Answers
Answer:
Population change is governed by the balance between birth rates and death rates. If the birth rate stays the same and the death rate decreases, then population numbers will grow. If the birth rate increases and the death rate stays the same, then population will also grow
Explanation:
Natural increase in a population occurs where Birth rate is greater than death rate. ... Natural decrease occurs when death rate is greater than birth rate. This means that more deaths occur in a population than babies are born so population numbers decline
The population will be doubled by immigration. The correct option is C.
What is immigration?When an animal settles down in a habitat because it has resources nearby or because it is a good fit for them, this is referred to as immigration.
When an animal emigrates, it's because its habitat is no longer perfect for it and it needs to move to a new location with a better habitat.
It is the quantity of members of the same species that have entered the habitat during the time period under examination from outside the habitat.
To immigrate means to move permanently to another country. To migrate is to move, much like wintertime birds. Depending on the viewpoint, one can either migrate, immigrate, or emigrate.
Immigration can increase the size of a population if the birth and death rates are equal.
Thus, the correct option is C.
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Related Questions
A researcher performs an experiment to test a hypothesis that involves the nutrients niacin and retinol. She feeds one group of laboratory rats a daily diet of precisely 125.6 units of niacin and 5,400 units of retinol. She uses two types of commercial pellet food. Food A contains 0.86 units of niacin and 30 units of retinol per gram. Food B contains 0.66 units of niacin and 40 units of retinol per gram. How many grams of each food does she feed this group of rats each day
Answers
Answer:
- 100 grams of food A (x)
- 60 grams of food B (y)
Explanation:
According to this question, the group of laboratory rats are being fed a daily diet of:
- 125.6 units of niacin and 5,400 units of retinol
Let x represent the number of grams needed for food A.
Let y represent the number of grams needed for food B.
This means that:
Food A: Niacin = 0.86x, Retinol = 30x
Food B: Niacin = 0.66y, Retinol = 40y
Since there are 125.6 units of niacin fed to the rats in total, then;
0.86x (A) + 0.66y (B) = 125.6
Since there are 5400 units of retinol fed to the rats in total, then;
30x (A) + 40y (B) = 5400
Solving these two equations simultaneously using elimination method:
0.86x (A) + 0.66y (B) = 125.6 ........(eqn 1)
30x (A) + 40y (B) = 5400 ............ (eqn 2)
Multiply eqn 1 by 30 and eqn 2 by 0.86
30 × 0.86x + 0.66y = 125.6
0.86 × 30x + 40y = 5400
25.8x + 19.8y = 3768 ............ (eqn 3)
25.8x + 34.4y = 4644 ........... (eqn 4)
Subtract eqn 3 from eqn 4
14.6y = 876
Divide both sides by 14.6
y = 876/14.6
y = 60
Substitute value for y (60) into eqn 2
30x + 40y = 5400
30x + 40(60) = 5400
30x + 2400 = 5400
30x = 5400 - 2400
30x = 3000
x = 3000/30
x = 100
Therefore, she feeds the group of rats 100grams of food A (x) and 60 grams of food B (y).
Which of these energy sources is formed from decayed and compressed
plankton?
O A. Coal
O B. Geothermal
O C. Biomass
O D. Natural gas
Answers
Answer:
I think is D) natural gas
Which of the following particles has no charge?
A. Ion
B. Proton
C. Neutron
D. Electron
Answers
Correct me if I’m wrong
Choose the correct ranking of relative electronegativities of the following parts of the ETC or molecules
that interact with the ETC from highest to lowest electronegativity.
A/Q> 0,> NADH > Cyt c, (ETC complex III) > FMN (ETC complex I)
B/0,> Q> NADH > Cyt c, (ETC complex III) > FMN (ETC complex I)
C/ FMN (ETC complex 1) > 0,>Q> NADH > Cyt c, (ETC complex III)
D/ NADH > FMN (ETC complex I) > Q>> Cyt c, (ETC complex III) > O2
E/ 0,> FMN (ETC complex 1) >Q> Cyt a (ETC complex III) > NADH
Answers
When a male with genotype Bb makes a sperm cell, it could have the ____ allele
1. XY
2. b
3. B or b
4. B
Answers
This is because since the male has two alleles there is a 50% chance that either allele (B or b) could be in the new sperm cell. Hope this helps!
Hydra are a small thread like animal that lives in fresh water. The picture shows one type of
process of a hydra. Which best describes the process of this hydra? 0
(2 Points)
Answers
This process is called "budding".
Using the key from question 5, match the appropriate structures with the descriptions given below.
1. site of regulation of body temperature and water balance; most important autonomic center
2. site where medial fibers of the optic nerves cross
3. located in the midbrain; contains reflex centers for vision and hearing
4. responsible for regulation of posture and coordination of complex muscular movements
5. important synapse site for afferent fibers traveling to the sensory cortex
6. contains autonomic centers regulating blood pressure, heart rate, and respiratory rhythm, as well as coughing sneezing, and swallowing centers
7. large fiber tract connecting the cerebral hemispheres
8. relay stations for olfactory pathways
9. canal that connects the third and fourth ventricles
10. portion of the brain stem where the cerebral peduncles are located
Answers
Answer:
1. Hypothalamus
2. Optic chiasma
3. Corpora quadrigemina
4. Cerebellum
5. Thalamus
6. Medulla oblangata
7. Corpus Collosum
8. Fornix
9. Cerebral aqueduct
10. Midbrain
Explanation:
The hypothalamus is a small central region of the brain that regulates body temperature by responding to both internal and external stimuli and also produces the antidiuretic hormone (ADH) in order to trigger the reabsorption of water in the kidneys. The optic chiasma is a special sensory structure located along the visual pathway, directly in front of the hypothalamus, which is crucial to vision. The corpora quadrigemina, also known as quadruple bodies, are reflex centers located in the mesencephalon (midbrain) that regulate the position of the head and eyes in response to somatic stimuli. The cerebellum is a part of the brain located behind the top part of the brain stem which is involved in motor movement regulation and balance control. The thalamus (massa intermedia) is a paired gray matter structure found near the center of the brain that plays vital roles associated with sensory and motor functions of the brain. The medulla oblangata (medulla) is a structure located at the base of the brain involved in the regulation of sensory, motor, and mental functions (e.g., breathing, pain modulation, etc). The corpus callosum (the callosal commissure) is a bundle of nerve fibers that connects the two hemispheres of the brain. The fornix (agenesis of the corpus callosum) is a large interhemispheric commissure that connects neurons in the right and left hemispheres. The cerebral aqueduct (aqueduct of Sylvius) is a narrow channel that connects the third and fourth ventricles, thus allowing the cerebrospinal fluid to flow between the ventricles. Finally, the midbrain o 'mesencephalon' is a small region located in between the forebrain and hindbrain, which is involved in auditory and visual processing, eye movement and coordination.
QUESTION 6
Which of the following is NOT an enzyme
O Amylase
Lipase
Oxidase
Alanine
Answers
1a)Which of the Pollen grain will most likely fertilise the egg cell in the ovule why?
a) pollen grain
B) stigma
write down a sentence why?
________________________________________________
Answers
Answer:pollen grain
Explanation:
Because it contains male gametophyte.
Sunlight is extremely important for the development and growth of coral.
This important factor of survival for the coral reef is-
Answers
Answer:
coral always grow in shallow water
what is the role of microorganisms in food preservation?
Answers
Answer:
Preservation usually involves preventing the growth of bacteria, fungi (such as yeasts), and other microorganisms, A number of methods of prevention can be used that can either totally prevent, delay, or otherwise reduce food spoilage.
Explanation:
Which of these do not contain muscles? uterus blood vessels calf muscles eye pupils
Answers
Answer: blood vessels
Explanation:
Answer: Blood Vessels
Explanation:
How can we reduce the amount of waste by home?
Answers
Answer:
you can recycle your bottles and reuse them for anything you might need .
Explanation:
Explain how the lymphatic system is adapted for the transportation of the lymph
Answers
Answer:
The lymph capillaries feed into larger lymph vessels. The lymph vessels that receive lymph fluid from many capillaries are called collecting vessels. Semilunar valves work together with smooth muscle contractions and skeletal muscle pressure to slowly push the lymph fluid forward while the valves prevent backflow.
¿De acuerdo a las preferencias alimenticias de los estudiantes, según la encuesta, qué tipo de hidratos de carbono no han sido preferidos en su alimentación? ¿Según las características de estos carbohidratos, qué beneficios provocan en la salud humana?
Answers
please help i am giving away brainiliest
The structure that releases hormones is called a ___________.
A. gland
B. sponge
No dam links
Answers
Answer:
A. gland
Explanation:
A gland is an organ which produces and releases substances that perform a specific function in the body.
Explanation:
A. gland is the answer
have a nice day:)
The maternal effect Drosophila mutation bicoid (bcd
-
) is recessive. A
female that is bcd
-
/bcd
+
is mated to a bcd
-
/bcd
- male. What is the outcome?
A) 50% of the eggs will hatch, and these will produce fertile adults
B) no eggs will hatch
C) all eggs hatch, but 50% of the resulting daughters produce eggs
that fail to hatch
D) it is impossible to get a bcd
-
/bcd
- male, so this mating can not
occur
E) 50% of eggs will hatch, but half the female offspring will be infertile
Answers
Answer:
I need the points :((((((
Where are areas of high rainfall most likely to occur?
A. Above clockwise moving gyres
B. Above cold surface waters
C. Above counter-clockwise moving gyres
D. Above warm surface waters
Answers
The areas of high rainfall most likely to occur in " Above warm surface waters".
What is rainfall ?The moist air would be forced to ascend whenever it encounters obstacles like mountains as well as rises as a result. Then condensation happens, and it starts to rain. Orographic rain and relief rain are two names for this sort of precipitation.
There are generally three types of rainfall occur:
reliefconvectional.frontal.Therefore, the correct answer will be option (D).
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What happens at the dew point?
A. Water evaporates.
B. It rains.
C. Clouds are formed.
D. All of the above.
Answers
Answer:
Water droplets are formed.
Explanation:
PLEASE CORRECT ME IF IM WRONG
someone help me and explain
Answers
Answer:
rrkufhjgfyrugf5td89yed/learningnice.com/ffiuvfk/answer
Explanation: theres the answer
What are sister chromatids?
O the matched set of two chromosomes
O the protein structures moving the chromosomes
O the middle region of a replicated chromosome
O he two identical copies of one chromosome
Answers
Answer:
hi how are you doing today Jasmine
Name some organs that the diaphragm pushes against during inspiration
Answers
Complete the passage to differentiate between longitudinal and transverse waves.
A longitudinal wave is a type of wave that transfers energy
to the direction of wave motion. A transverse wave, on the other hand, is a type of wave that transfers energy
to the direction of wave motion.
Answers
Answer:
transverse Waves transfer energy at right angle while longitudinal waves transfers energy parallel
In one or two sentences, explain how cats and dogs, both mammals, could be classified as distinct animals. What characteristics set them apart from one another?
Answers
Answer:
Cats and dogs are both mammals because they have hair, are warm-blooded, and nourish their young with milk. Dogs and cats are distinct species, incapable of producing offspring together because of the many differences in their genome.
Explanation:
i hope this was helpful!
Mammals are warm-blooded vertebrate(backbone) animal distinguished by hair or fur on their body.
Mammals give birth to younger ones.Female mammals produce milk in their mammary gland to feed the younger ones.Examples of mammals includes, Huma being, lion, dog, tiger, cat, horse, goat, cow etc.
Since, cats and dogs are both mammals, the difference between them is the genome.Genome is the complete genetic information (DNA or RNA) of an organism.Cats and dogs have different genetic information.
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Think about it
1. Living organisms are composed mostly of four elements: ______________ , _______________, ____________, and _______________ .
Recycling in the Biosphere
2. Unlike the _____ -way flow of energy, matter is ____________ within and between ___________ .
3. What are biogeochemical cycles?
4. What three processes are involved in the cycling of matter?
A.
B.
C.
Answers
Answer: 1. Carbon, hydrogen, oxygen, and nitrogen, 2. high, measured speed. 3. Biogeochemical cycle, any of the natural pathways by which essential elements of living matter are circulated. The term biogeochemical is a contraction that refers to the consideration of the biological, geological, and chemical aspects of each cycle. 4. These three processes move water into the atmosphere. Evaporation occurs when water on Earth's surface changes to water vapor.
Explanation:
Which cells in the body are targeted by HIV?
red blood cells
platelets
B cells
T cells
Answers
What is the term for creating a new species
Answers
Answer:
Speciation is the process by which new species form. It occurs when groups in a species become reproductively isolated and diverge. In allopatric speciation, groups from an ancestral population evolve into separate species due to a period of geographical separation.Explanation:
An area is currently a forest. What evidence would best indicate that this area was covered by water millions of years ago? *
1 point
An increase in rainfall in the forest over time
Fossils of fish discovered in rock below the forest
The presence of plants in the forest that need water to live
Insects in the forest that lay their eggs in the water
HELP ME PLZZZZ REALLY BE THE BEST
Answers
Answer:
Fossils
Explanation:
I had this question on my test and this was the answer
Answer:
Fossils
Explanation:
how proteins are made
Answers
Proteins are an important class of molecules that carry out most of the work inside cells. The building blocks of proteins are smaller organic molecules called amino acids. Most organisms, including humans, use only 20 different amino acids to assemble the vast multitude of proteins needed to build and run a cell.
To build proteins, cells use a complex assembly of molecules called a ribosome. The ribosome assembles amino acids into the proper order and links them together via peptide bonds. This process, known as translation, creates a long string of amino acids called a polypeptide chain.
After the polypeptide chain is synthesized, it will sometimes undergo additional processing. For example, some proteins will have certain amino acids removed. Or extra molecules such as sugars or phosphates may be attached to some of the amino acids in a protein.
Answer:
proteins are made of large numbers of amino acids joined end to end. The chains fold up to form 3d molecules with complex shapes - you could think of it as origami with very long and thin piece of paper
During DNA replication, which of the following components is not required?
single-stranded
DNA primers
single-stranded RNA
primers
double-stranded
DNA primers
double-stranded RNA
primers
Answers
Answer:
im not sure, but i think its single-stranded :>
Explanation: