Answer:
passive transport
Explanation:
Diffusion is one of the ways molecules/substances move or is transported. It is the process whereby substances move from a region of higher concentration to a region of lower concentration until there is an even distribution. Movement via diffusion occurs down a concentration gradient i.e high to low.
Since diffusion occurs down a concentration gradient, which is difference in concentration of a substance, it requires no energy in form of ATP to occur. This kind of transport which requires no energy input is called PASSIVE TRANSPORT, in contrast to active transport which requires.
What is the difference between the nervous system of a Sponge and a Hydra?
Question 3 options:
The cells in a sponge respond to the environment individually, while a hydra has a true brain
The cells in a sponge respond to the environment individually, while a hydra has a very simple netlike nervous system that allows a coordinated response to a stimulus
The cells in a hydra respond to the environment individually, while a sponge has a very simple netlike nervous system that allows a coordinated response to a stimulus
The cells in a hydra respond to the environment individually, while a sponge has a true brain
Answer:
A
Explanation:
What piece contains a low-
power magnifying lens (4x)?
Low-power
Objective
High- power Objective
Stage
Eyepiece
Answer:
Low power objective lens
Explanation:
On a standard microscope with three objectives on the nosepiece, the lowest objective lens is usually 4x magnification.
The high power objective is usually 40x magnification.
Hope this helps!
The piece that contains a low-power magnifying lens (4x) is a low-power objective..
A low power objective is a short-length objective lens, which is often is useful for aligning the microscope.A low power objective can be used to examine and identify large specimens or many smaller specimens. The total magnification obtained from a low-power magnifying lens (4x) when combined with a 10x eyepiece lens is a 40x magnification.In conclusion, the piece that contains a low-power magnifying lens (4x) is a low-power objective.
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If a friend tosses a leftover apple in a field is it apple pollution or not? Please answer ASAP.
Answer:
it is biodegradable but the apple core does not have the same, the core is equally as dangerous as any other type of litter because it will help a hungry animal find a meal.. if that makes sense
Help! Please don't steal points! I really need help with this
Answer:
Respiratory system - breathing is faster, lungs open up to take in more air
Nervous system - heart rate speeds up, senses become sharper
Muscular system - body moves to a safer space
Circulatory system - stress hormones are transported around the body
Explanation:
Organ systems are groups of organs that work together to perform a certain function in the body. The human body consists of eleven organ systems. Four of them are included in the question you were given.
The respiratory system is the system of organs that allow us to breathe. It includes the airways, lungs, and blood vessels.
The nervous system is the organ system that coordinates our behavior and transmits signals between different parts of our body. It consists of the brain, spinal cord, sensory organs, and all of the nerves that connect these organs with the rest of the body.
The muscular system is the organ system that permits movement of the body, maintains posture, and circulates blood throughout the body. It consists of skeletal, smooth, and cardiac muscles.
The circulatory system is the organ system that carries oxygen, nutrients, and hormones to cells, and removes waste products, like carbon dioxide. It consists of the blood, blood vessels, and heart.
Based on this information, we can conclude what function belongs to which organ system.
CAN SOMEONE PLEASE HELP ME WITH THIS SCIENCE QUESTION I WILL MARK YOU BRAINLIEST THANK YOU
Answer:
C Department of the Interior
Please Rate and mark me as brainliest
helppp meeeeeeee pls!!!!
Answer:the red one
Explanation:
i just took a test on this subject yesterdsy
Help plz!!! I'm struggling with a lot of school work and I need help or I won't be graduating this year
Answer:
the answer is c
Explanation:
it is the most logical answer
Distinguish functions professional organizations may play in the lives of those with horticultural careers
Answer:
It enhance skills and knowledge.
Explanation:
professional organizations play very important role in the lives of those people with horticultural careers because in professional organizations there is continuous learning opportunities for the horticulturists. These organizations also enhance skills and knowledge and to stay up to date on changes occur in their field so we can say that professional organizations are very important for horticultural careers.
what happens when Animals wake up during hibernation ?
Answer:
they immediately begin to search for food
Explanation:
BIOLOGY HELP ASAP PLEASE. THANK YOU AND GOD BLESS
Some types of cancer result from changes to individual genes, whereas others result from chromosome-level changes to the genome. Which of these types of cancer would you be able to detect by karyotype and why?
Answer:
comfirm leukemia, lymphoma, or myeloma
Explanation:
You can identify stable aneuploid cancer cells in the presence of high rates. Many uses karyotype tests to comfirm leukemia, lymphoma, or myeloma.
A child is born to parents that both have hypophosphatemic rickets, a disease that is caused by a sex-linked dominant trait. What is the chance that the child will have the disease if the mother is heterozygous for the trait?
75%
50%
25%
100%
Answer:
75%
Explanation:
Hypophosphatemic rickets is a disorder characterized by hypophosphatemia (low level of phosphate in the blood), defective intestinal absorption of calcium, and rickets (impaired mineralization of cartilaginous growth plates) or osteomalacia (impaired mineralization of the osteoid) unresponsive to vitamin D. It can be inherited or acquired.
When it comes to inheritable hypophosphatemic rickets, the disorder is most often inherited in an X-linked dominant manner. This means that the gene is inherited through the X chromosome and that one dominant allele is enough to cause it.
As the mother is heterozygous for the trait, she has one dominant and one recessive allele (XHXh). The father has one X chromosome, which he inherited from his mother, and as he has the condition, the dominant allele will be present on it (XHY).
This means that, if the child is a girl, she will definitely have the disorder. Girls inherit one X chromosome from each of their parents. Even if she inherited the one with the recessive allele from her mother, she would get the one with the dominant allele from her father.
If the child is a boy, he has a 50% chance to inherit the condition. Boys inherit the Y chromosome from their father and the X chromosome from their mother. As the mother is heterozygous, he can either get the chromosome without the dominant allele or the one with it. This means that there is a 50% chance of inheriting the disorder.
If we say that there are equal chances of this couple having female and male children, when we combine these results, we get a 75% chance of them inheriting hypophosphatemic rickets.
Hair color is a trait that’s controlled by many genes working together. Each gene contributes to this trait only in a small proportion. Which pattern of inheritance is this?
A. codominance
B. Incomplete dominance
C. Multiple Allele
D. Polygenic Inheritance
Answer:
tbh i think its D
Explanation:
i say its D cos why not and i dont have enough brain cells for this
Answer:
It should be D, Polygenic Inheritance.
Explanation:
If you look up the definition of Polygene, it says "A polygene or multiple gene inheritance is a member of a group of non-epistatic genes that interact additively to influence a phenotypic trait." Examples of Polygenic Inheritance are described as skin color, eye color, hair color, body shape, height, and weight. Also, since poly means multiple, it wasn't too hard to assume that "polygene" means multiple genes working together. Hope this helps!
A zebra eats grass and a lion eats the zebra what tropic level is the grass
Grass is at the first trophic level of the trophic system, they are the primary producers.
• The feeding positions of all the organisms in a particular ecosystem is known as the trophic levels.
• The base or the first trophic level of an ecosystem exhibits the higher energy concentration.
• The trophic levels illustrates that what the organisms eat. There are five trophic levels, that is, from simple plants to the ap-ex predators.
• In the first or the lowest level of the trophic system comes the primary producers, that is, the grasses and plants. They can be either aquatic or terrestrial.
Thus, in the given case, grass is the first trophic level of the ecosystem.
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There are giraffes that show an incomplete dominance in neck size. A giraffe with a tall
neck (TT) is crossed with a giraffe with a medium neck (TS). What fraction of giraffes will
also be tall?
25%
O 75%
O 50%
100%
Answer:
50%
Explanation:
(TT) Is fully tall. (TS) Is medium. So it can be assumed that (SS) is short. When forming a cross, you cross TT and TS to generate a phenotypic ratio of 1x1 or a genotypic ratio of 1 TT, 1 TS. Making it exactly split in half in 50/100.
Hope this helps!
in what positions are the sun moon and earth during a full moon
Answer:
Earth is between the Moon and the Sun.
Explanation:
Because the moon has moved in its orbit so that the earth is between the Moon and the Sun.
Chemical energy stored in food molecules is released through
Chemical energy stored in food molecules is released through respiration.
What is cellular respiration?Cellular respiration is a sequence of chemical reactions which usually break down glucose to produce ATP, which can then be used as energy to power a variety of reactions throughout the body.
The cell, as we know, is the structural and functional unit of life, and each cell requires energy to function.
As a result, cellular respiration refers to respiration that occurs at the smallest level of our bodies, namely the cellular level.
Solar energy is harvested as chemical energy in photosynthesis, which converts water and carbon dioxide to glucose.
As a byproduct, oxygen is produced. Oxygen is used in cellular respiration to break down glucose, releasing chemical energy and heat in the process.
Thus, through respiration the chemical energy is released.
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Match the human activity and how it increases the greenhouse affect
Answer:
1. primary cause of human-created carbon emissions = burning fossil fuels
2. destroys natural carbon sinks leading to more carbon dioxide in the air = deforestation
3. emits methane from decomposing matter = waste disposal in landfills
Explanation:
1. "Fossil fuels" are nonrenewable resources that are considered essential for the operation of many factories and industries. Burning them accounts for most of the carbon emissions on Earth, and this leads to "global warming."
2. "Forests" are considered "carbon sinks" because they have a role of absorbing the carbon dioxide in the atmosphere. Cutting down the trees (deforestation) makes forests barren. It then leads to more carbon dioxide in the air.
3. Waste disposals in landfills contribute to the amount of methane that is released into the atmosphere. Methane is considered a potent greenhouse gas that affects people's health.
GIVING BRAINLIEST..
1.Scientists have evidence that the universe is [expanding/shrinking].
2.Objects moving away from Earth appear [blue/red], and objects moving toward Earth appear [blue/red].
3.Light from most other galaxies appears [blue/red], which makes sense if the universe is [collapsing inward/spreading out]
Answer:
(1) expanding
(2) red, blue
(3) red, spreading out
hope it helps you
Where is the genetic material located in the cells?
a) Lysosomes b) Cell Membrane
c) Nucleus d) Golgi apparatus
Answer:
The cell nucleus
Explanation:
Problem #1
Some mice have either a kinked tail or a normal tail. Kinked tails (K) are dominant. Located on
another chromosome is the gene for growth. This gene can either be dominant, causing
normal growth (N). or it can be recessive (n), causing obesity in the mouse. Two mice that are
heterozygous for a kinked tail and heterozygous for normal growth are crossed. What is the
phenotype ratio resulting from this cross?
P
Х
Answer:
9/16 Kinked tail, normal growth
3/16 Kinked tail, obese growth
3/16 normal tail, normal growth
1/16 normal tail, obese growth
Explanation:
Kinked tail (K) is dominant over normal tail (k) and normal growth (N) is dominant over obese growth (n). Two mice that are heterozygous for both traits (KkNn) are crossed:
KkNn x KkNn
offspring:
9/16 K_N_ - Kinked tail, normal growth
3/16 K_nn - Kinked tail, obese growth
3/16 kkN_ - normal tail, normal growth
1/16 kknn - normal tail, obese growth
(See the attached image for the Punnet's square analysis)
1. What theory did these scientists provide evidence for
Answer:
Theory of relativity I believe
How did the shift to an agricultural lifestyle spark innovation in Biotechnology?
Answer:
Biotechnology allows farmers to grow more food on less land using farming practices that are environmentally sustainable. Through biotechnology: Seeds yield more per acre, plants naturally resist specific insect pests and diseases, and farming techniques improve soil conservation.
Explanation:
Answer:
Explanation:
New Platform for Innovation in Food and Agriculture Launches, Invites a new platform to spark a thoughtful dialogue around innovation in food “We look forward to engaging a number of voices in Innovator moving forward.” Biotech NOW is BIO's blog chronicling “innovations transforming our world”
Can epigenetic changes influence an organism its entire life?
Answer:
The methylation of DNA and other epigenetic marks do not alter the genes that they influence at a sequence level but nonetheless alter the expression of these genes. Furthermore these marks can be acquired throughout the lifetime of the individual and, if carried in their gametes, these marks are inheritable.
If all fours plants were watered daily but placed in a closet receiving no sunlight what process would NOT occur
Answer: photosynthesis
Explanation:
If all fours plants were watered daily but placed in a closet receiving no sunlight then photosynthesis would not occur.
What is photosynthesis?Photosynthesis is defined as the process through which plants convert carbon dioxide, water, and sunshine into oxygen and sugar for energy.Photosynthesis is primarily used to convert solar energy into chemical energy, which is then stored for use at a later time. The biological systems on the planet largely receive energy from this method.
Without light, plants will lose their color and deteriorate. Due to inadequate photosynthesis, the shoots exposed to "limited/no" sunlight were yellow/white in hue. The sprouts struggled to make enough chlorophyll to give them a green color since photosynthesis was hindered by the lack of sunlight.
Thus, if all fours plants were watered daily but placed in a closet receiving no sunlight then photosynthesis would not occur.
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CAN SOMEONE PLEASE HELP ME WITH THIS SCIENCE QUESTION I WILL MARK YOU BRAINLIEST THANK YOU
Which statement best describes what happens when plastic items are changed into something new ?
the plastic has been reused
the plastic has been recycled
the plastic has been repurposed
the plastic has been destroyed
Answer:
the plastic has been recycled.
Explanation:
when it is recycled it is changed into a whole different type of product.
________ orbit high above Earth collecting data and images of Earth’s surface and atmosphere.
1. Drowning, suffocation and carbon monoxide poisoning can lead to death because they all prevent
oxygen from reaching our cells. Explain how this lack of oxygen can lead to death; be specific about how
this lack of oxygen can affect cellular metabolic processes.
Answer: Lack of energy
Explanation:
Oxygen is needed in a process known as Respiration where it is used to produce energy from glucose. This energy is what the cell uses to continue whatever functions that it carries out which are needed for the body to survive. If the cells don't get oxygen, they can't make energy and if they can't make energy, they die.
Some cells are more important than others and so will need a constant supply of oxygen. The brain for instance requires 20% of the oxygen used in the body. If the body suffers from a lack of oxygen for whatever reason, brain cells begin to die within about 4 minutes.
The brain is extremely important as it directs the body. If the cells there begin to die, the body deteriorates and the body stops engaging in certain processes due to a lack of direction from the brain. This coupled with the other cells dying around the body will lead to even more deterioration till the body dies.
Function of a nucleus
Answer:
The nucleus controls and regulates the activities of the cell and carries the genes, structures that contain the hereditary information.
Explanation:
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