Answer:
Oxygen transport within the human body occurs through both convection and diffusion. ... Oxygen diffuses from both the alveoli into the pulmonary capillaries and the systemic capillaries into the tissues, according to Fick's laws of diffusion and the random walk of the diffusing particles
Explanation:
Hope this helps
Answer: It binds to a protein called hemoglobin in red blood cells.
Explanation:
Haemoglobin (Hb) is a protein found in the red blood cells that carries oxygen in your body and gives blood its red colour.
What is space junk and why do we need to know about it?
Space junk, or space debris, is any piece of machinery or debris left by humans in space. It can refer to big objects such as dead satellites that have failed or been left in orbit at the end of their mission. It can also refer to smaller things, like bits of debris or paint flecks that have fallen off a rocket.
Answer:
6
Explanation:
Using your understanding of how infectious diseases can be transmitted, explain why schools can have a large number of students absent due to illness at the same time.
Explanation:
its because due to the illness caused by one person it may have affected the others.
which can lead to an increase .
students can be affected by sharing water bottles, hugging,sharing things.
Can lead to the transmission of diseases.Adult stem cells are best described as?
Explanation:
1 Definition. Adult stem cells are undifferentiated cells that reside among differentiated cells in a tissue or organ. They have the ability to renew themselves and differentiate into specialized cell types.
Adult stem cells, also known as tissue-specific stem cells or somatic stem cells, are multipotent cells that replace damaged and dying cells.
What are somatic stem cells?Somatic stem cells, also known as adult stem cells, are found in organs and tissues, have the ability to self-renew and give rise to the differentiated cell types that make up that organ or tissue (multipotency), and play an important role in the maintenance and repair of those organs and tissues. Adult stem cells are sometimes referred to as embryonic stem cells.
The bone marrow, the skin, the intestine, the brain, the blood vessels, the teeth, the reproductive system, and the heart are only some of the organs and systems in the body that include somatic stem cells.
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In the phrase "survival of the fittest," the term "fittest" refers to:
A. The best-adapted organisms
B. The biggest organisms
C. The smartest organisms
D. The fastest organisms
Answer:
A
Explanation:
From what I know this could be wrong, but in the four stages of natural selection, the first step is overproduction, the second step is adaptation, and the third step is competition or survival of the fittest. This means that only the organisms with the best adaptations for their surroundings will survive. COULD BE WRONG SORRY IF IT IS
Which process has the greatest potential for genetic variability?
O
A. cell differentiation
B. interkinesis
o
C. meiosis
D. mitosis
Answer:
C. Meiosis
Explanation:had the same question and finally got the answer
PLEASE HELPPP
from the illustration above classify #1
a: bird
b: fish
c: amphibian
d: insect
e: mollusk
f: mammal
g: reptile
h: none of these
Answer:
#1 is a reptile
Explanation:
I’m pretty sure only reptiles have scales
The classifications of the below-illustrated organisms are as follows:
#1 = Reptile.#2 = Mammal.#3 = Bird.#4 = Amphibian. What are the characteristics of Reptiles?The characteristics of reptiles are as follows:
They perform locomotion through crawling or creeping mode.They are mostly terrestrial animals. Their body is covered by dry and cornified skin. They do not possess external ear openings. Their heart is typically three-chambered, but exceptionally crocodiles have a four-chambered heart.Mammals are mammary glands in order to feed their young ones. Amphibians have the ability to live in both water and terrestrial habitats. They have two pairs of limbs. The Body is divisible into the head and trunk.
Birds are classified into the category of Aves. The presence of feathers is one of the most important characteristics of this type of classification.
Therefore, the classifications of the below-illustrated organisms are mentioned above very briefly.
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In the genetic structure, which component changes when coding for different triplets and amino acids?
A.) sugar
B.) phosphate group
C.) nitrogen base
D.) all three above will change in creating different triplets
Anaerobic respiration released less energy than aerobic respiration
True
False
Answer:
True
Explanation:
Anaerobic respiration is done when your doing a physical activity.
(GIVING BRAINLIEST!!)
How does condensation occur?
A) Water vapor rises from Earth's surface into the sky.
B) Water vapor cools and forms water droplets in clouds.
C) Water droplets fall to the ground from the sky.
D) Water runs across Earth's surface.
Explain why
Answer:
B
Explanation:
Water vapor cools and forms water droplets in clouds.
Answer:
B
Explanation:
Water vapor cools and forms water droplets in clouds.
gas pressure in a closed system is caused by
Answer:
"C"
Explanation:
Gas pressure in a closed system is caused by resultant force of all combines collisions. The correct option among all the options that are given in the question is the third option or option "C". The other options can easily be ignored. I hope the answer comes to your help.
Answer:
resultant force of all combines collisions
Explanation:
Please answer the question correctly
hi, the answer is b, line segment GH
hope this helps!
Directions: Choose the best word to fill in the blank in order to make this sentence accurate.
A ___________ is a community of biotic factors in conjunction with abiotic factors interacting as a system.
Biome
Biosphere
Niche
Ecosystem
Answer: Ecosystem
Explanation: Definition of Ecosystem: a biological community of interacting organisms and their physical environment :)
Answer:
Ecosystem
Explanation:
ecosystem is a community of living organisms (plants, animals and microbes) in conjunction with the nonliving components of their environment (things like air, water and mineral soil), interacting as a system.
Please help
Predict how the inability of a species to adapt within a changing environment may contribute to the extinction of that species.
Answer:
B
Explanation:
Which leaf would be in a cold and snowy climate?
Venus Fly Trap
Cactus
Sunflower
Wintergreen boxwood
Answer Wintergreen Boxwood
Explanation:
These are from cold snowy climates
im not sure but I have Wintergreen boxwood in my backyard and its snows all the time and its still very much alive so ye
sorry if i got this one wrong (i do know cactus, and sunflower usually need lots of heat to survive so if that helps)
(GIVING BRAINLIEST!!)
What is formed during the condensation part of the water cycle?
A) Water vapor and steam
B) Water droplets and clouds
C) Rain and clouds
D) Sleet and rain
Explain why.
Answer:
Its B
Explanation:
This process is called condensation. These water droplets cling together and form clouds. When the droplets become heavy enough, they fall to the ground as precipitation.
Answer:it's B Water droplets and clouds
Explanation: I had this on my test hope it helps!
1 point
The age of the Atlantic Ocean floor is
as it moves away from the ridge.
Answer:
it is 180 million years old
Long ago, the tree of life was seen as having five branches.
True or False?
Answer:
false, hopefully iss right
How does the structure of DNA allow DNA to be copied without mistakes? Your answer
should include: hydrogen bonds, complementary strands, and semi-conservative replication
I will give brainliest to whoever answers best !! Pls
Answer:
DNA replication occurs through the help of several enzymes. These enzymes "unzip" DNA molecules by breaking the hydrogen bonds that hold the two strands together.
Each strand then serves as a template for a new complementary strand to be created. Complementary bases attach to one another (A-T and C-G).The primary enzyme involved in this is DNA polymerase which joins nucleotides to synthesize the new complementary strand. DNA polymerase also proofreads each new DNA strand to make sure that there are no errors.
Explanation:
I think that's how I got it. Am sorry its long.
are seals and monkeys related?
Answer:
No lol
Explanation:
A black hybrid rabbit is crossed with a white purebred rabbit.
What is the probability of an offspring being black?
A. 25%
B. 50%
C. 75%
Answer
A. 25%
Explanation:
This is because the black hybrid would be 50% one breed and 50% another breed. Then the white purebred is 100% one specific breed. So by mating, all of those breeds that the parents have all reduce by 1/2 for the offspring.
what will you do if you find out that your house is located near an active fault?
Answer:
b
Explanation:
Which of the following word means “able to be touched and seen”?
A. Physical
B. Feeling
C. Object
D. Visible
Answer:
A
Explanation:
NEED HELP ASAP⠀⠀⠀⠀⠀⠀⠀⠀⠀
Answer:
Explanation:
Collagen is one of the main reasons why scars heal when the tissues are damaged.
I never took this class but that is some left over knowledge I have. I hope this helped you
what state of matter is the neutral chlorine-36 isotope
Answer: Chlorine-36 (^36Cl) is an isotope of chlorine.
Explanation: Chlorine has two stable isotopes and one naturally occurring radioactive isotope, the cosmogenic isotope ^36Cl.
which describe a liquid
(A) changes shape and volume
(B) changing shape and fixed volume
(C) fixed shape and volume
(D) fixed shape and changing volume
Answer:
b: changing shape and fixed volume
Explanation:
What is the ingroup in a cladogram?
Answer:
•Ingroup in biology is a group of taxa that is considered in determining evolutionary relationships. The taxa in an ingroup are closely related. In fact, they are sister groups, and they share a common ancestor. Therefore, taxa in an ingroup are descendants that split from the same node in the cladogram.
Explanation:
i hope it's help
How does the sperm come in contact with frog eggs?
The sperm is carried through a reproductive system
The sperm is placed on top of the eggs
The sperm is carried to eggs via water
Explanation:
the sperm is placed on top of the frog eggs
The sperm come in contact with the frog eggs as they are placed on top of the egg cells. Thus, the correct option is B.
What is fertilization in frogs?During the spring season or rainy season, frogs and toads move to ponds and slow flowing stream regions. When the male (sperm) and female (egg) come together in water medium, the female frog lays hundreds of eggs in the water. Frog’s eggs are not covered by a shell and it is comparatively very delicate in nature. A layer of the jelly holds the eggs together in place and provides protection to the egg cells. As the eggs are laid in the water, the male frog deposits sperms over them. Each sperm swims randomly in the water body with the help of the long tails. The sperms (male gamete) come in contact with the eggs (female gamete). This results in fertilization of the gametes.
The sperm come in contact with the frog eggs as the sperm is placed on top of the eggs.
Therefore, the correct option is B.
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17 Refer to the illustration above. Structure 4 is
a. the cell membrane.
c. mitochondrion.
b. a Golgi apparatus,
d. the nucleus.
Quickly please
Answer:
the answer to the illustration above is see mitochondrian
Answer:
b.) the nucleus
Explanation:
What is free nitrogen? Nitrogen gas is called "free" nitrogen, meaning it is not combined with other kinds of atoms. Most organisms can use nitrogen only once it has been "fixed," or combined with other elements to form nitrogen-containing compounds.
Answer:
About 78% of the Earth's atmosphere is made up of "free" nitrogen (N2), produced by biological and chemical processes within the biosphere and not combined with other elements. ... One family of nitrogen compounds produced by nitrogen - fixing bacteria are called nitrates.
Explanation:
Hope this helps
Free nitrogen refers to nitrogen gas (N₂) that exists in the Earth's atmosphere as a diatomic molecule consisting of two nitrogen atoms bonded together. It is called "free" nitrogen because it is not chemically combined with other elements or atoms.
Nitrogen gas makes up approximately 78% of the Earth's atmosphere, making it the most abundant gas present. Despite its abundance, most organisms cannot directly utilize nitrogen gas in this form. This is because the bond between the two nitrogen atoms is very strong, requiring a significant amount of energy to break.
Therefore, free nitrogen refers to nitrogen gas (N₂) present in the atmosphere that is not chemically combined with other elements. It needs to undergo nitrogen fixation to be converted into usable forms before most organisms can utilize it.
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how does the data that Scientists collect get used with climate models? scientists collect data then developed and use models to maken predictions about future climate conditions.
Answer:
To make these predictions, meteorologists use weather data and forecast models to determine current and future atmospheric conditions. Because weather takes place hour by hour, forecast models use current atmospheric and oceanic conditions to predict future weather.