Answer: They can be affected by human activity.
Explanation:
Answer:
a
Explanation:
i got it right
Answer the following questions:
⦁ What is the purpose/function of the Respiratory System?
⦁ What is the purpose of the tiny hairs called cilia in your nose?
⦁ What are the purposes of the pharynx?
⦁ What is the purpose of the epiglottis?
⦁ How is the respiratory system linked to the cardiovascular system
Answer:
1. The respiratory system allows us to breathe . They bring oxygen into our body and remove carbon dioxide from the body .
2. Tiny hairs called cilia protect the nasal passageways and other parts of the respiratory tract, filtering out dust and other particles that enter the nose through the breathed air.
3. The throat (pharynx and larynx) is a ring-like muscular tube that acts as the passageway for air, food and liquid. It is located behind the nose and mouth and connects the mouth (oral cavity) and nose to the breathing passages (trachea [windpipe] and lungs) and the esophagus (eating tube).
4. The main function of the epiglottis is to seal off the windpipe during eating, so that food is not accidentally inhaled.
5. The heart pumps blood to the lungs for oxygenation and the lungs then give the heart back oxygen rich blood to be transmitted to the whole body
Explanation:
plss mark brainliest
HELP Which of the following is a correctly described example of negative feedback?
A thermostat controls the temperature at random times of the day by producing heat every 2 hours regardless of how warm the room is.
B thermostat turns on and off throughout the day to keep the temperature approximately the same or at a set point.
C thermostat steadily increases the temperature throughout the day.
Answer:
B
Explanation:
The process of obtaining food by __________________ is called phagocytosis.
The purpose of transcription is to create
A. a sequence of RNA bases that complements a sequence of DNA bases.
B. a sequence of DNA bases that duplicates a sequence of RNA bases.
С. a sequence of RNA bases that breaks down a sequence of DNA bases.
D. a sequence of DNA bases that deletes a sequence of RNA bases.
Answer:
B. a sequence of DNA bases that duplicates a sequence of RNA bases.
Explanation:
Transcription is the first step in gene expression. It involves copying a gene's DNA sequence to make an RNA molecule.
Which of the following is something almost everyone can do to reduce his or
her carbon footprint?
O A. Take warmer showers. .
B. Turn off the lights when leaving the room.
O C. Cook with the oven more often.
D. Use the fireplace when a house is cold.
SUBMIT
Help me please??????????
Answer:
very similar DNA sequence
Explanation:
Naa is reading an article about objects in the solar system. She finds out the Ganymede, ne
of Jupiter's moons, is bigger than the planet Mercury. Which statement explains why
Ganymede is NOT classified as a planet?
(0.5 Points)
It orbits Jupiter and not the Sun.
It is not as close to the Sun as Mercury.
It is not shaped like the rest of the planets.
It is held in its orvbit by gravity.
Answer:
I think number 2
If the blockage is removed from the blood vessel, what will happen to blood flow after removal?
Answer:
the blood would stop pumping, because the blockage allows the blood to move one way, but when there is not blockage, the blood would enter from both ways making it impossible to regulate
What process can change all three rock types in a new metamorphic rock?
Answer:
The three main rock types are igneous, metamorphic, and sedimentary. The three processes that change one rock to another are crystallization, metamorphism, and erosion and sedimentation. Any rock can transform into any other rock by passing through one or more of these processes. This creates the rock cycle.
Explanation:
1. What causes the inside of the cell to be more negative compared to the outside of the cell? Resting Potential, Action Potential
Answer:
Resting potential
Explanation:
This is because , the resting potential is negative in side of the cell because it has more negative charge inside than outside due to accumulation of alot of sodium and potassium ions. when an axon is at rest in the cell, the anions produce negative charge, the sodium pumps eject sodium out of the cell and potassium is injected in, and the sodium gates and potassium gates are all closed.
5. The theory of common descent states that all modern organisms
*
A. Can change in response to environmental change
B. Are descended from a single ancestral species
C. Can be arranged in a linear order from "Least Evolved" to “Most Evolved”
D. Have not changed over time
Answer:
B
Explanation:
All living beings are in fact descendants of a unique ancestor commonly referred to as the last universal common ancestor (LUCA) of all life on Earth, according to modern evolutionary biology. Common descent is an effect of speciation, in which multiple species derive from a single ancestral population.
pls help me with 5 and 6 thanks and read the story
Answer:
Number 5 is D I do believe and number 6 is A i think
Explanation:
Hope you get it right and have a great day!
Which describes organisms going into deep sleep for the winter?
A. Birds migrating
B. Animals hibernating
C. Trees losing their leaves
D. Insects during metamorphosis
Answer:
Animals hibernating is the answer
Explanation:
Hiberntion is when animals sleep for months in the cold winter
When animals hibernate, it is usually in the winter. They store food with them for when they wake up.
An example is squirrels which store acorns near them when they go to hibernate
Birds migrating is usually to lay eggs
Trees losing leaves is usually so that they can store their precious nutrients like glucose
Insects during metamorphosis is when they change form, eg from a caterpillar to a butterfly
What does "dismiss" mean in these sentence
Answer:
to send away
Explanation:
hope this helps
Answer:
to send away
Explanation:
i got that correct.
Why can mass bleaching wipe out the whole ecosystem
*10 points* biology ill give you brainliest if right
Answer: B.
Explanation:
Arrows point to penguin, fish, krill, and other birds.
A single nerve is an example of which level of organization in a body? plz help
Answer:
organ system
Explanation:
I hope this is right please tell me if im wrong ;)
Change in color and body structure help the organisms to adapt according to their environment explain with an example
Complete the sentence below by selecting the correct words from the drop-down menus.
Factors that affect natural selection include VARIATIONS or SIMILARITIES, UNDERPOPULATION or OVERPOPULATION, and ADAPTION or EXTINCTION.
Answer:
variation, overpopulation, and adaptation
Explanation:
those are the answers for edge
Answer:
Complete the sentence below by selecting the correct words from the drop-down menus.
Factors that affect natural selection include
✔ variation
,
✔ overpopulation
, and
✔ adaptation
.
Explanation:
What is deposition?
1.The process by which water ice, wind or gravity moves fragments of rock and soil.
2.The process by which water, ice, wind or gravity deposit rock sediments and soil in a new place.
3.The breaking down of Earth's crust into smaller and smaller pieces.
What is the largest object known to man and why?
Answer:
1234567890
Explanation:
because I said so 12345678901234567890
Which greenhouse gas has contributed the least to the growth in the annual greenhouse gas index?
a. CFCs
b. Methane
c.Nitrous Oxide
d. Carbon dioxide
Answer:
the answer is methane
Explanation:
I took the test
This illustration shows the flexion of the elbow joint. Identify two body systems that play a role in this action, and describe how they work together to flex the elbow.
The two body systems that play a role in the action is
Muscular systemSkeletal system Flexion of the elbow jointGenerally, the flexion of the elbow joint is anchored by two man bodily systems these are
The muscular system(muscular system is dedicated to the movement of the human body) The skeletal system( responsible to hold the proper-structure of the body) .Therefore,two body systems that play a role in the action is
Muscular system Skeletal systemFor more information on Nerves
https://brainly.com/question/2622341
The genetic code of a strand of DNA is determined by a specific sequence of
A. sugar molecules.
B. nucleotides.
C. covalent bonds.
D. ATP molecules.
Answer:
B
Explanation:
the answer is nucleotides
State one way the immune system reacts when a virus enters the body.
Guys pls help me!!!
Answer:
The immune system recognizes and destroys, or tries to destroy, substances that contain antigens. Your body's cells have proteins that are antigens. These include a group of antigens called HLA antigens
How does wind affect the amount of rain?
Answer:
please give me brainlist and follow
Explanation:
The rainfall loss rate increases as the wind speed increases and/or the rainfall intensity decreases.
During meiosis, which of the following allows for variations in alleles in the gametes
formed?
A) homologous chromosomes stay together
B)chromosome crossover
C)daughter cells identical to parent cells
D)Genetic drift
Answer:
D. I'm pretty sure at least
Yo plz me plz no links
Changes in _____ result in the formation of metamorphic rocks.
a. Weathering
b. Sedimentation
c. BothAandB
d. Temperature and Pressure
Answer:
During metamorphism the mineral content and texture of the protolith are changed due to changes in the physical and chemical environment of the rock. Metamorphism can be caused by burial, tectonic stress, heating by magma, or alteration by fluids.
Explanation:
Answer:
thanks
have a good day :)
Explanation:
Why should organisms that produce more offspring have a more likely chance of survival?
Answer:Organisms must struggle to get what they need to survive, competing against other organisms that want the same things they do.
Explanation:
Answer:
I will try to put this in the simplest terms I can:
If you think about it, organisms actually do not live that long. There are multiple cause and effect reasons, such as low resources, no food, extinction, and so on. Thus, organisms must produce offspring to keep their "family line" consistent.
(2 pts) Describe the process in which an ecosystem moves from a pioneer species to a climax community.
Answer:
As an ecological community develops, it goes through a series of stages called ecological succession. The enduring community, in which specific and environmental changes are minimized, is called the climax community.
Explanation:
Succession is a process that generally begins after a significant alteration or extinction of an existing community. During succession, a community begins from a point where pioneer species colonize a new area. Pioneer species actively work to provide nutrients to soils and thus allow life to begin to form in them.During this time, there is widespread growth of these fast-growing species. If this new development is in an area that has never been settled before, this is called primary succession. If colonization occurs where an area has been so severely disturbed that the original community no longer exists, this is called secondary succession. Primary succession begins with the establishment of pioneer species such as lichens and mosses. These change the physico-chemical characteristics of the substrate. Later, small plants such as grasses, shrubs and then trees arrive, until culminating in a climax community dominated by certain species. The equilibrium that characterizes the climax community can be altered by climatic, ecological and evolutionary factors.