Answer:
To preserve vegetation and soil fertility of land
Explanation:
.
A person with a low number of white blood cells could have difficulty in fighting infections and A decrease in the number of lymphoid stem cells could result in a decrease in red blood cell.
What is nucleotide?It is the sub units and buIlding blocks of DNA. It is made up of a five-sided sugar, phosphate group and then a nitrogen base.
These groups make the backbone of the DNA helix. If you look at a DNA helix, they make the side of the ladder or the side portion. They connect to a nitrogen base which make the steps of the ladder. The type of sugar that is used in a DNA helix is called deoxyribose.
Nitrogen bases are the molecules that make up the steps of the ladders. There are four different nitrogen bases, namely; Guanine, Thymine,Adenine and Cytosine.
Pyrimidines are compounds that make a single 6-sided ring. Examples of pyrimidines are Cytosine and Thymine. Purines on the other hand make 5-sided and 6-sided rings.
Therefore, A person with a low number of white blood cells could have difficulty in fighting infections and A decrease in the number of lymphoid stem cells could result in a decrease in red blood cell.
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which of the following kinds of organisms have prokaryotic cells?
a. fungi
b. plant
c. bacteria
d. animal
Answer:
C
Explanation:
Answer:
it would be bacteria.
Explanation:
I'll give you a brainliest if is right or at least shows some effort
(thanks & i hope your having a good day)
In your own words, explain how background noise detected in space provides evidence for the Big Bang Theory.
Answer:
Celestial microwave radiation found a strange microwave signal causing background noise in the radio telescope. The signal came from every direction. The young universe would have been very hot. The microwave background radiation is the remaining heat from the Big bang.
I tried my hardest and this is what I put on MY test so good luck
Carbon dioxide may be cycled back and forth between plants and animals.
True
False
Answer:
it is true!!
Explanation:
How are traces of ancient phytoplankton used to determine cooler and warmer water temperatures?
A. Chemical traces of phytoplankton that remain after millions of years are analyzed for data indicating water temperatures.
B. Climatologists analyze how much photosynthesis occurred after millions of years as an indicator of warmer water.
C. Large numbers of phytoplankton in fossil records after millions of years indicate warmer waters.
D. Fossil records indicate different species of phytoplankton prefer warm water to those that prefer colder water.
Answer:
c
Explanation:
i think
Answer:
A. Chemical traces of phytoplankton that remain after millions of years are analyzed for data indicating water temperatures.
Why does it rain more heavily on the windward side of mountain ranges?
A.Air masses absorb moisture as they increase in altitude, form clouds which precipitate rain.
B.Cool air on the lee side of the mountain encounters warm moist air from the windward side causing it to give up moisture.
C.Prevailing winds bring warm, moist air masses from sea level to high altitudes, cooling the air and causing rain.
D.Cool, moist air from the oceans warms over land and precipitates rain on the windward side of mountain ranges.
It rains more heavily on the windward side of mountain ranges because prevailing winds bring warm, moist air masses from sea level to high altitudes, cooling the air and causing the rain that is in Option C.
What are the prevailing winds?This is a type of wind that blows in a specific direction over a certain area, and its strength can be influenced by many factors, like the elevation of the land, temperature and pressure differences between air masses, earth rotation, etc. In a mountain range, the prevailing winds carry moist air to the top of the slope, where it cools and releases precipitation, that causes the rain.
Hence, it rains more heavily on the windward side of mountain ranges because prevailing winds bring warm, moist air masses from sea level to high altitudes, cooling the air and causing the rain that is in Option C.
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A certain species of rabbit can have either black or grey fur. The allele for black fur is dominant over the allele for grey fur. If a homzygous black rabbit is crossed with a heteozygous black rabbit, what phentypic ratio will occur in the first generation?
Answer:
A certain species of rabbit can have either black or grey fur. The allele for black fur is dominant over the allele for grey fur. If a homzygous black rabbit is crossed with a heteozygous black rabbit, what phentypic ratio will occur in the first generation?
A certain species of rabbit can have either black or grey fur. The allele for black fur is dominant over the allele for grey fur. If a homzygous black rabbit is crossed with a heteozygous black rabbit, what phentypic ratio will occur in the first generation?A certain species of rabbit can have either black or grey fur. The allele for black fur is dominant over the allele for grey fur. If a homzygous black rabbit is crossed with a heteozygous black rabbit, what phentypic ratio will occur in the first generation?
Explanation:
A certain species of rabbit can have either black or grey fur. The allele for black fur is dominant over the allele for grey fur. If a homzygous black rabbit is crossed with a heteozygous black rabbit, what phentypic ratio will occur in the first generation?
How does the ozone layer benefit life on Earth
Explanation:
it shields humans and other living things from ultraviolet rays
Mightn't I have some help?
Answer:
The carbon dioxide level is increasing because the trees in those forests used to take the carbon dioxide for photosynthesis.
Explanation:
What is the volume of a 13.4 g silver coin?
Answer:
im pretty sure it would be 13.4 g
Explanation:
HELP ME PLSSS someone
‼️PLEASE HELP THIS IS MY LAST HOPE
List 6 amino acids found in turkey meat. Explain how those amino acids could be formed into a protein including an explanation of translation and transcription.
"CRISPR" stands for Clustered Regularly Interspaced Short Palindromic Repeats, which are the hallmark of a bacterial defense system that forms the basis for CRISPR-Cas9 genome editing technology. In the field of genome engineering, the term "CRISPR" or "CRISPR-Cas9" is often used loosely to refer to the various CRISPR-Cas9 and -CPF1, (and other) systems that can be programmed to target specific stretches of genetic code and to edit DNA at precise locations, as well as for other purposes, such as for new diagnostic tools. How can this tool be used to alter genes in various organisms?
Answer:
by designing short guide RNAs (sgRNAs) customized to target genes of interest in the cells of these species
Explanation:
The CRISPR-Cas9 editing system is a versatile and powerful genome engineering tool for editing genomes, which can be directed to alter almost any DNA sequence in order to modify gene function. This system consists of an endonuclease protein (Cas 9) that cuts DNA at specific sites guided by a short guide RNA (sgRNA), which binds by base complementarity to the target sequence. This sgRNA must be designed with efficiency and specificity to target genes of interest. In consequence, the CRISPR-Cas9 genome editing system produces DNA double-strand breaks which may be repaired by 1- error-prone nonhomologous end joining (NHEJ) or 2-homology-directed repair (HDR) DNA repair pathways. According to the DNA repair pathway that has been activated, it is possible to trigger genetic modifications in the cells of different species (i.e., plant cells, animal cells, human cells, etc).
Identify these elements of photosynthesis.
Answer:
wait you already answered the question in the picture?
Explanation:
A hiker has become overwhelmed with heat while walking in the Grand Canyon. The hiker's body goes into overdrive to keep cool in the heat. The hiker needs to hydrate his or her cells. What process is used to regulate homeostasis?
A. Balanced equilibrium
B. Passive transport
C. Cellular transport
D. Hydration
what is a telescope in your own word plx thx
Answer:
A telescope is a device that you can use to take a closer look at things very far away. Most people use them to look at the stars or planets.
Hope This Helps!
A ``telescope`` is a device that is used to see things from afar, like planets, or starts in the sky.
------------------------------------------------------------------------Hope this helps!
While building a home, a family had to choose between granite and marble stairs. Which one would be more resistant to physical wear of foot traffic? EXPLAIN why this rock is more resistant. *
Answer:
Granite is harder than marble, so it is more resistant to chips and scratches.
Explanation:
Hope this helped!
Question 19 (1 point)
Which of the following is an example that includes evidence of a chemical reaction?
Answer:
sugar that is burned off gives an odor and turns brown and then black is a chemical change
Identify the tonicity of the solution surrounding the cell.
Answer:
Hypertonic
Explanation:
Hypertonic solutions have less water ( and more solute such as salt or sugar ) than a cell. Seawater is hypertonic. If you place an animal or a plant cell in a hypertonic solution, the cell shrinks, because it loses water ( water moves from a higher concentration inside the cell to a lower concentration outside ).
URGENT HELP PLZ ASAP!!!!! HELP!!!!!
Answer:
Poorly; his digestive system is not breaking down starch molecules into glucose.
Explanation:
His starch molecules are high while his glucose is low which means that his starch molecules are not breaking down into glucose.
What are the 3 main functions of this organ system?
Answer: Circulatory system, Cardiovascular system, and Digestive system.
Explanation:
Explain how ATP stores and releases energy
Answer:
The ATP molecule can store energy in the form of a high energy phosphate bond joining the terminal phosphate group to the rest of the molecule. In this form, energy can be stored at one location, then moved from one part of the cell to another, where it can be released to drive other biochemical reactions.
In a process called cellular respiration, chemical energy in food is converted into chemical energy that the cell can use, and stores it in molecules of ATP. ... When the cell needs energy to do work, ATP loses its 3rd phosphate group, releasing energy stored in the bond that the cell can use to do work.
Osmosis requires energy
True
Or
False
Answer:
Diffusion and osmosis don't require the cell to expend any of its own energy, as they are passive processes. As we know both are passive processes and yet (in basic, short terms) diffusion is higher to lower and osmosis is lower to higher, so movement to concentration doesn't determine whether it is active or passive.
Explanation: ur welcome
what organelles are used in passive and active transport
Molecules can diffuse across membranes via transport proteins, or they can be aided in active transport by other proteins. Organelles such as the endoplasmic reticulum, Golgi apparatus, mitochondria and peroxisomes all play a role in membrane transport.
you get brainliest if you answer right
Answer:
Br, Zn, Sc, Ca, K
Explanation:
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Which of the following is NOT true of plants?
A
Plants help remove some toxins from the air.
B
Some plants pollinate with help from the wind.
С
Plants remove carbon dioxide and release oxygen into the air.
D
Plants remove oxygen and release carbon dioxide into the air.
Answer:
D
Explanation:
Answer:
D
Explanation:
through which of these medias do sound travel most slowly a.water b.wood c.iron d.air
BIOLOGY, I need help on this one
This is a base deletion
I really just don’t understand this
Answer:
Capital letter- Element
Explanation:
Please help. Quick. Will give Brainliest!!
Answer:
Explanation:
plantlike protist
Make a list of different weather patterns
Weather comes in all different forms, and it changes by the day. It could be sunny one day and raining the next. It could even be sunny, rainy, cloudy, and stormy in one day.
Common Types of Weather Elements
The weather has a lot of different factors. When someone asks how the weather is today, you need to think about temperature, humidity, precipitation, wind, cloudiness, and atmospheric pressure. All these different parts work together to create the weather you see when you walk out the door.