Answer:
Genetic drift decreases genetic diversity within a population.
Explanation:
Genetic drift decreases genetic diversity within a population. It is a change in allele frequencies due entirely to random chance and is more likely to affect smaller populations than large ones. Population bottlenecks can lead to genetic drift.
What types of cells perform photosynthesis?
a
All prokaryotic
b
All animals
c
All eukaryotic
d
All plants
Answer:
All plants
Explanation:
This is due to the presence of chorophlly . the green colouring pigment in plants
plssss mark brainliest
Multiple choice. Please help !!!!
Answer: B. if im correct.
Explanation:
answer is b
it says my answer has to be 20 letters long
how can I study quickly
Answer: Time yourself, takes notes(postcards), try listening to music, try exercising to see if it relieves stress, get more sleep, test yourself, go to your teacher for study guides or explanations
Explanation: Help yourself for a better future, and also Search for questions online or from your teachers
when preparing pure cultures, dilution is necessary for
Dilution is necessary during pure culture preparation to reduce the bacterial load and allow readable colonies to grow.
Dilution of bacteria culture is carried out in comparison to McCfarlan standard so as to have a decent number of bacteria that will not be too numerous or too little to observe the growth of distinct colonies during culture preparation.
Without dilution, colonies may form but may be too numerous to count. Too much dilution may also lead to no growth in the culture plates.
More on pure culture preparation can be found here: https://brainly.com/question/9886600?referrer=searchResults
what is the oxygen cycle ?
Hope you could get an idea from here.
Doubt clarification - use comment section.
people who don't believe humans are causing global warming argue it might be caused by...
Energy from hot magma is called
a magnetic
b. geothermal
C)nuclear
d hydroelectric
Please select the best answer from the choices provided
Answer:
The answer is B.) Geothermal
Aristo was riding in a car and noticed a pond that was covered in algal blooms due to excess phosphorus in the water. Which of these other features in the landscape could be the reason for the high levels of phosphorus? many cars cow pasture solar panels forest.
Algae blooms are caused by an oversupply of nutrients like to water bodies, causing eutrophication. In the exposed example, a reason for the high levels of phosphorus is option B. Cow pastures.
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Eutrophication is a biological process produced in water by an oversupply of nutrients or organic matter.
The source of these high nutrient levels, especially nitrogen and phosphorus, are anthropogenic activities.
This oversupply favors phytoplankton multiplication, especially cyanobacteria.
Cyanobacteria can grow in seawater, but blooms mainly occur in freshwater where the salinity level is low.
These algae species that affect freshwater bodies are microscopic, photosynthetic organisms.
Blooms of cyanobacteria reflect the sanity state of water and its abiotic characteristics. They cause severe disasters in water biota and affect human health.
This overgrowth leads to an enhance in primary productivity and reduces the pass of radiation to deeper strata. This fact affects biota in deeper zones.
Gradually sedimentation begins, caused by the death of some vegetable organisms that sink in the bottom.
These sediments suffer decomposition in the presence of oxygen.
When oxygen disappears, anaerobic bacteria act and produce fermentation.
Phytoplankton overgrowth on the surface and fermentation process in the bottom, originate toxic compounds that can damage the animals in the water body and humans that get in touch with this water.
Animals die, creating more sediments in the bottom where there are anaerobic conditions.
The lack of oxygen and light continued to increase in decomposition, and fermentation produces a bad smell and toxicity.
Concerning the sources of nutrients that might be causing these events, we can mention, among others, cow pasture.
Cow pasture increases the levels of phosphorous on the ground, which ends in water streams, and from there to ponds or lakes.
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Related link: https://brainly.com/question/725774?referrer=searchResults
Answer: cow pasture
Explanation:
why is the human brain unique
Answer:
Like with fingerprints, no two people have the same brain anatomy, a study has shown. This uniqueness is the result of a combination of genetic factors and individual life experiences. Like with fingerprints, no two people have the same brain anatomy, a study by researchers of the University of Zurich has shown.
Which of the following vitamins helps prevent night blindness?
A. Vitamin A
B. Vitamin C
C. Vitamin E
D. Vitamin K
Answer:
Vitamin A
Explanation:
Vitamin helps corrects deficiency and improve night blindness.
Which type of cell is smaller?
Cells
A. Prokaryote
We
PL
SLI
AT H
Ecology.
B. Eukaryote
Evolution &
Classification
C. Nucleokaryote
Genetics & Meiosis
D. All types of cells have this structure.
Life Chemistry
(DNA, Proteins, etc.)
Respiration &
Photosynthesis
Scientific Methods
Click to choose your answer below:
A
B
С
D
What are Chromatids in biology
Answer:
A chromatid is one of two identical halves of a replicated chromosome. During cell division, the chromosomes first replicate so that each daughter cell receives a complete set of chromosomes.
Explanation:
80. An atom is to a molecule, as a
to a cell
A. an organism
B. an organ
C. a tissue
D. an organelle
Answer: C. a tissue
Explanation:
A scientist fills a glass container with water and places an aquatic plant inside the container, then closes the lid and places the
container in direct sunlight. The scientist observes small bubbles on the surfaces of the plant's leaves on days 1 and 2, but no
bubbles on day 3. The scientist concludes that the bubbles were caused by photosynthesis. Which substance should be
added to the water in order for the bubbles to reappear? (1 point)
Answer: Are there any options? you either add C02 because it has run out gas or you and in minerals that also contain C02.
Explanation: you need C02 to have photosynthesis, so with a closed off lid, the gas is going to eventually run out.
Carbon dioxide should be added to the water in the container in order for the bubbles to reappear in the glass container while placed in sunlight. Carbon dioxide is a component of photosynthesis.
What is Photosynthesis?Photosynthesis is the process by which plants prepare their own food in sunlight and in the presence of carbon dioxide gas. Photosynthesis process takes place in the chloroplast of cells.
Photosynthesis is an anabolic reaction in which carbon dioxide and water reacts in the presence of sunlight which is trapped by the chlorophyll present in the leaves of plant to produce glucose (carbohydrate) and oxygen gas, which is later utilized in the process of respiration.
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the recommended daily allowance listed on the nutrition facts label is based on how much caloric intake?
Answer:
2,000-calorie daily diet.
Explanation:
sensory transduction in the auditory system is much like transduction of __________.
Answer:
mechanosensory stimuli.
Explanation:
50 points and brainliest
Drag each tile to the correct box. Not all tiles will be used.
Mitosis is a type of cell division. Organize the images below to show the steps of mitosis.
Answer:
The lesson provided all the information, and I got a 100%
Explanation:
which term defines a well tested scientifically supported
Answer: A scientific theory is the correct answer
Where, in terms of an ellipse, is the Sun located with respect to the orbit of each planet? Which
one of Kepler's Laws does your answer support?
Answer:
focus
The Sun is at one focus. The planet follows the ellipse in its orbit, meaning that the planet to Sun distance is constantly changing as the planet goes around its orbit. Kepler's Second Law: the imaginary line joining a planet and the Sun sweeps equal areas of space during equal time intervals as the planet orbits.
ovulation is induced by a peak in the secretion of
Ovulation starts when the secretion of Luteinizing hormone (LH) peaks in females.
Ovulation is simply the release of eggs from the ovaries of females. It happens as a part of the menstrual cycles of the female gender.
The release of eggs from the ovary is triggered by an acute rise in the level of LH in females. LH in males stimulates the production of testosterone.
More on ovulation can be found here: https://brainly.com/question/10050537?referrer=searchResults
ASAPPPPP!!!
Why do cells have a high surface area to volume ratio? *
A. to contain more nutrients
B. to contain more organelles
C. to more readily exchange substances across the cell.
D. to have only small substances travel across the cell.
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Answer:
yes
Explanation:
How do chemosynthetic organisms get energy? Some examples of organisms include colorless sulfur bacteria, iron bacteria, and giant tube worms
Answer:
The source of energy for chemosynthesis is energy liberated from a chemical reaction (the oxidation of an inorganic substance)
Explanation:
https://sciencing.com/source-energy-chemosynthesis-6681808.html
how can food handlers reduce bacteria to safe levels when preparing vegetables
These can be done by washing of the vegetables, good kitchen Hygiene and proper storage.
Vegetables are perishables, with some quantity of stored water and therefore they harbor bacteria.
Hands should be washed before handling to prevent contamination.Thorough washing should be done under running water to remove the bacteria. The water current sweeps away the bacteria.Further washing of the vegetables in the warm water with 2% saline solution is needed to kill some other bacteria and pesticides resistant to cold water. This is also remove pesticides residue on the leave surfaces.The vegetables should be stored in the refrigerator to slow down the activity of the bacteria prior to cooking or before eating.for more on handling of handling of vegetables to remove bacteria; https://brainly.com/question/4179837
What three things might influence a slide when conditions are right? What types of material can make up a flow? (Site 1).
A slide can be influenced by friction, weight, and the angle of the slope. The materials that form flow generate less friction depending on the environmental conditions.
A slide is a movement that occurs when a fragment of soil/rock suddenly moves down a slope.
Slope stability is a factor influenced by the angle of the slope and the strength of the materials (e.g., rocks) on it.
The slide movement can ultimately be considered as a battle between friction versus gravity.
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What is this diagram?
Answer:
This Diagram is of Plant cell and Animal cell...✌
Hope it helps u...
What motivates Pacific salmon to migrate? And give two obstacles they face during migration.
what type of plate boundary interactions take place when the tonic plates slide past each other
convergent boundaries
divergent boundary
subduction boundaries
transform boundaries
What safety precautions must I take in a minerals investigation?
In a phrase, tell what each scientist did to help develop the cell theory
Answer:
English scientist Robert Hooke published Micrographia in 1665. In it, he illustrated the smallest complete parts of an organism, which he called cells. theory that all organisms are made of cells, which are the basic structural units of life