Answer:
yes they form capillaries
The question is the primary producer in this ecosystem is the -
Answer:
Its plant
Explanation:
what changes were most likely caused by a shift in earth's continents?
Answer:
The earth’s crust is broken into separate pieces called tectonic plates (Fig. 7.14). Recall that the crust is the solid, rocky, outer shell of the planet. It is composed of two distinctly different types of material: the less-dense continental crust and the more-dense oceanic crust. Both types of crust rest atop solid, upper mantle material. The upper mantle, in turn, floats on a denser layer of lower mantle that is much like thick molten tar.
Each tectonic plate is free-floating and can move independently. Earthquakes and volcanoes are the direct result of the movement of tectonic plates at fault lines. The term fault is used to describe the boundary between tectonic plates. Most of the earthquakes and volcanoes around the Pacific ocean basin—a pattern known as the “ring of fire”—are due to the movement of tectonic plates in this region. Other observable results of short-term plate movement include the gradual widening of the Great Rift lakes in eastern Africa and the rising of the Himalayan Mountain range. The motion of plates can be described in four general patterns:
<p><strong>Fig 7.15.</strong> Diagram of the motion of plates</p>
Collision: when two continental plates are shoved together
Subduction: when one plate plunges beneath another (Fig. 7.15)
Spreading: when two plates are pushed apart (Fig. 7.15)
Transform faulting: when two plates slide past each othe
Explanation:
tại sao lại có sấm sét
Khi hai đám mây tích điện trái dấu lại gần nhau, hiệu điện thế giữa chúng có thể lên tới hàng triệu vôn. Giữa hai đám mây có hiện tượng phóng tia lửa điện và ta trông thấy một tia chớp. Vài giây sau ta mới nghe thấy tiếng nổ, đó là sấm (do vận tốc ánh sáng nhanh hơn vận tốc của tiếng động nên ta trông thấy tia chớp trước). Khi đám mây dông tích điện đi gần mặt đất tới những khu vực trống trải, gặp một vật có độ cao như cây cối, người cầm cuốc xẻng… thì sẽ có hiện tượng phóng tia lửa điện giữa đám mây và mặt đất. Đó là hiện tượng sấm sét.
In the process of DNA replication, bonds are broken between:
A. sugars
B. sugars, bases
C. phosphate, bases
D. bases
In the process of DNA replication, bonds are broken between D. bases
DNA ReplicationDNA is replicated by uncoiling of the helix, strand separation. It is possible by breaking the hydrogen bonds between the complementary strands. It forms two new strands by complementary base pairing.
Both strands are joined by hydrogen bonds between nitrogenous base
nitrogenous bases could be: A-T or G=C
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Answer:
D. Bases
Explanation:
How have humans changed the global nitrogen cycle?
A. They have greatly decreased the amount of fixed nitrogen.
B. They have raised the speed at which nitrogen travels through the
cycle.
C. They have lowered the speed at which nitrogen travels through the
cycle.
D. They have greatly increased the amount of fixed nitrogen.
Answer:
D
Explanation:
Humans activities, such as making fertilizers and burning fossil fuels, have significantly altered the amount of fixed nitrogen in the Earth's ecosystems.
Which is a function of the cardiovascular system?
to move water
to eliminate waste
from the body
to provide structural to transport gases
support for the body throughout the body throughout the body
Music of
Hey, I need help with biology. Thanks.
Answer:
I think it's d
Explanation:
I might be wrong and if so I'm sorry
What is the name and function of the structure indicated by A?
what is method of magnetic separation
Explanation:
Magnetic separation is a method of waste management where magnets are used to separate metal from refuse. This is most common in single and mixed streams of recycling as the materials are collected together and separated before processing.
The wing of a bat and the arm of a human have similar bone structures but are used for different functions; these are called
Answer:
Homologous structures
Explanation:
Homologous structures refers to structural elements or organs in animals that are similar together or have similar features and indicate their connection to the same ancestry origins but the structures serve different functions in the animals. An example is what was listed above.
please answer all :)
Answer:
i) Rusting occurs the least in tubes 2 and 3 because either of air and water which are necessary for rusting is absent in the two tubes respectively.
ii) Rusting occurs most in tube 1 because both air and water which are necessary for rusting are present.
Explanation:
Rusting is a chemical change which involves a redox reaction. During the process of rusting, metallic iron is oxidized to hydrated iron (iii) oxide by oxygen present in air.
For rusting to take place effectively, each of these three factors mist be available: metallic iron, oxygen and water.
In the figure above, the iron nails in the three tester tubes will rust to different extents based on the availability of the three factors.
In test tube 1, the iron nails will rust the most because all the three factors: metallic iron, oxygen present in air, and water are abundantly present.
In test tube 2, the iron nails will rust the least or not at all because boiling of water removes dissolved oxygen from water and the oil layer above the boiled water prevents entry of oxygen from air. Thus, the nail do not rust because one of the three factors for rusting to take place, in this instance, oxygen is absent.
In test tube 3, the iron nails rusts the least or not at all as well because moisture or water is absent. Calcium chloride, a drying agent removes all the moisture from inside the tube. Hence, even though air is present, rusting do not occur as there is no moisture or water present.
Tim and Jan have freckles but their son Mike does not have. Show with a punnete square how this is possible. Tim and Jan have two more children, what is the probability that both will have freckles?.
Answer:
Parents are heterozygous for the trait, and this is how they got a child with no freckles.The probability that the two other children will have freckles is 9/16Explanation:
Due to technical problems, you will find the complete explanation in the attached file.
Which phrase describes the relative age of a rock?
Answer:
Uses the law of superposition to determine which rock is older or younger.
Explanation:
Relative age refers to the age of the rock when compared to other rocks. The law of superposition was developed by Nicholas Steno. In this process, you determine which rock layer is older or younger in terms of the sequence they were laid out or layers were formed. This law states that the lower the layer, the older the rock layer is as compared to those on top of it.
Label the following topographic map. Click on a label below the map to select it, and then click on the appropriate box on the map to place the label. (Increments for contour lines is 50 feet).
Choices:
River Flow East
Depression
2650 feet
Sleep Area
Based on the information, it can be inferred that the concepts are organized from left to right as follows: Depression, Sleep area, River Flow East, and 2650 feet.
How to identify the correct space for each concept?To locate each concept in the correct space we must know how to read a topographic map. In this case, the depression would be the first concept because in the shaded area the contour lines are shown very close, this is generally related to a depression area in which the slope is very pronounced.
On the other hand, the sleeping area is at the top of the mountain at the bottom of the image because a flat region is shown on the top of the mountain.
Additionally, the blue line through the topographic map represents a river so this could be labeled River Flow East. Finally, the contour line that is at 2650 feet high would be the last space considering that each line represents an increase (or decrease) of 50 feet.
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im so done. i just got a 60 on my final exam.
why am i such a failure
my parents are gonna take everything away from me even though i tried my hardest
i'm sorry you feel that way. i hope you well, stay strong:,)
The end result of technology is best described as:
O A. the result of a type of scientific experiment.
O B. the growth of new political ideas through science.
O C. controversial new ideas questioned by society.
O D. products or processes that help solve problems.
Answer:
D. products or processes that help solve problems.
Explanation:
What word is used to describe plant cells placed in a hypotonic solution?
Answer:
The answer is Plasmolysis
The word that is used to describe plant cells placed in a hypotonic solution is known as Turgidity.
What is a Hypotonic solution?A Hypotonic solution may be defined as a type of solution that significantly has osmotic pressure lower than that of another solution to which it is compared. This type of solution normally contains a lower amount of solute.
According to the context of this question, when a plant cell is placed in a hypotonic solution, water will flow through it by the process of osmosis from the solution into the plant cell. This leads to cause the cell to expand or swell. But as the cell wall of the plant is very rigid, it keeps the cell from bursting.
Therefore, the word that is used to describe plant cells placed in a hypotonic solution is known as Turgidity.
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What is one advantage of sexual reproduction?
A. offspring show more genetic variation
B. offspring are identical to parents
C. offspring need only one parent
D. more offspring are born
Answer:
B
Explanation:
Organisms produced by sexual reproduction have two parents and are genetically similar to both but not identical to either. it produces variation in the offspring. the species can adapt to new environments due to variation, which gives them a survival advantage.
Exercise Multiple Choice Question 1. A cell has mitochondria, centrosome with centrioles, nucleus and other cell organelles. Based on this information, this cell could be a cell of A. an apple B. a yeast. C a cat. D a flower.
Answer:
Cat
it contain centrioles which is present in animal cell
What contains the instructions that tell a Cell what functions to perform?
Answer:
The nucleus contains nearly all the cell's DNA and with it the coded instructions for making proteins and other important molecules.
The nucleus contains the instructions that tell a cell what functions to perform.
What is a nucleus?In terms of genomics, a nucleus is an organelle within a cell that is membrane-enclosed and houses the chromosomes. The nuclear membrane has a variety of pores that enable the selective passage of specific molecules (such as proteins and nucleic acids) into and out of the nucleus.
The largest organelle in a eukaryotic cell, the nucleus, is thought to be the cell's command center. The majority of the cell's DNA, which makes up the chromosomes and is encoded with the genetic instructions needed to build proteins, is found in this region.
Therefore, Nearly all the cell's DNA, along with the coded instructions for constructing proteins and other significant components, is found in the nucleus.
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‼️⁉️need answer ASAP ‼️⁉️What is NA2S04? An acid. A base a salt. An ion
Answer:
An ion
Explanation:
8. The process that occurs only in the small intestine to increase the absorption of
food and nutrients by mixing food.
A. Digestion
C. Absorption
B. Peristalsis
D.
Answer: C. Absorption
Explanation:
Hope it helps if not sorry
good thinks about space travel being done with private businesses
Answer:
I don't think is plausible and well encouraged as it wastes cost which is not easy to earn by companies
You are an aquatic biologist studying a small lake. The stream that drains into this lake runs by croplands. You are detecting a pesticide called atrazine in the insects and worms that live in the lake. The predatory birds such as herons and egrets have very high concentrations of atrazine in their blood. The birds prey on the frogs and small fish. What condition best explains the high atrazine level in the birds?
The condition best explains the high atrazine level in the birds is biological magnification. The correct option is D.
What is biological magnification?Biological magnification is the occurrence of any chemical in the body of a living organism than in outer space or the environment. The chemicals can be toxins or pesticides. They are present within the tolerant level in the tissue.
Here, the atrazine level is high in frogs and small fish than in the surrounding water, which is going in birds.
Thus, option D. biological magnification is correct.
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Classify the chemical equations as being balanced or not balanced.
Answer:
a balanced equation can be seen when number of moles of a certain atom on the right hand side equals to number of moles of that atom on the left hand side
Answer:
I hope this helps
Explanation:
is a collective human effort to comprehend, or better understand, the history of the natural world and how it works, through physical evidence collected via observations.
Oxygen has an atomic number of 8. The n=1 energy level has two electrons, and the n = 2 energy level has six electrons. Oxygen's valence is _______.
● +2
● -2
● +1
● -1
Answer:
Oxygen's valence is +2
the answer is +2
I hope this helps
Answer:
● -2
Explanation:
Oxygen needs to gain 2 more electrons to have 8 electrons in outer most shell (octet rule). Gaining electrons makes you negative thus, oxygen gains 2 electrons and has valence of -2.
deepali here!!!
What is precipitation reaction???
Answer:
When 2 or more liquids chemically combine to form a solid
Explanation:
During respiration, animals excrete it as a gas known as
Answer:
carbon dioxide
hope it helps
The invention of the microscope led to the discovery of the cell by Robert Hooke. While looking at cork, Hooke observed the box-shaped structures, which he called "cells" because they reminded him of the cells (rooms) found in monasteries. This discovery led to the development of the cell theory. Credit for developing the cell theory is usually given to two scientists. Theodor Schwann and Matthias Schleiden. The cell theory was then proposed by Theodor Schwann in 1839. There are three parts to this theory: living organisms are made up of cells, cells are the basic structural unit of all organisms, and all cells come from pre-existing cells. Which of these is supported by the tenets of the cell theory? Select ALL that apply. les )) A) Energy flow occurs within cells. B) Mitosis produces identical daughter cells. C) Living organisms can be unicellular or multicellular. D) DNA is copied and passed between cells during cell division. E) Single-celled bacteria grow and then divide in half to make new bacteria.
Living organisms are made up of cells, cells are the structural unit of all organisms, cells come from pre-existing cells Energy flow occurs within cells.
What are the main points of cell theory?The main points of cell theory are:
All living things are made up of cells.Cells are the raw building blocks of life.All cells come from preexisting cells through the cycle of cell division.Energy flow occurs within cells.Thus, cells come from pre-existing cells Energy flow occurs within cells.
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