A spermatid changes it into a sperm cell is that meiosis occurs, making the sperm cell haploid.
What is spermatogenesis?Spermatogenesis is the procedure of sperm cell development. Rounded immature sperm cells experience successive mitotic and meiotic divisions (spermatocytogenesis) and a metamorphic change (spermiogenesis) to produce spermatozoa.
Thus, a spermatid changes it into a sperm cell is and meiosis occurs, making the sperm cell haploid.
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____ is when water flows through cities or across fields picking up dirt and pollutants, eventually dumping it into a larger body of water and decreasing water quality.
Erosion
Sedimentation
Runoff
Infiltration
QUESTION PROKARYOTES EUKARYOTES VIRUSES Does it have a nucleus? Does it have membrane-bound organelles? Does it have a cell membrane? Does it have DNA? Is it small, smallest or biggest in size of the three? Imagine in the future that you are an astrobiologist (astrobiologists are scientists who look for life in space) on a mission to another planet. You have discovered something that may or may not be alive, may or may not be prokaryotic or eukaryotic. What information could you gather and analyze about its structure to determine the answer? How can you justify (support) your answer?
Answer:
the prokaryotic virus does not have a nucleus (????) but I do think it has a membrane bound organelle. cant answer the rest. Hope this helps!!!
Explanation:
I did it in biology but the teacher was a bit of a bad teacher.
Wind is caused by the heating and cooling of Earth.
True or false
Answer:
true
Explanation:
Wind is the movement of air caused by the uneven heating of the Earth by the sun.
Hope this helps!
Answer: true
Explanation:
do you think you can answer this?
Describe the structure of DNA and the possible base pairs it contains.
DNA is a molecule made up of thousands of atoms and is very long and thin. It is made up of two twisted chains or "backbones." A double helix is the term for this structure. It would appear like a ladder if you could straighten a DNA molecule out. The ladder's "rungs" are built up of two smaller molecules called bases.
adenine (A) and thymine (T) join together = A-T
guanine (G) and cytosine (C) join together = G–C
DNA is a molecule with a double helix structure. This means that it is shaped like a twisted ladder. The backbone of the molecule is made up of two long chains that spiral around each other. The struts of the ladder are base pairs, which are made up of two bases joined together.
There are four bases: adenine (A), cytosine (C), guanine (G) and thymine (T). These can only join together to form two possible base pairs: adenine–thymine or cytosine–guanine.
Why are there no plants in the aphotic
zone?
A. There is not enough free space to accommodate a
plant colony.
B. There are too many predators, so plants can't survive
long enough to reproduce.
C. There is not enough light for plants to undergo
photosynthesis.
D. There is too much traffic, and plants get trampled
before they can put down roots.
Answer:
C, there is not enough light
Explanation:
Let's look at the word "aphotic". It can be broken into two parts, "a" and "photic". "a" means "not" and "photic" means "light". So, together, they mean "not light". Even if we knew nothing about marine life, we could answer this!
Answer:c
Explanation:
Type the correct answer in the box. Spell all words correctly.
Which term completes the sentence given below?
Proponents of animal
are strictly against the use of animals,
Reset
Next
Answer:
i think its welfare i'm sorry if i get it wrong
Explanation:
Answer:
modest
Explanation:
what is cat litter made of
Kangaroos conserve energy as they move __________.
A)
by using their front paws to help them run
B)
by using a tailwind to push them forward
C)
by using their hind legs like springs
D)
by running only at night
C
The spring-like tendons in their hind legs store energy for leaps, kangaroos use less energy hopping than a horse use in running. Kangaroos tend to move in a leisurely fashion using all four feet plus its hefty tail for balance.
Answer:
Letter C, by using their hind legs like springs
Explanation:
Got it right on edge :)
How does pioneers affect the variety of organisms in an ecosystem?
Describe the interaction between the corn, water, soil, and air in the image. How does energy flow?
The food chain and food web serve as conduits for the energy flow. Plants, who are the primary energy producers in an ecosystem.
What is the mechanism of energy flow in an ecosystem?The autotrophs that absorb energy from the sun are an excellent example of how energy moves through an ecosystem.
Utilize their chloroplasts to accumulate sunlight, which is then partially altered into chemical energy during photosynthesis.
Herbivores eat the autotrophs thereafter, converting the plant's energy into fuel for themselves. Then, carnivores consume the herbivores, followed by other carnivores consuming the carnivores.
Therefore, energy flow in an ecosystem is connected by different trophic level.
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the organelle that sort and ship the proteins produced in the cell may stop this organelle was namd after an Italian physician
Answer:
The Golgi
Explanation:
If an observers latitude is 35N, the altitude of Polaris is what?
if an observers latitude is 35N then the answer i dont know
Which statement would best explain why the carbon cycle is often referred to as the carbon oxygen cycle
Answer: A Plants take in oxygen and combine it with carbon and hydrogen to make carbohydrates.
Explanation:
If you are digging in a 20-million-year-old fossil site in eastern Africa, which primate are you most likely to come across
Answer:
Proconsul
Explanation:
mark me brainliest!!
Are the chemical messengers in the endocrine system that target
cells through the bloodstream
Answer:
Hormones
Explanation:
Hormones are chemical messengers in the endocrine system, and they are secreted by many types of glands, such as the pituitary gland and the thyroid gland, as well as target cells through the bloodstream, and are released into the bloodstream by endocrine glands.
1) The chart indicates the digestion and nutrient absorption for two different species of animals.
Which of these describes the interaction between the food intake and nutrient absorption for these two different species?
A) Carnivores have a more efficient intestinal absorption since meat is higher in caloric value.
B) Carnivores have more digestive organs over which food digestion and nutrient absorption can occur.
Herbivores require a shorter digestion time with a higher amount of nutrient absorption into the bloodstream.
D) Herbivores have a greater intestinal length that allows for increased absorption of nutrients from a plant-based diet.
Herbivores having a greater intestinal length that allows for increased absorption of nutrients from a plant-based diet best describes the chart.
What are Herbivores?These are organisms which feed on plants and are referred to as primary consumers.
They possess four stomachs and a greater intestinal length that allows for increased absorption of nutrients from plant diet which contains polysaccharides such as cellulose.
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Apply your understanding of how living organisms use energy to argue in favor of why it is either beneficial or detrimental for cells to use ATP rather than directly using the energy stored in the bonds of carbohydrates to power cellular reactions.
a. ATP is readily available in the form of a single unit that provides a consistent, appropriate amount of energy. If cells harvested energy from various carbohydrate compounds, they would need to tailor each reaction to each energy source.
b. ATP energy cannot activate the ROS dependent stress response whereas food molecules are responsible for activating ROS.
c. ATP is low in energy, but food molecules (in the form of carbohydrates) possess higher levels of energy that cells can use.
d. ATP is readily available to cells, unlike the carbohydrate compounds that have to first be phosphorylated in order to release their energy.
Answer:
ATP is readily available in the form of a single unit that provides a consistent, appropriate amount of energy. The cell would need to tailor each reaction to each energy source if it harvested energy from different compounds.
Explanation:
When a cold air mass collides with a warm air mass and lifts the warm air out of its way, there is _______.The rising warm air causes water vapor to condense and clouds to form.
A )cold front
B ) A hot and cold front
C ) hot front
D ) None of the above
Answer:
c
Explanation:
What part of the brain controls artistic and mathematical abilities? A. Cerebrum B. Cerebellum C. Brain stem
The brain has main functions but the part of the brain that controls artistic and mathematical abilities is the Cerebrum's
What is the function of the Cerebrum?Generally, the Cerebrum resides in the left hemisphere which is in charge of controlling speech, arithmetic, and writing.
In conclusion, The Cerebrum's the largest part of the brain, the cerebrum's main function is to create and harmonize motion, some other functions of the cerebrum are to facilitate speech reasoning, feelings, and understanding.
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Several models of atoms are mentioned in this lesson. Plum pudding, planetary and quantum mechanical. Which reason below explains why there are different atom models?
Because atoms have changed their structure over time
Because there are different types of atoms
Because the ideas about the models changed as more discoveries were made about the atom
Because many people came up with models at the same time
Answer:
Because the ideas about the models changed as more discoveries were made about the atom
Explanation:
The structure of the atom was not always known and it took many discoveries to fully figure it out. Through these discoveries, many models were proven invalid; though they still helped in the long run by providing a basic idea on the basis of an atom.
Remember, models are able to change over time, they are merely theories after all; and scientific theories change, unlike laws.
How do scientist prevent bias from affecting their conclusions?
Scientists keep their personal opinions and preferences separate from determining the conclusion.
Scientists will ask other scientists for their opinion.
Scientists will ask their family members for their own opinions.
Answer:
Scientists keep their personal opinions and preferences separate from determining the conclusion.
Explanation:
Hope this helps.
What is true about enzymes?
Answer:
Enzymes are proteins and they act as a catalyst
Explanation:
They bind to subtrates and turn them into products.
Describe where in the cell starch grains are found.
What are convection currents
Answer:
Convection is the transfer of heat due to the bulk movement of molecules within fluids, including molten rock.
Explanation:
What two substances make up most viruses?
Answer:
Viruses are made up of two basic parts: the core (nucleic acid- DNA/RNA and the capsid protein coat that surrounds the core.
Explanation:
explain why the Antarctic circumpolar current is the only surface current that circles the entire globe
Answer: The current is circumpolar due to the lack of any landmass connecting with Antarctica and this keeps warm ocean waters away from Antarctica, enabling that continent to maintain its huge ice sheet.
Explanation:
Answer:
There are no landmasses to block the Antarctic Circumpolar Current.
Explanation:
Why does increased biodiversity result in a more sustainable ecosystem
Answer:
there is a greater variety of genes and species in that ecosystem
Which organism exhibits behavioral adaptation?
- an owl with large pupils and eyes that enable it to see better at night.
- A possum playing dead to increase its chances of survival.
- An insect that mimics it’s environment to hide from its predators.
- A desert plant that sheds its leaves to lessen water loss during the dry season.
Answer:
B
Explanation:
a possum playing dead to increase its chances of survival
All of the options provided involve some form of adaptation, but the one that specifically involves behavior is the possum playing dead to increase its chances of survival. Hence option B is correct.
What is Behavioral adaptation?Behavioral adaptation refers to changes in an organism's behavior that help it to better survive and thrive in its environment. Playing dead, or "playing possum," is a behavioral adaptation that some animals, including possums, use when they feel threatened.
By playing dead, the possum is essentially trying to fool its predator into thinking that it is no longer a threat or a viable prey item. This behavior can increase the possum's chances of survival by deterring predators and allowing it to escape unharmed.
Other examples of behavioral adaptation include migration, hibernation, and communication between members of the same species. These behaviors can help organisms conserve energy, avoid harsh environmental conditions, and increase their chances of finding a mate or resources for survival.
Hence option B, A possum playing dead to increase its chances of survival is correct.
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How can a hormone that is present in very small quantities within the bloodstream elicit such a large response within a cell?.
Answer:
-Cells degrade the hormone into many tiny molecules, and then each piece creates a response within the cell.
Explanation: