Answer:
B. sperm cell and polar nuclei
Explanation:
What are some water pollution management strategies, what do you think is the best one and why?
Answer:
There are plenty of things that we as individuals can do to slow down the amount of pollution going into the ocean, these could include not flushing anything down the toilet that won't disintegrate (because no matter where you live, all toilet pipes lead to the ocean), converting plastic use to reusable materials; this could include using reusable straws, water bottles, shopping bags, etc. and of course, when you need to throw plastic out, always recycle. :)
Explanation:
I believe the best way an individual can help the oceans is by converting plastics to reusable or at least eco-friendly products. If everyone made a conscious effort to do this, the oceans would be MUCH clearer.
Hope this helps!
In a DNA strand, 80% of the strand is made up of adenine and thymine. How much adenine, thymine, cytosine, and guanine is made up in the strand
Answer: The perecentage of guanine is 30%
Explanation:
According to the Chargaff's rules the DNA from any cell of all organisms should have a 1:1 ratio (base Pair Rule) of purine bases [for the DNA cytosine, thymine and for the RNA uracil] and pyrimidine bases [guanine and adenine for RNA and DNA]. The amount of guanine should be equaled to cytosine and the amount of adenine should be equaled to thymine. You can follow this rule in both strands of the DNA.
Explanation:
I don't know about the others sorry!
What cell tissue helps animals move? .
The answer ➪ The tissue that helps animals move is muscle tissue.
Insta: 25k_kemA body of water, located near Fresh Kills, is highly polluted because rain washes toxic materials from fresh kills into the water. This process is known as___?
Answer:
noooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooo
Explanation: i dont know
A student wanted to see if covering a leaf in foil would stop it from producing starch. Why should the student put the plant in a dark cupboard for 48 hours before returning it to the light and starting the experiment?
1. To make the results reliable
2. So that the plant would photosynthesise faster when returned to the light
3. So that any starch already in the leaf was used up by the plant
4. He did that simply
Answer:
4.) He did that simply
Explanation:
I'm just guessing it's 1 because the other answers don't seem reasonable
Answer:
Putting the plant in dark for 48 hours would stop the process of photosynthesis as light is required for it. Photosynthesis produces organic sugars which are stored in form of starch in plants. The absence of photosynthesis would lead to the consumption of all stored starch making the leaf starchless. The correct answer is option D.
Explanation:
Which is an example of an animal responding to an external stimulus?
A. A dog growing a winter coat
B. A cat drinking milk
C. A mouse eating food
D. A person sleeping
Answer:
A. A dog growing a winter coat
Explanation:
Animal Responses to External Stimuli
Animals must react to changes in their external environment to survive. If a reaction is immediate and involuntary, the response is called a reflex reaction. Blinking the eyes in response to sunlight is an example of a reflex reaction.
9. Things that an organism can sense are usually referred to as...
Answer:
stimuli
Explanation:
I think its stimuli, because this is the response to a factor.
A scientist is observing a eukaryotic cell and a prokaryotic cell. Which structure could she only observe in the eukaryotic cell?
a. cytoplasm
b.dna
c.ribosomes
d.the neucles
Answer:
D.
Explanation:
Answer:
c
Explanation:
Which is the correct sequence of the urine's pathway as it is formed and exited from the body?
urinary bladder, kidney, ureter, urethra
O kidney, urethra, urinary bladder, ureter
O urinary bladder, ureter, kidney, urethra
O kidney, ureter, urinary bladder, urethra
Answer:
Kidney, ureter, urinary bladder, urethra
Explanation:
Kidney, ureter, urinary bladder, urethra is the correct sequence of the urine's pathway as it is formed and exited from the body. Therefore, option (D) is correct.
What is Urinary tract?Urine, which contains wastes and extra fluid, is expelled from the body through the urinary tract, which serves as the body's drainage system. Urine is removed through the urinary tract. In order for normal urination to take place, it is necessary for all of the body parts that make up the urinary tract to cooperate with one another and do so in the appropriate sequence. The component of the body that processes urine and consists of two kidneys, two ureters, a bladder, and a urethra.
Infections can also occur in the urinary tract, and these infections are caused by microorganisms, most commonly bacteria, that enter the urethra and the bladder. These microorganisms are what cause inflammation and infection in the urinary tract. Even though a urinary tract infection (UTI) most frequently takes place in the bladder and the urethra, bacteria are able to travel up the ureters and infect your kidneys if they have the chance.
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Could someone help me?
Every organism has a set of instructions that determines its traits. Which term describes the process through which it receives this set of instructions?
Gene
Heredity
Repetition
Generation
Answer:
B.
Explanation:
Which two processes are most likely to contribute to global climate change?
Answer choices
A) Agriculture and mining
B ) Deforestation and fossil fuel burning
C ) Fossil fuel burning and agriculture
D ) Sedimentation and deforestation
This type of cell can develop into different types of blood cells in a body. I will give brainiest to anyone who can help me with this
A. ectoderm
B. pluripotent stem cell
C. totipotent stem cell
D. multipotent stem cell
Answer:
c
Explanation:
because thats what I think the answer can be
B. pluripotent stem cell. Pluripotent stem cells are a type of stem cell that have the ability to differentiate into many different types of cells, including blood cells.
What are pluripotent cells?Pluripotent stem cells are a type of stem cell that have the ability to differentiate into many different types of cells, including blood cells. They are "pluripotent" because they can give rise to many different cell types, as opposed to more specialized stem cells, such as multipotent stem cells, which can only differentiate into a limited number of cell types.
Pluripotent stem cells are important because they have the potential to be used for regenerative medicine and to treat a wide range of diseases, such as blood disorders, cardiovascular disease, and neurodegenerative diseases. They can also be used to study early human development and to understand the underlying mechanisms of disease.
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PLEASE HELP ME WITH SCIENCE WILL MARK BRAINLIEST!
1: What gases are used and expelled by photosynthesis and respiration?
2: Where are the largest concentration of ozone and what value does it have?
3: What happens to the surface of the earth when there is an increase in greenhouse gases?
Answer:
1 Photosynthesis uses CO2 and expels O2 and the reverse for respiration
2. stratosphere where ~90% of it is
3. Less infrared radiation is able to escape from the earth into space and that infrared radiation hits the GHG gases and the radiation is turned into kinetic or heat energy trapping which warms up the earth
Explanation:
Answer:
1. Used by Photosynthesis: CO2 Expelled: O2
Used by Cellular respiration: O2 Expelled CO2
2. Most ozone (about 90%) is found in the stratosphere, which begins about 10–16 kilometers (6–10 miles) above Earth's surface and extends up to about 50 kilo- meters (31 miles) altitude. The stratospheric region with the highest ozone concentration is commonly known as the “ozone layer”
3. The surface of the earth heats up
Explanation:
True or false?
The ocean floor’s topography is much less diverse than that of the continents.
You eat a carrot. ______ of the energy passes from the carrot to you.
Question 1 options:
a little
half
a lot
all (100%)
I’ll mark you as brainliest!
Answer:
it isn't silent as it changed the amino acids produced
it is a frameshift mutation due to deletion as they all shifted to the left after the first triplet (it was the 4th base from the left the G, or guanine that was deleted)
Explanation:
a squirrel dropped an acorn from a branch of an oak tree. which of these will change as the acorn falls from the tree to the ground? the mass of the acorn the density of the acorn the force of the acorn the velocity of the acorn
As an acorn is dropped form a branch of an oak tree, the force applied on the acorn changes which results in the dropping off of acorn seed. Thus, the correct option is C.
What is Force?A force is a push or a pull which changes the motion of an object. The fundamental forces are of four types such as: Gravity, Electromagnetism, Strong interaction, and Weak interactions.
Here, Gravitational force or gravity is applied during the dropping of an acorn seed form the oak tree. In some plants, seeds simply drop off on their own. However, some plants rely on the gravity to disperse off their seeds for pollination and other purposes. Seeds from the poppy plant emerge from their fruit such as a pepper drops from a shaker which allows a plant to form the colony around it.
Therefore, the correct option is C.
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Which is a density-dependent factor?
Answer:
Density-dependent factors include disease, competition, and predation. Density-dependant factors can have either a positive or a negative correlation to population size. With a positive relationship, these limiting factors increase with the size of the population and limit growth as population size increases.
Explanation:
Hoped this helped!
Plants that have reproductive structures called cones are
A. angiosperms.
B. gametophytes.
C. gymnosperms.
D. sphorophytes.
Plants that have reproductive structures called cones are gymnosperms
Both the liver and kidneys are organs of the excretory system. How do the two organs work together to complete a task?
Answer:
When the liver has broken down due to harmful substances, its by-products are exerted into the bile or blood. Bile by-products enter the intestines and leave your body in the form of feces. Blood by-products are filtered out through the kidneys and leave the body in the form of urine.
Explanation:
When the liver is damaged by harmful substances, their by-products move into the bile or blood, where the by-products of bile enter the intestines and leave your body as feces and by-products of the blood. -products are filtered through the Kidneys and leave the body as urine.
What is Excretion?Excretion is defined as the process in which metabolic waste is eliminated from an organism, this is done by the lungs, kidneys and skin in vertebrates.
This is in contrast to secretion, where matter may have specific functions after leaving the cell where excretion is an essential process in all forms of life.
Through excretion organisms control osmotic pressure which is defined as the the balance between inorganic ions and water and maintain acid-base balance.
Thus, when the liver is damaged by harmful substances, their by-products move into the bile or blood.
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The kingdom that includes all the unicellular organisms that do not fit into any other category is
a. archaebacteria
b. fungi
c. protist
d. plantae
plants can increase which of the fallowing in soil??
A.number of rocks
B.amount of minerals
C. organic matter
D. size of mineral
.
I believe the answer is B.
Sorry if wrong.
God bless
so... um.... i need jus a lil bit of help wit dis
Answer:
commensalistic- you were in the womb
mutualistic-At work
parasitic-living with parents
Explanation:
1)When you were in the womb you took nutrients from your mother but your mom didn't benefit but she wasn't dying either.
2) You do a job, get payed so thats how you benefit. You help your employer by completing work and giving them profit also.
3) Your parents raised you,feed you,buy you clothes ans stuff, spend time at your school events,pay for your utilities while you live with them but you don't really give them much back.
The cell will ____________ in CORN SYRUP because _____________________________________________________.
Answer:
The cell will shrink because water can move in but proteins cannot move out.
Explanation:
Since the egg membrane is semi-permeable, water can move in but proteins cannot move out. If a naked egg is placed in the corn syrup the egg will shrink. This is also due to osmosis, but in the opposite direction. The corn syrup is mostly sugar.
5)
Which male reproductive structure below produces sugary (energy-filled) fluid for the sperm to swim and survive?
A)
testes
B)
vas deferens
prostate
D)
seminal vesicle
testes
i learned this, this year lol
What are the two types of seed plants?
Answer:
The gymnosperms and the angiosperms
True or false: photosynthesis uses food such as sugar
Answer:
False
Explanation:
Photosynthesis releases glucose (sugar) amongst a couple of other things. It's reactants are sunlight, water, and Carbon dioxide.
What type of bond does a water molecule feature and why?
A polar covalent bond because the electrons shared by the oxygen and hydrogen spend more time with the hydrogen, creating a negative
A.
charge around the hydrogen.
A nonpolar covalent bond because the electrons are shared equally by the oxygen and the hydrogen, resulting in no net charge on any of
B.
the atoms.
A polar covalent bond because the electrons shared by the oxygen and hydrogen spend more time with the oxygen, creating a negative
C.
charge around the oxygen.
Answer:
C
Explanation:
What traits would make this species more “fit”??
Answer:
Organisms (or genes or replicators) don't survive because they are fit; rather, they are considered fit because they survived. ... Fitness isn't a property of a given gene or genotype; it's always contextually dependent on the interaction between the gene of interest and a range of other factors.
Explanation:
Brainliest involved!! Help please and thank you
Answer
D
Glycolysis is the process, which occurs in cytoplasm of cell. This is the process which involves the breakdown of glucose to pyruvate. Citric acid cycle and beta oxidation of fatty acids occurs in the mitochondrial matrix, electron transport chain and oxidative phosphorylation occurs in the oxysomes. So, it is NOT a.
It has to be 2 and 3, which is D.
Explanation:
Answer:
A
Explanation: