which statements about human sperm cells are true?

choose all that apply:
a. they have half the chromosomes of other body cells
b. they have twice as many chromosomes as other body cells
c. they have 46 chromosomes
d. they have 23 chromosomes

Answers

Answer 1
B, d they have 23 chromosomes
Answer 2
The answer is D i think??

Related Questions

Help pls asap ill give brainliest if u get i right ;)

Answers

Answer:

a

Explanation:

im pretty sure np!

the answer should be A, i don’t know i’m not good at this

How do seasons compare in the northern and southern hemispheres?

Answers

Answer:

When it's summer in the northern hemisphere, it's winter in the southern hemisphere, and other such.

Explanation:

Summer for north winter for south

Why do you think DNA evidence is the best evidence for determining how closely related organisms are?

Answers

because it hdherhrheh

Answer:

DNA evidence can show the evolution patterns of organisms, the relationships among species, and how evolution occurs. Because of this, DNA evidence can show how closely related organisms are by comparing DNA and genetic codes to show their shared ancestry and how they evolved.

Hope this helps! :)

I'll give brainliest to the person who gets it right with an explanation!
Which of the following is NOT a true statement about herbivores, carnivores, or decomposers?
Herbivores eat plants.
Omnivores eat other animals and dead organisms.
Decomposers break down dead organisms to release matter back into the environment.
Carnivores eat other animals.

Answers

Omnivores eat other animals and dead organisms is the wrong statement.

Omnivores are the animals which can eat both plants and animals.

Omnivores eat other animals and dead organisms is incorrect.

Omnivores eat plants and animals. They, in other words, are a combination of carnivores and herbivores

Present-day India is in South Asia, at the northern end of the Indian Ocean. What evidence found in India matches that of other locations?

Answers

Answer:

Pieces of evidence to support the hypothesis of continental drift. Mountain ranges near those continents' coasts seemed to line up, as though they had been made in the same place and at the same time!

Explanation:

What important decomposer did the econauts leave out of the biodome and why was that important?

Answers

Answer:      

Explanation:

The folded mountains is an example of which type of plate boundary?

Answers

Answer: Contential Crust

Explanation:

Describe the dangers faced by prehistoric hominids.

Answers

Answer:

Our ancestors met astonishing challenges in their surroundings, and were susceptible to disease, injury, and predators. Environmental change – one of the ongoing challenges to survival – created both risks and opportunities in the lives of early humans.

Explanation:

environmental change. susceptible to disease, injury, and predators

NEED BIG HELP 30 POINTS a please hurry and no links. Please make the answer correctly.
3. How do gases from the air help break down rocks?

4. How does erosion make more soil? *

5. Explain how erosion can be helpful to the environment. *

6. Explain how erosion can be harmful to the environment. *

Answers

Answer:

3) Chemical weathering changes the molecular structure of rocks and soil. For instance, carbon dioxide from the air or soil sometimes combines with water in a process called carbonation. This produces a weak acid, called carbonic acid, that can dissolve rock.

4) Soil erosion is a gradual process that occurs when the impact of water or wind detaches and removes soil particles, causing the soil to deteriorate. The impact of soil erosion on water quality becomes significant, particularly as soil surface runoff. Sediment production and soil erosion are closely related.

5) Natural soil erosion can play a beneficial role in the environment too. ... The erosion also helped cleanse the soil of any useless materials, such as rotting tree matter or nutrient-less dirt from the area. The replaced soil can often become nutrient-rich and help plant life thrive.

6) The effects of soil erosion go beyond the loss of fertile land. It has led to increased pollution and sedimentation in streams and rivers, clogging these waterways and causing declines in fish and other species. And degraded lands are also often less able to hold onto water, which can worsen flooding.

Explanation:

3) Chemical weathering changes the molecular
structure of rocks and soil. For instance,
carbon dioxide from the air or soil sometimes
combines with water in a process called
carbonation. This produces a weak acid, called
carbonic acid, that can dissolve rock.
4) Soil erosion is a gradual process that occurs
when the impact of water or wind detaches and
removes soil particles, causing the soil to
deteriorate. The impact of soil erosion on water
quality becomes significant, particularly as soil
surface runoff. Sediment production and soil
erosion are closely related.
5) Natural soil erosion can play a beneficial role
in the environment too. ... The erosion also
helped cleanse the soil of any useless
materials, such as rotting tree matter or
nutrient-less dirt from the area. The replaced
soil can often become nutrient-rich and help
plant life thrive.
6) The effects of soil erosion go beyond the loss of fertile land. It has led to increased pollution and sedimentation in streams and rivers, clogging these waterways and causing declines in fish and other species. And degraded lands are also often less able to hold onto water, which can worsen flooding..

1. Who discovered cells?
2. What is the cell theory?
3. List 3 organelles found in the cell and their functions within the cell.
4. What is the purpose of the cell’s nucleus?
5. What are the 2 major differences between plant and animal cells?
6. What is homeostasis?
7. Give an example of how your body/cells maintain homeostasis.
8. What organelle is involved in cell division?
9. Give at least 3 characteristics of a Prokaryote and Eukaryote cell.

Answers

1. Robert Hooke

2. The, now universally accepted, theory that all living organisms are made up of cells, cells are the basic structural unit of all organisms, and that cells come from pre-existing cells

3. Nucleus - a dense organelle present in most eukaryotic cells, typically a single rounded structure bounded by a double membrane, containing the genetic material | Vacuole - a space or vesicle within the cytoplasm of a cell, enclosed by a membrane and typically containing fluid | Cytoplasm - the material or protoplasm within a living cell, excluding the nucleus

4. Cell compartmentalization, Replication, Gene expression, and Processing of pre-mRNA

5. Plant cells have large central vacuoles, while animal cells have smaller separate ones. Plant cells have a cell wall, while animal cells don't

6. Homeostasis is the tendency toward a relatively stable equilibrium between interdependent elements, especially as maintained by physiological processes. Basic terms: Homeostasis is the maintaining of balance within an organism

7. Shivering in the cold is an example. Your muscles tense up to try to keep your body warm

8. Centrioles

9. DNA, Cell, and Cytoplasm

What are two decomposers that live in streams and rivers/freshwater biomes? Need for major grade. Give one hundred points, and Brainliest, but if you answer my question correctly, can you tell me how to choose Brainliest too? Thanks!

Answers

Answer:

Bacteria and fungi

Explanation:

Bacteria and certain fungi are found at the bottom of the rivers and lakes. They usually break down the dead organisms and plants.

Answer:

Bacteria and fungi

Explanation:

Bacteria and certain fungi are found at the bottom of the rivers and lakes. They usually break down the dead organisms and plants.

__________is the most important condition for fossilization.

Answers

wood tissue (witch in more detailed stans for shell, bone, and teeth)
The organism generally should have hard parts such as a shell, bones, teeth, etc. the remains must escape destruction after death, and the remains must be buried rapidly to stop decomposition. Animals with soft bodies are less likely to form fossils.

please help me answer this question

Answers

one, and then more than one

Answer:

one/more than one trait in the polar bear

Explanation:

Because it was talking about hair cells

Hey, I need to know what states each number and letter represents ASAP. Pretty sure this is on the Chesapeake Bay Watershed. No files please. Thanks!

Answers

i cant see a map to answer this
sorry :(
You should post a picture

PLSSSS HELPPPPPPPPPPPPPPPPPPPPPPPPPPPP

Answers

Answer:

A

Explanation:

Fertilizations occurs in the fallopian tube.

Point "a" is located where the fallopian tube is at

Hence, fertilization is most likely to occur at point A

Fertilization usually takes place in a fallopian tube that links an ovary to the uterus. If the fertilized egg successfully travels down the fallopian tube and implants in the uterus, an embryo starts growing.

What causes the air to spin?

a. Cold/dry air sinks below the warm/wet air and it is pushed upwards
b. The land around the tornado
c. A cloud reaches down from the sky
d. Warm/wet air sinks below the cold/dry air and it is pushed upwards

Answers

Cold dry air sinks below the warm wet air and it pushed upwards
Letter (A.)
d because the dry air gets mixed with the warm and wet air and causes this to happen tornado

Write a paragraph about the importance of the ocean.​

Answers

The ocean is important in many ways.The ocean is important because it produces half of the worlds oxygen and absorbs 50 times more carbon dioxide than our atmosphere.Basically we wouldn’t even be alive right now if it weren’t from the ocean.
The Ocean is the foundation of all life, an extraordinary and largely unexplored place, teeming with fascinatingly diverse plants and animals which, together with currents and natural systems, shape our planet. The Ocean provides us with food and facilitates pleasure, as well as livelihoods for millions, if not billions of people.

if one test tube is being heat up by a bunsen burner and connected to another test tube that is not being heat up. Why would there be a flatline at one of point of their boiling point?!

Answers

Answer:

.

Explanation:

.

What PHYSICAL characteristics occur during the digestive process?

Answers

Here is what I found hope it helps :)
When food is physically changed, mechanical digestion occurs. Food is broken into smaller parts and mixes continually with enzymes and other gastric juices. Mechanical digestion occurs in the mouth, stomach, and small intestine. Food is chemically changed in digestion when new, smaller substances are formed.

Rift valleys can form when fractures in Earth’s crust widen. The valley walls slowly move at a rate of only a few millimeters a year. Which of these best describes the type of tectonic activity that forms rift valleys?

Answers

Answer: When fractures in the earths crust widen

Explanation:

Describe how the water molecules acted in the ice tray in the freezer

Answers

Answer:

Water is held together by hydrogen bonds, the strongest of inter-molecular forces. This is where a hydrogen atom in one molecule is strongly attracted to an electronegative atom (in this case, oxygen) in the other. When enough energy is absorbed by H2O, the molecules vibrate so vigorously that these bonds are loosened, giving them space to bounce around. This forms the liquid we all call and consider “water”.

Explanation:brainlest plz?

The molecules are moving because they have energy so as the liquid cools down, the amount of energy is reduced and the molecules start moving slower. When the temperature of water reaches about 0°C, the molecules stick together and form a solid – ice.

What is Solidification?

When the ice cube tray which contains water in liquid state is placed in the freezer, it gets converted into solid ice cubes due to decrease in temperature and this process of changing liquid to solid state is called  solidification.

It is a phase transition where a liquid turns into a solid when its temperature drops below the freezing point. This established definition of freezing means the solidification of a liquid or liquid material of a substance by a phase change which occurs due to cooling.

Thus, the molecules are moving because they have energy so as the liquid cools down, the amount of energy is reduced and the molecules start moving slower. When the temperature of water reaches about 0°C, the molecules stick together and form a solid – ice.

Learn more about Solidification, here:

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PLZ ANSWER WILL BE MARKED BRAINLEST

Answers

Answer:

Iam not sure but I think it's position Y

The answer is Position X

There are more than 600 muscles in the human body. Your heart is a muscle. Muscles make you breathe and muscles hold you upright. Which of the following statements is correct?

Answers

Answer: 1& 2

Explanation:

If it is multiple choice it would be "there are more than 600 muscles in the human body" and "your heart is a muscle" It would be both because both statements are true - Good luck
2&3 they’re are almost exactly 600 and it said more so I believe it is 2&3

Summarize the functions of blood below by providing a description:
Protection
Transportation
And temperature regulation
If anyone could help me with this I say thank you!

Answers

Explanation:

Blood has various functions that are central to survival. They include:

supplying oxygen to cells and tissuesproviding essential nutrients to cells, such as amino acids, fatty acids, and glucoseremoving waste materials, such as carbon dioxide, urea, and lactic acidprotecting the body from diseases, infections, and foreign bodies through the action of white blood cellsregulating body temperature

Henry visits his aunt's house on Jacksonville Beach several times a year. He notices how much sand is between the ocean and the seawall in June. During July, there is a hurricane. In September, Henry notices that there is much less sand between the ocean and the seawall. What is the best explanation as to what happened to the sand?

A.
The wind from the hurricane destroyed the sand.

B.
The heavy rains from the hurricane packed the sand down.

C.
The hurricane created giant waves that washed away the sand.

D.
The hurricane damaged the sea wall, and the sand behind it washed away.

Answers

I think C. Or D. But probably C.

The loss of sand causes the beach to become narrower and lower in elevation (Figure 1). Storm waves carry the sand offshore, depositing and storing the sediment in large sandbars. In weeks and months following the storm, the sand is returned to the beach by calm-weather waves.

The beaches are water body that is characterized by the presence of sand barriers. The sand was reduced as the giant waves created by the hurricane, washed it away. Thus, option C is correct.

What is a hurricane?

Hurricane is a natural disaster also called a tropical cyclone that is characterized by a storm system with a center having low pressure and the surrounding strong winds with a spiral rotatory movement. This leads to heavy rain and winds.

The hurricane in the oceans causes giant oceanic waves to form, that comes to the seawall and take sand away with them. This leads to a decrease in the sand from the beach area. The waves wash the sand from the land, as the seawater is pushed on the seashore by heavy rains and storms.

Therefore, option C. hurricane washes the sand off the coast.

Learn more about hurricanes, here:

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Which of these statements BEST describes rocks ?


A. Rocks may contain one or more minerals

B. Rocks are made inside the Earth's mantle


HELP ASAP

C. Just like minerals, rocks have a definite shape

D. Rocks and minerals have a definite chemical composition

Answers

Answer:

C

Explanation:

hhhffy78hfyf_uuuyrdh7hfu fine jj yygh8yrt67

Answer:

D

Explanation:

Rocks and minerals have a definite chemical composition

what is the purpose of DNA?
A. manufactures proteins
B. reduces activation energy
C. stores hereditary information
D. to aid in facilitated diffusion
Please help me, and only answer if you know the answer. Thanks! :)

Answers

Answer:

c ok your welcome my friend

C because that’s how your genes and chromosomes cross

If you had shown mitosis in a plant cell instead of an animal cell, which feature would you have to change ?

Answers

i read that as "if you had shawn mendes"

I will give brainliest and thanks to the first person to answer! :) What were the econauts in the biodome doing with their dead matter and how is it connected to the decomposers?

Answers

Answer:

Explanation:

the Econauts constructed an ecosystem sealed under glass—a biodome. Recently, the group noticed an ominous decrease in the populations of organisms: the ecosystem appeared to be in the process of collapsing. The occupants were safely removed from the biodome, but the cause of the crash is still a mystery.


The econauts buried dead matter below 6 feet and dead animals in bags =
decomposers need oxygen to exist so they couldn't get to the dead matter that deep in the ground or the dead matter in bags.
Decomposers died =
decrease in cellular respiration

decrease in cellular respiration =
less carbon dioxide in the air
The cycle goes on

complete the sentence. The DNA strands are coiled around ________. This allows DNA to be packaged very efficiently.

a. proteins
b. other DNA molecules
c. chromosomes
d. nucleotides

Answers

Answer:

a. Proteins

Explanation:

Chromosomes are made up of DNA tightly coiled many times around proteins

Answer:

proteins I think I know its now D

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