b.infectious disease specialist and virologist
c.zoologist,marine biologist and animal biologist
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.
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.
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:
Which structure helps fish remove oxygen from the surrounding water?
Answer:
Gills
Explanation:
In order to remove oxygen from the water, they rely on special organs called "gills." Gills are feathery organs full of blood vessels. A fish breathes by taking water into its mouth and forcing it out through the gill passages.
www.wonderopolis.org › wonder
How Do Fish Breathe
Answer:
Gills
Explanation:
Antibiotic and vitamins are examples of sac fungi
True or false?
Answer: True
Explanation: Some types of sac fungi are used in the creation of vitamins and antibiotics.
3.
How does mass extinction affect species that survive?
There are no surviving species if a mass extinction occurs.
They fill new roles in the changed environment.
They will soon become extinct.
They combine gene pools.
Answer:
They fill new roles in changed environment
Explanation:
What tells cells how to make proteins
Answer:
The DNA of the cell tells the cell how to make proteins
Explanation:
Magnetic storms are the result of which of the following?
A) a solar prominence
B) an increased number of solar wind particles
C) constant solar wind
D) 10-to 11-year cycling of sunspots
Answer:
Answer: The answer is B, an increased number of solar wind particles. and I don't care if I get brainiest
what are some moons with ice and rocks?
Answer:
There are only two large rocky moons in the Solar System: the Earth's Moon and Io. The other moons have interiors with a varying ratio of ice : rock, and have surfaces that are made almost entirely of ice.
Explanation:
Directions: Identify the kind of relationship shown in the following
Learning Task No.1DO YOU KNOW ME? help pls
Answer:
Food chains?
Explanation:
Predator and preys
Answer:
1. Predation 2. Parasitic 3. Competition 4. Symbiosis 5. Mutualism
Explanation:
Predation- Predator hunting prey Ex: lions hunting gazelle
Parasitic- One organism benefits while the other is harmed Ex: Lice eating Hair
Competition- Organisms fighting over reasources Ex: Hippos fighting for space
Symbiosis- Two unalike organisms form a bond where they both benefit Ex: Birds eating ticks off buffalo.
Mutualism- Two organisms benefit from each other Ex: whale shark getting cleaned by remora fish which get a meal.
What are reactants of cellular respiration
How is the emergence of antibiotic-resistant bacteria an example of natural selection?
Answer:
Because beateria that don't have the antibiotic resistant trait will die much more faster than the ones with antibiotic resistance.
Explanation:
HELP PLEASEEEEEEE guys
Answer:
Explanation:
VE RAPIDO ES LA RESPUESTA B
PLEASE I NEED HELP ASAP!! WILL GIVE BRAINLIEST AND 100 POINTS!!! When you cross two heterozygous organisms, what is the probability that the offspring will show the dominant phenotype? (HINT: You may want to draw a Punnett Square on a separate piece of paper to help.)
A. 100
B. 75
C. 50
D. 25
E. 0
Answer
75% chance
Explanation:
The dominant and recessive are the terms used to explain the phenotypic traits and genetic makeup of an organism. The cross between a heterozygous species will result in a 75% chance of the species expressing a dominant phenotype.
The correct answer is:
Option B. 75%
The heterozygous condition refers to the one dominant and one recessive allele, whereas purebred is the condition in which both alleles are either recessive or dominant.
The dominant alleles are always expressed in purebred and heterozygous conditions.
The recessive alleles are expressed in purebred conditions only.
In the given attachment, consider the cross between round shaped-seeds in heterozygous conditions.
Thus, the chance of progeny will have round-shaped seeds is 75%.
To know more about monohybrid cross, refer to the following link:
https://brainly.com/question/1185199
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.
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 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 carbon emissions responsible for?
Answer:
Carbon dioxide (CO2) makes up the vast majority of greenhouse gas emissions from the sector, but smaller amounts of methane (CH4) and nitrous oxide (N2O) are also emitted. These gases are released during the combustion of fossil fuels, such as coal, oil, and natural gas, to produce electricity.
Explanation:
What can Carbon do?
Carbon emissions affect the planet significantly, as they are the greenhouse gas with the highest levels of emissions in the atmosphere. This, of course, causes global warming and ultimately, climate change. Carbon dioxide is released into the atmosphere when fossil fuels — coal, natural gas, and oil — are burned.
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.
If the code on the template DNA strand is TACGCA the RNA built from that template during transcription would have the sequence type your answer..
Answer:
AUGCGU
Explanation:
According to the base-pairing rule, Thymine (T) always pairs with Adenine (A), and Cytosine (C) always pairs with Guanine (G). In addition, RNA has Uracil (U) in the place of Thymine. Following these two rules, TACGCA is transcribed as follows:
T A C G C A
A U G C G U
Hence, the transcription product of TACGCA is AUGCGU.
adrenocorticotropic hormone
Explanation:
adrenocorticotropic hormone= It stimulates the adrenal cortex.
Answer and i will give brainly
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.
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.
Name the hormone released when the blood glucose concentration is too low
Explanation:
Glucagon
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Answer:
Glucagon is released to stop blood sugar levels dropping too low (hypoglycaemia), while insulin is released to stop blood sugar levels rising too high (hyperglycaemia). The release of glucagon is stimulated by low blood glucose, protein-rich meals and adrenaline (another important hormone for combating low glucose).
Explanation:
hope this help
..mark as a brainlestIf 30% of a DNA sample is composed of thymine nucleotides, what percentage of the DNA sample would be composed of cytosine nucleotides?
Answer:
20%
Explanation:
Pairing do occur between a purine and a pyrimidine base or a pyrimidine and a purine base where Adenine pairs with Thymine and Guanine pairs with Cytosine.
DNA(deoxyribonucliec acid) sample is usually compose of 100% nucleotide base,
Since 30% of the sample section is compose of thymine then Adenine the base pair will also be 30% this is because adenine will always pair with thymine and each will occur in equal quantity. Together, adenine and thymine compose 60% of the segment.
While the remaining 40% of the section is composed of guanine and cytosine pairs and since the two bases will be equal in quantity, 20% of the DNA section will be cytosine nucleotide.
The ONLY way a new allele can enter a population is
Answer:
D. Mutations
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.
The "ribopart in the name deoxyribonucleic acid refers to the a. Rungs of the spiral ladder b. Bonds that hold two strands together C. Sugar component of DNA d. Type of helical arrangement
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.