Answer:
The Xylem
Explanation:
The Xylem strengthens and supports the stem. It transports water and minerals from the root system to the leaves.
HELP PLS Using the picture below, which wave would have a higher pitch.
Answer:
may the above one i guess...i dont know
Plant cells have some organelles that animal cells do not. Check all organelles that ONLY plant cells have.
A
chloroplast
B
nucleus
C
cell membrane
D
cytoplasm
E
cell wall
F
mitochondria
Answer: Plant cells only have chloroplast and a cell wall. Which is A and E.
Describe temperate continental climates.
3. Which of the following types of molecules is found in genetic material?
A.cellulose
B.enzymes
C.lipids
D.nucleic acid
Answer:
D. Nucleic acid
Explanation:
There are two types: DNA and RNA
DNA stands for Deoxyribonucleic acid
RNA stands for ribonucleic acid
More than 90% of measles infections occurs in children under ____ years old.
Answer: More than 90% of measles infections occurs in children under 15 years old.
Hope this helps
Explain the difference between homology and analogy using a wolf, a whale, and a shark:
Answer:
Explanation:
Analogy refers to traits or structures like body shapes, fins which evolved independently that are similar in organisms that are not related by the same common ancestor. For example dolphins and shark have similar body structures like fins but they are unrelated. Whale and shark too. Whales are mammals, sharks are fish.
Homology refers to traits or structures
posses by organisms that are related by common ancestors. Example wolf and whales.....they are both mammals.
ACTIVITY 2: NOW I KNOW!
Directions: Complete the paragraph using the word pool provided. Write the word in your long pad.
MIRROR
OBJECTIVES
PENCIL
MAGNIFICATION
EYEPIECE
INVERTED
GLASS SLIDE
COVER SLIP
10X
FIELD OF VIEW
40X
UPWARD
The microscope is an essential tool in Biology. It provides us with important data on specimens being examined.
The (1) has various magnification (5x, 10x, 12.5x, 15x) which attaches to the body tube. On the other hand, the
revolving nose piece are attached by (2) with 10x, 40x and 100x magnifications.
In preparing a wet mount, place the specimen in a (3)
add a drop of water and cover it with a (4)
Tap the cover slip with the eraser-end of a (5)
to reduce the formation of the bubbles.
Look at the eyepiece and adjust the (6) to find the (7) of the microscope which is the bright circle
of light. The (8)
of specimen is computed by multiplying the magnification of the Eyepiece with the
magnification of the Objectives. If the eyepiece has a magnification of 10x and the Objective has (9)
then
the specimen's magnification is 400x. In addition, turning the stage knob upward will result to moving the specimen as
seen in the microscope downward while turning the stage knob to the left will move the specimen to the right as seen
under the microscope. Finally, the specimen when seen under the microscope appears (10)
Answer:
The correct answer would be -
1.) objectives
2.) eyepiece
3.) glass slide
4.) coverslip
5.) pencil
6.) mirror
7.) field of view
8.) magnification
9.) 40x
10.) inverted
Explanation:
Objectives of the microscope have magnification (5x, 10x, 12.5x, 15x) which attaches to the body tube. The nosepiece is found between the stage and the eyepiece or ocular lens. Glass slide is the slide where a specimen is placed for the study and covered with a coverslip, bubble should be avoided while placing the coverslip.
Mirrors need to adjust to seeing the field of view by adjusting the light. After computing the magnification there would be a final image of the specimen that would be inverted due to the two lens used here.
HELP!!!! Restriction maps illustrate the lengths of DNA fragments between restriction sites. Which of the following information can be gathered from the analysis of restriction maps? Select ALL that apply.
A) gene sequence
B) nucleotide sequence
C) presence of mutations
D) disease identification
What is the function of the leaves of a plant?
A: to absorb food
B: to absorb light
C: to produce seeds
D:to produce flowers
Who was similar to the cheddar man?
If a rock has a mass of 42 grams and a volume of 6 ml, what is its density?
Steps:
m = V × ρ
= 6 milliliter × 42 gram/cubic meter
= 6.0E-6 cubic meter × 42 gram/cubic meter
= 0.000252 gram
= 2.52E-7 kilogram
Examples of Homogeneous & Heterogeneous Rocks!
(Pls help, thxs)
Answer:
mixtures of sand and water or sand and iron filings, a conglomerate rock, water and oil, a salad, trail mix, and concrete (not cement). A mixture can be determined to be homogeneous when everything is settled and equal, and the liquid, gas, the object is one color or the same form.
Explanation:
Which of the following is a reason a cell may divide:
A- The cell has become damaged
B- The cell wants to divide
C- Both a and b
D- Neither a nor b
Cells require a structure that regulates the transfer of material in and out of the cell. This structure is the –
Cells require a structure that regulates the transfer of material in and out of the cell, and this structure is the cell plasma membrane, as substances can go in or out of the cell such as oxygen, water, etc.
What is the purpose of the cell plasma membrane?The cell plasma membrane's purpose is to protect the cell from outside materials such as matrix proteins, pathogens, and so on, as well as to give the cell the proper shape and size, and at the same time it consists of many channels, pumps, etc. Through the channels, the substance can flow in and out of the cell plasma membrane, and the energy may or may not be needed for the movement.
Hence, cells require a structure that regulates the transfer of material in and out of the cell, and this structure is the cell plasma membrane, as substances can go in or out of the cell such as oxygen, water, etc.
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Describe coriolis effect
Answer: The Coriolis effect describes the pattern of deflection taken by objects not firmly connected to the ground as they travel long distances around Earth.
Explanation: It on googIe and hope it helps
Answer:
In physics, the Coriolis force is an inertial of fictitious force that acts on objects that are in motion within a frame of reference that rotates with respect to an inertial frame.
The theory of continental drift
1.was based on the distribution of rock types, fossils and structures.
2.was accepted by most geologist during Wegener's lifetime.
3.was based on oceanic fossils and basalt.
4.suggested that the original land forms were large islands.
Answer: 1. Was based on the distribution of rock types, fossils, and structures.
Explanation: Good luck! :D
How could an asteroid impact have led to the extinction of dinosaurs?
Answer:
The asteroid crashed into the earth and made some water bodies violent
it is said that the asteroid was super huge and was capable of causing volcanoes, tsunamis, etc which took place all over the earth and extincted dinosours. But it is a little surprising that crocodiles who were also found at that time survived all this
Answer:
Probably the asteroid caused natural calamities
TRUE or FALSE?
All of the carbon in existence is cantinually recycled in the carbon cycle.
False
True
Answer:
The correct answer is true.
Answer: B. True
Reason:
Hope this helps
WHOEVER ANSWER THIS PROBLEM WILL EARN BRAINLIEST!!
Which characteristics are common to most salamanders? Check all that apply.
They undergo internal fertilization.
They lose their tails as adults.
They have wet, moist skin.
They have long, strong legs.
They begin life with gills.
Answer:
c, d, and a
Explanation:
dhdhdjfnjajksnsjdjsjajak
Answer:
They undergo internal fertilization; they have wet, moist skin; they begin life with gills
Explanation:
S. If cells of onion peel and RBC are separately kept in hypotonic solution, what will take place? Explain the reason for your answer
Answer:
Well for the onion peel, since its a plant cell...it shall gain water from the solution as it has a lower water potentail,and hence increase in size, becoming turgid and tight, with the cell wall exerting pressure to stop it from bursting.
For the RBC, its an animal cell, and shall also gain water, but since there is no cell wall to support it, it shall soon gain so much water that it shall burst becuase of the pressure, through lysis, and shall die.
Note, the plant cell does not die.
Measurement of overall change in position.
Answer:
Velocity (Rate of change of position)Velocity is a vector quantity that is defined as the rate of change of position of an object with respect to a frame of reference with respect to time. Velocity is equivalent to the speed of the object along with the direction of motion.Hope this is fine for youAnswer:Displacement
Explanation:Displacement is the change in position of an object. The SI unit for displacement is the meter. Displacement has direction as well as magnitude. Distance traveled is the total length of the path traveled between two positions.
In pea plants, yellow seeds are dominant over green seeds. What would be the
expected genotypic ratio in a cross between a plant with green seeds & a plant that
is heterozygous for yellow seed color?
A. 1:1
B. 1:3
C. 1:2:1
D. 4:1
The expected genotype ratio is 1:3.
The genotype of an organism is the sum total of the gens that the organism received from its parents. The genotype determines the traits of an organism (phenotype).
Let the dominant gene be R and the recessive gene be r then we have a cross between RR and Rr. The expected genotype ratio is 1:3.
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what features are environmental?
Answer:
Temperature, food, pollutants, population density, light and sound
Earthy, shiny, waxy, metallic, and pearly are terms used to describe a mineral's luster.
What might a scientist observe about a mineral that would help the scientist classify the
luster as metallic?
We have that for the Question it can be said that
Shinny minerals a conclusion of reflective properties will be madeIf the mineral is smooth and looks like glassThese properties of the luster might help the scientist classify the luster as metallic.
From the question we are told
Earthy, shiny, waxy, metallic, and pearly are terms used to describe a mineral's luster.
What might a scientist observe about a mineral that would help the scientist classify the
luster as metallic?
Generally
Shinny minerals a conclusion of reflective properties will be madeIf the mineral is smooth and looks like glassTherefore
These properties of the luster might help the scientist classify the luster as metallic.
Shinny minerals a conclusion of reflective properties will be madeIf the mineral is smooth and looks like glass
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If the Carbon-14 found in a mastodon tooth went through 8 half lives, how old is the tooth? To help find the answer, use 5,000 years for the half life of Carbon-14. 8,000 years old 14,000 years old 30,000 years old 40,000 years old
Answer:
The age of the mastodon tooth is about 40000 years.
Explanation:
The presence of carbon-14 decreases exponentially in time. Let consider half-life of Carbon 14 in 5000 years. If the mastodon tooth went through 8 half lives, then we estimate its age in 40000 years.
The age of the mastodon tooth is about 40000 years.
PLEASE HELP I'll love you forever
This is a picture of step 1 of protein synthesis. What happens in this step?
A. DNA is copied and then the new DNA strand leaves the nucleus and goes to the ribosome
B. DNA is copied to mRNA. The mRNA then leaves the nucleus and goes to the ribosome
C. RNA is copied and then goes to the nucleus tobring the code to the DNA
Compact Bone is hard and dense but, it is not solid. It is filled with holes and has small canals for blood vessels and nerves.
True
or
not?
The compact bone is hard and dense, but it is not solid; it is filled with holes and has small canals for blood vessels and nerves, which is a true fact as the compact bone is one of the dense bones present in the body.
What is the significance of compact bone?Compact bone is a dense, hard bone tissue that provides structural support and protection to the body, and it is also involved in the storage of minerals, such as calcium, which is important for the strength and density of bones. Haversian canals are present in the compact bone and contain blood vessels, nerves, and other tissues that support the bone.
Hence, compact bone is hard and dense, but it is not solid; it is filled with holes and has small canals for blood vessels and nerves, which is a true fact as the compact bone is one of the dense bones present in the body.
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Review the Protein to Trait Example. How did the differences in proteins lead to different traits for this feature?
Answer:
Proteins are responsible for shaping and growth of an organism.
Explanation:
The differences in proteins lead to different in traits because it is the protein that determines the trait. The gene's sequence is like language that instructs cell to manufacture a particular protein that is necessary for the growth and development of the organism. These proteins shaped the structure of organisms so we can say that difference in traits occur due to difference in their proteins.
The cells in your body need nutrients and other materials to stay alive. To be used by your cells, the materials must be
How many times longer is DNA than it is wide?
Answer:
About 200 km 7.
DNA is approximately six times longer than it is wide after measurements.
DNA is a 2-nanometer-diameter double-stranded molecule. Rise per base pair is 0.34 nanometers. Divide length by width to calculate length-to-width ratio. The length-to-width ratio is 6:1 due to DNA's stable diameter and base pair distance. DNA is six times longer than broad.
DNA stores and encodes genetic information efficiently in this elongated shape. DNA molecules can range from a few hundred base pairs in bacterial genomes to millions or billions in sophisticated animals. DNA stores and transmits life's genetic blueprints because it's longer than it is wide.
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