Answer:
I did the exercise for you, and most of the summary.
Explanation:
My results were 64bpm before exercise, 96bpm directly after exercise, 76bpm 1 minute after exercise, 68bpm 2 minutes after exercise, and 64bpm 3 minutes after exercise. This is because I exercise often, which improves my cardiovascular function/fitness.
I am 19, female, and moderately fit.
Resting heart rate: 64bpm
heart rate directly after exercise: 96bpm (24x4=96)
heart rate 1 minute after exercise: 76 bpm (19x4=76)
heart rate 2 minutes after exercise: 68bpm (17x4=68)
heart rate 3 minutes after exercise: 64bpm (16x4=64)
According to “Past Climate Changes on Earth,” what changes to the atmosphere caused temperatures to increase, making the Eocene such a warm time in Earth’s history?
Answer:
The most important factor was the accumulation of greenhouse gases, especially methane and carbon dioxide.
Explanation:
The Eocene climate began with warming climate at 56 million years ago (Mya) and finalized at around 49 Mya ago. It is believed that during this period the greenhouse gases increased the temperature on the Earth's surface. This hypothesis is supported by evidence that indicates the melting of the ice cap in the poles.
Some individuals who are infected with malaria develop anemia, which is a deficiency of red blood cells.
a) How could anemia benefit these individuals? b) If they have children will the children be anemic?
Answer:
...
Explanation:
Anemia can be benefitial in some cases, because it can help keep you safe from other harmful diseases like tubercuosis. No, it cannot be passed down.
Question 12
Identify and select the the correct vocabulary that correctly describes DNA. Choose ONLY the correct answers, pick 3.
Answer:
I personally answered:
nucleotides with adenine, guanine, cytosine, or thymine are the monomers
thymine base pairs with adenine
guanine base pairs with cytosine
Explanation:
How is Carbon Dioxide abbreviated (shortened)?
Answer:
CO2
Explanation:
Which of the following statements about plant reproduction is TRUE?
a. Plants only reproduce sexually.
b. Reproduction in plants usually requires windy environments.
c. Flower shape, color, and odor can attract animals needed for plant reproduction.
d. Reproduction in most plants requires honeybees to carry pollen from one plant to another.
Answer:
D
Explanation:
A is wrong since plants reproduce sexually and asexually.
B is not logical since plants do not need windy environments for reproduction.
C is not logical either since animals and plants do not reproduce.
D is the most logical answer since honey bees play an important role in pollinating plants and carrying pollen from one plant to another since plants can not move and are autotrophs.
Reproduction in most plants requires honeybees to carry pollen from one plant to another is true about plants reproduction.
What do you mean by plant reproduction?Plant reproduction is the production of new offspring in plants, which can be accomplished by sexual or asexual reproduction. Sexual reproduction produces offspring by the fusion of gametes, resulting in offspring genetically different from either parent.
The parent plants have male and female sex cells, called gametes. The genetic material from the male and female gametes combines to produce offspring. We call this process fertilization. The product of sexual reproduction are seeds.
Plant fertilization is the joining of male and female gametes, resulting in a zygote. The most generalized form of this process requires four steps: pollination, germination, penetration of the ovule, and fertilization.
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Which form of nitrogen is most abundant on earth? N2 (Atmospheric Nitrogen) NH3 (Ammonia) NO2- (Nitrite) NO3- (Nitrate)
Answer:
N2 (Atmospheric Nitrogen)
Explanation:
Nitrogen is a chemical element positioned as 7 on the periodic table. Nitrogen is found as a gas in the atmosphere (N2) and constitutes the most part of the air making it the most abundant gas on Earth.
Atmospheric nitrogen (N2) is the most abundant of its form found on Earth. It can be converted to its compound form e.g. nitrates (a plant usable form) by lightning and some bacteria in the soil.
Predator and prey relationships are an important part of the ecosystem. Explain how the Orcas and leopard seals are tertiary consumers?
When a plant does not get enough water its leaves wilt and stomata are
closed to prevent further loss of water through transpiration. This wilting of leaves and closing of stomata is caused by a growth inhibiting hormone. What is the name of this growth inhibiting hormone that causes wilting of
leaves?
• auxin
• gibberelins
• abscisic acid
Which cellular process creates energy?
A. The conversion of ADP to ATP
B. The breaking of the chemical bond between the 2nd and 3rd phosphate
molecules in ATP.
C. The breaking of lipid chains.
D. The transportation of ions across the membrane.
Thank you!!
Answer:
B. The breaking of the chemical bond between the 2nd and 3rd phosphate
molecules in ATP.
Answer:
The conversion of ADP to ATP if I remember correctly.
1. I represent the number of protons in the nucleus of an element.
Pls tell me the answer its for a word search?!?!?!
Answer:
Atomic Number
Explanation:
The atomic number gives you the number of protons in a given element.
Which would a microscope be LEAST useful in studying?
A. spider
B. amoeba
C. bacterium
D. paramecium
Answer:
A
Explanation:
spiders can be seen with the naked eye
Answer:
A
Explanation:
A spider is large enough to see and observe without a microscope. Bacteria, amoeba and paramecium are all very tiny, and can’t be seen with just our eyes. To see these things, we would need a microscope. Therefore, a microscope would be the least useful when studying A: a spider.
PLEASE HELP I WILL BE GIVING THE BRAINLIEST AND 30 POINTS!!!!!!!!
Mila had looked at diagrams of a plant cell and an animal cell. The book she used showed each stage of cell division. She noticed that during cytokinesis, plant and animal cells divided in a different way so she looked up why. How does cytokinesis differ in plant and animal cells?
A. The animal cell only needs to divide once and pinch off during cytokinesis to form the daughter cells. The plant cell must divide twice in order to form the cell plate and two daughter cells.
B. The plant cell only needs to divide once and pinch off during cytokinesis to form the daughter cells. The animal cell must divide twice in order to form the cell plate and two daughter cells.
C. The cell plate forms in an animal cell that divided the daughter cells and makes the cell membrane and cell wall. The plant cell uses the cell membrane to pinch off the cytoplasm into two daughter cells.
D. The cell membrane in animal cells pinches off the cytoplasm into two daughter cells. The plant cell forms a cell plate that divides the daughter cells and forms the cell membrane and cell wall.
Answer:I think the answer is B
Explanation:
B should be correct!
Hope this helps.
While Congress has the power to create new laws, they can be vetoed by the President. In addition, the Executive Branch must enforce these laws. What two
different constitutional principles are demonstrated by these relationships?
Select one:
A
checks and balances and separation of powers
B.
separation of powers and eminent domain
C
federal supremacy and due process
D.
separation of powers and quartering of troops
Answer:
A, Checks and balances and separation of powers.
Explanation:
Answer:
The correct answer is:
checks and balances and separation of powers
Explanation:
The system of checks and balances refers to instances in which the powers of the branches of government overlap, such as the Executive and the Legislative branch both having some power over the acts passed by Congress. Separation of Powers refers to instances in which separate branches have completely separate responsibilities, as in creating, interpreting, and enforcing the laws. Both of these doctrines are in place to ensure no branch gains too much power.
Why are massive main-sequence stars not
likely to have planets that contain life?
1. The life zones around these stars are too
small.
2. These stars would sweep away all of the
material from which planets could form.
3. These stars are on the main sequence for
too short a time to alllow life to evolve
4. These stars are too hot to allow water to
exist as a liquid on any planets that might
form.
5. These stars are almost always binaries
and planetary orbits are unstable around bi-
naries.
Answer:
5
Explanation:
Study the image.
Which best describes what the picture shows?
an organism
a community
a niche
a population
Answer: a community
Explanation:
an organism is one
a community is a small group
a niche is what the animal does
a population is the entire species
Mutations are triggered by
Answer:
Mutations can also be caused by exposure to specific chemicals or radiation.
Explanation:
(mark as brainliest please)
Answer:
mutations can be triggered by errors during DNA replication, but also environmental contributions, such as uv light from the sun.
Directional selection only occurs in response to naturally occurring events.
Please select the best answer from the choices provided
Тrue
False
Answer:
False
Explanation:
Directional selection is a force in nature that causes a population to evolve towards one end of a trait spectrum. This change happens gradually and is hard to notice over a short period of time. This change is consistent and constant.
Of all the animals in the animal kingdom which one(s) would have the best chance for survival in mountains?
Answer & explanation:
Mountains are large formations of land at high altitudes, where conditions are often difficult. For example, cold weather and food shortages.
In the highest areas of the mountains, animals such as vultures, eagles, hawks and other birds of prey usually prevail.
In addition, it is common for the sides of the mountains to be covered with forests. In these areas it is possible to observe the predominance of animals such as moose, goats, sheep, skunks, llamas and lynx. This group has good climbing skills and manages to stay in the side of the mountains and in some high areas (not as high as the previous group).
Meanwhile, in the lower parts of the mountains, where the forest is denser, it is possible to observe the predominance of snakes, wolves, marmots, foxes, etc.
How do viruses recombine different DNA?
Answer:
The genetic interaction of DNA viruses can result in break-rejoin recombination, in which the two DNA molecules of different viruses break and then cross over. Break-rejoin recombination results in novel progeny viruses with some DNA sequences of both types of parental viruses.
Explanation:
Answer:
the two DNA molecules of different viruses break and then cross over.
Explanation:
Break-rejoin recombination results in novel progeny viruses with some DNA sequences of both types of parental viruses.
Independent assortment is the exchange of genetic material between
homologous chromosomes.
True Or False
Answer:
False
Explanation:
According to Gregor Mendel in his law of INDEPENDENT ASSORTMENT, independent assortment of genes is a phenomenon whereby the segregation of the alleles of one gene into gametes occurs independently of the alleles of another gene i.e. their segregation does not affect/influence one another. Independent assortment occurs in the Metaphase 1 of meiosis 1, where homologous chromosomes randomly align at the equator of the cell. This random orientation of homologous chromosomes determines which chromosome will separate into which gamete.
According to the question, the exchange of genetic material between homologous chromosomes is termed CROSSING-OVER. Crossing over or Recombination occurs during the Prophase I state of meiosis I, where non-sister chromatids of homologous chromosomes exchange a portion of their gene.
Hence, the answer is false because the exchange of genetic material between homologous chromosomes is crossing-over.
What are the 2 major categories of angiosperms?
Answer:
Monocotyledons (monocots) and dicotyledons (dicots)
Explanation:
Answer:
Monocotyledons (monocots) and dicotyledons (dicots).
Explanation:
I don't know if this actually needs an explanation :)
Everyone in Squidward’s family has light blue skin, which is the dominant trait for body color in his hometown of Squid Valley. His family brags that they are a “purebred” line. He recently married a nice girl who has light green skin, which is a recessive trait. Use a Punnett square to determine the possibilities that would result if Squidward and his new bride had children.
List the possible genotypes and phenotypes for their children. *
Can i please have a explenation
All their children will have heterozygous genes because squidward is "purebred", or homozygous dominant. His wife has to be homozygous recessive for a recessive trait to show up. Every time you cross a homozygous dominant trait with a homozygous recessive trait, you will get heterozygous kids. This means all of them will have light blue skin.
You create a punnett square to determine the probability of hair color being passed to
offspring. Brown hair is dominant. Blond hair is recessive. Both parents have brown hair.
Both parents are heterozygous. What is the probability that the offspring will also have
brown hair?
ofteprings Brown hair to de
Answer:
75%, or 3/4's
Explanation:
Parent's genotypes are Bb because they are homozygous & brown hair is dominant. Cross this, and you get the genotypes of the offspring: BB, Bb, Bb, and bb. The proability that offspring will also have brown hair is 3 out of these 4 genotypes, so 75%.
Which of the following is/are true about eukaryotic transcription?
A) RNA polymerases bind directly to the core promoter (TATA box)
B) Transcription factors are required for RNA polymerase ll-dependent transcription
C) RNA polymerase ll transcribes the protein-coding genes
D) Poly-A tail is the last part of transcript synthesis by RNA polymerase ll.
E) rho factor participates in transcription termination
Answer:
Option B is true (Transcription factors are required for RNA polymerase ll-dependent transcription)Explanation:
Option B is correct because many different transcription factors are involved in the eukaryotic transcription, particularly genes transcribe by RNA polymerase II. TFIID, A, B, F, E, and H are general or basal transcription factors of human.
Option A is wrong because RNA polymerase II first bind with the general transcription factor, TFIID. TFIID recognise the TATA box and forms a platform for TFIIB binding.
Option C is wrong because RNA polymerase II transcribe protein coding genes but it also transcribe small nuclear RNAs (snRNAs).
Option D is incorrect because transcription of poly-A tail is synthesized by template-independent RNA polymerase called poly(A) polymerase.
Option E is also incorrect- rho factor or rho-dependent termination is used by bacterial transcription termination process.
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Interphase lasts for
of a cell's life
98%
80%
50%
20%
Please help I need help nowww pleaseeeeeee
Answer:
80%
Explanation:
Animal-like protists, such as Amoeba and Paramecium.
Answer:
Yes Amoeba and Paramecium are considered as animal-like protists
Explanation:
Amoeba and paramecium are considered to be animal-like protists because they are able to move through their habitat, and they gain energy from other sources.
How does soil quality affect the characteristics of ecosystems?
Which claim is supported by significant scientific research?
The diet of leaf-cutter ants is principally
a. leaves
b. fungus
c. saliva-coated leaves
d. fungus-treated leaves
Answer:
it would be B.
Explanation:
Answer:
b. fungus
Explanation:
Factors that limit the growth, abundance, or distribution of an organism or a population are known as
Abiotic factors
Limiting factors
Biotic factors
Environmental factors
