Answer:
Evolution
Explanation:
I would say adaptation but evolution is the closest thing on here
Answer:
D. Evolution
Explanation:
Through this process of natural selection, favorable traits are transmitted through generations. Natural selection can lead to speciation, where one species gives rise to a new and distinctly different species. It is one of the processes that drives evolution and helps to explain the diversity of life on Earth.
Choose all that apply for Grasslands
Question 3 options:
no trees and shrubs
Contains grasses and woody plants
rainfall is low
occur in all climatic zones
Choose all that apply for Savanna
Question 4 options:
rainfall is moderate
occur in sub tropical and warm zone
scattered trees and shrubs
contains only coarse grass
How does a fire help grasslands?
Choose all that apply
Question 7 options:
keeps trees from overtaking the grasses
all of the choices
preserve biodiversity
helps contain only coarse grass
What type of grasslands are found in the United States?
Question 9 options:
plains and prairies
steppes
velds
pampas
PLEASE HELP ME!!!
Answer:
number 4
A,B,C
number 3
A,
Grasslands have no trees and shrubs, contains grasses and woody plants, and rainfall is low.
What do you mean by Grasslands?Grasslands may be defined as area in which the vegetation is dominated by a nearly continuous cover of grasses.
Savannah is a type of grasslands where there is moderate rainfall that contains scattered trees and shrubs.Fire helps grasslands by preserving biodiversity. The type of grasslands found in the United States is plains and prairies.
Therefore, all the questions are discussed above one by one.
To learn more about Biodiversity, refer to the link:
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Tell in your own words:
Why is it called a Solar System?
What occurs when particles of warmer matter collide with particles of cooler matter
Answer:
They transfer some of their thermal energy
Answer:
they transfer thermal energy
Explanation:
hope this helps!
~evita
1. How many layers are there in an arthropod's exoskeleton? What is the main function of
each layer?
Explanation:
The exoskeleton and molting
The success of arthropods derives in large part from the evolution of their unique, nonliving, organic, jointed exoskeleton (see figure), which not only functions in support but also provides protection and, with the muscle system, contributes to efficient locomotion. The exoskeleton is composed of a thin, outer protein layer, the epicuticle, and a thick, inner, chitin–protein layer, the procuticle. In most terrestrial arthropods, such as insects and spiders, the epicuticle contains waxes that aid in reducing evaporative water loss. The procuticle consists of an outer exocuticle and an inner endocuticle. In the exocuticle there is cross-bonding of the chitin–protein chains (tanning), which provides additional strength to the skeletal material. The hardness of various parts of the exoskeleton in different arthropods is related to the thickness and degree of tanning of the exocuticle. In crustaceans, additional rigidity is achieved by having the exoskeleton impregnated with varying amounts of calcium carbonate.
arthropod integument
arthropod integument
Diagrammatic section through the arthropod integument.
Encyclopædia Britannica, Inc.
The formation of an exoskeleton required the simultaneous solution of two functional problems in the evolution of arthropods: If the animal is encased in a rigid covering, how can it grow and how can it move? The problem of growth is solved in arthropods by molting, or ecdysis, the periodic shedding of the old exoskeleton. The underlying cells release enzymes that digest the base of the old exoskeleton (much of the endocuticle) and then secrete a new exoskeleton beneath the old one. At the time of actual shedding, the old skeleton splits along specific lines characteristic of the group, and the animal pulls out of the old skeleton as from a suit of clothes. The old skeleton is usually abandoned but in some species is eaten. The new exoskeleton, which is soft and flexible, is then stretched by localized, elevated blood pressure augmented by the intake of water or air. Hardening occurs by stretching and especially by tanning within a number of hours of molting. In crustaceans, calcium carbonate is deposited into the new procuticle. (Soft-shell crabs are simply newly molted crabs.) Additional endocuticle may be added to the exoskeleton for some days or weeks following molting.
molting
molting
Grasshopper shedding its exoskeleton.
© Cathy Keifer/Dreamstime.com
Molting is under hormonal control, and there is a long preparatory phase that precedes the process. The steroid hormone ecdysone, secreted by specific endocrine centres and circulated in the blood, is the direct initiator of molting. The actual timing of a molt, however, is regulated by other hormones and commonly by environmental factors. The interval between molts is called an instar. Because of the frequency of molts, instars are short early in life but grow longer with increasing age. Some arthropods, such as most spiders and insects, stop molting when they reach sexual maturity; others, like lobsters and crabs, molt throughout their lives. Most of the larger spiders of temperate regions, for example, molt about 10 times before reaching sexual maturity. As a result of molting, the length and volume of an arthropod display steplike increases over the life span, but internal tissue growth is continual as in other animals.
Loss of a limb is a common hazard in the life of many arthropods. Indeed, some arthropods, such as crabs, are capable of amputating an appendage if it is seized by a predator. The limb is then regenerated from a small, nipplelike rudiment formed at the site of the lost limb. The new limb develops beneath the old exoskeleton during the premolt period and then appears when the animal molts.
Answer:
Three layers
Explanation:
Outer= Composed of proteins and lipids. Repels water and prevents desiccation in terrestrial places.
Middler=Provides primary protection
Inner=Flexibke at joints, muscles attach here.
The purebred plants called
Explanation:
Mendel crossed purebred plants with opposite forms of a trait. He called these plants the parental generation , or P generation. For instance, purebred tall plants were crossed with purebred short plants. Mendel observed that all of the offspring grew to be tall plants.
A true-breeding organism
An increase in heart rate (your heart pumps faster) results in...
A. No changes to cardiac output or pressure
B. Increase cardiac output and high pressure
C. Increased cardiac output but lower pressure
Answer:
B
Explanation:
How do gravity and inertia work together in our solar system?
Answer:
They work together to keep things in orbit.
Explanation:
Gravity pulls things in, while inertia says that all celestial objects will try their best to continue forward. The results in the orbiting of celestial objects, like the Earth, around other celestial objects, like the Sun.
Answer:
The gravity of the sun and the planets works together with the inertia to create the orbits and keep them consistent. The gravity pulls the sun and the planets together, while keeping them apart. The inertia provides the tendency to maintain speed and keep moving.(Source: sciencing.com)
I hope this helped! =)Help Please!!!!!!!!!!!!!!!!
Answer:
cant see it
Explanation:
16. Which type of organism are fungi? (Select all that apply.)
Herbivore
Decomposer
consumer
producer
Answer:
The answer is all of the above except for PRODUCER- DONT PUT PRODUCER
Explanation:
Fungi are important decomposers, especially in forests. All animals are consumers, and they eat other organisms. Fungi and many protists and bacteria are also consumers. Fungi and many protists and bacteria are also consumers.
What is the sediment deposited by surface water?
Answer: Delta
Explanation:
A delta is the sediment deposited by the surface water. When the river flows it carries the sediments from the bedrock and also from the surface of the top layer of the soil. These sediments are deposited on a fan like formation that is called as delta. It leads to the development of a landform. It is the most fertile landform as the sediments are rich in mineral content that promote the growth of the plants. This develops when river enters into the ocean, estuary, reservoir, lakes, and any other water body supplying the sediments on the surface.
Please help me. no links I report you
I think the first graph, I'm not positive though.
Genetic information is stored and transmitted within.
A. nucleic acids.
B. proteins.
C. amino acids.
D. sugars.
Answer:
A. nucleic acids
Answer:
A. nucleic acids
Explanation:
Water is often called the “universal solvent” becuase many substances can be dissolved in water. What property of water allows it to be such a versatile solvent?
expansion upon freezing
polarity and cohesion
purity
high heat capacity
Answer:
polarity and cohesion
Explanation:
What would happen to
offspring if crossing over did
not occur?
Answer: If crossing over did not occur during meiosis, there would be less genetic variation within a species. ... Also the species could die out due to disease and any immunity gained will die with the individual. Two types of gametes are possible when following genes on the same chromosomes. If crossing over does not occur, the products are parental gametes. If crossing over occurs, the products are recombinant gametes.
Explanation:
Describe Charles Darwin's theory of natural selection
Answer:
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Explanation:
Answer:
Explanation:
Darwin's Theory of Evolution by Natural Selection
More individuals are produced each generation that can survive. Phenotypic variation exists among individuals and the variation is heritable. Those individuals with heritable traits better suited to the environment will survive.Charles Darwin's theory of evolution states that evolution happens by natural selection. Individuals in a species show variation in physical characteristics. ... As a consequence those individuals most suited to their environment survive and, given enough time, the species will gradually evolve.
During ______, the gravitational forces of the sun and moon pull on the Earth from the same direction, or opposite dire
Answer:
Spring Tides.
Explanation:
Tides can be defined as the rise and fall of water level in water bodies such as lakes and oceans due to the gravitational force of attraction exerted by the moon on earth. The side closest to the moon creates a bulge of water known as high tide. Low tides are generally experienced when a sea level is not within the bulge.
Generally, the gravitational pull of the Moon cause visible changes on planet Earth's surface.
This ultimately implies that, the pull of the Moon's gravity causes high and low tides on planet Earth's surface.
The various types of ocean tides based on the position of the Earth, Moon and the Sun are;
I. Neap tides.
II. Spring tides.
III. Low tide.
IV. High tide.
V. Brown tide.
VI. Rip tide.
VII. Red tide.
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Water molecules at the surface of a body of water tend
to pull inward and resist force which is why some insects
look like they are floating on top of water.
a) cohesion
b) density
c) surface tension
d) adhesion
Answer:
surface tension
hope this helps, plz mark me as brainliest.
Answer:
c) surface tension
Explanation:
Surface tension is the property of the surface of a liquid that allows it to resist an external force, due to the cohesive nature of the water molecules.
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Many scientists believe that stem cell research will one day lead to new treatments for diseases, but some people have ethical concerns about this research.
Which of the following characteristics of stem cell research is the most likely source of ethical controversy?
A. Stem cells naturally produce many different cell types.
B. Stem cell research requires specialized equipment.
C. Stem cells can replace damaged cells with healthy cells.
D. Stem cells are often extracted from human embryos.
Answer:
D. Stem cells are often extracted from human embryos.
Explanation:
This is a major point of ethical concern and is also a root for many abortion conspiracy theories. The reason it is an ethical concern is because harvesting stem cells often times kills the embryo.
Do you think fords suck why or why not
Answer:
yes i do
Explanation:
i personally think gmc and chevy are the best truck made, but thats just my opinion.
The reaction between methane and oxygen releases a lot of energy. What does this do to the temperature?
Tissues combine to create an _______ that completes a specific task (job) in the body.
A. organ
B. cell
C. organ system
Answer:
A. Organ.
Explanation:
Cells make up
tissues, tissues make up an organ. Organs make organ system
Easy question about plant water loss?
Answer:
B,C,F
Explanation:
What are the components of Darwin's theory of evolution?
(9 Points)
The evolution of a population happens slowly
Organisms have common ancestors
Organisms change over time
All of the above
Answer:
B
Explanation:
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Do ecosystems always stay the same? Explain
Cheests as a species of cat best known for being the fastest land animal, with the ability to sprint at speeds of up to 120
Kilometers per hour, Cheetahs have small heads, lean bodies, long legs, and a yellowish-tan coat with distinctive black spots
Cheetahs face extinction pressure from climate change, hunting by humans, and habitat destruction, which is reducing the size of
their populations, Predict how these pressures have affected the genetic diversity of cheetahs.
Answer:
Genetic diversity has decreased due to inbreeding due to dwindling population size.
Cheetahs are facing great pressures, such as climate change, destruction of their habitat, and also hunting by humans that have greatly impacted their genetic diversity.
What are the causes of inbreeding in Cheetahs?Cheetahs have experienced a very declining rate of their populations due to destruction of their habitat, and also hunting by humans that has resulted in inbreeding in their populations and loss of genetic diversity.
Due to inbreeding, cheetahs have become more exposed to genetic disorders and vulnerable to diseases, and other threats.
Climate change has also posed a great threat to the declining population of cheetahs as it has affected their habitats and food resources. Climate change causes alteration in the temperature and rainfall pattern resulting in low availability of prey and water resources. Therefore, climate change leads to the malnutrition of cheetahs and making them more susceptible to severe disease.
Therefore, cheetahs are facing extinction due to climate change, habitat destruction, and hunting by humans.
Learn more about the cheetahs, here:
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how does sugar affect Co2 production in yeast
Explanation:
When yeasts eat sugar and turn it into energy, they also produce carbon dioxide.
Define
1.epiphyllous stamens
2.staminode
Answer:
1. Epiphyllous is anything that is growing on the surface of the leaf or get attached to it of any other plant. ... In this, the stamen gets attached to the part of the flower of some other plant as an adhesion of stamen. Explanation: In other words, Epiphyllous stamen are the Filaments fused with tepals.
2. In botany, a staminode is an often rudimentary, sterile or abortive stamen, which means that it does not produce pollen. Staminodes are frequently inconspicuous and stamen-like, usually occurring at the inner whorl of the flower, but are also sometimes long enough to protrude from the corolla.
Explanation:
pls mark me brainless
Does myostatin defiency make you grow muscle faster then normal?
Answer:
Deficiency in myostatin resulted in increased muscle mass (1, 6, 15–18), but that this increase was not accompanied by a proportionate increase in force generation.
Explanation:
These findings clearly indicate that the increase in muscle mass of myostatin mutant animals confers no strength advantage over wild-type controls.
Hope this helps!
What part did undeveloped and developing countries play in the Industrial
Revolution
Answer:
Explanation: