Which blood cell is most abundant?
Please help I forgot to study!!!
pH is a measure of how acidic/basic water is. The range goes from 0 to 14, with 7 being neutral. pHs of less than 7 indicate acidity, whereas a pH of greater than 7 indicates a base. pH is really a measure of the relative amount of free hydrogen and hydroxyl ions in the water.
When lions prey on a herd of antelopes, some antelopes are killed and some escape and live to reproduce. Which of the following statements best describes this situation?
A. Natural selection is a random process.
B. Individuals with the best adaptations survive long enough to have offspring.
C. Species remain unchanged throughout time.
D. Individuals pass along acquired characteristics to the next generation.
Answer:
B.
Explanation:
This is for Earth and Space but that wasn't a choice to pick.
Which statement best explains the impact of unfavorable oceanic conditions on human behavior?
1. Boating activities decrease along shorelines.
2. Families move toward shorelines.
3. People spend less time playing at the beach.
4. Recreational water sports increase on beaches.
if an object has a mass of 580g what does it weigh
Always convert first to kg
So 580 g is 0.58 kg
Now it depends on which planet you are on, to what gravity the planet has. Lets go with Earth so 10N
0.58 x 10= 5.8
Ans) 5.8 N/kg
The animal-like parasite plasmodium causes the disease
Answer:
Malaria is the answer
Explanation:
The animal-like parasite plasmodium causes diseases like malaria.
What is malaria?A parasite that frequently infects a particular species of mosquito that feeds on people can result in a serious and occasionally fatal disease known as malaria.
An obligatory parasite of insects and vertebrates, Plasmodium is a genus of unicellular eukaryotes. The parasite Plasmodium, which causes malaria, is spread via the bite of an infected mosquito.
Malaria often causes severe disease, including high fevers, shivering chills, and flu-like symptoms. Through the bites of female Anopheles mosquitoes carrying the parasites that cause malaria, people can contract this potentially fatal illness. It can be avoided and treated.
Therefore, malaria is brought on by the parasite plasmodium, which resembles an animal.
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ALOT OF POINTS! PLEASE HELP I BEG OF YOU!! NO RANDOM ANSWERS PLEASE!!!
1. Give two similarities between each of the skulls that might lead to the conclusion that these are all related species.
Answer:
here!
Explanation:
the eyes and the beak shape on the skulls are similar throughout all of the species and that circle in between their teeth which may be a gap is consistent throughout the skulls.
The diagram shows the process of osmosis in a beaker model. Only the water molecules could pass through the membrane by osmosis because water molecules________.
a) contain more hydrogen atoms than the other molecules
b) have more energy than protein molecules
c) can pass through the selectively permeable membrane
d) are more numerous than the protein molecules
Answer:
i think it is C correct me if am wrong
the cells produced during meiosis are?
Answer:
Meiosis is a type of cell division that reduces the number of chromosomes in the parent cell by half and produces four gamete cells. This process is required to produce egg and sperm cells for sexual reproduction. During reproduction, when the sperm and egg unite to form a single cell, the number of chromosomes is restored in the offspring.
Explanation:
sourced from nature.com
How are the three international conflicts similar and how are they different?
Answer:
what's the question? It is not showing anything expect for "How are the three International conflicts similar and how are they different."
I’m not sure if I’m anywhere close to right on this, can someone simply review it and give me feedback? Please! Giving all my points
Answer:
Your 100% Correct Im an advanced scientist in highschool!
Well Done! Also Im new so sorry if you done trust.
Explanation:
Which two statements describe what happens to the nucleus of an atom
during a fission reaction?
A. A small amount of the energy in the nucleus is converted to
mass.
B. Nuclei with small masses combine to form nuclei with larger
masses.
C. Large nuclei break apart into two or more smaller nuclei.
D. Each nucleus formed has fewer protons than the original nucleus
had.
Answer is c and d
Answer:
Answer is c and d
Explanation:
A negative feedback loop is a reaction that causes a decrease in function. Often, it causes the output of a system to be lessened; so, the feedback tends to stabilize the system. This can be referred to as homeostasis, as in biology, or equilibrium, as in mechanics.
What is baseline imbalance?This is simply known as a form of art that pertains to systematic error when producing an intervention groups in any clinical trial. In this type of imbalance, the groups differ in baseline traits due to the fact that the participants were selected or assigned.
There are different ways to balance a load. Why is the figure considered to be an example of a negative feedback system as opposed to a positive feedback system is that The figure shows the correction of an imbalance back to a baseline.
Therefore, A negative feedback loop is a reaction that causes a decrease in function. Often, it causes the output of a system to be lessened; so, the feedback tends to stabilize the system. This can be referred to as homeostasis, as in biology, or equilibrium, as in mechanics.
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What planet was calculated to exist before it was actually seen?
Answer:
The planet NEPTUNE was mathematically predicted before it was directly observed.
can someone help plssssssssssss
Answer:
Distrupted
Explanation:
the main flow of homestasis was "disrupted" as now some of the cells can't carry out the main bodily funtions.
Answer:
To this Extent - Distrupted
The main flow of homestasis was "disrupted" as now some of the cells can't carry out the main bodily funtions.
TRUE OR FALSE: Phospholipids that are a part of the nuclear envelope (membrane around the nucleus) can easily move from one part of the cell to another, and may ultimately become part of the cell membrane, the ER, a vesicle membrane, etc. In fact, any phospholipid may be called a "cellular tourist" because it is able to move about to virtually any part of a cell and can even become a part of a cell in a different region of the body! (EXPLAIN WHY)
Answer:
False, because phospholipids are a type of lipids and the nuclear envelope contains nucleic acids.
Explanation:
Hope this helps.
It is true that phospholipids that are a part of the nuclear envelope (membrane around the nucleus) can easily move from one part of the cell to another, and may ultimately become part of the cell membrane, the ER, a vesicle membrane, etc.
What is nuclear envelope made of?The nuclear envelope is made up of two concentric lipid bilayer membranes separated by a 20-40 nm intermembranous space.
In many places, the outer membrane is joined to the rough endoplasmic reticulum. The outer membrane of the nuclear envelope, like the rough ER, is dotted with ribosomes.
The nuclear envelope is made up of two membranes: an outer and an inner phospholipid bilayer. The lumen of the rough endoplasmic reticulum is connected to the thin space between the two layers (RER).
Nuclear pores, which are small channels that run across the nuclear envelope, allow substances to enter and exit the nucleus.
Each pore is lined by a group of proteins known as the nuclear pore complex, which regulates which molecules can enter and exit.
Thus, the given statement is true.
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All the different organisms that interact in a pond make up
A a community
B the water cycle
C a population
D the habitat
How have plants evolved?
Give at least 5 examples.
Answer:
Over time, plants had to evolve from living in water to living on land. In early plants, a waxy layer called a cuticle evolved to help seal water in the plant and prevent water loss. ... To allow the plant to retain water and exchange gases, small pores (holes) in the leaves called stomata also evolved (Figure below)
Explanation:
1 DNA evidence suggests that the first eukaryotes (green plants) evolved from prokaryotes (through endosymbiotic events) between 2500 and 1000 million years ago. ... Cyanobacteria have a close evolutionary relationship with eukaryotes. They have the same photosynthetic pigments as the chloroplasts of algae and land plants.
2Plants adapt their growth, including key steps in their life cycle such as germination and flowering, to take advantage of environmental conditions. ... All land plants evolved from an aquatic ancestor, and it was after colonisation of the land that the gibberellin mechanism evolved.
3 700 million years ago
The researchers found that land plants had evolved on Earth by about 700 million years ago and land fungi by about 1,300 million years ago — much earlier than previous estimates of around 480 million years ago, which were based on the earliest fossils of those organisms.
4 The earliest trees were tree ferns, horsetails and lycophytes, which grew in forests in the Carboniferous period. The first tree may have been Wattieza, fossils of which have been found in New York State in 2007 dating back to the Middle Devonian (about 385 million years ago).
5 Plants adapt to their environment from necessity. Plants may also adapt by growing lower and closer to the ground to shield themselves from wind and cold. Desert environments may have some of the following adaptations, these help the plant to conserve food, energy and water and still be able to reproduce effectively.
giveme brainlyest
Which of the following objects absorbs the most light?
Answer:plants
Explanation:
Answer:
D a wool carpet
Explanation:
is the answer
when a sperm and egg cell combine, the new cell called a zygote contains:
1: 46 chromosomes
2: 23 pairs
3: 22 chromosomes
4: no pairs
Answer:
2, 23 pairs
Explanation:
it is honestly the only one that makes sense
The area of the cell that is associated with the production of ribosomes is the:
1. nucleolus
2. nucleus
3. nuclear pores
Answer:
Nucleolus
Explanation:
This is a more technical answer. The Nucleolus is located inside the nucleus and this is the location where the ribosomes are produced. They then leave through the nuclear pores to be sent out into the cell.
The area of the cell that is linked with production of ribosomes is nucleolus. The correct option is 1.
What is nucleolus?The nucleolus is a circular shape within the nucleus of cells that produces and assembles the cell's ribosomes. Ribosomal RNA genes are also transcribed in the nucleolus.
The nucleolus has the most visible realm in the nucleus of a eukaryotic cell, and its basic task is ribosomal RNA (rRNA) melding and ribosome biogenesis.
The nucleolus, as the site of ribosome biogenesis, is critical to cell metabolic activity.
It is made up of ribosomal DNA (rDNA), which is found in tandem arrays in nucleolus event coordinator regions.
The nucleolus synthesizes ribosomal subunits from proteins and ribosomal RNA, or rRNA.
It then starts sending the subunits to the rest of the cell, where they join together to form complete ribosomes.
Thus, the correct option is 1.
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The amount of the earth's surface covered by oceans is approximately what ?
A: 1/4
B: 1/3
C: 1/2
D:3/4
E: 4/5
pleaseeee hurry
Answer:
3/4
Explanation:
I would have to say this because earth is covered in about 71% of water and 3/4 is closest to that. :)
6. What is the function of the vacuole in a cell?
A.)transports proteins to other locations in the cell
B.) breaks down food and releases energy
C.) stores water, waste products, and food
D.)manufactures proteins
Answer:
c, vacuoles are storage spaces
Answer:
[tex]vacuole \: in \: a \: cell \: stores \: water, \\ \: waste \: products ,\: and \: food.[/tex]
1. Calculate the density of a piece of wood with a volume of 216cm3 and a mass
of 64g
Answer:
Density = Mass/Volume
Density = 216cm3/64g
Density = 3.375 g/cm3
Let me know if this helps!
help me pleaaaasseee!!!?? explain how locusts affects crop production and how it can be prevented...
I think this will help
Explanation:
good luck. :)
The zebra mussel is an invasive species. Which statement is most likely true if the zebra mussel is introduced to a new environment without predators?
A. Zebra mussels will disrupt the community and cause native species to decline as they eat all the food.
B. Zebra mussels will not cause a significant change in the community.
C. Zebra mussels will become part of the climax community.
D. Zebra mussels will become the keystone species.
Answer:
A.
Explanation:
when given that a species is invasive you can read through the answers and determine which description sounds invasive
Shortage of food plants, erosion of land, and decrease in oxygen levels are all effects of
Immigration
Deforestation
Mining
Trade
Answer:
Deforestation
Explanation:
I took this quiz and got a 100.
Polysaccharides are made of?
a. One glucose molecule
b. Many glucose molecules
c. Many fatty acids
d. DNA
Answer:
b. Many glucose molecules
Explanation:
poly means many
natural selection is an example of a mechanism of evolution. does this mechanism produce a change in individuals or populations? explain
Natural selection refers to the procedure where the species better amended to their surrounding appear to survive and generate more offspring. Natural selection refers to one of the mechanisms that make modifications in the frequencies of genes in populations and thus, it is the mechanism of evolutionary change.
However, the phenomenon of genetic drift and natural selection cannot take place unless and until there is a genetic variation, that is unless some individuals are genetically distinct from others.
Describe What
happens to a planarian when
it is cut into two pieces?
What will determine whether or not mutations will be passed to offspring?
