Answer:
it was before the continent drift the homosapiens travelling habitated the most parts of world
How does gene flow directly contribute to evolution?
Answer:
Evolution can also occur as a result of genes being transferred from one population to another. This gene flow occurs when there is migration. The loss or addition of people can easily change gene pool frequencies even if there are no other evolutionary mechanisms operating.
Explanation:
hope this helps!!!
Please help with all three will mark brainliest
Answer:
cells and tissue are the most basic level
then it is the bladder as it is connected to the kidney
and then the muscular system as it is chewing
Explanation:
Help!! When a virus gets into the body, some body cells
are................
How is the temperature of a location determined by energy from
the sun and the location's distance from the equator?
Answer:
Explanation:
How would Earth be different without the greenhouse effect?
A. There would be more solar energy reaching Earth.
B. There would be more ice on Earth's surface.
C. The oceans would contain more carbonic acid.
D. The atmosphere would contain more methane.
the evolutionary mechanism that maintains or increases diversity is?
Answer:mutation
Explanation:
____ currents inside Earth might drive plate motion.
a.
Vertical
c.
Horizontal
b.
Convection
d.
none of the above
Please select the best answer from the choices provided
Answer:
B. Convection
Explanation:
Read the passage. Then explain the ways humans have influenced the traits in corn plants and the impacts each biotechnology has had.
Passage
Many of the types of corn found in grocery stores were originally bred for their taste and productivity. But these varieties are often threatened by pests. This makes it harder for farmers to produce enough corn.
Scientists have used genetic engineering to make GMO corn plants that are resistant to pests. In one type of GMO plant, they added genes from bacteria that live in soil. The genes let the GMO plants produce a bacterial protein that kills certain insects.
Answer:
It decreases cost of production on the crop as well as increase production.
Explanation:
It is a very efficient method to save a corn plant from the attack of bacteria. This method is used in almost each and every plant in order to make it resistance against harmful pests and microorganism. By using this technology, the cost of production on the growing of crop decreases which gives more profit to the farmers as well increase the overall productivity of that corn crop.
Answer:
One of the ways we have influenced the traits in corn is through selective breeding. We now have taller plants, and bigger ears of corn, that taste better. Another way we have influenced the traits is by modifying them to be pest resistant.
Hope this helps! ✌️What is a condition where the nervous system causes a muscle contraction or shortening of muscle fibers?
A. Muscular response
B. Motor response
C. Muscular movement
D. Motor movement
Which sentence best represents the relationship between the process of subduction and the rock cycle?
A.
Subduction creates rocks.
B.
Subduction destroys rocks.
C.
Subduction recycles rocks.
D.
Subduction sorts rocks.
Answer:
C. Subduction recycles rocks.
I NEED HELP PLSSSSS !!! I WILL MARK BRAINLEIST
What figurative term is "merry hell"?
onomatopoeia
personification
oxymoron
hyperbole
HELP MEEE,!!!!! PLEASE
Answer:
C
Explanation:
spindle fibers are important during metaphase. division stops without them.
HELP HELP HELP
THERES ONLY 1 RIGHT ANSWER
Directional selection drift
Disruptive/divergent selection drift
Fitness
DNA
Artificial selection
Vestigial structure
Homologous structure
Convergent evolution
Niche
Strong big one
Thin needle nose
Behavioral selection
Genetic variation
Answer: dna
Explanation:
2. In restaurants, most food contact surfaces are smooth and lack cavities/pores in their surface. What is the advantage of that for microbial control?
Answer:
Microbes and Bacteria can be killed more easily and so they cant hide in the little pores.
Explanation:
How will increased temperatures affect water in California?
Answer:
Rising temperatures also increase the rate at which plants transpire water into the air to keep cool, so irrigated farmland would need more water.
Explanation:
When Gregor Mendel crossed true-breeding tall plants (TT) with true-breeding short plants (tt), all the offspring were tall because
Answer:
Because the trait associated with "tall-ness" is dominant and shortness is recessive
Answer:
the allele for tall plants is recessive and none of the offspring received an allele for short height.
Explanation:
Thats what my teacher said^
Suppose an individual giraffe could not reach high leaves on a tree
its neck was too short. Lamarck's theory would suggest that the giraffe could
undergo physical changes that would lengthen its neck simply by stretching
to reach the branches. What experimental result would disprove this?
E The necks of giraffes today are shorter than the necks of early giraffes.
G. Giraffes with longer necks prefer to eat leaves from higher branches.
H. Neck lengtı does not change when giraffes are fed branches at different
heights.
1. Giraffes with longer necks frequently produce offspring that also have
longer necks.
Answer:
the last one according to me
Which is a product of
photosynthesis?
A. chemical energy
B. light
C. carbon dioxide
Answer:
carbon dioxide is the product of photosynthesis
Explanation:
A product of photosynthesis is considered by the scientific community is used to make millions of copies for the purposes of taking a large amount of a DNA sample to produce large amounts of a DNA sample for study purposes. allowing a wide- scale study..
The result of this is A, chemical energy...allowing a larger study of photosynthesis to study in detail...
1. In the fast change, how are other parts of the ecosystern affected?
Answer:
is there more to this question because this doesn't make sense.
Explanation:
Match the causes with their effects.
Cause: Convection currents cycle through magma.
Cause: Unstable isotopes inside Earth release energy.
Cause: Iron in Earth’s outer core swirls due to convection currents.
Effect: Radiogenic heat is released.
arrowRight
Effect: Earth has a powerful magnetic field.
arrowRight
Effect: Tectonic plates move.
arrowRight
1. Effect: Radiogenic heat released- Cause: convection currents cycle through magma.
2. Effect: Earth has a powerful magnetic field- Cause: Iron in earths outer core swirls due to convection currents.
3. Effect: Tectonic plates move- Cause: unstable isotopes in earth release energy.
What is Convection current?Convection currents are defined as the result of differential heating where lighter, less dense, warmer materials rise while heavier, more dense, cooler materials sink. This is the movement that creates circulation patterns known as convection currents in the atmosphere, in water, and in the Earth's mantle.
Convection currents arise from differences in fluid density that arise due to a temperature gradient, resulting from the continuous replacement of the hot fluid in the region of the heat source with the nearby cold fluid which is known as the natural convection currents.
Thus, Radiogenic heat released- Cause: convection currents cycle through magma.
Learn more about Convection current, here:
https://brainly.com/question/30245846
#SPJ2
Answer:
Effect:
Radiogenic heat is released
Cause:
Unstable isotopes inside Earth release energy
----------
Effect:
Earth has a powerful magnetic field
Cause:
Iron in Earths outer core swirls due to convection currents
----------
Effect:
Tectonic plates move.
Cause:
Convection currents cycle through magma.
-----------
Explanation:
Got it right on Edmentum.
What is the Heat Source in the experiment?
Answer:
I’m pretty sure it should be the light ;)
Explanation:
Sorry if it wrong
One day you experience violent thunderstorms followed by a few days of colder weather. Which type of front most likely moved through your area? occluded front stationary front warm front cold front
Answer:
d
Explanation:
The whether occurrence as described in the question is caused by the cold front.
What is a front?In discussing about weather, a front refers to a region in which there is a transition between air masses on the earths surface. The occurrence of various types of front is the reason behind different types of whether patterns.
The violent thunderstorms followed by a few days of colder weather is caused by a cold front.
Learn more about whether fronts: https://brainly.com/question/16357973?
In molecular compounds molecules bonded tk gether by____
a) covalent bond
b)metallic bond
c)ionic bond
d)none of them
Answer:
a) Covalent bond
Explanation:
Atoms of different element are held together in molecules by covalent bonds in which atoms share their valence electrons with each other.
WILL GIVE BRAINLIEST
which of the following situations best displays a direct effect of a flood?
a.) a change in building regulations
b.) the destruction of a neighborhood
c.) the creation of new levees for future protection
d.) trough of wave arrives fast exposing the sea floor
Answer:
b.
Explanation:
Are frogs and birds OR frogs and horses more closely related?
A.Frogs and birds because they have the most specific taxonomic level in common.
B.Frogs and horses because they have the most specific taxonomic level in common.
C.Frogs and birds because they are both small.
D.They are all in the same taxonomic level, so they are equally related.
explain the full meaning of xerophytes
Answer:
xerophytes is a species of plant that has adaptations to survive in an environment with little liquid water such as a desert,ice or snow covered region.
examples are; pineapple and gymnosperm plants.
Explanation:
xerophytes are species of plants that can live in Extreme conditions like in the desert where there is very little water or in the Alps where water is frozen water
example -cactus
Name the major muscles
Carbon Cycle activity part 2
(photos attached)
Which of the following best describes a mutation?
a change in a gene
a section of a chromosome that codes for a trait
anything that can damage a gene
a distinguishing quality that can be passed from one generation to another