Answer:
A
Explanation:
4. Why are rattlesnakes necessary to the balance of life in a forest?
They eat rodents and are eaten by owls and hawks.
They are not useful to the balance of life and are dangerous to humans.
They compete with raptors for the same food source.
They eat insects which and are then eaten by raptors.
The rattlesnakes are necessary to the balance of life in a forest as they eat rodents and are eaten by owls and hawks. Therefore, option (A) is correct.
What are the characteristics of rattlesnakes?Venomous rattlesnakes belong to the genera Crotalus and Sistrurus, which are members of the subfamily Crotalinae. All poisonous snakes are snakes.
Rattlers are profoundly particular, venomous reptiles with huge bodies and triangle-molded heads. Because of their distinctive "rattle" at the tip of their tails, they are one of the most well-known groups of snakes.
Rattlers are tracked down in pretty much all aspects of the mainland US, however they're particularly normal in the Southwest. Additionally, rattlesnakes can be found in South America, Central America, and Mexico.
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Please help! Thanks
Name the respiratory structure in the amoeba
Answer:
The respiratory structure of an amoeba is called the mitochondria. This is because amoebas are eukaryotes and use mitochondria to respire.
what is the big bang theory, explain it in theory
Explanation:
The Big Bang Theory is the leading explanation about how the universe began. At its simplest, it says the universe as we know it started with a small singularity, then inflated over the next 13.8 billion years to the cosmos that we know today
Hi!The Big Bang theory is the prevailing cosmological model explaining the existence of the observable universe from the earliest known periods through its subsequent large-scale evolution.
The process of reproduction is not essential for the survival of an
individual but reproduction is essential for the continuation of a
species. (True or False)
Answer:
true
Explanation:
While it is one of the fundamental characteristics of living things, it is not an essential life process. An individual can live without reproducing, but, a species cannot survive without reproduction. Reproduction is thus essential for continuation of the species.
Sperm are produced in the
Glands
sperm ducts
testes.
urinary bladder
Answer:
Testes I cant explain it but this has to be at least 20 characters long
Answer:
Testes
Explanation:
Right off edge~
The Groundwater system?
Answer:
A groundwater system comprises the subsurface water, the geologic media containing the water, flow boundaries, and sources (such as recharge) and sinks (such as springs, interaquifer flow, or wells).
Explanation:
these are pieces of stems placed under suitable condoms which will produce new plants
please help
Answer:
Suitable environment is the need of plants to grow.
Explanation:
Stems also grows into some plants because many plant grow without roots such as rose plant. if only the stem is sown in the soil and provides suitable environment so they will grow and produces leads as well as roots and grow as a full plant so that's why the pieces of stems placed under suitable conditions which will produce new plants.
The image shows the beak shapes of four different tinches observed by Charles Darwin on the Galapagos Islands Darwin observed that broad-boaked inches
prefer to eat large, hard seeds, while finches with narrow beaks cat small, soft seeds
What did Charles Darwin infer from this study that led to the development of the Theory of Evolution?
Anches with broad breaks have Nigher survival rules than tinches with nurow beaks
Finches with narrow beaks gradually evolve broader beaks to feed on all types of seeds
The finches evolved from different ancestors with different shapes of beaks
. The finches evolved from a common ancestor and developed different break shapes to adapt to the food available
Answer:
The mechanism that Darwin proposed for evolution is natural selection. Because resources are limited in nature, organisms with heritable traits that favor survival and reproduction will tend to leave more offspring than their peers, causing the traits to increase in frequency over generations.
Explanation:
On the islands, Charles Darwin discovered several species of finches. He found out that different species of finches varied from island to island. Besides elaborating his thoughts on natural selection, this also helped him in his investigation on the evolutionary changes of the finches. Beaks changed as the birds developed different tastes for fruits, seeds, or insects picked from the ground or cacti. Long, pointed beaks made some of them more fit for picking seeds out of cactus fruits. Shorter, stouter beaks served best for eating seeds found on the ground.
Natural selection is the theory behind evolution put forth by Charles Darwin. Given the scarcity of resources in nature, animals with heritable features that promote survival and reproduction will typically produce more offspring than their contemporaries, leading to an increase in the frequency of such traits across successive generations.
Which observations about the Galapagos Islands did Charles Darwin make?He discovered a remarkable population of plants, birds, and reptiles in the Galapagos that had evolved independently of the mainland, but that frequently differed on nearly identical islands next to one another and whose characteristics he could only explain by a slow evolution of the various species.
Charles Darwin discovered a number of finch species on the islands. He discovered that several finch species vary from island to island. The Galapagos Islands are well-known for being the location where Charles Darwin discovered many previously unknown species of animals, which inspired him to develop the theories of natural selection, survival of the fittest, and evolution.
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Help!!!! Can anyone answer this lab questions below about mitosis!!!!
Answer:
Mitosis is a division of a eukaryotic cell in which the chromosomes are evenly distributed among the daughter cells.
In multicellular organisms, both sexual and asexual reproduction is followed by cell division, which ensures the growth and development of the organism. In addition, cell division is necessary to replace dead cells and repair injuries. New cells are constantly being added and old ones are being destroyed. About a hundred thousand more cells are created every second, and of course the same number dies. The new cells start with the division of the source cell. The cells formed in this way are called daughter cells. Stem cells can gradually divide into all the different cells in the body through mitosis.
Most of the body's cells are constantly renewed by mitosis, but there are also so-called irreplaceable cells that are formed only once in a lifetime for the life of the organism and do not regenerate by mitosis.
(04.01 LC)
Which of the following is a molecule with more than one element?
O Atom
O Bacteria
Compound
Organism
Answer:
atom
Explanation:
atom atom atom atom
HELLPPPP MEEE ILL MARK YOU BRAINIESTTT PLEAASEEEEE IT IMPOORRTAANYTTT
Answer:
The correct answer is - option D.
Explanation:
Mendel also performed this type of dihybrid cross that the genes for pea shape color assort independently of each other.
In this punnet square: there is a genotype ratio close to 9:3:3:1 of 9 = round-seed plants with green pods, 3 = wrinkled-seed plants with green pods, 3 =round-seed plants with yellow pods, and 1 = wrinkled-seed plants with yellow pods.
This is an expected ratio with an independent assortment of dominant and recessive alleles.
The high-altitude wind that blows from the west to the east over the United States is the _____
A. Trade wind
B. Westerly
C. Tropical wind
D. Jet stream
Answer:
b is the right answer
Explanation:
Describe the
relationship
between the age
of rock layers and
an unconformity
Answer:
Laws of stratigraphy help scientists determine the relative ages of rocks. This law states that deeper rock layers are older than layers closer to the surface. An unconformity is a gap in rock layers. They occur where older rock layers eroded completely before new rock layers were deposited.
Explanation:
The study of rock strata is called stratigraphy. The laws of stratigraphy can help scientists understand Earth’s past. The laws of stratigraphy are usually credited to a geologist from Denmark named Nicolas Steno. He lived in the 1600s.
Hope this helps!
Brain-List?
Ok boys, my bio unit test is going to start i want you guys help me pass. Plz answer the right answer, tysm
Is sulfur a mineral and does it meet the criteria???
Answer:
Explanation:
Although not an important rock-forming mineral, sulfur is still a crucial resource for human societies. Sulfur is a native element as well as a mineral. Its crystal form consists of transparent to translucent crystals that have an unmistakable deep yellow color.
Answer:
Sulpher is an element ,whose atomic no. Is 16 and atomic mass is 32.it is a non-metal Wich is yellowish in colour.
When during meiosis does crossing over happen?
Answer:
prophase
Crossing over occurs during prophase I of meiosis before tetrads are aligned along the equator in metaphase I. By meiosis II, only sister chromatids remain and homologous chromosomes have been moved to separate cells. Recall that the point of crossing over is to increase genetic diversity.
Explanation:
:)
What are the FIVE ways an object's motion can change?
Answer: An object's motion can change physically by humans, Physically by humans The action from a force can cause an object to move or can speed up accelerate, to slow down (decelerate), to stop, or to change direction. Since any change in velocity is considered acceleration, it could be said that a force on an object results in the acceleration of a object.
Explanation: please can I get brainliest
Motion is defined as the phenomena where an object moves from one point to another. Usually, a force has to act on the object for it to be in a state of motion.
Mathematically, motion has to do with:
AccelerationDisplacementDistanceVelocitySpeedTime.With this in mind, the five ways an object's motion can change include:
When the speed acting on the object changesWhen the force acting on the object changesWhen the acceleration changesWhen the velocity acting on the object changesWhen there is a greater displacement acting on the object.Read more here:
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How do you know that matter is conserved during the process of cellular respiration?
A) It has the same number of atoms in the inputs and outputs
B) It has the same number of molecules in the inputs and outputs
C) The same number of carbon molecules in the inputs is found in the outputs
Base your answers to the next question on the diagram below and on your knowledge of biology. The diagram represents a laboratory setup. A starch solution in a test tube was separated from the water in a beaker by a dialysis membrane. One hour later, it was observed that the liquid had risen in the test tube. The rise of the liquid in the test tube that was observed after one hour can be explained as a result of the *
Answer:
water moving from the beaker into the test tube
Explanation:
this was just on a quiz i had and it showed me the right answers after i finished
Osmosis can be used to explain the increase in fluid in the test tube that was observed after one hour.
Osmosis is the movement of water molecules through a semipermeable membrane from an area of low solute concentration to an area of high solute concentration. In this arrangement, the pure water in the beaker has a lower concentration of solute than the starch solution in the test tube.
Water molecules can pass through the dialysis membrane, but larger solute molecules such as starch cannot. Since the concentration of solute in the starch solution in the test tube is higher than in the water in the beaker, the water molecules move through the membrane to the beaker. This flow of water in the test tube increases the level of the liquid by increasing its volume. Therefore osmosis can be used to explain the rise of liquid in a test tube.
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Where in the United States is there measurable evidence that the continents are moving relative to one another.
Answer:
the san Andreas fault line
Explanation:
United States is there measurable evidence that the continents are moving relative the san Andreas fault line.
Where is United states?The United States, sometimes known as the United States of America, commonly referred to as America, is a federal republic with 50 states in North America.
The 48 contiguous states that are located in the central latitudes of the continent are joined by Hawaii, an island state in the center of the Pacific Ocean, and Alaska, a state at the far western end of North America.
The conterminous states are encircled by Canada to the north, the Atlantic Ocean to the east, the Gulf of Mexico and Mexico to the south, and the Pacific Ocean to the west.
Therefore, United States is there measurable evidence that the continents are moving relative the san Andreas fault line.
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Which excerpt from the passage "Equal Justice Under Law" most effectively illustrates Thurgood Marshall's natural tendency to resist authority?
"If he wasn’t throwing chalk or teasing girls, he was arguing with teachers."
"So, one day, the principal sent him to the basement with a copy of the United States Constitution and stern orders not to come back up till he had memorized a passage."
"'Before I left that school,” Marshall said many years later, 'I knew the whole thing by heart.'"
"Parts of the Constitution, however, confused the young Marshall."
Answer:A
Explanation:I took the test just now and that was the correct answer, goodluck :)
Answer:
The answer is a
hope this helps even though the other person already answered this and you asked it 10 hours ago :)
Structures that function in chemoreception and are found at the anterior and posterior ends of nematodes are
Answer:
amphids and the phasmids
Explanation:
1.)The more mass a star has the younger it is.
O True
O False
2.) _______ are groups of up to a few thousand stars that are loosely held together by gravity. _______ tend to be blue in color and often contain glowing gas and dust. They are made of young stars that formed from the same nebula.
A.) Dark matter
B.) Dark energy
C.) Open clusters
D.) Globular clusters
What does a generator do?
Answer:
it power's things when you don't have any power
1. What is the difference in the base pairing rules for DNA and RNA?
2. The what would be the complementary DNA strand for the following piece of DNA?
ATG GCT CTA CGT AAG
3. How would that change if the complementary strand was RNA?
Answer:
1.
DNA
A-T
G-C
RNA
A-U
T-A
G-C
2.
TAC CGA GAT GCA TTC
3.
AUG GCU CUA CGU AAG
When women are in labor, the uterus contracts more and more strongly by the actions of a peptide hormone messenger. This scenario is an example of.. * 1 point a negative feedback loop. a positive feedback loop. signal transduction immediately changing gene expression in its target cells. the key role of the anterior pituitary gland in regulating uterine contraction.
Answer:
The correct answer is - a positive feedback loop
Explanation:
Oxytocin is a peptide hormone that is released during labor in women which contracts the uterus and n increase of the oxytocin causes more release of oxytocin hormone to increase the contraction more strongly.
Oxytocin shows a positive feedback loop as its release leads to more of the oxytocin release by stimulates its more release. Most of the hormones show negative feedback release.
Which is an example of genetic diversity?
1. bacteria, garter snakes, tigers
2. temperate rain forests and a tropical rain forest
3. Variations in a flock of starlings
4. bees, jack rabbits, diamondback rattlesnakes
Answer:
1.bacteria, garter snakes, tigers
What ecosystem services do you think a grassland might provide for people?
Answer:
covett
Explanation:
non
non at all
(⌐■_■)
Pls hurry worth 20 points and will mark brainliest!!!
Answer: A the act of changing the functions of proteins.
Explanation:
Answer:
First one (80% probability)