Answer:
Explanation:
Arteries are blood vessels responsible for carrying oxygen-rich blood away from the heart to the body. Veins are blood vessels that carry blood low in oxygen from the body back to the heart for reoxygenation.
Answer:
Arteries are thicker and stretchier to be able to handle the higher pressure of blood moving through them. Veins are thinner and less stretchy. This structure helps veins move higher amounts of blood over a longer time than arteries.
Arteries are blood vessels responsible for carrying oxygen-rich blood away from the heart to the body. Veins are blood vessels that carry blood low in oxygen from the body back to the heart for reoxygenation.
The role of an enzyme in a chemical reaction is to change which of the following
The function of an enzyme is to speed up chemical reactions. They do this by lowering the activation energy, which is the minimum energy that must be available for a chemical reaction to occur. ... Thus the correct answer is an enzyme changes "the activation energy of the reaction."
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Smaug is angered early in the chapter when
Question 1 options:
the dwarves enter his tunnel
he discovers some treasure missing
he is woken from his sleep
Answer:
he discovers some treasure missing
Explanation:
in dna replication, the new strand of dna that is synthesized in one continuous piece .
In DNA replication, the new strand of dna that is synthesized in one continuous piece is called the leading strand
during which phase of mitosis does the nuclear envelope reform and chromosomes decondense?
Answer:
telophase as mitosis ends
Within a plant leaf, most photosynthesis occurs in cells called ______ cells, which are often interspersed with air spaces to maximize gas exchange.
Answer:
The spongy mesophyll is the kind of cell described.
Explanation:
"Most of the interior of the leaf between the upper and lower layers of epidermis is a parenchyma(ground tissue) or chlorenchyma tissue called the mesophyll (Greek for "middle leaf"). This assimilation tissue is the primary location of photosynthesis in the plant."
The main layers of the leaf are the cuticle, which is the "skin," the palisade mesophyll (the second topmost layer of cells), the spongy mesophyll, which is lower, and the lower cuticle. The spongy mesophyll is so called because it consists of leaf cells interspersed with air, which maximises their access to oxygen.
what structure in the eye creates a visual blind spot?
What adaptations allowed vascular plants to thrive in terrestrial environments that cannot be colonized by bryophytes
Answer:
Stomata, tracheids, a waxy cuticle
Explanation:
The adaptations that allowed vascular plants to thrive in terrestrial environments that cannot be colonized by bryophytes is the presence of stomata, tracheids and a waxy cuticle. Therefore, the correct option is D.
What are the adaptations of vascular plants?Vascular plants have several adaptations that allow them to thrive in terrestrial environments that bryophytes, such as mosses and liverworts, cannot colonize. These adaptations include stomata, tracheids, and a waxy cuticle.
Stomata are small pores on the surface of leaves that allow for gas exchange, which is essential for photosynthesis. Tracheids are specialized cells that make up the xylem, a tissue that transports water and nutrients throughout the plant. A waxy cuticle is a layer of waterproof material that covers the surface of leaves and stems, preventing excessive water loss and protecting the plant from damage.Together, these adaptations allow vascular plants to thrive in a wide range of terrestrial environments, from arid deserts to humid rainforests. Therefore, the correct option is D.
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The question is incomplete, but most probably the complete question is,
What adaptations allowed vascular plants to thrive in terrestrial environments that cannot be colonized by bryophytes:
A. stomata,
B. tracheids,
C. a waxy cuticle
D. All of the above.
The pancreas, which releases hormones to control blood sugar levels and also enzymes to aid in digestion, is known as a(n) _____ gland.
Answer:endocrine gland
Explanation: these are duct less glands
Can someone please help me
Which relationship is the arrow pointing to in the
cladogram?
the common ancestor for X and Z
the common ancestor for X and Y
the common ancestor for X, Y, and Z
O the common ancestor for Y and Z
Answer:
X and Y
Explanation:
What does weight measure?
A. the force of gravity
B. an object's mass
C. an object's velocity
D.an object's density
Answer:
the Force of gravity
Explanation:
im not fully sure but i personally think it would make sense
A
For example, your mass is the same on different planets but your weight would be different because there may be more or less gravitational pull
I hope this helped :)
An ecosystem consists of
O energy.
O the soil, water, and weather.
O a community of organisms.
o all of these are components of an ecosystem.
Answer:
all of these are components
Which term refers to the diamond-shaped area between the thighs that is bordered by the pubic symphysis, the coccyx, and the ischial tuberosities
Answer:
The diamond-shaped region of a female's external genitalia found between the anterior ends of the labial folds, the anus posteriorly, and the ischial tuberosities laterally is called the perineum
12. When you rub the skin of a shark from head to tail, it feels very smooth, but when you rub it
towards the head, it is rough like sandpaper. This is because the scales that make up its skin
point towards the tail to reduce friction. This would be an adaptation for
a. Feeding & Digestion
b. Locomotion
C. Buoyancy Regulation
d. Circulation & Gas Exchange
Answer:
b. Locomotion
Explanation:
Reduction of friction helps faster movement.
The lower the friction, the faster the shark can move.
The zipper-like complex that forms in meiosis occurs during __________ and is called the __________.
Cancer is a disease that involves uncontrolled cell division caused by a genetic mutation. It can occur in almost any region in the body. So, cancer is essentially uncontrolled
of
.
Answer:
Mitosis of specialized cells
Explanation:
Answer:
Mitosis of specialized cells
Explanation:
circular dna not part of a bacterial genome is called a __.
Answer:
a plasmid
Explanation:
I think it's called a plasmid but I'm not sure. hope it helps
Circular dna not part of a bacterial genome is called a plasmid.
What is plasmid?
A plasmid is a small piece of extrachromosomal DNA that is contained within a cell. It is distinct from the DNA of the chromosomes and has the ability to multiply without help from the chromosomes. Plasmids are most frequently found in bacteria, where they take the form of small, circular, double-stranded DNA molecules. However, archaea and eukaryotic cells can also occasionally contain plasmids.
Plasmids are naturally found in the cells of bacteria, and they can also be found in the cells of some eukaryotic organisms. Plasmids are often responsible for conferring genetic benefits on bacteria, such as resistance to antibiotics, because the genes they carry.
Therefore,circular dna not part of a bacterial genome is called a plasmid.
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In experiments where Beadle and Tatum were able to deduce the steps in a biochemical pathway, they concluded that a single gene controlled the synthesis of a ______ ______.
Explanation:
Beadle and Tatum experimented on Neurospora, a type of bread mold, and they concluded that mutations to genes affected the enzymes of organisms, a result that biologists later generalized to proteins, not just enzymes.
Which of these are freshwater ecosystems? (select all that apply)
rivers and streams
lakes and ponds
coral reefs
ocean
Answer:
ocean, lakes and ponds, and rivers and streams
Answer:
lakes and ponds
rivers and streams
Explanation:
coral reefs and the ocean are salt water ecosystems
The carrier(s) for high energy electrons during glycolysis is/are _____.
A. FADH2, ADP, NADH, & NADPH.
B. only NADH.
C. FADH2, ADP, & NADH.
The answer is C! Hope this helped, and good luck!
What information could a scientist use to identify the cell shown below?
A- The cell contains a cell membrane, therefore, it must be a plant cell.
B- The cell contains a nucleus, therefore, it must be a plant cell.
C- The cell only has a cell membrane, therefore, it must be an animal cell
D- The cell contains mitochondria, therefore, it must be a prokaryotic cell.
Answer:
D
Explanation:
HELP FAST ! People donate bone marrow so that those in need can produce:
O bones and fat
O fat and muscles
O blood and fat
O bones
Answer:
blood and fat
Explanation:
if it's for the Connexus test, I just did it and the correct answer is blood and fat.
Through the bloodstream of the patient, these given cells travel to the bones. The new blood-forming cells will be created here using the donor cells. Thus, option C is correct.
What is bone morrow donation?The patient does not experience a lot of pain during the treatment. After the anesthetic goes off, the donor can feel pain. Painkillers can be required for the upcoming days.
Collagen, which is rich in bone marrow, helps to maintain and strengthen the skin and bones. The donor is infused into the patient's bloodstream during a transplant.
It is also high in glucosamine, a substance that prevents osteoarthritis, eases joint pain, and lowers joint inflammation.
Therefore, people donate bone marrow so that those in need can produce blood and fat.
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A blood stain that impacts a surface at a low angle will have a ________ tail than one that impacts at a higher angle.
What are the 5 functions of the cell membrane?
Answer:
no idea
Explanation:
I hope he having a great day tho
Answer:
Terms in this set (5)
1):-protects the cell by acting as a barrier.
2):-regulates the transport of substances in and out of the cell.
3);-receives chemical messengers from other cell.
4):-acts as a receptor.
5):-cell mobility, secretions, and absorptions of substances.
HELP PLEASE ILL GIVE YOU BRAINLEST
A skydiver jumps out of an airplane at 10,000 feet above ground (Position A). Then continues falling until he opens his parachutes and lands safely on the ground.
Question:
A. Given the positions above (Position A and Position B), at which position does the skydiver have the higher potential energy? Explain. (1 point)
B. Given the position above (Position A and Position B), at which position does the skydiver have the higher kinetic energy? Explain. (1 point)
Answer:
Question:
A. Given the positions above (Position A and Position B), at which position does the skydiver have the higher potential energy? Position A, potential energy is stored energy that depends upon the relative position of various parts of a system.
Given the position above (Position A and Position B), at which position does the skydiver have the higher kinetic energy? Position B, Kinetic energy is a form of energy that an object or a particle has by reason of its motion.
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3. A food contains five grams of carbohydrates. How many calories does that food get from carbohydrates?
A 45 calories
B 5 calories
C 20 calories
D 4 calories
Answer:
The answer is C.
Explanation:
carbohydrate = 5 grams
carbohydrates provide 4 calories per gram.
4 * 5 = 20
20 calories
Describe the function of sensory neurons. What do sensory neurons do in your body?
Answer:
Answer in explanation.
Explanation:
Sensory neurons are nerve cells that are triggered by sensory input from your surroundings. Let's say you touch a hot object with your fingers. This causes sensory neurons to activate and transmit messages to the rest of the nervous system about what they've discovered (which is that the object is hot).
I hope I was able to help!
if a cell contains 12 chromosomes at the end of meiosis i, how many chromosomes will the daugher cells contain at the end of meiosis ii
State one importance of photosynthesis
Answer:
Photosynthesis is important to living organisms because it is the number one source of oxygen in the atmosphere. Without photosynthesis, the carbon cycle could not occur, oxygen-requiring life would not survive and plants would die.
Explanation:
What does meiosis typically result in the production of?
Answer:
Meiosis results in the production of gametes (sex cells)
