What does a negative ion mean?
Answer:
there are more electrons than protons
Explanation:
Answer:
Negative ions are molecules floating in the air or atmosphere that have been charged with electricity. Negative ions exist in nature in tons of places, including: ultraviolet (UV) rays from the sun. discharges of electricity in the air after a thunderclap or lightning strike.
Explanation:
Ions are invisible charged particles in the air – either molecules or atoms, which bear an electric charge.
Hope this helps!
What kind of light does the human eye can see?
Can u give me a simple answer please I need an answer by 10 if u don't answer until 10 Am u will not get brainliest?
A mouse with light-fur is living in an environment with a light sandy background. Due
to a volcanic eruption, the light background darkens as the lava cools. Which of the
following will happen to the light-furred mouse?
A) It will undergo a mutation and become light-furred
B) It will adapt to its environment
C) Its fitness will decrease
D) It will reproduce more quickly
5. These are plants that grow on tree trunks. They do not harm the trees that they
are attached to. Which plants are described above?
A. autotrophs
B. phototrophs
C. epiphytes
D. parasite
what trait determines whether two animals belong to the same species
Answer:
Answer: Their ability to breed with one another
Explanation:
Which is part of Charles Darwin's reasoning for evolution by natural
selection? *
A. All individuals in a population have an equal chance of surviving.
B. Certain hereditary traits give some individuals better chances to survive and
reproduce than others.
C. Environmental changes cause an individual to develop traits that help it survive and
reproduce
D. Most animal populations have more food available than is necessary to support the
population
Answer:
it will option C this is correct answer
Answer: the answer is D
Explanation:
IS WORK DONE EVERY TIME A FORCE IS APPLIED TO AN OBJECT? EXPLAIN
Which statement correctly describes the role of hormones in gene expression?
A.Hormones are internal environmental factors that can influence the expression of genes.
B.Hormones are external environmental factors that can influence the expression of genes.
C.Hormones are external environmental factors that cause genes to express in an unregulated process.
D. Hormones are internal environmental factors that cause genes to express in an unregulated process.
Answer:
A
Explanation:
Im guessing
list three reasons why phytoplankton cannot survive at a hydrothermal vent
Answer:
1. phytoplankton and other organisms harness sunlight , to create photosynthesis , near hydrothermal vent there is no sunlight
2. Phytoplankton need nutrients to grow, so when there's none at the surface they can't thrive, and there's no surface in hydrothermal vent
3. The ocean's increasing acidity will most likely kill them.
Hope that helps
Explanation:
Algae called phytoplankton need sunshine to perform photosynthesis.Additionally, they need particular minerals like nitrates, phosphates, and silicates, which come from the upwelling of nutrient-rich deep waters.The varying of the seasons has an impact on both of these variables.
Why are phytoplankton cells found close to the ocean's surface?
Similar to plants on land, phytoplankton use photosynthesis to absorb energy from the sun's rays, turn it into fuel, and make oxygen from carbon dioxide.Phytoplankton are found close to the water's surface since they require the sun's energy. Similar to terrestrial plants, phytoplankton uses photosynthesis to convert solar energy into chemical energy by using chlorophyll to absorb light.They exhale oxygen while consuming carbon dioxide. Photosynthesis, the process of generating energy from chlorophyll and sunlight, is how phytoplankton obtains its energy.Phytoplankton absorb carbon dioxide and expel oxygen, just like other plants. The winter phytoplankton blooms are caused by the northeast monsoon's upwelling of subsurface water rich in nutrients to the surface layer. The phytoplankton is then moved northward by the surface flow, which displaces the center of the bloom from the upwelling centerFor photosynthesis, phytoplankton needs sunshine in addition to nutrients and a suitable environment.Only the topmost ocean layers, known as the epipelagic or euphotic zone, allow light to pass through.Few phytoplankton below this zone receive the requisite sunlight for photosynthesis.To learn more about phytoplankton refer
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What might happen to the numbers of prey if a population of predators grows? (site 2)
Answer:
One: All of the prey or other animals will get smaller in size and make a disturbance in the balance. Two: Whatever the prey eats will be growing more / there will be more of it.
Explanation: Hope this Helps dude
In which layer of the Earth does the motion of the convection currents drive plate movement?
mantle
outer core
inner core
lithosphere
Seven cups of instant coffee contain 315 mg of caffeine.
How much caffeine is there in one cup of instant coffee?
Answer:
45 mg of caffeine in one cup of instant coffee.
What are two reasons why the cells would need to divide (click all that apply).
Answer:
Circle Answers
Explanation:
Circle Answer
1, 2, and 4
Can a color blind female have a son that has normal vision? Color blindness is cause by a sex linked recessive allele. * Use N= normal vision and n= color blind
if someone sitting at the other end of a restaurant smokes a cigarette, you may still breathe some in some of the smoke. The movement of smoke through the air of the restaurant is an example of what type of transport?
a. osmosis
b. diffusion
c. facilitated diffusion
d. active transport
Answer:
C.facilitated diffusion
Explanation:
Because it have some chemicals did you breathe from the person who using cigarettes.
You may still breathe some of the smoke in because The movement of smoke through air is an example of ; (b) diffusion
Diffusion is the movement of airborne particles/substances across ( the restaurant air ) from a region of with high concentration to an area experiencing a lower concentration.
The diffusion of the smoke from the cigarette with some chemicals contained in it from the smoker to the region where you breathe in some of the smoke. is an example of diffusion
Hence we can conclude that the movement of smoke through air is an example of diffusion.
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Which type of cells does a balloon best model.
A. Bone cell, because it is strong and stiff to provide support.
B. Nerve cells, because it sends electrical signals.
C. Guard cells, because it covers surfaces in a body.
Help pleasee! It's for my final!
The ability to develop and use tools was first seen in early hominids. Which of the following characteristics was the main factor that contributed to this ability?
small jaw
bipedalism
compact skull
language skills
Answer:
A is incorrect, the correct answer is B bipedalism
Explanation:
The ability to develop and use tools was first seen in early hominids. The main factor that contributed to this ability is bipedalism. Therefore, option B is correct.
What is bipedalism ?When an organism uses its two back limbs or legs to travel on land, this is known as bipedalism. The term "biped" refers to an organism or device that typically travels on two feet. Bipedal motion includes hopping, running, and walking.
Hominids were able to produce and utilize tools more effectively, reach for fruit in trees, and use their hands for social interaction and display when they became bipedal.
The only bipedal animals are humans, birds, and (rarely) apes. Bipedal runners include people, some birds, many lizards, and (at their fastest speeds) cockroaches. Many birds, including jerboas and crows, as well as some rodents and kangaroos, hop while walking on two legs.
Thus, option B is correct.
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what is the difference between phototropism , gravitropism , hydrotropism , and thigmotropism
Answer:
https://brainly.in/question/6314438
Geo- means earth, tropism is movement. Geotropism is what makes roots grow toward gravity and shoots grow away from gravity, so that plants are oriented correctly in the ground.
The response of plants or animals towards light is called phototropism.
When the response is towards the light, it is called positive phototropism.
And when the response is away from the source of light, it is called negative phototropism.
For example, we see plants bending towards sunlight. It is actually their response towards light and is called positive phototropism.
Thigmotropism is the directional response of a plant organ to touch or physical contact with a solid object. This directional response is generally caused by the induction of some pattern of differential growth. This phenomenon is clearly illustrated by the climbing tendrils of some plants, such as the sweet pea
How many arms does a squid have?
Answer:
Ten arms! Hope this helps!
Answer: it has 8 arms but if you count the two tentacles it would be 10
what happens during NREM sleep
HELP ITS DUE RIGHT NOW ( BIOLOGY QUESTION !! )
Answer:
f:cellular reproduction
Answer:
The answer is F
Explanation:
Cellular reproduction made the knew bark.
Can SOMEONE HELP ME PLEASE ITS URGENT !!!
Answer:
c
Explanation:
Answer: yes I agree with c
Explanation:
pls help!!!!! biology
make a list of all the non photosynthetic parts of a plant that need a supply of sucrose and amino acids
Answer:
The non-photosynthetic parts of the plant include any parts that lack chlorophyll, such as the roots, woody stems, fruits, and seeds. These parts of the plant do not contain chlorophyll, and thus are unable to capture light energy from the Sun. They rely on photosynthetic parts of the plant, such as the leaves and parts of the stem to do photosynthesis. In vascular plants, the nutrients produced during photosynthesis are transported to non-photosynthetic parts of the plant through the phloem. Phloem is a vascular tissue designed to transport glucose and other nutrients produced during photosynthesis to parts of the plant that are non-photosynthetic, such as the roots.
Explanation:
brainliest plzzz
Explain how the kidney is adapted for efficient reabsorption.
Please help.
PLEASE PLEASE HELP I WILL GIVE BRAINALIST
Answer:
A and B
Explanation:
The process by which a cell copies its DNA before it divides is
1.
mutation
2.
diffusion
3.
replication
4.
respiration
Answer:
Replication
Explanation:
Replication is the process of making copies of dna
It's obviously not respiration or diffusion, they are both completely different processes that have nothing to do with cell division
Mutation is also the wrong answer because it's a process that results a new/different type of dna
Which of the following changes will affect the speed of a wave through a medium?
A change in the frequency of the wave
A change in the amplitude of the wave
A change in the material through which the wave travels
The speed of a wave always remain the same regardless of the type
of medium fr
Answer:
A change in the material through which the wave travels
Which of the following best describes the function of the human nervous system?
A.
The nervous system gathers, interprets, and responds to information about the body's internal and external environment.
B.
The nervous system transports oxygen and nutrients to the cells of the human body through a system of nerve cells.
C.
The nervous system breaks down large food molecules into smaller nutrients so that they can be transported around the body.
D.
The nervous system removes waste products from the human body through the excretion of sweat and urine.
Answer:
A.the nervous system gathers,interpret and respond to information about the body's internal and external environment
Explanation:
the nervous system is a highly complex part of an animal that coordinates its actions and sensory information by transmitting signals to and from different parts of its body
