Answer:
D. Populations of both trees and shrubs decreased due to the increased competition for water.
Explanation:
if both of the trees are competing for water both of them will decrease bc they will both take water from each other causing both of the trees to die.
Organisms in the class Mammalia have characteristics the include (choose all that apply)
а
hair
С
nursing young with milk
being ectothermic
d
giving birth exclusively on land
Which is not a characteristic of homologous chromosomes?
A. same length
B. same centromere positon
C. exact same type of alleles
D. same genes
Answer:
C. exact same type of alleles
1. Which are the two important roles of the atmosphere?
Sort the sentences based on the type of relationship they describe. Sea lampreys hatch eggs on fish and feed on the fish. Clown fish help sea anemones catch prey while using the sea anemones for protection. Mosquitoes suck blood from the bodies of organisms. Ants provide protection to acacia trees while receiving nutrients from the trees. Mutualism Parasitism Ants reserved PLZ HELP
Answer:
1: Parasitism
2: mutualism
3: parasitism
4: mutualism
Explanation: Hope this helps and have a great day!!
The sentences describe different types of symbiotic relationships between organisms are: Parasitism, Mutualism, Commensalism
1. Parasitism: Sea lampreys hatch eggs on fish and feed on the fish.
In parasitism, one organism benefits (the sea lampreys) at the expense of the other (the fish) by feeding on its tissues.
2. Mutualism: Clownfish help sea anemones catch prey while using the sea anemones for protection.
This sentence describes mutualism, where both clownfish and sea anemones benefit from the relationship. Clownfish protect sea anemones from predators, while they, in turn, provide a safe haven for the clownfish.
3. Parasitism: Mosquitoes suck blood from the bodies of organisms.
Mosquitoes exemplify parasitism as they feed on the blood of other organisms, taking nutrients without providing any benefit in return.
4. Mutualism: Ants provide protection to acacia trees while receiving nutrients from the trees.
This sentence represents mutualism, where ants defend acacia trees from herbivores, and in return, they receive nutrients and shelter from the trees.
5. Commensalism: Ants reserved.
The term "reserved" here seems to be incomplete, but assuming it refers to ants residing in a certain place, it would represent commensalism. Commensalism describes a relationship where one organism benefits, and the other is neither helped nor harmed significantly.
In summary, the sentences describe mutualism, parasitism, and possibly commensalism, showcasing the diverse interactions that can occur in ecological communities.
Know more about ecological communities:
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Kayla observes that plants that grow in the shade have larger leaves than plants that grow in full
sunlight. Based on that observation, which of these might be an advantage of having larger leaves?
F An increase in water supply
G A decrease in water loss
H An increase in light absorption
J A decrease in heat production
Answer:
H sunlight makes make stuff bloom faster and brighter it
A decrease in heat production
This is because if it is in shade, there is bairly any heat applied since sun is a form of heat.
Hope this helps!
Which of these events would lead to an INCREASE in the size of a population of squirrels?
A. More squirrels are born that die
B. Some squirrels emigrate to a different ecosystem in search of food
C. New predators are added to the ecosystem
D. A large number of squirrels die because of a forest fire
Answer:
A
Explanation:
the answer cannot be D, since dying decreases the population. And it cannoy be c because if new predators are added, there might be others who will eat the squirrels. and b doesnt mean a decreasion or increason. so its neutral. therefor the answer is A
What is the significance of pepsin in this experiment? (Why is it included?)
Question 2 options:
Pepsin is an enzyme, it breaks the bonds within proteins.
Pepsin is an acid, it will dissolve anything.
Pepsin is a basic substance, it will dissolve anything.
Pepsin is the protein we are studying.
al 1
Explanation:
esuna ustancia rompe los enlacs
Edward syndrome is due to an extra chromosome number___
a)11
b)18
c)23
d)1
Answer:
Edward syndrome is due to an extra chromosome number 18
Explanation:
18 is the answer........
Think of two types of biomes and list them. Describe how they are similar. What are the differences between the two types of biomes?
Answer:
Dessert and tundra
Explanation:
Theses two biomes get very little rain and because of this they have a less diversity of fauna and flora.
The differences are that a tundra is very dry and extremely cold and on the other hand a desert is very arid and hot and it can go as high as 54°C (130°F).
During Anaerobic respiration, cells make energy without:
Oxygen
Water
Carbón Dioxide
Energy (ATP)
During anaerobic respiration , cells make energy without Oxygen
the energy obtained during anaerobic respiration is 2 ATP
Based on the context in paragraph 4, fossil refers to ____________.
a. how igneous rocks were formed over time
b. a trace or print, or the remains of a plant or animal of a past age preserved in Earth or rock
c. layers of sediment building up over time and pressing down, forming rock
4. Sedimentary rock is the second category. These rocks cover most of Earth’s land. Sedimentary rocks are made of pieces of other rocks and shells. Erosion causes rocks to slowly wear away. Erosion can be caused by rain, wind, freezing, and plant roots. Sometimes small pieces of rock are made because of erosion. The small pieces of rock are called sediment. Rivers take sediment to oceans and lakes. The river drops the sediments as it slows down. The sediments settle to the bottom in layers. More and more layers of sediment are dropped over millions of years. The weight from the top layers turns the bottom layers of sediments into rock. This makes some sedimentary rocks look layered. Fossils are often found in sedimentary rocks.
Answer:
b. a trace or print, or the remains of a plant or animal of a past age preserved in Earth or rock
Explanation:
Fossils are remains or prints of extinct species that are slowly filled in with sediment over time.
The water cycle is a complex system. In it, water changes
states. Sometimes it is a liquid. Sometimes it is a solid. Other
times it can become a gas. What change occurs when water is
boiled?
a Gas becomes a solid.
b Gas becomes a liquid.
C Liquid becomes a gas.
d Saldes loud
Answer:
the answer is c
Explanation:
when water is boiled it becomes a gas
According to the graph, what were the results of the vaccination between 1954 and 1960?
A. The rate of polio remained the same.
B. The rate of polio decreased
C. The rate of polio decreased, then increased.
o
D. The rate of polio increased
Answer: B the rate of polio decreased
Explanation: looking at the graph, polio is going up around the year 1950-1960 but by 1970 when the March dimes organization vaccinated nearly 2 million people the people with polio began to decrease therefore its B
PLEASE HELP ASAP PLEASE
What is a igneous rock
Answer:
Igneous rock, or magmatic rock, is one of the three main rock types, the others being sedimentary etc. Igneous rock is formed through the cooling and solidification of magma or lava.
You decide to create a composting bin for your house. While checking on it one day, you notice that the compost bin has started to smell like rotting eggs. You know that a successful compost bin should not smell like this. You take a sample of the pile and check for the presence of microorganisms under the microscope. You see that there are indeed microorganisms. Given this information, what should you do to resolve the smell of your compost?(1 point)
Creating a tent for the pile to shield it from the sun and heat will help resolve the smell.
Turning the pile to aerate the compost and expose it to oxygen will help resolve the smell.
Adding more “brown” materials to the pile to increase the amount of carbon will help resolve the smell.
Adding more “green” materials to the pile to increase the amount of nitrogen will help resolve the smell.
Answer:
Turning the pile to aerate the compost and expose it to oxygen will help resolve the smell
What happens to oxygen that is produced during photosynthesis?
a. It is used by plants to carry out photosynthesis.
b. It is used by all organisms to carry out photosynthesis.
It is used by all organisms to carry out cellular respiration.
d. It is used only by plants to carry out cellular respiration.
C.
The best way to practice sustainable use of rangelands is to
Answer: 1. Rotating the rangelands that are being used.
2. Reducing overgrazing of rangelands.
Explanation:
Rangelands are the sites which are occupied and dominated by vegetation cover mostly the shrubs and herbs. It can be occupied by grasses. Overgrazing by the cattle cause a huge damage to the field of rangeland so it can cause soil erosion and can convert the rangeland on barren land. The regrowth rate is slower than that of the consumption rate of the cattle. So, reduction in overgrazing is advisable to maintain the sustainability of the land. Rotation of the rangelands being used if the cattle are taken to the different grassland for grazing on alternate days then the rangelands can be maintained sustainably.
Numerous structures in the human body have evolved to maximize
surface area. These structures often take the form of folded anatomy
and help move important substances from the system they are found it
to the blood through the capillaries. Describe TWO examples of such
structures and EXPLAIN how they allow for the regular functioning of
the human body.
Answer:
Respiration begins at the nose or mouth, where oxygenated air is brought in before moving down the pharynx, larynx, and the trachea. The trachea branches into two bronchi, each leading into a lung. Each bronchus divides into smaller bronchi, and again into even smaller tubes called bronchioles.
What do you understand by membrane potential?
Using diagram(s) describe the genesis of the membrane potential
The function of mRNA is to:
The process by which plant manufacture their food is called what?
Answer:
It is called photosynthesis
why biology major uses APA?
A student is studying a cell from an unidentified organism. Which feature of the cell provides the strongest evidence that the organisms is a
prokaryote, and not a eukaryote?
The cell contains a nucleus and membrane-bound organelles.
The cell lacks a nucleus and other membrane-bound organelles.
The cell is surrounded by a cell membrane and a cell wall.
The sell is surrounded by a cell membrane, but not a cell wall.
Answer:
aw w
Explanation:
aw w
A man who carries an allele of an X-linked gene will pass it on to
Explanation:
A man passes on his Y chromosome to all of his sons and his X chromosome to all of his daughters. Therefore, the sons of a man with an X-linked dominant disorder will not be affected, but all of his daughters will inherit the condition. A woman passes on one or the other of her X chromosomes to each child.
. Describe it in your own words
Answer:
the cycle of the re-growth and how nitrogen affects the elements around us
Explanation: I really just wanted to know if this would help you. hope it did.
Select the goals of conservation agriculture.
Answer:
Explanation:
Sustainable agricultural practices are intended to protect the environment, expand the Earth's natural resource base, and maintain and improve soil fertility. Based on a multi-pronged goal, sustainable agriculture seeks to: Increase profitable farm income. Promote environmental stewardship.
Chickens that carry both the alleles for rose comb (R) and pea comb (P) have walnut combs, whereas chickens that lack both of these alleles (that is, rr pp) have single combs. From the information about interactions between these two genes, determine the phenotypes and proportions expected from the following crosses:
a. RR Pp × rr Pp;
b. rr PP × Rr Pp;
c. Rr Pp × Rr pp;
d. Rr pp × rr pp
Answer:
Explanation:
Available data:
There are two diallelic genes that code for chickens combDominant alleles R and P express rose comb and pea comb, respectivelyWhen they are together in a genotype, they express walnut combs, R-P-Recessive alleles are r and pGenotypes with only recessive alleles express single combs, rrppSo, genotypes and phenotypes would be like
Walnut combs, RRPP, RrPP, RRPp, RrPp (One dominant allele of each gene)Rose comb, RRpp or Rrpp (only R gene with dominant allele)Pea comb, rrPP or rrPp (Only P gene with dominant allele)Single combs, rrpp (no dominant alleles at all)a) Cross: RR Pp × rr Pp
Phenotypes: Walnut x Pea
Gametes) RP, Rp, RP, Rp
rP, rp, rP, rp
Punnett square) RP RP Rp Rp
rP RrPP RrPP RrPp RrPp
rP RrPP RrPP RrPp RrPp
rp RrPp RrPp Rrpp Rrpp
rp RrPp RrPp Rrpp Rrpp
F1) 12/16 = 3/4 R-P-, Walnut-combed animals
4/16 = 1/4 Rrpp, Rose-combed animals
b. Cross: rr PP × Rr Pp
Phenotype: Pea x Walnut
Gametes: rP, rP, rP, rP
RP, Rp, rP, rp
Punnett square) RP rP Rp rp
rP RrPP rrPP RrPp rrPp
rP RrPP rrPP RrPp rrPp
rP RrPP rrPP RrPp rrPp
rP RrPP rrPP RrPp rrPp
F1) 4/16 = 1/4 = 25% RrPP, Walnut-combed animals
4/16 = 1/4 = 25% rrPP, Pea-combed animals
4/16 = 1/4 = 25% RrPp, Walnut-combed animals
4/16 = 1/4 = 25% rrPp, Pea-combed animals
1/2 = 50% Walnut-combed animals, R-P-
1/2 = 50% Pea-combed animals, rrP-
c. Cross: Rr Pp × Rr pp
Phenotype: Walnut x Rose
Gametes: RP, Rp, rP, rp
Rp, rp, Rp, rp
Punnett square) RP Rp rP rp
Rp RRPp RRpp RrPp Rrpp
Rp RRPp RRpp RrPp Rrpp
rp RrPp Rrpp rrPp rrpp
rp RrPp Rrpp rrPp rrpp
F1) 2/16 = 1/8 RRPp, walnut
2/16 = 1/8 RRpp, Rose
4/16 = 2/8 RrPp, Walnut
4/16 = 2/8 Rrpp, Rose
2/16 = 1/8 rrPp, Pea
2/16 = 1/8 rrpp, single
6/16 = 3/8 walnut, R-P-
6/16 = 3/8 rose, R-pp
2/16 = 1/8 Pea, rrP-
2/16 = 1/8 Single, rrpp
d. Cross: Rr pp × rr pp
Phenotype: Rose x Single
Gametes) Rp, rp, Rp, rp
rp, rp, rp, rp
Punnett square) Rp Rp rp rp
rp Rrpp Rrpp rrpp rrpp
rp Rrpp Rrpp rrpp rrpp
rp Rrpp Rrpp rrpp rrpp
rp Rrpp Rrpp rrpp rrpp
F1) 8/16 = 1/2 = 50% Rrpp, Rose-combed animals
8/16 = 1/2 = 50% rrpp, single-combed animals
Which of the following is NOT one of the key characteristics of a well-designed test?
A) standardization
B) reliability
C) validity
D) brevity
Answer:
D) brevity
Explanation:
A test can be defined as an examination or quiz given to a student (pupil) during an academic calendar in order to measure or determine his or her intelligence. It is usually graded based on a set of defined grades or scores.
The key characteristics of a well-designed test includes the following;
I. Standardization: it is important that test is set based on certain criteria and acceptable rules within the education community and curriculum.
II. Reliability: the questions contained in a test should be credible and backed by correct answers.
III. Validity: the test questions should be genuine and authentic across board.
However, brevity simply means succinctness or conciseness i.e the test should be brief and very short in duration.
meaning of epidemic virus pandemic
A pandemic is defined as “an epidemic occurring worldwide, or over a very wide area, crossing international boundaries and usually affecting a large number of people”. The classical definition includes nothing about population immunity, virology or disease severity.
By this definition, pandemics can be said to occur annually in each of the temperate southern and northern hemispheres, given that seasonal epidemics cross international boundaries and affect a large number of people. However, seasonal epidemics are not considered pandemics.
Answer:
The meaning of this answer is...
AN EPIDEMIC is a disease that affects a large number of people within a community, population, or region. A PANDEMIC is an epidemic that's spread over multiple countries or continents.