Answer:
The pumping of the heart involves the alternate contraction and relaxation of the chambers of the heart. The upper chambers of the heart are called at atria and the lower chambers of the heart are called ventricles.
draw a flow chart showing the spread of disease.
Answer:
hello
Explanation:
can you please tell me which disease
Which concept is illustrated in the flowchart below?
Overproduction arrow pointing Struggle for survival arrow pointing Survival of the fittest arrow pointing Changes in traits of species
Dynamic equilibrium
Genetic manipulation
Material cycles
Natural selection
Answer:
Natrual selection
Explanation:
your welcome girlies <333
The concept illustrated in the flowchart is Natural selection. The correct option is 4.
What is natural selection?Natural selection is the process by which species evolve over time as the prevalence of certain traits increases or decreases in a population.
Natural selection, the mechanism by which species evolve over time, is depicted in the flowchart.
Overproduction of offspring causes competition for limited resources, resulting in a struggle for survival.
Based on their inherited characteristics, some people are better equipped to survive and reproduce than others.
These people are said to be "fit," and they are more likely to pass on their positive traits to their children. These advantageous traits become more common in the population over time, causing changes in the species as a whole.
Thus, the correct option is 4.
For more details regarding natural selection, visit:
https://brainly.com/question/2725702
#SPJ3
Your question seems incomplete, the probable complete question is:
What is the control for “which bait works best for a homemade fly trap?”
Answer:
A glass of water or an empty cup
Explanation:
If no flies are attracted, that means your experiment is not flawed.
An organism and its taxonomic key are shown below.
An image of an organism is shown. The organism has two body regions with four legs on each side. 3 mm is written next to the image of the organism. There are no claw-like pinchers.
Taxonomic Key
Step Characteristic Organism
1 8 legs Go to step 2.
More than 8 legs Go to step 3.
2 One body region Go to step 4.
Two body regions Go to step 5.
3 One pair of legs on each body segment Centipede
Two pairs of legs on each body segment Millipede
4 Less than 1 millimeter long Mite
More than 1 millimeter long Tick
5 Claw-like pinchers Go to step 6.
No claw-like pinchers Spider
6 Long tail with a stinger Scorpion
No tail or stinger Pseudoscorpion
Which organism is shown in the image?
Millipede
Spider
Scorpion
Tick
spider has no tail and has no stinger
Answer: its a spider
Explanation: cause it case a legs and it has two body regions
Why does deposition typically occur on the inside of the curve of a meandering stream?
1 . Water velocity decreases
2. Stream gradient increases
3. Water is deeper
4. Stream is narrower
Answer:
water velocity decreases
Explanation:
Sediment deposition will occur along the inner meander bends where the velocity is low.
Which of the following describes a cnidarian with a polyp body form?
a tube-like body attached to a firm surface with tentacles on the opposite side of the attachment, surrounding the animal's mouth
an animal with a body lacking tissue
a body shaped like an umbrella that is capable of swimming and has tentacles hanging below it
an animal body that digests food intracellularly rather than extracellularly within a gastrovascular cavity
Answer:
a tube-like body attached to a firm surface with tentacles on the opposite side of the attachment, surrounding the animal's mouth
Explanation:
A polyp is a type of body structure that a cnidarian can assume. The cnidarians, in turn, are invetebrate animals of aquatic life. This group of animals includes jellyfish, corals and sea anemones.
In polyp form, cnidarians are not actively moving, although some do move when they feel threatened. This is because they appear as a tubular structure, with one end fixed to the sea floor. The other end presents the animal's mouth, which is surrounded by tentacles that are responsible for capturing the prey needed for food.
Answer:
a tube-like body attached to a firm surface with tentacles on the opposite side of the attachment, surrounding the animal's mouth
Explanation
it's correct
Hyperscience is...
1. Genetically modifying plants.
2. quickly producing new plant varieties.
3. growing plants using new technology.
4. responding to the horticulture market.
Answer:
2
Explanation:
Why are amphibians considered as unsuccessful land vertebrates
Which circumstance can cause positive
population growth?
A.
The immigration rate is lower than the death rate.
© B. The death rate is higher than the birthrate.
O C. The birthrate is higher than the death rate.
• D. The emigration rate is the same as the birthrate.
Answer is birthrate D
Answer:
C
Explanation:
When the birthrate is higher than thedeathrate
match each term to its definition
a steam of plasma
Answer:
The solar wind is a plasma, a stream of charged particles (ions and electrons) that are continuously escaping from the Sun into the interplanetary medium.
According to the ESRT, the rate of temperature increases below the Earth's surface is greatest between depths of
Answer:
Between depths of tectonic plate boundaries and the outer core.
Explanation:
The rate of temperature increases below the Earth's surface is greatest between depths of tectonic plate boundaries and the outer core. At the depth, some of the heat comes from the Earth's core while most of the heat comes from decay of radioactive elements, mainly uranium, thorium and potassium that is located in rocks of the crust. So we can say that the the increase in temperature with depth varies with the chemical composition and age of the rocks.
Comets travel in orbits around the Sun. Some comets take less than 200 years to orbit the Sun. They are called short-period comets. Short-period comets are thought to originate in the Kuiper Belt, which is a belt of icy objects just beyond the orbit of the planet ______ The dwarf planet _______ is located in this belt.
Answer:
Comets travel in orbits around the Sun. Some comets take less than 200 years to orbit the Sun. They are called short-period comets. Short-period comets are thought to originate in the Kuiper Belt, which is a belt of icy objects just beyond the orbit of the planet ___Neptune___ The dwarf planet ___Pluto____ is located in this belt.
Explanation:
The graph below shows the number of sunspots observed between 1750 and 2000.
Based on the graph, which of these statements is most likely correct about the period between 1900 to 1950? (2 points)
A. There was a decrease in global temperatures.
B. There was an increase in global temperatures.
C. There was no significant change in global climate.
D. There was no significant change in solar activity.
9. The organs which are incompletely developed (rudimentary) and generally non-functional or without any use are called vestigial organs. Which of the following is a vestigial organ? a. Intestinal villi b. Papillae c. Vermiform appendix d. None of the above
Answer:
Vermiform appendix is answer maybe
One moth population carries three alleles at a genetic locus: X1, X2and X3. X1is dominant to X2and X3; X1produces red antennae. X2is co-dominant to X3; X2X2produces yellow antennae, X3X3produces white antennae, and X2X3produces light yellow antennae. The phenotypes in a population are as follows: 0.04 white; 0.16 light yellow; 0.16 yellow; 0.64 red.Assuming that this population is in Hardy-Weinberg equilibrium, what is the frequency of the X3allele in this population
Answer:
The correct answer is - 0.20
Explanation:
According to Hardy Weinberg equation under specific conditions the frequencies of the allele in the gene in a given population remain constant. Thus according to this frequencies of allele and genotype will remain the same through the generation unless there will be no evolutionary influence.
It helps us to predict the genotype frequencies in a large population. If there are two alleles having allelic frequencies p and q and we know equation of probability and frequencies add to 1
p2+2pq+q2=1
The X3X3 genome produces white antennae. Now Phenotypic frequency of the white antennae is 0.16 or 0.04 in the whole population. Hence the frequency of X3 should be a square root of 0.04 i.e, 0.20.
Which of the following describe proteins? Check
all that apply.
O a large class of molecules made up of sugars
a type of molecule that can initiate or assist
other processes in the body
O a large class of molecules made up of amino
acids
O a molecule that stores the information for the
creation and functioning of cells
Answer:
a large class of molecules made of amino acids...since amino acids are the smallest particles that make up proteins.
I hope this helps
Answer: For the multiple choice the answers are B and C
Explanation: Just had this question in class
A millimeter, a meter, and a kilometer are all measures of distance. What is
another way to classify them?
O A. U.S. customary units
B. Measures of mass
C. Measures of volume
D. Metric units
Answer:
I think the correct answer is D
Amphibians are not completely free to live on dry land because they can escape from predators by jumping into the water. their food organisms live in water. they obtain oxygen from water through gills. their reproduction depends on water. their ancestors were fish.
Answer:
they obtain oxygen from water through gills
Explanation:
Amphibians are a group of organisms renowned for their ability to live on land and water. They include frogs, toads etc. Despite their numerous adaptive features that enable them to survive on land, they can still not live independently of water or aquatic environment.
This is because a stage of the life cycle of most amphibians require water for respiration via their GILLS. Amphibians in their juvenile stage e.g. tadpoles rely on water for them to breathe. Adult amphibians make use of lungs and skin for respiration.
In mammalian eggs, the receptors for sperm are found in the A) fertilization membrane. B) zona pellucida. C) cytosol of the egg. D) nucleus of the egg. E) mitochondria of the egg.
Answer:
zona pellucida
Which statement best describes an increase in biotic potential?
O Deer increase their rate of reproduction on an island.
Rabbit population increases in a grassland biome.
O Lions have larger broods and decrease hunting.
Seals have more offspring when food is scarce.
Answer:
i picked deer and rabbit and got it wrong ??? i need help
Explanation:
which best describes a bacterium
Answer:
Bacteria
Bacteria are a type of biological cell. They constitute a large domain of prokaryotic microorganisms. Typically a few micrometres in length, bacteria were among the first life forms to appear on Earth, and are present in most of its habitats. Wikipedia
Explanation:
a member of a large group of unicellular microorganisms which have cell walls but lack organelles and an organized nucleus, including some that can cause disease.
When trees are uprooted and the land left bare what happens to the rain water?
Explanation:
when trees are cut down, the bare surfaces left behind absorb more heat than the forest they replaced.And that heat helps draw air upward, pulling moist air in from nearby forested land that increases rainfall in the immediate area.
Số lượng tế bào vi khuẩn E.Coli sau nuôi cấy thu được 32.104 tế bào. Thời gian để VK phân chia tăng số lượng tế bào, biết số lượng tế bào ban đầu cấy vào là 104, thời gian thế hệ của VK ở 400C là 20 phút.
QUESTION
All the following statements support the theory that similar organisms have a common ancestor except...
CHOICES
a. groups of organisms display similar embryonic development
b. transitional fossils show links between groups of organisms
c. similar DNA patterns occur in closely related organisms
d. organisms sharing a habitat tend to develop similar behaviours
Answer:
similar DNA patterns occur in closely related organisms
Each allele for a gene is found on a separate _____________.
A. gene
B. heterozygous chromosome
C. homologous chromosome
D. nucleus
Answer:
Homologous chromosome
Explanation:
Whch part of reproductive system produces semen
Harry is doing a research project on the movement of plants from the ocean to land. He leaned that plants evolved
vascular tissues, which enabled them to pull water from the ground and survive on land. Which is most likely
another adaptation that contributed to the success of land plants?
cell walls?
chloroplasts
waxy cuticle
gametes
Answer:
Waxy Cuticle
Explanation:
Waxy Cuticle retains water. It's the closest in terms of surviving on land. For instance, the plants living in water do not need waxy Cuticle to retain or maintain water. The plants on land requires waxy Cuticle because the temperature is hotter than in the water and they are at higher risk of loosing water during hot seasons and climate. waxy Cuticle aids in their water retention allowing them to adapt to live on land.
HELP MEE, (Not a quiz)
sler Test
Select the correct location on the image.
Identify the position on the graph that gives the carrying capacity of the population.
population
y 1
2,000
1,500
Population Size
1,000
500
0
6
24
12 18
Time (months)
Reset
Next
First, there is a need to understand what the carrying capacity is as it relates to the environment:
Carrying capacity refers to the maximum number of individuals of a particular species that and environment can support based on the resources it has. The population of a species in an environment grows and oscillates around the carrying capacity of the environment.Now let us look at the graph. The population size grew from 0 and then leveled off at 2,000 with time. The leveling-off also happened without any oscillation, meaning that the maximum population size the environment can support is 2,000.
Hence, the portion on the graph that indicates the carrying capacity would be the plot where the population size is 2,000 and the time being between 12 and 18. This has been circled and labeled as 'K' in the attached image.
More about carrying capacity can be found here: https://brainly.com/question/20270121
Answer:
2,000
Explanation:
Right on Plato ;)
Which of the following statements is true?
(A) Flavr Savr tomatoes are still commercially succesful.
(B) A large percentage of US crops are currently genetically engineered.
(C) Glyphosate kills all plant life, even genetically altered plants.
(D) None of these are true.
Answer:
B) A large percentage of US crops are currently genetically engineered.
