plant cells and absent in animal cells.
Animal cells have centrosomes that helps in the formation of spindle fibers,. Lysosomes perform the process of cellular digestion in animals.
Thus, plant cells have cell wall and chloroplast whereas animal cells have lysosomes and centrosomes.
Cell parts which are found only in plants cells include the
following:
Cell wallChloroplast.Cell parts which are found only in animals cells include the
following:
CentrosomesLysosomes.What are Organelles?These are regarded as cell parts which are involved in various
activities in the cell.
Plant and animals have different cell parts as listed above due
to different biochemical activities which takes place within them
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One difference between mitosis and meiosis is:
A. Mitosis produces cells genetically identical to the parent cell, but meiosis does not
B. Mitosis produces more daughter cells than meiosis
C. Mitosis produces haploid cells, but meiosis produces diploid cells
D. Mitosis requires only one parent cell, but meiosis requires two parent cells
Mitosis divides a parent cell into two identical daughter cells, each of which has the same amount of chromosomes. Meiosis, on the other hand, creates four distinct daughter cells, each of which has half as many chromosomes as the parent cell.
Answer : A, B
Does mitosis result in cells that are exactly like the parent cell?Daughter cells that are genetically identical to their parent cells are created during mitosis. The cell divides its copied chromosomes equally to ensure that each daughter cell has a full set before copying, or "replicating," its chromosomes.
A single cell divides into two identical daughter cells during the process of mitosis (cell division). facts Describe meiosis. A single cell splits twice during the meiotic process, resulting in four cells with half the original genetic material.
Despite being all haploid, the gametes created during meiosis are not all genetically identical.
The nuclei produced from meiosis are not genetically identical and they carry one chromosomal set only. This is half the number of chromosome sets in the initial cell, which is diploid.
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In gluconeogenesis, during the postabsorptive state, amino acids and ________ are converted to glucose.
What characteristics of organisms older than 540 million years ago makes fossils?
Which statement describes the role of the organism indicated by the blue arrow in the food web?
A. A primary producer that recycles organic molecules from sunlight
B. A secondary consumer that obtains its energy from the consumption of animals
C. A primary consumer that obtains its energy from the consumption of animals
D. A secondary consumer that recycles organic molecules by breaking them down
Answer:
B. A secondary consumer that obtains its energy from the consumption of animals.
Explanation:
The red-tailed hawk is a secondary consumer because it feeds itself on primary consumers those that eat plants, herbivores. Secondary consumers, by definition, obtain their energy from eating other animals. Secondary consumers are also usually the ones that stand on the second and above rows of a food chain, being the plants at the bottom and the primary consumers just above the plants.
How are hazards identified during mission planning?
Hazards are identified in mission planning through a process known as risk assessment, comprising of identification of hazards, assessment of risk, development of controls and evaluation of control effectiveness, with continuous evaluation ensuring effective hazard management.
Explanation:Hazards are identified during mission planning through a process known as hazard analysis or risk assessment. This involves reviewing all aspects of the mission, including its objectives, resources, and environmental conditions. It consists of four key stages: identification of hazards; assessment of risk; developing controls; and evaluation of control effectiveness.
For instance, if the mission is launching a satellite into space, potential hazards might include equipment failure, adverse weather conditions, or human error. Each of these risks is assessed in terms of its potential impact on the mission and the likelihood of its occurrence. Controls are then developed to help mitigate these risks, such as double-checking equipment, checking weather forecasts, and providing thorough training to all personnel involved.
Throughout this process, continuous evaluation is conducted to ensure that all identified hazards have been effectively managed, and the mission can be carried out safely and successfully.
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A student is studying mitosis, in which a cell divides to form two cells. Which of these shows the CORRECT mathematical model for the process if Nold shows the number of chromosomes in the parent cell and Nnew shows the number of chromosomes the individual daughter cells?
A) Nnew = Nold
B) Nnew = Nold/2
C) Nnew = 2 × Nold
D) Nnew = 4 × Nold
The right answer is A) Nnew = Nold
Mitosis is a process of cell division that makes it possible to obtain from a mother cell two identical daughter cells to each other (and at the same time to the mother cell). So their chromosome number of the daughter cells is identical to those of the mother cell.
Difference between ancestral and derived traits
Seismic waves and water can weaken soil, causing it to move. This is called _____.
A.flooding
B.liquefaction
C.seismic shifting
D.earthquake erosion
this is called LIQUEFACTION
The correct answer from these choices is liquefaction.
Which action in the biology laboratory would be most likely to result in an accident?
Answer:
C,throwing a test tube at another student
Explanation:
HELP ENVIRONMENTAL SCIENCE!!!!!!!!!!!
What was the most important result of the meireki fire of 1657 in edo?
a) it decreased the population of the city, thereby reducing timber demand
b) it cleared large tracts of the city for agriculture
c) it caused the ruling class to realize the dangers of deforestation
d) it decreased competition between the daimyos for resources
Option C i.e It caused ruling class to realize dangers of deforestation is the correct answer.
Meireki fire of 1657 in Edo caused huge loss of lives and two-third of the city got completely destroyed.
The most important result of the fire was that the ruling class realized the dangers of deforestation and began to make laws for the protection of forests and trees.
What product of the preparatory phase of glycolysis is required in the payoff phase, but at twice the concentration?
Vacuoles are ________. manufactured by ribosomes found only in plant cells composed of microtubules membranous sacs
Final answer:
Vacuoles are membranous sacs present in eukaryotic cells and are involved in storage and transport. They are distinct from ribosomes, which are not membrane-bound and are involved in protein synthesis. Vacuoles are prominent in plant cells but are also found in animal cells, albeit smaller and less permanent.
Explanation:
Vacuoles are membranous sacs essential for the storage and transport of substances within eukaryotic cells. They are enclosed by a single membrane and vary in function from one cell type to another. In plant cells, vacuoles play several roles, including maintaining turgor pressure, storage of nutrients, and waste products, and can contain enzymes that break down macromolecules. In contrast to vesicles, vacuole membranes do not fuse with other cellular membranes. Although vacuoles are present in some animal cells, they are more prevalent and larger in plant cells, often consolidating into a single large central vacuole as the plant cell matures.
Ribosomes, another cellular component often mistaken with vacuoles, are the sites of protein synthesis. However, unlike vacuoles, ribosomes are not membrane-bound and are composed of ribosomal proteins and RNA. They can be found attached to the endoplasmic reticulum or floating freely within the cytoplasm. It's clear that vacuoles are not manufactured by ribosomes, nor are they composed of microtubules. They have specialized functions that are crucial for the cell's viability and operation.
Many crops such as tomatoes and corn are now routinely genetically manipulated to become more resistant to disease and herbicides. what is one disadvantage of this genetic resistance?
As the crop of tomatoes and corn get genetically resistant to diseases and pest attacks, the other crops which grow along with the main crop specifically the weeds get destroyed. This is so because the pest that earlier attacked the tomatoes and corn now only have weeds and other unwanted plants that can be attacked and fed upon. This may disturb the micro ecosystem with in the agricultural field.