Answer:
They lose their end walls so the xylem forms a continuous, hollow tube. They become strengthened by a substance called lignin . Lignin gives strength and support to the plant.
Please answer ASAP!!!
The group protozoa is not an official taxonomic group and is used as an informal term only within the scientific community. question 4 options: 1) true 2) false
The statement 'the group protozoa is not an official taxonomic group and is used as an informal term only within the scientific community' is True.
What are protozoa?Protozoa is a widely diverse group composed of different types of single-celled unicellular microorganisms.
Protozoa do not have cell walls and generally, they are heterotrophic organisms that cannot obtain their own food.
In conclusion, the statement 'the group protozoa is not an official taxonomic group and is used as an informal term only within the scientific community' is True.
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which is the primary source of energy for most cells in the body
How does a nuclear reaction compare to a chemical reaction?
Answer:
Nuclear reactions involve a change in an atom's nucleus, usually producing a different element
Explanation:
Chemical reactions, on the other hand, involve only a rearrangement of electrons and do not involve changes in the nuclei. Different isotopes of an element normally behave similarly in chemical reactions.
Social networks and the reciprocal norms associated with these networks that encourage people to do things for each other are known as a. social capital. c. networking. b. state capitals. d. the digital divide. please select the best answer from the choices provided a b c d
Social networks and the reciprocal norms which are associated with these networks and encourages people to do things for each other is: A. social capital.
What is social capital?Social capital can be defined as the social networks and the reciprocal norms which are associated with these networks, and it is designed to encourage people to do things for each other.
This ultimately implies that, social capital is a network of relationships existing between people who live and work in a specific society, which enables it to function effectively and efficiently.
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Argue whether flying is an innate or a learned behavior for birds.
1. Briefly explain how multicellular organisms can develop from a single cell:
Answer:
Plants, animals and fungi are the most spectacular and complex achievements of this kind. There are essentially two ways to make a simple multicellular entity out of single cells: either a single cell divides and its offspring stick together, or several solitary cells aggregate to form a colony
Explanation:
What are five ways to help keep groundwater clean?
Five ways to keep Ground Water Clean!
Purification
Less Littering
Less pollution
Less gas around water areas
Cleaning up around your local area
Some resources are not readily available for conversion to energy. Which choice below would MOST likely limit the amount hydroelectricity that can be produce and used in the area?
A- Sunlight
B-Wind
C-water
D-biomass
The amount of water is MOST likely limit the amount hydroelectricity that can be produce and used in the area.
What is hydroelectricity?Hydroelectricity is the electricity which is generated from the water.
Hydroelectricity converts the kinetic energy of moving water current to electrical energy in a dynamo.
Therefore, the amount of water is MOST likely limit the amount hydroelectricity that can be produce and used in the area.
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What are disadvantages of line breeding?
Answer:
Line breeding can accomplish several goals: 1) produce a more consistent and uniform offspring; 2) identify breeding populations that have no genetic flaws, or identify existing flaws so they can be eliminated; 3) accentuate and sustain more consistent excellence; 4) develop linebred progeny that will provide :]
What phenotypes are possible for the turtles?
Answer:Reptile
Explanation:im not sure
Which gland is responsible for your metabolism? why is this so important?.
Answer:
Thyroid gland
The thyroid gland is an endocrine gland in your neck. It makes two hormones that are secreted into the blood: thyroxine (T4) and triiodothyronine (T3). These hormones are necessary for all the cells in your body to work normally
•It plays a major role in the metabolism, growth and development of the human body.
•It helps to regulate many body functions by constantly releasing a steady amount of thyroid hormones into the bloodstream.
•Its correct functioning depends on a good supply of iodine from the diet.
Why is it important to maintain the biodiversity and health of australia’s great barrier reef?.
Answer:
The Great Barrier Reef's biodiversity
Maintaining a healthy and diverse Great Barrier Reef ecosystem is important so it is better able to withstand, recover and adapt to impacts and stress. A productive and healthy Reef environment provides essential resources such as fish and prawns and supports many industries
A scientist on a field trip in the amazon basin is observing an animal swinging from branch to branch high up in the forest canopy. she believes it belongs to the family of primates. what characteristics would she most likely expect the animal to have that would help it to survive in its environment? select three correct answers. a. the animal has a long snout to better smell its prey and webbed hands and feet for swimming. b. the animal's eyes face forward with overlapping fields of view, providing a three-dimensional view and accurate judging of distance. c. the animal has long flexible arms and a prehensile tail that help it swing from branch to branch. d. the animal has five flexible fingers and toes, and an opposable thumb and big toe, all used for grasping tree branches and food items, such as fruits, leaves, and seeds.
The primate family characterizes by having long arms they use to move, an improved visual system, 5 fingers, and prehensile capability. Options B, C and D.
What are the primates' morphological characteristics?
Primates characterize as having an elongated head that culminates in the snout.
They are pentadactyl, meaning that they have five fingers in their hands and feet. Their thumbs are opposable, providing the animal the prehensile capacity.
Their visual system tends to face both eyes to the front and see in colors, characteristics that improve their sight, as primates rely little on their smell sense and much on their sight.
They are quadrupeds with a svelte body and soft hair. Their tail is long. They move from tree to tree by making use of their extremities. They have a dental comb to clean themselves and others.
They are herbivorous frugivorous.
The three correct answers are,
b. the animal's eyes face forward with overlapping fields of view, providing a three-dimensional view and accurate judging of distance.
c. the animal has long flexible arms and a prehensile tail that help it swing from branch to branch.
d. the animal has five flexible fingers and toes, and an opposable thumb and big toe, all used for grasping tree branches and food items, such as fruits, leaves, and seeds.
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Reduced vegetation on Earth results in _____.
Answer:
fragmentation of habitat, soil erosion, soil compaction, and increased input of sediment into waterways.
Explanation:
Reduced vegetation on earth will result in more carbon dioxide in the atmosphere because the plants will not absorb the rest.
The effects of plant removal on soil biota were similar to that in the dry season. For both seasons, understory removal had no significant effects on soil Physico-chemical properties (soil water content, pH, total nitrogen, and soil organic carbon) but the removal of all plants significantly decreased soil pH.
Expansive changes in tundra and boreal vegetation can have significant implications for physical and ecological processes, as well as impacts on communities. Vegetation change that alters land surface darkness influences albedo and surface energy balance.
Why do we soak a seed in water before sowing in the soil?
Answer:
we do it to select the best seeds
the seeds floating on the top are bad seeds which are empty inside
the seeds that are on the bottom are good seeds they are heavy
How can scientists determine the relative age of the fossil?
Answer:
Radiometric dating methods
Explanation:
Geologists usually use radiometric dating methods, based on the natural radioactive decay of certain elements such as potassium and carbon to find the age of fossils.
2. Why does Grover Norquist disagree with Reihl's statement? [class is eco-fe]
The electrical impulse of the heart normally begins at the:.
Answer:
SA node (sinoatrial node)
Explanation:
SA node (sinoatrial node) – known as the heart's natural pacemaker. The impulse starts in a small bundle of specialized cells located in the right atrium, called the SA node. The electrical activity spreads through the walls of the atria and causes them to contract. This forces blood into the ventricles.
what are the importance of biology? give any two point
Answer:
helps us understand the living world and the ways its many species (including humans) function, evolve, and interact.
Explanation:
The two basic types of white blood cells are?
Answer:
Myeloid cells (myelocytes) include neutrophils, eosinophils, mast cells, basophils, and monocytes.
Explanation:
Short answer myeloid cells and monocytes
An object is placed in an electric field. the object is not affected by the electric field. the strength of the electric field is then increased. what can be said about the object?
Answer:
neutron
Explanation:
In fact, a particle is affected by an electric field only if it is electrically charged. The neutron is electrically neutral (its charge is zero), so it does not interact with the electric field.
Answer:The object does not carry a charge.
Explanation:
Mitosis is a form of cell division in which one cell divides into two new cells. Each new cell has the same number of chromosomes as the original cell.
In which of the following processes does mitosis play a vital role?
Answer:
growth
Explanation:
as the living organism grow, it's as a result of cell division
Answer:
dividing the number of cells into four daughter cells
What is the function of the placenta?
It covers the cervix.
It protects the vagina.
It nourishes the embryo.
It fertilizes an egg.
Answer: It nourishes the embryo.
Explanation:
The placenta's main purpose is to nourish the embryo. It helps to provide oxygen and nutrients to the embryo. The placenta is an organ that develops during pregnancy.
what do chromosons form from
Answer:
DNA wraps around proteins called histones to form units known as nucleosomes. These units condense into a chromatin fibre, which condenses further to form a chromosome.
Explanation:
Have a good day Btw dont worry bout my name
Chris wrote a few steps to describe how carbon circulates between the ground and living organisms.
Step 1. Plants absorb carbon dioxide in the air through photosynthesis.
Step 2. Dead plants are broken down by decomposers.
Step 3. Carbon stays in the ground for long-term storage as fossilized carbon.
If step 1 is removed, which statement best describes the effects of this missing step on the carbon cycle?
A. More carbon is stored in plants for long-term storage.
B. Less carbon is available for long-term storage in the ground.
C. Less carbon is stored in atmosphere instead of plants.
D. There are more fossil fuels available for energy use.
Answer:
B. Less carbon is available for long-term storage in the ground.
Explanation:
because then the carbon stays in the ground
Answer:
B. Less carbon is available for long-term storage in the ground.
Explanation:
If plants do not remove carbon from the air, it stays in the air and does not end up as fossilized carbon in the ground.
"Helicopter" seeds called samaras are produced on maple and ash trees. How are these seeds dispersed?
O eaten and excreted by animals
O carried by water
O carried by wind
O transported by pollinators
Who invented computer??
Answer:
Charles Babbage
Explanation:
English mathematician and inventor Charles Babbage is credited with having conceived the first automatic digital computer. During the mid-1830s Babbage developed plans for the Analytical Engine.
Answer:
English mathematician and inventor Charles Babbage is credited with having conceived the first automatic digital computer. During the mid-1830s Babbage developed plans for the Analytical Engine.
When you're old enough to vote, will you be influenced by celebrity endorsements ? Why or why not?
Celebrity endorsers can influence the portion of the public (increasingly small) who otherwise do not have strong candidate preferences and pay so much attention to politics. If the celebrity has huge interest and knowledge of politics so i may get influenced.
When was celebrity endorsement started in United states?Celebrity endorsements in the U.S. were started in 1920, precisely a hundred years ago, with film stars publicly supporting candidate Warren G. Harding in the presidential election. From then on, many other celebrities raised their political opinions among their fanbase for electoral candidate.
Celebrities themselves, by making an endorsement may risk losing a share of their audience and inviting public joke and anger.
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Two sisters are born from a father who has blue eyes and a mother who has brown eyes. One sister has blue eyes, and the other has brown eyes. Which of the following explains this difference in eye color? A Each sister inherited a different combination of alleles from their parents that determined their eye color. B One of the sisters inherited all of her alleles from the mother, and the other sister inherited only from the father. C The environment caused the alleles to be expressed in different ways, making the sisters' eye colors different. D The sister with the blue eyes had only one allele for determining eye color, and the sister with brown eyes had two.
Answer:
A)Each sister inherited a different combination of alleles from their parents that determined their eye color.
Explanation:
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-
-
-
-
-
Answer:
A.
Explanation:
A because they both inherited a different combination of alleles from their parents that determined their eye color.
