Answer:
Half-life, in radioactivity, the interval of time required for one-half of the atomic nuclei of a radioactive sample to decay (change spontaneously into other nuclear species by emitting particles and energy), or, equivalently, the time interval required for the number of disintegrations per second of a radioactive
Explanation:
Zeke is trying to plant a garden but he does not have much space. Zeke decides to trim the ends of the roots of the plants he is putting in his garden. After a week, Zeke notices that his plants did not grow at all. Explain why this happened.
Answer:
Zeke has cut the meristematic cells at the root tip, hence, the root will not elongate to get nutrients and water needed for plant growth.
Please find more explanation below
Explanation:
The root tips of a plant contain cells that actively divide, hence, causing growth or elongation of the roots. This allows the root to grow or penetrate into the soil in search of nutrients and water needed for the plants growth.
According to this question, Zeke decided to trim the ends of the roots of certain plants he is putting in his garden due to lack of space. However, he later discovered that these plants did not grow at all. This is because Zeek has cut off the root tip that contains the MERISTEMATIC CELLS responsible for the elongation of the roots into the soil. Hence, the roots are unable to absorb water and nutrients for the plant, preventing the overall growth of the plant.
Which statements are true of white blood cells? Check all that apply
A. They are called leukocytes
B. They carry carbon dioxide
C. They contain hemoglobin
D. They protect against infection
Answer:
1,4
Explanation:
Edge
Answer:
They are called leukocytes.
They protect against infection.
Explanation:
Which pharmacological treatment would help a patient with GERD the most?
o anti-inflammatories
antidiarrheals
antibiotics
antacids
Answer:
Antacids
Explanation:
I took the test and I got it right ✅
The pharmacological treatment would help a patient with GERD the most is antacids as o anti-inflammatories cannot be used.
What is GERD ?
A digestive disorder wherein belly acid or bile irritates the meals pipe lining.
Aantacids sellers have emerge as the medication of preference for GERD. Both proton pump inhibitors (PPIs) and histamine H2-receptor antagonists (H2-RA) are powerful and may be properly used to deal with GERD.
Read more about the GERD here :
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1. What common characteristics do you notice in all the marine ecosystems? What are some major differences?
Answer:
Marine ecosystems are characterized by factors such as availability of light, food and nutrients. Other factors that affect marine ecosystems include water temperature, depth and salinity, as well as local topography. Changes in these conditions can change the composition of species that make up the marine community.
What are some methods that predators use to capture prey?
Answer:
Offensive Strategies of Predators
Cheetahs use speed to outrun their prey, and eagles, hawks, owls and falcons use flight to their advantage while hunting. Venomous snakes, spiders and wasps use poisons to either kill or immobilize their prey. Some predators even use mimicry to capture prey.
Can someone please help me??
Which type of reproduction is responsible for genetic variation?
Answer:
sexual reproduction
Explanation:
Sexual reproduction results in infinite possibilities of genetic variation. In other words, sexual reproduction results in offspring that are genetically unique. They differ from both parents and also from each other.
Other reproductions like asexual, budding or fragmentation don't produce genetic variation.
The type of reproduction is responsible for genetic variation is - sexual reproduction.
Sexual reproduction is combining genetic information from two individuals, by the fusion of gametes such as sperm and egg, called fertilization which generates more genetic variation, by the process like the combination of alleles and crossing over.
Parents and offsprings are not identical in this reproduction type, however, they are genetically similar.Fusion or combination of two different parent's gametes.There is recombination take place which causes genetic variations as well.Thus, the correct answer that is responsible for genetic variation is - sexual reproduction.
Learn more about sexual reproduction:
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How many times did a heart beat a minute
Answer:
60-100 bpm (beats per minute)
Explanation:
The normal resting heart rate for adults ranges from 60-100 beats per minute.
Help plzzzzzzzzzzzzzzz
Answer:
B) they make the spindle fibers
Explanation:
Multiple choice!!!
Long term environmental change to an area is likely to create selective pressure that will
A. mutate the genetic makeup of organisms
B. influence adaptations of populations over time.
C. cause a decrease in reproductive rates.
B. allow organisms to select the best adaptations.
What is one difference between natural selection and artificial selection?
a)Natural selection involves humans; artificial selection does not involve humans
b)Natural selection does not involve humans; artificial selection involves humans
c)Natural selection takes longer than artificial selection
d (Artificial selection only involves plants; Natural selection only involves animals
Answer:
B
Explanation:
Natural selection and selective breeding can cause changes in animals and plants. The difference between the two is that natural selection happens naturally, but selective breeding only occurs when humans intervene. For this reason, selective breeding is sometimes called artificial selection.
please help me.......
Answer:
13. cytoplasm
6. microscope
7. tissue
5.organ system
15. organ
what are the two reservoirs for nitrogen
Answer: Atmosphere and Continental Crust
Which is NOT true about the macromolecule pictured?
Pls help lol
Answer:
C i think
Explanation:
The brain is most active during which portion of each sleep cycle?
A. the beginning of each sleep cycle
B. the middle of each sleep cycle
C. the end of each sleep cycle
D. The brain is not active during the sleep cycle.
Please select the best answer from the choices provided
Ο Α
Answer:
b i think
Explanation:
Im not sure if anyone knows this or not.
Can someone please help me with 1 and 2! If u r correct ill mark u was the best answer
I'm pretty sure the answer to 1 is A, but I know for a fact that soil contains microorganisms and microbes.
The answer to question 2 is D (Porosity)
17. Which of the following BEST describes the concept of reclamation? (1 point)
O creating new, habitable land out of riverbeds
O clearing naturally grown forests
O using microorganisms to restore a polluted area
O using a natural resource over again
is the mass of wood charcoal and oxygen the same before and after the fire ?
Answer:
Here u go I even looked it up for u ;)
The law of conservation of mass was created in 1789 by a French chemist, Antoine Lavoisier. ... For example, when wood burns, the mass of the soot, ashes, and gases, equals the original mass of the charcoal and the oxygen when it first reacted. So the mass of the product equals the mass of the reactant
Insect 1 : Vespula flavopilosa
Insect 2: Vespula rufa
Insect 3: Callicera rufa
(a) Insects 1 and 2 are more closely related to each other than to insect 3.
(i)Explain how the binomial names indicate that insects 1 and 2 are more closely related.
(i)Explain how the appearance of the three inswcts suggest that insects 1 and 2 are more closely related.
HELPPP I NEED TO KNOW NOWWWW!!
Note:
In the attached files you will find the image of the three insects
Answer:
(i) Because they share the same genera, Vespula.
(ii) Because Morphologically, insects 1 and 2 are more alike than insect 3.
Explanation:
(i) Explain how the binomial names indicate that insects 1 and 2 are more closely related.
In taxonomy, many categories are used to aggregate organisms according to their evolutive relationship. These are Domain, Kindom, Clase, Order, Family, Genera, Species, Subspecies. All species might be recognized by their common name and their scientific name, which is more reliable. The binomial names of living beings indicate the scientific name by which the organisms can be recognized. A species scientific name is composed of two parts:
- Generic name or genera: correspond to many species that share common characteristics. In the example, Vespula is the genera
- Specific epithet: useful to identify each species in particular and differentiate organisms that are included in the same superior taxes. In the example, flavopilosa and rufa are the epithets that differentiate one species from the other.
According to this, we might assume that species 1 and 2 are more closely related because they share the same genera: Vespula. This suggests that they share more characteristics in common with each other than with Callicera.
(ii) Explain how the appearance of the three insects suggests that insects 1 and 2 are more closely related.
Morphologically, insects 1 and 2 are more alike than insect 3. Traits such as body shape, pigmentation pattern, antenna, wings, total body size, among others, are very similar in species 1 and 2. On contrary, species 3 is smaller, with a thinner antenna, different pigmentation patterns, different wings size and shape.
What trends exist in diabetes?
Answer:
Having high blood pressure and heart attacks
Explanation:
A. AABb
B.AaBb
C.aaBb
D.AaBB
Answer:
C
Explanation:
Use Foyle method.
Question 4(Multiple Choice Worth 5 points)
(LC)
What was one conflict that was resolved in the resolution?
The characters learned to respect each other enough to discuss why the boy tried to grab the purse.
Mrs. Jones took care of the boy's hunger.
The boy asked for the money to buy shoes.
Mrs. Jones taught the boy to have manners.
The answer is the boy asked for money
Answer:
The characters learned to respect each other enough to discuss why the boy tried to grab the purse.
Explanation:
In the short story "Thank You, Ma'am" by Langston Hughes, a young, hungry boy was about to rob a woman of her purse. But as circumstances would turn out, he was unsuccessful in that attempt but then learned a valuable lesson from the very woman he had targeted.
One conflict that was resolved in the resolution was that both of the characters, Mrs. Luella Bates Washington Jones and Roger, learned to respect one another. By her act of inviting him to her home and preparing food for him, Roger also came to respect and trust the woman. It was this faith that helped them discuss the events that led to Roger's failed attempt of robbing Mrs. Jones, and Roger left the house with a sense of appreciation and a change of heart.
Thus, the correct answer is the first option.
Where is the albedo effect the greatest?
a. Africa
b. Australia
c. Europe
d. Antarctica
The product of an object's mass, how high it is, and the acceleration of gravity of the planet it's on define which term
A. Potential Energy
B. Work
C. Power
D. Kinetic Energy
Answer:
kinetic energy
Explanation:
FLVS people there was a question that I was double checking and it was wrong even though it was expert verified!
The Question was:
What evidence supports a conservation law?
Energy from sunlight becomes glucose during photosynthesis.
Carbon dioxide becomes glucose and oxygen during photosynthesis.
Hydrogen is made from the breakdown of carbon dioxide during photosynthesis.
Glucose and oxygen become carbon dioxide and water during photosynthesis.
The correct answer is A)
Energy from sunlight becomes glucose during photosynthesis.
Answer:ok
Explanation:
Answer:
Energy from sunlight becomes glucose during photosynthesis.
Explanation:
Where are most mountains on Earth fomed?
Answer:
asia
Explanation:
Answer:
Mountains are most often formed by movement of the tectonic plates in the Earth's crust. Great mountain ranges like the Himalayas often form along the boundaries of these plates. Tectonic plates move very slowly.
Explanation:
Should the thruster fire exert force in the same direction or opposite direction to bring the Pod to a stop? Explain.
Answer: Explain the claim : Firing the thrusters would have caused the pod to move in the opposite direction. The pod would have had to have a lighter mass meaning a smaller amount of force would have had to be exerted onto the pod making it move in the opposite direction.
Explanation:
In rabbits, straight ears (E) are dominant to floppy ears (e), Two rabbits are crossed, and 50% of their offspring have floppy ears. Which cross represents the
genotypes of the parents?
EEXEE
EE x ee
Ee x EE
Ee x ee
Answer: Ee x ee
Explanation:
Answer:
The correct answer is Ee x ee :)
Explanation:
____ secrete enzymes which break down dead organic matter into smaller molecules that can be absorbed.
Answers:
Detritivore
Decomposer
Producer
Carnivore
Why is water important for living organisms?
Answer:
. ... . ....
Which of the following do plant cells have, but animal cells do not have?
Answer:
Animal cells each have a centrosome and lysosomes, whereas plant cells do not. Plant cells have a cell wall, chloroplasts and other specialized plastids, and a large central vacuole, whereas animal cells do not.