Which of the following best describes natural selection?
A. organisms vary in their physical traits, and some are inherited
B. Organisms compete for food and shelter
C. organisms best suited to their environments are most likely to survive and reproduce
D. Organisms produce more offspring than can survive
deposits of coal have been found beneath the ice of Antarctica. But coal only forms from warm swamps. How can coal be found so near the South Pole?
Which of the following are parts of a bacterial cell?
Select all that apply.
mitochondria
flagella
cell wall
pili
Answer:
It is a gel-like matrix composed of water, enzymes, nutrients, wastes, and gases and contains cell structures such as ribosomes, a chromosome, and plasmids. The cell envelope encases the cytoplasm and all its components. Unlike the eukaryotic (true) cells, bacteria do not have a membrane enclosed nucleus.
Explanation:
Flagella, cell wall, and pili are parts of a bacterial cell.
What is a bacterial cell?Microscopically small, single-celled creatures known as bacteria are found in millions in every habitat, both within and outside of other living things.
Some bacteria are hazardous, but most serve a helpful role. They are employed in industrial and medical procedures and sustain a wide variety of living forms, including both plant and animal life.
Around 4 billion years ago, bacteria are assumed to be the initial lifeforms to emerge on the planet. The earliest fossilized creatures are bacteria-like ones. Most biological and some materials can be used as food by bacteria, and certain strains can withstand harsh environments.
New insights into the functions of the gut microbiome are being provided by this expanding interest in how microorganisms affect human health. Bacteria are prokaryotes that do not contain any membrane-bound organelles.
Therefore, flagella, cell wall, and pili are parts of the bacterial cell.
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The use of fossil fuels is a concern because it can lead to which of the following?
O increased runoff
O global warming
O polluted waters
Oeutrophication
Answer:
O global warming
Explanation:
The use of fossil fuels is a concern because it can lead to global warming.
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Answer:
Glucose is the word!!
Why does the ability to lay 1,000 to 5,000 eggs increase the fitness of the species L. clamitans clamitans?
It increases the probability that moving water will promote gene flow from one population to another.
It increases the chance of the recombination of alleles, leading to genetic drift in the population.
It increases opportunities for offspring to compete for limited resources.
It increases the probability that some offspring will survive long enough to reproduce.
Answer:
increases opportunities for offspring to compete for limited resources.
what did humans evolve from I am creating a a evolution chain I know this can be considered a unintelligent question I am just not positive on what we evolved from
Answer: Human evolution, the process by which human beings developed on Earth from now-extinct primates. Viewed biologically, we humans are Hono Sapines, a culture-bearing upright-walking species that lives on the ground and very likely first evolved in Africa about 315,000 years ago.
Human evolution is not linear manner it is a web, in the process of evolution primates lead to the emergence of homo-sapiens, which is distinct from the hominid family.
How did humans evolve?Human evolution is observed in a web manner not linear in evolutionary history primates lead to the homo-sapiens which is distinct from another family of hominids.
The hominid family includes great apes that diverged from the gibbons 15-20 million years ago. Evolution involves some studies, genetic studies, and h behavioral studies.
Anatomically it is observed in Africa 300000 years ago humans appeared, these studies were observed anatomically as the origin of humans.
Therefore human evolution is observed in a web manner not linear.
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What is the main function of leaves?A. Leaves provide support for growth and a place to store food.B. Leaves provide a place for photosynthesis to occur.C. Leaves absorb water and minerals and transport nutrients to the stem.D. Leaves create a barrier that prevents water in the plant's tissues from evaporating
Answer:
B
Explanation:
The main function of a leaf is to produce food for the plant by photosynthesis.
Answer: The correct answer is B. Leaves provide a place for photosynthesis to occur.
Explanation: Confirmed correct.
Chlorophyll is essential to photosynthesis because it traps the _______________ needed. A. oxygen B. carbon dioxide C. sunlight D. water
Answer:
sunlight
Explanation:
cawg
Answer:
C. sunlight
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genes for traits that help an organism be more successful reproductively can be expected to ...
A - cause it to evolve into species
B - eventually be eliminated by natural selection
C - become more common in the future
D- cause the extinction of the species
The Rio Grande River separates Mexico from Texas.
What most likely created the riverbed?
A.glaciers
B.plate collisions
C.volcanoes
D.water erosion
Answer:
d I think or b?
Explanation:
water could cause it to form a river and spread over time
Causes of gonorrhea
Please list 3 causes
Cancer cells avoid apoptosis by the inactivation of the _______ suppressor gene .
plz help
A student claims that the only difference between prokaryotic cells and eukaryotic cells is that
eukaryotic cells have a nucleus, but prokaryotic cells do not. What is wrong with this claim?
The description of the cell types is incorrect.
Prokaryotic cells have a nucleus, and eukaryotic cells do not.
The description of the cell types is incorrect. Both prokaryotic and eukaryotic cells have a nucleus.
There is another difference between the cell types. Eukaryotic cells have membrane-bound organelles, but
prokaryotic cells do not.
There is another difference between the cell types. Eukaryotic cells have a cell membrane, but prokaryotic
cells have a cell wall instead.
Explanation:
Eukaryotic cells:
• There is a well defined nucleus
• They are membrane bounded cell organelles like chloroplast, golgi bodies, mitochondria.
Prokaryotic cells:
• The nucleus are not well defined
• Cell organelles are not bounded by membrane
Please help!!
Explain why it would be financially beneficial for a farmer to treat a fruit crop with gibberellins.
Answer:
Gibberellins can promote flowering, which can result in more financially profitable flowers to sell due to the increased speed of flower growth. More attractive flowers and larger specimens are also produced. Flowering also has an impact on the rate of fruit growth.
Explanation:
which statement best describes an example of selective breeding?
Answer: the answer is A
Explanation:
_______ Which nutrients should we limit and eat less to promote good health?
a. protein, sugars and total fat
b. sugars, fiber and total fat
c. total fat, cholesterol and sodium
c. total fat, cholesterol and sodium
Marcus grew three rosemary plants. He put one in
direct sunlight, one in the shade, and one in the
dark. The plant in the sun grew the most quickly
and looked the healthiest. Marcus concluded that
rosemary plants grow best in the sun.
How would you evaluate Marcus's conclusion?
O A. His conclusion is valid because his
experiment included a control.
B. His conclusion is valid because he tested
only one variable.
O C. His conclusion is flawed because he did
not perform enough trials.
O D. His conclusion is flawed because it is
based on the appearance of the plants.
Answer:
His conclusion is flawed because he did
not perform enough trials.
Explanation:
i jus took the test
Which is not a reason for biodiversity in an ecosystem.
A. Organisms can adjust to environmental changes
B. The ecosystem provides a variety of food for organisms
C. Water scarcity
Answer:
C
Explanation:
it's water scarcity because biodiversity is variation among a group of populations. water scarcity would kill out animals and diminish biodiversity in an area
Answer:
C. Water scarcity
Explanation:
Hope you have a great day :)
What does "reliably" mean in these sentences?
Answer:
it would be the top right one
Answer:
in a way that can be trusted
Explanation:
hope this helps!
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How much water on Earth is salt water?
Answer:
97 percent
Explanation:
Science
Answer:
below
Explanation:
Over 97 percent of the earth's water is found in the oceans as salt water. Two percent of the earth's water is stored as fresh water in glaciers, ice caps, and snowy mountain ranges. That leaves only one percent of the earth's water available to us for our daily water supply needs.
1Which of the following animals is a primary consumer?
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Horses have three basic coat colors: red (or chestnut), bay, and black. All the colors are controlled by the interaction of two genes, Extension (E) and Agouti (A). The following combinations produce bay color: EE/Aa, Ee/Aa, EE/AA, Ee/AA. Only two produce black color: EE/aa, Ea/aa. Other combinations of the alleles of these genes plus mutations of others result in many possible coat colors and patterns in horses
Coat color in horses is an example of which type of inheritance?
(1 point)
A. polygenic inheritance
B. dominant inheritance
C. Mendelian inheritance
D. recessive inheritance
Answer:
A. Polygenic inheritance
Explanation:
When the qualities or the attributes are passed from the parent to their progeny is called inheritance. It can be passed either sexually or asexually.
The correct answer is:
Option A. Polygenic inheritance
This can be explained as:
When a trait is regulated by two or more genes is called polygenic inheritance.Dominant inheritance occurs when the qualities from the parent possessing the dominant gene pass to the progeny.According to Mendelian inheritance paired genes assorts independently and are passed from parent to their progenies.Therefore, coat colour in horses is an example of polygenic inheritance.
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Which of the following are characteristics of
Zygomycota? Check all that apply.
D
lack reproduction phase
spores produced in basidia
spores produced in zygosporangia
important in the food industry
important in the fermentation process
can cause disease to plants
can cause disease to animals
Answer: 3- spores produced in zygosporangia
5- important in the fermentation process
Explanation:
Answer:
in the picture
Explanation:
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Explanation:
A is the correct answer in my opinion. Thanks.
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what can a negative consequence of humans being hunter-gatherers?
A. they needed to stay in one location for food
B. Nate cultivated their own food
C. they had to move around to find food
D. they had to have large families to help on the farm
Answer:
C
Explanation:
An organ that makes and secretes hormones is called a
1] lung
2]gland
3]pancreas
4]thyroid
Answer: 2]gland brainliest?
Explanation:
3. What is a type of asexual reproduction that com-
monly occurs in many species of unicellular pro-
tists? (1) external fertilization (2) tissue regenera-
tion (3) binary fission (4) vegetative propagation
Answer:
In fission (or binary fission), a parent separates into two or more individuals of about equal size. This type of reproduction is common among single-celled organisms including bacteria, archaea, and unicellular eukaryotes, such as protists and some fungi. The single cell divides into two daughter cells.Aug 17, 2016
Explanation:
islfso lufe
(Hint: a non-renewable resource, like coal)
CHAPTER
1 what is the term?
Answer:
Fossil fuel
Explanation:
