Symaptric speciation is the formation of new species in populations that live in the same geographic area, while allopatric speciation occurs when the population is separated by a geographcial area. So, according to this: The difference between the sympatric speciation and the allopatric speciation is that sympatric speciation involves a behavioral barrier, while allopatric speciation involves a physical barrier.
state three reasons why children resemble their parents
Answer:
Parents are the only reason our children are alive. Our parents are the reason we exist. Parents try their hardest to take care if their children.
Explanation:
Briefly summarize the structure of moss.
Mosses are bryophytes, primitive plants believed to be among the first to develop the ability to live on land. Moss plants have no vascular tubes to transfer water or nutrients, and no true stems or roots. Environmental water sources and absorption limit moss plant size.
There may be as many as 15,000 species of mosses. Although unique species of moss grow in dramatically different habitats across the planet – from the arctic to the desert – all have basically the same structure.
Basic Moss SporesThe initial moss plant is a spore given off by the sporophyte that forms at the end of the moss plant’s “stem.” Released spores travel long distances on the wind and may remain viable for decades. Moss spores landing in suitable conditions divide and produce hairy filaments called protonemas, which are like thin plant threads that weave across the growing medium. Sprouting from the spore filaments, gametophytes form, held to the surface by rhizoids.
Main Structure of MossThe main moss structure is the gametophyte, which functions like a moss’s “stem” and “leaves.” A moss "stem" is called the axis, and this part of the moss supports leaf-like structures.
Phyllids are the leaf-like structures that carry out photosynthesis, transforming sunlight into sugars the moss uses for food. Typically arranged in a spiral, moss “leaves” are usually one cell thick with ribs two or more cells thick down their centers. The cells of moss plants contain chlorophyll, the green pigment that is essential for the process of photosynthesis.
Does moss have roots? No, not really. Moss stems end in root-like strands called rhizoids, specialized to hold the moss to its growing surface. Rhizoids anchor moss plants to the surfaces they grow on, but they do not absorb water and nutrients like true plant roots.
Second-Generation GrowthThe second moss structure is really a second generation. Moss reproduction occurs sexually, using separate plants produced at different times. The two separate kinds of moss plants are called gametophytes (which produce gametes) and sporophytes (which produce spores).
Gametophytes are tipped with either inverted cone-shaped areas (archegonia) or male reproductive organs (antheridia). Released sperm (antherizoids) need water since they swim to the archegonium. This is one of the main differences between bryophytes and vascular land plants – mosses need water for their sexual reproduction process.
Fertilization occurs once an antherizoid swims to an archegonium. Sprouting from the gametophyte tip after fertilization, a sporophyte holds itself in place by anchoring a foot in the archegonium.
Spore-Bearing PartsThe sporophyte stalk, called the seta, bears the sporangium (spore capsule) on its tip. One sporangium may produce up to one million spores. Maturing spore capsules are guarded by a covering called the calyptra that shrivels and falls off when the spores are mature. The calyptra can be a distinguishing part of a moss species, and they are often useful in identifying new mosses.
A cap called the operculum tops the capsule's opening under the calyptra. The capsule opening (peristome) can have teeth that help hold it closed. Matured spores are released when the capsule top ruptures and drift off to form new plants. Like the calyptra, the operculum and peristome of some moss species are highly identifiable.
heat moves through the atmosphere through the process of ?
Answer:
Heat moves through the atmosphere through the process of Conduction.
Explanation:
Conduction, radiation and convection all play a role in moving heat between Earth's surface and the atmosphere. Since air is a poor conductor, most energy transfer by conduction occurs right near Earth's surface.
which mutated protein causes the symptoms of sickle cell disease?
Answer:
Mutations in the HBB (beta-globin) protein causes symptoms of sickle cell disease.
Are there other types of cells other than prokaryotic and eukaryotic cells?
Answer: No there is not im pretty sure there are only those two cell types.
Explanation:
Proteins are polymers of amino acids linked by ______. Multiple choice question. hydrogen bonds phosphodiester bonds covalent bonds peptide bonds
Answer:
peptide bonds
Explanation:
Amino acids are linked together into linear chains called polypeptides
A typical leaf is composed of multiple layers of specialized cells. What is the correct order of layers starting on the upper surface of the leaf and progressing to the lower surface?
Answer: cuticle - epidermis - palisade mesophyll - spongy mesophyll- epidermis - cuticle
Explanation:
Decomposers make ______
available.
A. erosion
B. air
C. weathering
D. nutrients
Answer:
D
Explanation:
Answer:
D. Nutrients.
Explanation:
An estuary is _______.
For environmental science plz helpp
Answer:
A
Explanation:
Answer:
a partially enclosed coastal body of water (usually at the mouth of a river) where fresh water from the river and salt water from the sea mix.
Explanation:
what is the first part of the small intestine called?
Answer:
The first part of the small intestine is called duodenum
Explanation:
The small intestine is a tightly folded tube which connects to the stomach on the top end and to the large intestine on the bottom end.
The small intestine consists of three parts:
duodenumjejunum (absorbs sugars, amino acids, and fatty acids)ileum (absorbs remaining nutrients that did not get absorbed by the duodenum or jejunum)Duodenum is responsible for completing the first phase of digestion. In this section of the intestine, food is mixed with enzymes and bile which help break down food.
Answer:
Duodenum
Explanation:
Duodenum is the first part where most of the small intestine digestion happens
The surge of blood entering arteries causes an expansion and recoil of the arterial wall producing a _____________ that can be felt externally.
Answer:
I think the answer you're looking for is pulse
can someone help me on this question
Answer:
unknow
Explanation:
Black eyes (B) are dominant to red eyes (b) in mice. Use a Punnett square to cross two heterozygous parents. What are the possible genotypes?
A. bb
B. BB and Bb
C. BB, Bb, and bb
D. Bb and bb
when taking a blood pressure reading which reading indicates the greatest force on the walls of the artery?
Answer: Systolic blood pressure
Explanation:
Find the remainder when p(x) = –2x5 + x4 + 5x3 + 4x + 1 is divided by (x - 2).
The remainder when p(x) = -2x⁵+x⁴+5x³+4x+1 is divided by (x-2) is 1.
To solve the question above, we make use of the remainder theorem.
Remainder Theorem: It states that if a function F(x) is divided by (x-a), the remainder is F(a).
From the question,
Given:
Dividend ⇒ p(x) = -2x⁵+x⁴+5x³+4x+1Divisor ⇒ (x-2)in view of the above and applying the Remainder theorem, The remainder will be p(2)
p(2) = -2(2⁵)+2⁴+5(2³)+4(2)+1p(2) = -64+16+40+8+1p(2) = 1hence the remainder when p(x) = -2x⁵+x⁴+5x³+4x+1 is divided by (x-2) is 1
Learn more about the remainder theorem here: https://brainly.com/question/13328536
what are Negative health effects of frequent, self-induced vomiting?
Answer: It can rot your teeth out because of the stomach acid.
Explanation:
which cells requires the most food
Answer:
We need to eat and drink to survive, and so do our cells. Using a process called endocytosis, cells ingest nutrients, fluids, proteins and other molecules.
Explanation:
Compound use by cells to store and release energy
Answer:
Adenosine triphosphate (ATP) is a chemical compound cells use to store and release energy. An ATP molecule consists of adenine, the sugar ribose, and three phosphate groups.
After siting in the bathtub for hours your fingers start to look like prunes due to the process of
Answer:Shrinking Blood vassels
Explanation:
Can somebody help please due today
Answer:
Fossil record, history of life as documented by fossils, the remains or imprints of organisms from earlier geological periods preserved in sedimentary rock. Their ages can be established by comparing the fossils in each layer.
Answer:
Explanation:
Fossil record, history of life as documented by fossils, the remains or imprints of organisms from earlier geological periods preserved in sedimentary rock. Their ages can be established by comparing the fossils in each layer.
Credits to the person under me i just need points
(pretty sure its correct tho)
why are there no identical individuals among humans?
Answer: Numerous contrasts between people are without a doubt a direct result of contrasts in their qualities. ... People vary, obviously, on the grounds that natural cycles are intrinsically factor.
Explanation:
Spindle fibers begin to form.
Answer: Yes that is true but you gave basically NO information at all.
Explanation:
Answer:
yes that that that that Tish that that
What is mineralization
Answer:
Mineralization is the process by which chemicals present in organic matter are decomposed or oxidized into easily available forms to plants.
What processes are responsible for the formation of copper ?
Answer:
The high temperatures of volcanic magma creates hydrothermal veins, allowing some of the heat to escape near the upper layers of the Earth's crust. This is why copper is often found in the sedimentary layer, where sand and mud are compressed until they form a layer of sedimentary rock on the surface of the earth
Explanation:
in an experiment describe photosynthesis
what is pathogen????
Pathogen is kinda disease, virus, bacteria or other microorganisms ( which can cause disease)
Answer: A pathogen is usually defined as a microorganism that causes, or can cause, disease :)
Explanation:
There are different types of pathogens, but we're going to focus on the four most common types: viruses, bacteria, fungi, and parasites.
What is another name for the sugars organisms use for energy?
a) lipids
b) carbohydrates
c) proteins
d) nucleic acids
I NEED THIS ASAP
35 POINTS
Answer:
b) carbohydrates
Explanation:
Are gender traits completely a result of societal expectations?
No, Gender traits are not as a result of societal expectations. They are as a
result of biophysical processes in the body.
Both genders have their unique chromosomes composition in which
Males have XY.Females have XX.During reproduction, the male sex cell passes either the X or Y chromosome
to the offspring while the female pass only the X chromosomes.
This depicts that the male sex cells which is the sperm is the main
determinant in the gender of a child.
Read more about Gender traits here https://brainly.com/question/913735
Give an example of an adaptation
An adaptation is any characteristic that helps a plant or animal survive in its environment. A penguin's feathers are an adaptation. For example, animals that live in cold places have adaptations to keep them warm. Plants that live in dry areas have adaptations to help them conserve water.
Answer:
Adapting to a new environment is an example of adaptation.
Explanation:
Adaptation means to be able to adjust to something new.
What are some similarities and differences between an angiosperm and a gymnosperm? PLEASE
Answer:
Here are some similarities and differences
Explanation:
Both are more highly evolved than nonvascular plants, both are vascular plants with vascular tissue that live on land and reproduce by making seeds, both are classified as eukaryotes
Only angiosperms are known as flowering plants, many have blossoms and fruits that contain seeds and the typically drop their leaves when the seasons change their leaves are flat and are seasonal in their life cycle
Gymnosperms produce uncovered seeds, most have green needle-like leaf structures, they are generally evergreen