fill in the blanks below with the proper label or vocabulary word that matches each stage
The most important minerals needed by plants are _____
compound A. Protein B. Nitrogen
Answer: Nitrogen
Explanation:
Choose each correct statement below.
a. The gastrodermis contains various cell types and develops from the endoderm during development.
b. The gastrodermis is associated with movement of cnidarians.
c. The epidermis contains various cell types and develops from the endoderm during development.
d. The epidermis is associated with sensing the environment and prey capture.
Answer:
a. The gastrodermis contains various cell types and develops from the endoderm during development.
d. The epidermis is associated with sensing the environment and prey capture.
Explanation:
Most cnidarians have two layers of cells organized into some luck of tissues that have specific functions.
Cnidarians' body organization is simple: It is a hollow structure composed of two cellular layers: epidermis, which is the external layer, and gastrodermis that is the internal layer, formed by lining cells in the gastrovascular cavity. Between these two layers, place the mesoglea that varies from a thin non-cellular membrane to a mucous, fibrous, thick membrane with amebocytes.
Epidermis and gastrodermis originate from two embryonic tissues, the ectoderm, and the endoderm, respectively.
The epidermis has five types of cells with different functions: epitheliomuscular, interstitial, cnidoblasts, secretors, and sensorial.
Gastrodermis is composed of cells such as nutritive cells, glandular enzymatic cells, secretory cells, and sensory cells.
What is the importance of living systems?
HELP!!!!
Blood type AB evidence is considered-
A) Individual
B) Class
C) Circumstantial
D) Direct
Answer:
hey u blocked me pliz unblock me yer
Explanation:
Answer:
A
Explanation:
im not 100% sure
What does polar ice do to much of the incoming sunlight?
Answer:
Arctic sea ice keeps the polar regions cool and helps moderate global climate. Sea ice has a bright surface; 80 percent of the sunlight that strikes it is reflected back into space. As sea ice melts in the summer, it exposes the dark ocean surface.
Explanation:
A phycologist is interested in testing the claim that the proportion of algae from a local rivulet that belonged to the particular phylum cyanobacteria is at least half. A random sample of 50 alga was obtained and each alga was categorized as either being cyanobacteria or not. It was found that 38 were, in fact, cyanobacteria. The test statistic for this hypothesis test is...
Answer:
The test statistic for this hypothesis test is - 3.68.
Explanation:
A test statistic is a random variable that is calculated from sample data and used in a hypothesis test. You can use test statistics to determine whether to reject the null hypothesis. The test statistic compares your data with what is expected under the null hypothesis.
Sample proportion = 38/50
= 0.76
Hence,
Test statistic
[tex]= \frac{0.76-0.50}{\sqrt{0.50*0.50/50}}[/tex]
= 3.68
While they aren't spiders, Grandaddy Long legs, Horseshoe Crabs, and
Scorpions all belong to this group of organisms. *
Insecta
Crustacea
Arachnida
Nemertea
wait i may be dum but it sounds like your stating something rather then asking.. could you maybe reword the question?
PLEASE HELP ME
How might a plant population be affected by the construction of a road through a forest? In your answer, consider how things such as pollution from automobiles, runoff from roadways, or an increase in sunlight might affect the plant populations that live in the forest.
Answer:
In addition to fragmenting habitat, constructing a road alters the habitat. When a road runs through a forest, it creates an edge habitat along the portion of the forest that fringes the road. ... Through altering the habitat and creating an edge, roads can impact animals even when direct mortality is not a result.
Explanation:
Plzzz help I’m sooo confusseeddd
Answer:
Explanation:
allows more people to be president
ccording to Sir Isaac Newton, gravity depends on two factors. What are they?
Answer:
Mass and distance.
Explanation:
Gravity is considered to be a universal force of attraction which acts between all objects that has both mass, energy and occupy space. Therefore, it acts in such a way as to bring objects together.
Additionally, the gravity of earth makes it possible for all physical objects to possess weight.
Newton's law of universal gravitation states that the force of attraction (gravity) acting between the Earth and all physical objects is directly proportional to the Earth's mass, directly proportional to the physical object's mass and inversely proportional to the square of the distance separating the Earth's center and that physical object.
According to Sir Isaac Newton, gravity depends on two factors and these are mass and distance.
PLEASE HELP PLEASE!!!!!
why is it difficult for scientists to study the mechanism of evolution
Answer:
Because evolution is not a simple process and it is hard to accurately determine how a species evolved or what the species evolved from.
All stories must have words.
A. True
B. False
Answer: False
Explanation: Because a story can be told with actions or signals.
Answer:
False
Explanation:
Stories can be told with an object or a series of photos not exclusively words. I hope that this helps :)
What temperature system is used by most of the world
Answer:
The temp system used by most of the world is Celcius
Answer:
The metric system, including Celsius, is the official system of measurement for almost all countries in the world. Most scientific fields measure temperature using the Celsius scale. Zero degrees Celsius is the freezing point of water, and 100 degrees Celsius is the boiling point of water.
Explanation:
What the consequences would be if the entire water surface was covered with water lilies
Answer: There can be a ton of damage done if water lilies overgrow.
Explanation:
Water lilies protect the organisms under the body of water and provide shade to the plants and organisms underneath. These are very important for organisms, as they also provide a place to rest. But if the entire water surface were to be covered with water lilies, this would be a major problem, because sunlight would have no way of reaching below the surface, and this would decrease oxygen levels for plants and organisms. Without air and sunlight, plants will start to die and organisms of the body of water will also start to die because of no air to breathe. Also, overgrowth of water lilies causes water stagnation and leads to excessive algae blooms. The stagnant water attracts insects like mosquitoes, cockroaches, termites, and more pests which can harm plants and organisms.
Consider a population of 1001 gray wolves. In this population, a single locus determines coat color. This locus has two alleles and is incompletely dominant, so that the gray/gray genotype is gray, the gray/white genotype is light gray, and the white/white genotype is white. You observe the following counts of each genotype: 458 (gray/gray), 391 (gray/white), and 152 (white/white). What is the frequency of the white colored allele (give your answer to two decimal places)
Answer:
The frequency of the white-colored allele is q = 0.38
Explanation:
Due to technical problems, you will find the complete explanation in the attached files
which of the following is an example of potential energy?
Answer:
B.) The energy a spring has by being compressed
Explanation:
yessir
According to cell theory which activity is impossible?
a) Skin cells forming from sunlight.
b) Ribosomes being present in eukaryotes
c) Liver cells forming from liver cells
d) Prokaryotes existing by themselves
a) Skin cells forming from sunlight.
According to cell theory, cells forming by themselves is impossible. They can only be formed when another cell divides.
Please mark Brainliest if this was helpful!
Which observation best explains how the landform in the image was created ! PLEASE HELP !!!!!!!
Answer:
dreams have been formed through the process of erosion
Explanation:
because it looks like little water streams cutting through the rock so it must have been eroded
What genetic trait allows organisms to survive natural selection in their
environments?
Answer:
Adaptations
Explanation:
function of nervous tissue
Signals from nearby cells on how to differentiate are examples of an:
internal cue
external cue
Answer:
External Cue..........
Answer:
I just want points
Explanation:
Mode of Action of the Herbicide DCMU When chloroplasts are treated with 3-(3,4- dichlorophenyl)-1,1-dimethylurea (DCMU, or diuron), a potent herbicide, O2 evolution and photophosphorylation cease. Oxygen evolution, but not photophosphorylation, can be restored by addition of an external electron acceptor, or Hill reagent. How does DCMU act as a weed killer
Answer:
It acts as a weed killer by blocking photosynthesis
Explanation:
Photosynthesis is important to plants because it is their principal form of energy.
When DCMU is introduced to weeds, what it does is to block or slow down the process of photosynthesis. Carbon dioxide fixation is slowed down causing weeds to die off. DCMU strongly slows down photosystem II. When this is done, lipid and protein membranes would get destroyed and the weed cells would begin to dry and shed off
Which of the following represents the structure of messenger RNA?
Answer:
First option
Explanation:
AUGC are the bases of RNA.
The English moth, Biston betularia, is often cited as an example of observed evolution. There are two colors of this moth, light and
dark (typica and carbonaria). Kettlewell found that dark moths constituted less than 2% of the population prior to 1848. Then, the
frequency of the dark coloration began to increase. By 1898, the 95% of the moths in Manchester and other highly industrialized
areas were of the dark color. Using the moth example, analyze the events in order to identify support for the statement: natural
selection changes populations, not individuals. Choose ALL that apply.
A)
Variation in the population existed.
B)
Color variation is a result of different gene combinations.
C)
In response to environmental change, moth coloration changed from light
to dark.
D)
Due to natural selection, the ratio of different genetic combinations is
changing
E)
Predator pressure resulted in the light colored genotype being removed
from the gene pool.
Answer:
A,B,C,F
Explanation:
A, B, C and D all of these statements support the idea that natural selection changes populations, not individuals.
What is natural selection?Natural selection is a process by which organisms that are better adapted to their environment are more likely to survive and reproduce, passing on their advantageous traits to their offspring. This leads to changes in the genetic makeup of a population over time, as advantageous traits become more common and less advantageous traits become less common.
Natural selection is driven by environmental pressures, such as predators, competition for resources, or changes in climate. It is a key mechanism of evolution, and helps to explain the diversity of life on Earth and the ways in which different species have adapted to their environments.
Learn more about natural selection, here;
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Early genetic manipulation of petunias included an attempt to engineer dark purple petals. To this end, extra copies of the gene that causes purple pigment was engineered to be produced in the petunia. However, to the surprise of many, the plants carrying the extra copies of the purple gene were completely white or only had patches of color. Molecular analysis revealed that the purple gene was reduced 50-fold in the engineered plants compared to wild type. Provide a possible explanation how this occurred. Also, provide a possible experiment that may overcome this setback
Answer:
The altered pigmentation in transgenic petunia plants is caused by the RNA interference (RNAi) mechanism
Explanation:
The RNA interference mechanism is a naturally occurring mechanism by which single-stranded RNA molecules can bind to complementary mRNAs in order to inhibit gene expression, blocking translation and leading to mRNA degradation. The example above described is a classical genetic experiment (Napoli et al. 1990 ) that showed the existence of the RNAi pathway by the overexpression of a chimeric chalcone synthase (CHS) gene in pigmented petunia flowers, which blocked anthocyanin biosynthesis. In this experiment, irregularly bicolored/white flowers in transgenic petunias containing exogenous pigmentation genes were developed. The co‑suppression of gene expression was produced by the high-copy-number transcription of the CHS transgene, showing the existence of an undescribed RNAi silencing mechanism. Somatic reversion of the altered phenotype can be achieved by restoring the normal mRNA levels for these pigmentation genes, e.g., by a progeny testing in order to eliminate transgenic CHS expression.
PLEASE HELP ASAP!!!!!
Disruptive selection favors which phenotypic traits?
1. sexual
2. directional
3. extreme
4. intermediate
Answer:
3. extreme
Explanation:
In alveoli, tiny air sacs in the lungs, oxygen is absorbed and then transported through the body. The interaction in this example indicates the interdependence of which system?
A skeletal and muscular
B circulatory and digestive
C muscular and respiratory
D respiratory and circulatory
Which word describes organisms in the Kingdom of bacteria
A. Multicellular
B. Prokaryote
C. Unicellular
D. Eukaryote
Answer:
d) eukaryote
Explanation:
all fungi are eukaryotic in nature
Which of the following is found in an Oort Cloud?
O asteroid
O meteor
O comet
O star