Answer:
B. A change in the DNA sequence of a gene
Explanation:
If data for the growth of this bacterial population continued to be recorded, would the data point at 60 hours be above or below 37 million? Support your answer.
3. The leaf relates to ____ because it's cells are numerous in
chloroplast
Answer:
photosynthesis
Explanation:
I know when a hot surface is touch receptors in the hand send a signal to the nervous system the nervous system then sent a signal to the musculine and the arm to contract and move the hand from the hot surface which of these best describes this example
What is rule of dominance?
Answer:
Mendel's law of dominance states that in a heterozygote, one trait will conceal the presence of another trait for the same characteristic. Rather than both alleles contributing to a phenotype, the dominant allele will be expressed exclusively.
Explanation:
Hope this helps:)
When the heart is in fibrillation, A) there is no contraction of the myocardium. B) effective pumping of the ventricles ceases because the myocardial cells fail to work as a team, and the brain cannot get adequate oxygen. C) the myocardial cells may become damaged from contracting too fast. D) the myocardial cells deplete their oxygen supply because they are contracting too fast, and the lactic acid produced damages the myocardial cells. E) the myocardial cells are contracting together as they should; fibrillation indicates a normal sinus rhythm of 75 beats per minute.
Answer:
The correct answer is - B) effective pumping of the ventricles ceases because the myocardial cells fail to work as a team, and the brain cannot get adequate oxygen.
Explanation:
When the heart is in an irregular and rapid heart rate due to chaotic electrical signals in the atrial chambers of the heart which leads to a very fast heart rhythm that shows 100 to 175 heart rate. That leads to failure of the myocardial cells that stop the pumping of the ventricles effectively and therefore blood would not reach the brain and the brain would not get an adequate amount of oxygen. This will result in organisms experiencing faint, blackout or stroke-like complications.
Current wind, solar, nuclear and hydroelectric energy technologies
А
emit carbon dioxide
B
are able to deliver all the energy we need
с
don't have the efficiency and scale we need
D
burn a lot of fossil fuels
whats the relationsip between a front and an air mass
Albino individuals lack all pigmentation so that their hair and skin are white. This pedigree shows that albinism -
Female
Male
1
Albino
Individuals
2
A is a sex-linked gene.
B is carried only by females in this family,
C requires both parents to be albinos.
D is a recessive genetic trait.
Answer:
I -Albino individuals
Plz help!! Will mark brainliest
Answer:
64
Explanation:
8 x 8
Answer:
the area should be 64 because area is length x width, so 8x8=64
DNA controls the structure and function of a cell because...
Answer: it makes up the cell or it’s the to-do of the cell kinda like coding
Explanation:
Photosynthesis occurs in plants in specialized organelles called ____. *
A. Golgi bodies
B. chloroplasts
C. mitochondria
D. lysosomes
Answer:B chloroplast
Explanation:
Answer:
Photosynthesis occurs in chloroplasts
B. Chloroplasts
Explanation:
The DNA sequences of whales and ungulates, or hooved animals, are very similar. What type of evidence of evolution is this?
O vestigial
O molecular
O embryological
fossil
What is a vestigial structure?
Answer:
Structures that have no apparent function and appear to be residual parts from a past ancestor are called vestigial structures. Examples of vestigial structures include the human appendix, the pelvic bone of a snake, and the wings of flightless birds.
Explanation:
please give me brainlist and follow
Answer:
remnant of a structure that may have had an important function in a species' ancestors, but has no clear function in the modern species.
Explanation:
i hope this help
what is the difference between the open-water zone and the deep water Zone
If a gray fly is crossed with a heterozygous black fly, which combination below represents the parental cross?
Answer:
hello your question lacks the required options hence I will give you a general answer
answer : gg ( gray fly ) * Gg ( heterozygous black fly )
Explanation:
Let black body ( G ) be the dominant allele to gray body ( g )
hence the possible combination that will represent a parental cross when a gray fly is crossed with a heterozygous Black fly will be
gg ( gray fly ) * Gg ( heterozygous black fly )
Which condition is NOT a requirement of the Hardy-Weinberg equilibrium?
A. No mutations in a population
B. No net migration of alleles into or out of the population
C. Sexually reproducing and randomly mating in a population
D. Small population with genetic drift
Answer:
D since people need to produce more, producing in a small population with genetic drift is not a requirement Hardy Weinberg equilibrium
what type of cells can be transformed
Answer:
Stem Cells
Explanation:
Stem cells are unspecified or undifferentiated meaning they can turn into any type of cell
Answer:
Stem cells
Explanation:
They can be transformed into any type of cell
PLEASE HELP
Which of the following is not a random occurrence?
A selection of the best-suited traits for the environment, leading to adaptive evolution
Genetic drift changing the gene pool of a population and creating fluctuations in the allele frequencies
The bottleneck effect after an earthquake, resulting in a reduction of genetic variation
The founder effect, when a small population is isolated and the gene pool significantly reduced from the parent population
Answer: A selection of the best-suited traits for the environment, leading to adaptive evolution brainliest
Explanation:
PLEASE HELP ME!!!!
IT IS FOR BIOLOGY!!!
Answer:
d. selective breeding
Explanation:
The transport of water through a plant depends on roots absorbing water. Roots depend on osmosis to obtain water. In osmosis, water always a. Moves from a high concentration to a lower concentration b. Moves from a lower concentration to a higher concentration c. Moves so that the concentration of water on one side of the cell membrane is higher than on the other side d. Moves until there is no water left on one side of the cell membrane
which of these is a plantation crop?
a)Coffee
b)Tea
c)Spices
d)All of these
choose one
Answer:
D) All Of These
Explanation:
Tea, Coffee, and Spices are a plantation crop.
Answer:
the right answer is D all of these
how is population dynamics in animals affected by sewage water release
plzz helppp
Answer:
It may be that synthesis in population dynamics has been slow to emerge because population change is more complicated than it first appears. After all, population change is determined ultimately by only four factors: birth, death, immigration, and emigration.
Explanation:
Research has shown that population size and growth are important factors in the emission of greenhouse gases. ... While population-driven emissions from developed nations are estimated to contribute 42 percent of CO2 emissions between 1985 and 2020, they are expected to contribute only 3 percent between 2025 and 2100.
If sewage is only partially treated before it is disposed of, it can contaminate water and harm huge amounts of wildlife. Alternatively, leaking or flooding can cause completely untreated sewage to enter rivers and other water sources, causing them to become polluted. The consequences aren't great
Factors influencing population growth
+Economic development. ...
+Education. ...
+Quality of children. ...
+Welfare payments/State pensions. ...
+Social and cultural factors. ...
+Availability of family planning. ...
+Female labour market participation. ...
+Death rates – Level of medical provision.
Hoped this helped! <3
What type of trait is the body length?
Use the following dichotomous key to identify an irregular blue flower with five petals and a fruit that is a ripened flower ovary or follicle. Dichotomous Key of Ranunculaceae #1. a. Fruit is a group of alkenes. (go to step 2) b. Fruit is a group of follicles. (go to step 4) #2. a. Petals are not present. (go to step 3) b. Petals are present. (Ranunculus) #3. a. The flower has 4 sepals. (Clematis) b. The flower has 5 sepals. (Anemone) #4. a. The flowers are regular. (Aquilegia) b. The flowers are irregular. (Delphinium) The flower is a: A. Anemone B. Clematis C. Delphinium D. Ranunculus
Question:
Use the following dichotomous key to identify an irregular blue flower with five petals and a fruit that is a ripened flower ovary or follicle.
Dichotomous Key of Ranunculaceae
#1.
a. Fruit is a group of alkenes.............................. go to step 2
b. Fruit is a group of follicles..............................go to step 4
#2.
a. Petals are not present.....................................go to step 3
b. Petals are present............................................Ranunculus
#3.
a. The flower has 4 sepals.................................. Clematis
b. The flower has 5 sepals................................... Anemone
#4.
a. The flowers are regular..................................... Aquilegia
b. The flowers are irregular................................... Delphinium
The flower is a: A. Anemone B. Clematis C. Delphinium D. Ranunculus
Answer:
The species belongs to Delphinium genera.
Explanation:
A dichotomous key is relatively simple to interpret. All you need to do is to:
- carefully observe your organism,
- know some technical terms or have a biological dictionary, and
- follow the descriptions.
The dichotomous key is going to lead you to the answer.
In the example, we have a plant species with irregular blue flowers and five petals. The fruits are a ripened flower ovary or follicles.
Irregular flower: Term that refers to asymmetrical flowers that only have one plane. Follicle: Term that refers to dry dehiscent fruits originated from a flower with only one carpel. When mature, they open by the ventral suture.So, let us begin, step by step. For each number, we are going to have two options (a and b). By knowing our organism, we need to decide which one is correct and follow indications.
#1.
a. Fruit is a group of alkenes.............................. go to step 2.
b. Fruit is a group of follicles..............................go to step 4.
We know that our fruit is a follicle. Option a is not correct (it is not a group of alkenes). Option b is the correct one. Knowing this, we must go to step four. ***Note: In the hypothetical case that the fruits were a group of alkenes, and option a was correct, we should go to step two, as indicated***.
#4.
a. The flowers are regular..................................... Aquilegia
b. The flowers are irregular................................... Delphinium
We know that our flower is an irregular one. So the correct option is b. This option leads us to Delphinium genera. Our species belongs to this taxonomic group. ***Note: In the hypothetical case that the fruit was actually a regular flower, and option a was correct, our species would belong to Aquilegia genera***
What is a mixture where the composition is not uniform
Hello!!
Heterogeneous would be the answer here. The definition of heterogeneous is: composed of dissimilar parts which can be separated easily and which are unevenly distributed in the mixture. So, heterogeneous would be a mixture where the composition is varied.
Hope this helps!!
PLS AWNSER FAST WILL GIVE BRAINLY!!!!!!!!!
what types of of chromosomes are about the same size and contain the same type of genes?
A. Homologous chromosomes
Or
B. Analogous chromosomes
Or
C. Sister chromosomes
Answer:
Homologous chromosomes
Explanation:
Homologous chromosomes are chromosomes which contain the same genes in the same order along their chromosomal arms.
Which of these is NOT a factor contributing to the loss of biodiversity?
a
urbanization
b
climate change
c
planting of trees
d
over exploitation of species
Answer:
Option C
GOOD LUCK FOR THE FUTURE! :)
Planting of trees is not a factor contributing to the loss of biodiversity. Thus, option C is correct.
What is five kingdom classification?
The main purpose of the classification of the Five kingdom has been known R.H. Whittaker. The five kindoms that has were included in this proposal were the Fungi, Protista, Monera.
Animalia as well as the kingdom Plantae. There are mainly five criteria or the conditions based on which the classification has been madeup of. These criteria has been includes the structure of the cell, as well as the nutrition mode, organisation of the thallus, or the relations of reproduction and phylogenetic.
Based on shoe characteristics they were to develop a classification hierarchy of shoes, beginning with the shoe "kingdom" and becoming more and more specific, just like scientists did for the classification of living things.
Therefore, Planting of trees is not a factor contributing to the loss of biodiversity. Thus, option C is correct.
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What’s the answer to this I didn’t mean to click this btw
AYO PLS HELP...... condon amino acids ect
Cancer is caused by __________ in genes that regulate the cell cycle. These mistakes in DNA, cause the checkpoint __________ to not function properly. As a result the cells will spend more time dividing, which is called _____________ rather than in interphase.
Explanation:
cancer cause due to uncontrolled divisions of the cell because of gene mutations or presence of oncogenes which destroy or destabilise the checkpoints that prevent or controll cell division