On the surface of a plant's roots are thin projections called root hairs. Which of the following best describes the purpose of these root hairs?
They provide protection for the growing roots.
They help anchor the plant to the soil to make it sturdier
They store excess sugar produced during photosynthesis.
They allow for an increase in surface area so more water and nutrients can be absorbed.
Answer:
second one is the best which describes roots
The main function of root hairs is to absorb water and minerals from the soil.
What is the function of root hairs?The function of root hairs is to absorb water and nutrients from the soil and it sent to the upper parts of the plant. In roots, most water absorption happens through the root hairs.
So we can conclude that the main function of root hairs is to absorb water and minerals from the soil.
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what is a sifaka and how are they an endangered species
Answer:
A sifaka is a lemur of the genus Propithecus from the family Indriidae within the order Primates.Habitat loss and poaching are probably the major factors that contribute to this species decline.
Explanation:
Hope this helped Mark BRAINLEST!!!
What are three ways used to describe organisms such as humans
Answer:
heterotrophs, tertiary consumers and top carnivoresExplanation:i toke the test
The stars appear to move across the sky every day, but
their paths change throughout the year. Here is a model of
the Sun-Earth system.
Based on the model, which three factors might cause this change in the
apparent movements of the stars?
Answer:
Earth's Revolution around the sun, The tilt of Earth's Axis, and Earth's rotation on its axis.
Explanation:
I have done this test
1. The Earth's revolution around the Sun: As the Earth revolves around the Sun, the stars appear to move across the sky each day. This is because the Earth is rotating on its axis, which causes the stars to appear to be moving from east to west.
2. The Earth's tilt: The tilt of the Earth's axis also has an effect on the apparent movement of the stars. As the Earth rotates around the Sun, the tilt of the Earth's axis changes throughout the year. This causes the stars to appear to move slightly differently at different times of the year.
3. The Precession of the Equinoxes: The precession of the equinoxes is the gradual wobble of the Earth's axis which takes place over thousands of years. This has an effect on the apparent movement of the stars, as the angle of the Earth's axis changes over time. This causes the stars to appear to move in a slightly different pattern than they did thousands of years ago.
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Crossing-over and nondisjunction take place during the process of
1.mitosis
2.meiosis
3.internal fertilization
4.binary fission
Someone help please and thank you
Answer:
2.meiosis............
If the DNA molecule is only composed of four possible nitrogen bases, how can thousands of different proteins be formed from such a limited set of fixed shapes?
Answer:
nucleotides are only building blocks whose combinations determine different codons which subsequently associate in a sequential manner in order to create different amino acid combinations
Explanation:
A gene is a specific segment of DNA whose (nucleotide) sequence is copied into an RNA during the process of transcription, typically a messenger RNA (mRNA) molecule which is subsequently used to synthesize a protein. During translation, each triplet of nucleotides, i.e., each codon, corresponds to a specific amino acid. There are 64 possible codons (4³: 64), which can combine in different ways to create different amino acid combinations, and thus they are responsible for the generation of a huge amount of proteins coded by a given genome.
Choose all the answers that apply.
Oxygen is _____.
released into the air by the lungs
pumped to cells by ventricles
picked up in the alveoli
transported by blood
Answer:
it is a i think not for certain
Explanation:
Which organelle is considered the control center of the cell or the "brain" of the cell? It contains all the DNA or the instructions to carry out the function of the cell??
Answer:
The nucleus
Explanation:
The nucleus of eukaryotic cells is the "control center". It contains DNA which tells the cell how to function.
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If a mosquito cell had 3 chromosomes, would that cell be a diploid or haploid?
Answer:
If the cell had 3 chromosomes, it would be haploid.
Which one is the true answer
If the oceans of the earth got warmer from global warming, would the water of the oceans become more or less salty?
Answer:
Global warming is making the sea more salty, according to new research that demonstrates the massive shifts in natural systems triggered by climate change. Using state-of-the-art climate models, the scientists simulated events over both parts of the ocean with and without increased levels of greenhouse
list and explain the socio-economic factors that could be considered for career and study choices.
Answer: qsy yo no soy adivina
Which of the following is NOT an example of a physical change?
Answer:
Solution : Combustion of Liquefied Petroleum Gas (LPG) is a chemical change. Because it is an irreversible reaction and new products, carbon dioxide and water vapour are formed and lot of heat is also produced during the reaction.
Juanita fills the tank with water so that it is 1 foot deep. What is the volume of the water?
Fossils of the Dorudon, an aquatic mammal that lived over 40 million years ago, show a whale-like animal that had small underdeveloped hind limbs.
Which best explains how fossils like the Dorudon support the theory that plant and animal life has evolved over time? (SC 7.L.15.2
They confirm that many animals have not evolved
O They confirm that many animals have not evolved
ооо
They prove that all animals evolved from a single ancestor
They demonstrate that animals that don't evolve will die out
Answer:
??
Explanation:
What is the answer cuz i am doing to test rn
Answer:
they prove that animals evloved from a sinle anncestor
PLS VOTE BRAINLIEST
how Greenhouse gases in the atmosphere impact Earth’s global climate
Answer:
They impact it by heating up the atmosphere by trapping heat
What is the name of the type of reaction that occurs when two substances join to form a single product?
Answer:
Synthesis reaction
Explanation:
hope this helps
Answer:
synthesis reactionExplanation:
A synthesis reaction occurs when two or more reactants combine to form a single product.
what must a cell have enough of in order to complete cell division?
Answer: it must grow, copy its genetic material (DNA), and physically split into two daughter cells.
Explanation: :)
what atom is similar to H
What are 3 organisms that are found in the same phylum as euglena gracilis?
Euglena is a large genus of unicellular protists: they have both plant and animal characteristics. All live in water, and move by means of a flagellum. This is an animal characteristic. Most have chloroplasts, which are characteristic of algae and plants
In the walls of the heart, two layers of tissue form a sandwich around a thick layer of muscle called the ______________________.
Answer:
myocardium
Explanation:
makes up the middle and thickest layer of the heart wall.
The parts of the female reproductive tract normally include to ovaries to uterine tubes a single pair shaped uterus and a single vagina. Gamete production is the responsibility of the ovaries whereas protection and nourishment of growing embryo and fetus before birth and functions of the uterus the two Tubes known as fallopian tubes one from each ovary provide pathways for the female gamete (eggs) to get from the ovaries to the uterus.
Referred to the figure provided identify the structure where fertilization occurs.
#2
#4
#3
#1
Answer:#1
Explanation:
Using this information and rge geologic time scale above, choose the period in which fishes with jaws first appeared.
A. Jurassic
B. Silurian
C. Quaternary
D. Cretaceous
If there is no external force on a moving object it will
Select the methods and results that best illustrate sustainable crop intensification.
GMO drought-tolerant seeds
low pesticide use
high-yield, low ecological impact
heavy use of irrigation
low cost
high cost
high use of synthetic fertilizer
high labor
Answer:
GMO drought-tolerant seeds, high use of synthetic fertilizer, high-yield, low ecological impact.
Explanation:
Crop rotation is one of the most powerful techniques of sustainable agriculture. Its purpose is to avoid the consequences that come with planting the same crops in the same soil for years in a row. It helps tackle pest problems, as many pests prefer specific crops.
Explain why reptiles and birds are placed in the same clade.
Answer:
because they both have jaws, lungs, and claws or nails and they include some of the same common ancestors.
Explanation:
location, structure, function of xylem tissue
Answer:
The xylem is located in the root, stem and the leaves of a plant.
The xylem contains dead cells arranged end-to-end forming continuous vessels. They have a hollow central space (lumen) through which water passes. They walls contain lignin.
The xylem carries water and minerals, up from the roots to the rest of the plant.
Pl help it’s for a grade
Answer:
A
Explanation:
A
Answer:
i think a
Explanation:
sorry if wrong
PLEASE HELP!.............
Answer:
Insect larvae and shrews
Between a phylum, kingdom, order and family, which would be the MOST
Canspecific level of classification?
A.Family
B.Phylum
C.Kingdom
D.Order
Answer: phylum i hope i speled that right
Explanation: The most general category in taxonomic classification is domain, ... by subsequent categories that include phylum, class, order, family, ... The kingdom Animalia stems from the Eukarya domain.