Answer:
The conditions under which a particular enzyme is most active are called the optimum conditions
Explanation:
When an enzyme is most active the rate of the biological reaction it catalyses is highest. The bacterium Thermus aquaticus lives in hot springs. Its enzymes have an optimum temperature of around 70 oC.
which is true regarding the process of meiosis I?
A) chromosome Number is reduced from diploid to haploid
B) sister chromatids in a cell undergoing are always identical
C) Most homologue pairs do not have any crossovers during prophase I
D) sister chromatids separate to opposite ends of the cell
Answer: The correct option is A (chromosome Number is reduced from diploid to haploid)
Explanation:
In sexual reproduction, offspring are produced by fusion of two different sex cells which usually come from two different parents. These sex cells are know as gametes.
Meiosis is a type of cell division that gives rise to gametes in which the chromosome number is halved. Thus, the gamete cell is said to contain a haploid number (n) of chromosomes.
A diploid cell has two sets of chromosomes: one from the male parent and the other from the female parent. When a diploid cell undergoes meiosis the following occurs:
--> the chromosomes replicate once and
--> the nucleus and cell duplicate ( divide equally) twice.
As a result, the diploid parent cell gives rise to four haploid gamete cells. Therefore the statement "chromosome Number is reduced from diploid to haploid ' is true concerning meiosis I.
In the cross Bb x Bb (two heterozygous mice), what percentage of the offspring would you predict to have the same phenotype as the parents? 0% 25% 50% 75% 100%
Answer:
75%
Explanation:
A phenotype refers to observable traits of an individual, such as eye color, height, and blood type. Some traits are also determined by environmental factors.
A phenotype refers to the physical characteristics of an organism.
In the cross Bb x Bb (two heterozygous mice), 75% of the offspring would you predict to have the same phenotype as the parents.
Answer:
75%
Explanation:
Brown hair is dominant over blonde hair. Could two brown hair people have a blonde haired kid? Explain
What would be the possible offspring phenotypes if two brown hair people did have offspring.
Answer:
Two people with brown hair could have a child with blonde hair, but only if they are both heterozygous.
PLEASE HELP ME!!
These notes were taken during a class about biological evolution, but the subject title is missing.
-results from immigration
-new genes brought into a population
-variation in a population increases
What do the notes describe?
gene flow
natural selection
genetic drift
mutation
Answer:
gene flow
Explanation: you can call gene flow migration as long as it involves fertile individuals or gametes
POSSIBLE POINTS
Absorbs dead matter, has chitin in cell walls, and is heterotrophic This organism belongs in which Kingdom?
Answer:
Fungi
Hope this helps!!!
What proportion of people who are infected with polio develop neurological problems?
Answer:
...
Explanation:
HELP PLEASEEEEEEE guys
Answer:
Explanation:
VE RAPIDO ES LA RESPUESTA B
Which statement correctly identifies structures 1 and 2
in the diagram?
A. Structure 1 is an unstable atom that turns into
structure 2, a new atom.
B. Structure 1 is a stable element that breaks down into structure 2, an unstable element.
C. Structure 1 is a radioactive element that loses particles to create structure 2, released energy.
D. Structure 1 is a radioactive atom that decays into
structure 2, half of the original unstable element.
Answer:
A
Explanation:
Took the test :)
Answer: a.
Explanation:
In an ecosystem, there is a transfer of energy from one organism to the one eating it. This transfer allows the animal doing to eating to gain what percentage of the energy from the animal it ate?
Answer:
yes, baby
Explanation:
;)
A. How do tropical rainforest ecosystems differ from other forest ecosystems?
They have less biodiversity and less light that reaches the forest floor than other forest ecosystems.
B. They receive more rainfall and have warmer average temperatures than other forest ecosystems.
C. They have warmer average summers and milder average winters than other forest ecosystems.
D. They have more limited areas along coastal areas than other forest ecosystems.
Answer:
C
Explanation:
Answer:
C
Explanation:
They have warmer average summers and milder average winters than other forest ecosystems.
what is light please tell me
light is a form of energy which gives us the sensation of vision.
hope
this
helps
Answer:
light is light i think or its probably chicken
Explanation:
If you found a cell of unknown origin with a cell membrane, ribosomes and DNA, can the cell be PROKARYOTIC?
Answer:
Yes. both prokaryotic cells and eukaryotic cells have ribosomes, DNA and a cell membrane.
Movement of the particles across the membrane stops when the concentration gradient no longer exists, the particles will continue to diffuse due to random motion
Answer:
Once the concentration gradient no longer exists, particles will continue to diffuse due to random motion.
Explanation:
When there is a permeable membrane between two solutions with different concentrations, the concentration gradient will go from the compartment with more particles to the one with fewer particles to valance the concentrations on both sides of the membrane. Once the concentrations are equal, particles will still randomly move from one side to the other, but the number of particles that move to one side is almost the same as the number of particles that move to the other, so there is still valance and the same concentration in both sides.
(3) (b) The mean concentration of red blood cells in an adult is 5.5 × 106 cells per mm3 1 mm3 = 0.000001 dm3 Calculate the mean number of red blood cells in 1 dm3 Give your answer in standard form.
Answer:
The correct answer is - 5.5*10^12 cells per dm^3
Explanation:
Given:
The mean concentration of red blood cells in an adult = 5.5 × 10^6
or = 5500 000
1 mm3 = 0.000001 dm^3
Solution:
Then, 1 dm^3 = 1000000 mm^3
(55000000 × 1000000) = 5500,000,000,000
= 5.5 × 10^12
Does anyone else answer questions that say they will make you brainliest and then the person never makes you brainleist -_-
Answer:
all the time
Explanation:
Answer:
Yea I don't like it when that happens they normally get reported by someone but....
Explanation:
what does a heterotroph mean?
Answer:
An animal that cannot make its own food.
Explanation:
A heterotroph is an animal or life source that cannot make its own food, so it depends on others things, such as plants or other animals. These types of listings can be as followed :
Carnivores
Herbivores
Omnivores
What is does the Law of Dominance state?
The total amount of all energy in the universe is...
O slightly increasing
O slightly decreasing
O always the same
O always zero
Answer:
Always the same
Explanation:
The first law of thermodynamics, also known as Law of Conservation of Energy, states that energy can neither be created nor destroyed; energy can only be transferred or changed from one form to another. ... In other words, energy cannot be created or destroyed.
Select a location within each of the following biomes and fill in the missing information on the table.
What is the Latitude and Species Richness of the boreal forest (look at attachments)
BioInteractive Biome Explorer
Answer:
Found between 50° and 60° northern latitude. the species richness is 12 million
What tells cells how to make proteins
Answer:
The DNA of the cell tells the cell how to make proteins
Explanation:
Which two taxonomic levels are organisms
most commonly referred?
Answer:
Organisms are commonly referred to according to the two most specific taxonomic levels: genus and species, which are often Latin. This is called binomial nomenclature.
Explanation:
What is Global Warming? Increasing temperature in Earth's atmosphere. ооо Decreasing temperature in a city Increasing rain rates in Earth. O Decreasing temperature rates.
Answer:
Increasing tempeeature in earths atmosphere
Is it varration , overpopulation or adaption On average, sea turtles lay about 110 eggs in a clutch. However, only a fraction of the baby turtles make it to the ocean. Then, an even smaller number have offspring of their own.
Answer: this is adaptation, but not in the way suggested in the question.
Explanation:
The question is suggesting that the 1% or so of turtle hatchlings that make it to maturity are the result of a variation that gives a selective advantage. This is not so. The only thing being selected for is sheer luck. The underlying adaptation is that all eggs hatch within a short period, so that predators are overwhelmed by numbers and some offspring by chance make it to the water, still dangerous, but less so than the sand. After the hatchlings reach the sea chance will still be a factor, but it is at this stage that natural selection may operate on advantageous variations.
There are two reproductive strategies, common to plants as well as animals. Turtles represent one of those strategies, which is to invest resources to produce large numbers of immediately self-sufficient offspring so that at least some will survive. The other strategy is to produce one or few offspring and invest resources in protecting and feeding it or them until self-sufficient and capable of surviving to maturity.
These are adaptations which are selected for because they confer advantage for the species concerned. One or the other may be the better solution depending on the species. Mammals, for example, invest in the latter strategy.
What are two genotypes that could produce a dominant phenotype?
Answer:
A homo-zygous dominant genotype and a heterozygous genotype
Explanation:
A homo-zygous dominant genotype refers to a genotype that contains two copies of the dominant gene variant, i.e., two dominant alleles at its locus, thereby individuals carrying this genotype will show a dominant phenotype. Moreover, a heterozygous genotype is a genotype that contains both dominant and recessive alleles at its locus. In a heterozygous genotype, the dominant allele is always expressed and masks the recessive allele, thereby showing a dominant phenotype.
how sclerenchyma tissues are important for plant though they are dead tissue ?
Answer:
Hey friend !!!
The cells of sclerencyma are without nucleus and protoplast....they are dead cells..
They provide mechanical support to organs of the plant body....
Hence they are important for plants....
Answer:
Sclerenchyma tissues are tissues that makes up parts of the plants that are hard. Like the nuts and covering seeds etc, These tissues have a hard thickness providing agent called lignin and lignin makes the cell wall too hard the sometimes the cell contains nothing. This cell mainly provides mechanical support to the plant
Olivia was reading about the Earth's history. She grew interested in the Quaternary period in the Cenozoic era and studied it further. The Quaternary
period is best known for which two major events?
A. the rise of reptiles and flowering plants
O
B. the rise of mammals and swimming mammals
O
c. the ice ages and the rise of humans
O
D. the rise of dinosaurs and other reptiles
Answer:
oh yeah daddy
mink ,
Explanation:
Answer:
B
Explanation:
The Cenozoic era was known to be called the age of mammals, because the largest land animals have been mammals during that time. Meaning Mammals that swim would also be living during that time with land mammals.
fill in the blanks with the word that best completes the analogy
10. DNA is to T as RNA is to ___
11. DNA is to deoxyribose as RNA is to___
HELP ME PLEASE I WILL GIVE BRAINLIEST IF CORRECT AND EXTRA POINTS I CANNOT FAIL THIS SCIENCE TEST.
Which statement describes the amount of energy passed to the hawk in the energy pyramid above
A. The hawk has 50 percent of the energy available to it.
B. The hawk has the least amount of energy available to it.
C. The hawk has the most amount of energy available to it.
D. The hawk has no energy available to it.
I took this before the answer is B
Answer:
the answer is B
Explanation:
this is sooooooooooo easy
What are some negative impacts of carbon storage in ocean water and
how this might affect humans?
Which layer of the rainforest usually receives the most direct sunlight?
the understory
A. the canopy layer
B. the forest floor
C. the emergent layer
D. the understory
Answer:
The emergent layer
Explanation:
This part of the forest has high tree tops
Answer:
The layer that get the most sunlight is the emergent layer.
Explanation:
the reason that is the awnser is the emergent layer is the highest part of the tree.