Answer:
convex lens converges the reflected ray and makes an inverted image on the retina . ciliary muscles helps the cover lens to adjust. thus, the photo receptors on the retina convert the image to electrical impulses and it is send to the brain by optic nerves
Explanation:
mark me brainliest please
How much carbon is stored in the atmosphere as CO2? HELP ME LIKE ASAP NO ROCKY
What are two ways to identify NESW?
Answer:
-The sun
-shadow
Explanation:
-The sun rises in the general direction of east and sets in the general direction of west every day, so you can use the location of sunrise or sunset to get an approximate idea of direction.
-The shadow will always move - or, more precisely 'grow' in the west-to-east direction. (Before noon, when the sun is rising, the shadow will grow shorter and after noon when the sun is setting, the shadow will grow longer)
In ancient times, people believed Earth was the center of the Solar System. Which of the following makes the geocentric model impossible?
The moon revolves around Earth
o Earth's gravitational force is much less than the Sun's,
0 Orbits are elliptical, not circular,
There are other planets that are closer to the Sun.
Answer:
Orbits are elliptical, not circular
Explanation:
There were too many celestial objects for that model to have worked, you would have had a series of overlapping orbits that wouldn't be stable
4. What role do carrier proteins play in facilitated
diffusion?
Answer:
Carrier proteins can change their shape to move a target molecule from one side of the membrane to the other. ... The carrier proteins involved in facilitated diffusion simply provide hydrophilic molecules with a way to move down an existing concentration gradient (rather than acting as pumps).
HELP DUE IN 10 MINS!
In leaves of a plant, Solar Energy is first used to make??
A. Proteins
B. Carbohydrates
C. Lipids
D. Water
Answer:B is the right answer I am sure.
Explanation:
Answer:
B. Carbohydrates
Explanation:
I have already done this unit
100 POINTS AND BRAINIEST FOR BEST COREECT ASNWER. Write a four-to-five sentence paragraph that explains how overexploitation contributes toward present-day mass extinctions. Provide a definition of the term overexploitation and at least one example with your answer.
Overexploitation, also called overharvesting, refers to harvesting a renewable resource to the point of diminishing returns. Continued overexploitation can lead to the destruction of the resource. The term applies to natural resources such as: wild medicinal plants, grazing pastures, game animals, fish stocks, forests, and water aquifers.
what does a boy do when they like u?
they act like they have the right to treat you like dodo but if he is nice he will be prob either shy or hide his feelings.
Describe and compare the types of scales used by scientists to measure and describe earthquakes.
Please help
Answer:
There are two primary scales used to measure earthquakes: the Richter scale and the Mercalli scale. The Richter scale is most common in the United States, while worldwide, scientists rely on the Mercalli scale. The moment magnitude scale is another earthquake measurement scale used by some seismologists.
Three sources of genetic variation are
A. genotypes, phenotypes, and polygenic traits
B. sexual reproduction, lateral gene transfer, and mutations
C. single-gene traits, polygenic traits, and adaptation
D. directional selection, disruptive selection, and stabilizing selection
Answer:
B
Explanation:
Why don't offspring always look like their parents?
A. The way offspring look also depends on their behavior traits.
B. The way offspring look also depends on the amount of nutrients received during birth.
C. The way offspring look depends on the combinations of alleles they inherit and on interactions between traits and the environment.
D. The way offspring look depends on the combinations of alleles they inherit and on interactions between genes and the environment.
Answer: The answer is C. The way offspring look depends on the combinations of alleles they inherit and on interactions between traits and the environment.
Explanation: Each baby isn't an exact clone of the parents. They share different alleles from different parents. Think about it. If the dad and mother didn't look alike then how could the baby have the same physical features as both combined. So basically, The way offspring look depends on the combinations of alleles they inherit from their parents.
Can I please have brainliest?
What is this organelle
True or false during meiosis chromosomes are moved by the microtubules of the spindle apparatus
When an object does not move it is because there are unbalanced forces acting on it. please help!
A. True
B. False
Answer:
I think that the answer is False.
Explanation:
What type of tropism this picture represent?
A) gravitropism
B) phototropism
C) thigomotropism
Answer: Gravitropism
Explanation:
The plant is growing upwards, defying gravity so it is negative gravitropism
Large deposits of bones
physical records
both Bible and physical records
Bible account
10 POINTS (and no its not 5 and I gave 10 its 10 and I gave 20)
In the Northern Hemisphere, winds associated with a high-pressure system blow
clockwise toward the center
clockwise outward from the center
counterclockwise outward from the center
counterclockwise toward the center
Answer:
Low pressure is called a cyclone and has anticlockwise winds blowing around it. High pressure is called an anticyclone and has clockwise winds blowing around it. I mean the second one.
Answer:
a. clockwise toward the center
Explanation:
Because the winds differ on every side of earth.
This is a map of a _ landform because ?
ASAP
Answer:
This is a map of a Mountain landform because the rings get smaller until the top of the mountain. Also the altitude goes up until it reaches the top.
Explanation:
How do the profile plot amplitudes of all three muscle types (skeletal, cardiac and smooth muscle) compare?
PLEASE HELP NEED ANSWER AS SOON AS POSSIBLE
Match the terms related to enzyme actions with their descriptions.
substrate
active site
product
catalyst
the initial substance in a chemical
reaction that is changed
the substance that speeds up or helps
chemical reactions to occur
the location on an enzyme where
the initial substance reacts
the end substance that results from
a chemical reaction
Answer:1:reactants
2:catalyst
3:active site
4:product
Explanation: U answer my question plz
Identify which type of natural selection is described in each case below.
Results in the evolution of the species:
Results in new species:
Favors traits at the two extremes:
No increase in diversity:
One extreme trait is favored:
Diversity decreases:
Diversity increases:
Answer:
Results in the evolution of the species: Directional selection
Results in new species: Disruptive selection
Favors traits at the two extremes: Disruptive selection
No increase in diversity: Directional selection
One extreme trait is favored: Directional selection
Diversity decreases: Stabilizing selection
Diversity increases: Disruptive selection
Explanation:
Directional selection which is also known as positive selection is known to be a mode of natural selection. In this type of selection, an extreme phenotype is favored over other phenotypes. This makes the allele frequency to move in the direction of that phenotype and this takes place over time.
Disruptive selection (known to be diversifying selection) talks about the certain changes in the population genetics whereby extreme values of a particular trait are favored over intermediate values. This results in new species.
While Stabilizing selection is a natural selection whereby there is a stabilization of the population mean on the particular value of a non-extreme trait. Here the diversity is decreases.
Answer: A) directional selection
B) disruptive selection
B) disruptive selection
A) directional selection
A) directional selection
C) stabilizing selection
B) disruptive selection
Explanation: :)
Where in cells does most of cellular respiration take place?
Answer:
Mitochondrion
Explanation:
The enzymatic reactions of cellular respiration begin in the cytoplasm, but most of the reactions occur in the mitochondria. Cellular respiration occurs in the double-membrane organelle called the mitochondrion. The folds in the inner membrane are called cristae.
Gametes in humans are
a. Sperm cells
b. Egg cells
c. Sperm or egg cells
d. X or Y chromosomes
Answer:
c
Explanation:
they are also known as sex cells
Answer:
Sex Cells (Sperm & Egg Cells)
A forest fire took over this forest ecosystem, burning a majority of the trees in the area. How would this forest fire impact different two different consumer populations in this ecosystem?
Answer:
Herbivore and carnivores.
Explanation:
This forest fire greatly affected two consumer populations such as herbivores and carnivores because herbivores has no food available due to forest fire. The unavailability of food for the herbivores leads to the decrease in herbivore population that also adversely affected the population of carnivore ( those organisms that feed on herbivores) so both are affected from the forest fire.
Explain how too much carbon dioxide in the atmosphere causes these changes.
Answer: Carbon dioxide becomes a poisonous gas when there is too much of it in the air you breathe. Besides the effects it can have on the planet and the atmosphere, carbon dioxide poisoning can lead to central nervous system damage and respiratory deterioration in humans and other breathing creatures.
Explanation:
Biology questions
if you only know the answer to one that's ok I just need some help
1. Which digestive enzyme is made in the Mouth? How does it help digestion?
2. What digestive enzyme is made in the Stomach? How does it help digestion?
3. What other chemical is made in the Stomach? How does this help digestion?
4. What does the Pancreas make that helps to neutralize the acid from the stomach as it goes into the small intestine?
5. What enzymes make up Pancreatic Juice? What does each enzyme do to help digestion?
6. What chemical does the liver make? What does it do?
7. What does the gall bladder store?
Answer:
1. Salivary amylase is the primary digestive enzyme in the mouth. I helps to break down carbohydrates.
2. Pepsin is produced in the stomach and breaks down proteins.
3. Protease is also found in the stomach. It breaks down proteins and peptides.
4. Bicarbonate is a basic substance made by the pancreas and helps to neutralize stomach acid.
5. Bicarbonate ions to neutralize the hydrochloric acid of chyme.
6. The liver secretes bile, a digestive fluid; metabolizes proteins, carbohydrates, and fats; stores glycogen, vitamins, and other substances; synthesizes blood-clotting factors; removes wastes and toxic matter from the blood; regulates blood volume; and destroys old red blood cells.
7. Bile
Explanation:
What is the relationship between Rate of Enzyme Reaction and temperature?
Like most chemical reactions, the rate of an enzyme-catalyzed reaction increases as the temperature is raised. A ten degree Centigrade rise in temperature will increase the activity of most enzymes by 50 to 100%.
The millions of tiny air sacs in the lungs are called
Answer:
Alveoli
Explanation:
Answer:
AlveoliExplanation:
Alveoli are tiny air sacs in your lungs that take up the oxygen you breathe in, and keep your body going.
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GL :)
A change in the thermal energy can cause other changes to occur in the substance. Which of the following could occur as a result of decreasing the thermal energy of a gas?
Answer:
radiation
Explanation:
Classification of Living Organisms Common Name Bush Anole Crested Penguin Ferret Muskrat Kingdom Animal Animal Animal Animal Phylum Chordata Chordata Chordata Chordata Class Mammalia Order Reptilia Aves Mammalia Squamata Sphenisciformes Carnivora Polychrotidea Spheniscidae Mustelidae Rodentia Family Muroidea Genus Polychrus Muroidea Eudyptes Mustela Pachyrhynchus Putorius Species Femoralis Zibethicas According to the above table, which animals are more closely related?
A. Bush Anole and Crested Penguin
B. Crested penguin and Ferret
C. Ferret and Muskrat
D. Bush Anole and Ferret
Answer:
c
Explanation:
What’s the different properties of hbA and HbS
Answer:
The isoelectric point of normal HbA is 6.9 [91], but HbS has two fewer negative charges per hemoglobin molecule than HbA because glutamic acid residues in the β-chains of HbS were substituted by the valine residues [5], [6]. It shows that HbS has more hydrophobicity than HbA in this condition [10]