Answer:
True
Explanation:
There will be diversity of species and this in turn leads to stability of the ecosystem.
Explanation:
It is true know you have to give brilient
name two tissues which are thickened with lignin
Answer: parenchyma (living thin-walled tissue) and collenchyma
Explanation:
Which of the following is defined as the ability to be changed or change according to circumstance
Answer:
flexibility
Explanation:
Organelles are found in...
A. the blood stream of complex organisms.
B. inside most cells.
C. constantly moving between cells.
Answer:it’s C
Explanation:
Mitosis is responsible for growth, repair, and maintenance in an organism because
Answer:
Explanation:
This is because mitosis produce two daughter cells that are genetically identical to each other thereby producing new cells that are particular to different tissues thereby making it to grow. These new cells that are genetically identical replaced the old or damaged cells , it's repair and also help in healing process.
Chapter 21.1 Review
1. What characteristics of living things do viruses have?
2. Compare and Contrast How is viral reproduction different from that of cell-based organisms?
Answer:
1. Living characteristics of viruses include the ability to reproduce – but only in living host cells – and the ability to mutate.
2.Viruses cannot reproduce independently; cell-based organisms can reproduce independently.
Dichotomy means _____.
Answer:
Branching into two different parts, think of a tree, the trunk of a tree will branch into two equal parts, and then continue growing at about the same rate.
TRUE OR FALSE Prokaryotic cells can’t replicate DNA, because they do NOT possess nuclei.
Answer:
false
Explanation:
hope it helps
Please help ASAP
Which of these is NOT an example of an environmental factor that can affect an organism's growth?
Inheriting the gene for purple flower petals
or
Limited or no shelter/space to nurture offspring
or
inadequate sunlight
or
insufficient access to water or nutrients
Witch statement about human activity and the environment is NOT true?
The tendency of a cell or an organism to maintain a stable internal environment is known as _______.
A.
homeopathy
B.
homology
C.
homogeneous
D.
homeostasis
(No links)
Which is NOT a characteristic of unsaturated fats?
A. liquid at room temperature
B. animal fats
C. kinks in the carbon chain
D. not fully saturated with hydrogens
Answer:
C
Explanation:
state the taxonomic family to which the virus that causes EVD belongs
Ebolavirus, genus of viruses in the family Filoviridae, certain members of which are particularly fatal in humans and nonhuman primates. In humans, ebolaviruses are responsible for Ebola virus disease (EVD), an illness characterized primarily by fever, rash, vomiting, diarrhea, and hemorrhaging.
2. Prokaryotes differ from eukaryotes by all of the
following characteristics EXCEPT:
A. kinds of nucleotides in their DNA
B. structure of their flagella
C. structure of their plasma membranes
D. structure of their chromosomes
E. methods of cell division
Answer:
C. structure of their plasma membranes
Explanation:
hope it helps
Name 3 stages of cell division, and give a brief description of what happens in each stage? please help I really need some help with this much appreciated
Answer:
Prophase
- Mitosis begins with prophase, during which chromosomes recruit condensin and begin to undergo a condensation process
Metaphase
- Next, chromosomes assume their most compacted state during metaphase, when the centromeres of all the cell's chromosomes line up at the equator of the spindle
Anaphase
- The progression of cells from metaphase into anaphase is marked by the abrupt separation of sister chromatids. Two separate classes of movements occur during anaphase. During the first part of anaphase, the kinetochore microtubules shorten, and the chromosomes move toward the spindle poles. During the second part of anaphase, the spindle poles separate as the non-kinetochore microtubules move past each other
Answer:
the 3 stages are: Interphase, Mitosis, Cytokinesis
Explanation:
Interphase is the phase of the cell cycle in which a typical cell spends most of its life. Interphase is the 'daily living' or metabolic phase of the cell, in which the cell obtains nutrients and metabolizes them, grows, replicates its DNA in preparation for mitosis, and conducts other "normal" cell functions.
Mitosis: a type of cell division that results in two daughter cells each having the same number and kind of chromosomes as the parent nucleus, typical of ordinary tissue growth.
Cytokinesis: The cytoplasmic division of a cell at the end of mitosis or meiosis, bringing about the separation into two daughter cells.
please help tephographic map
Answer:
1 weathering 2 erosion 3 deposition
Explanation:
assuming this portrays a mountain the rain starts at the top eroding down the mountain carrying any sediment and then is deposited at the base
clearing of these has a harsh effect on animal population. What is it called?
Select the correct statement about the three-chambered hearts of amphibians and nonbird reptiles. A scheme of blood circulation of reptiles except for birds. The reptiles have a three-chambered heart that consists of two atria and one ventricle with an incomplete septum. There are two circuits: pulmonary and systemic. In the pulmonary circuit, the blood from the right ventricle is pumped in to lung capillaries and returned to the left atria. In the systemic circuit, the blood is pumped from the left ventricle to the systemic capillaries via the left systemic aorta and is then returned to the right atria. There is also one vessel going from the right ventricle to the aorta right before it branches to smaller arteries. This vessel carries mixed blood. All blood on the right side of the circuits is venous and all blood on the left side is arterial. Select the correct statement about the three-chambered hearts of amphibians and nonbird reptiles. The three-chambered hearts of amphibians and nonbird reptiles are facultative, allowing variation in blood flow through the heart. The three-chambered heart is inferior to the four-chambered hearts of birds and mammals, limiting the evolutionary success of amphibians and nonbird reptiles. Pulmonary and systemic blood fully mixes in the ventricle of a three-chambered heart.
Answer:
The three-chambered hearts of amphibians and nonbird reptiles are facultative, allowing variation in blood flow through the heart.
Explanation:
In Anatomy, cardiac cycle can be defined as a complete heartbeat of the human heart which comprises of sequential alternating contraction and relaxation of the atria and ventricles, therefore causing blood to flow unidirectionally (one direction) throughout the human body.
Generally, the cardiac cycle occurs in two (2) stages;
I. Diastole : in this stage, the ventricles is relaxed and would be filled with blood.
II. Systole: at this stage, the muscles contracts and thus, allow blood to be pushed through the atria.
All amphibians and reptiles except for crocodiles (having four-chambered heart) have three-chambered hearts, which typically comprises of a partially divided ventricle and two atria.
Hence, the correct statement about the three-chambered hearts of amphibians and nonbird reptiles is that, the three-chambered hearts of amphibians and nonbird reptiles are facultative, allowing variation in blood flow through the heart due to the partially divided ventricle.
1081_Cellular En
How are cellular respiration and photosynthesis related, in terms of energy?
The energy captured in photosynthesis is used to power cellular respiration.
The energy transformed in cellular respiration is used to power photosynthesis.
Photosynthesis and respiration performt the same task in terms of energy transformation.
Energy is not involved in either photosynthesis or cellular respiration.
ОО
Answer:
D, or the last one stating that energy is not involved.
Explanation:
You can look it up to check, but D is the right answer.
how to calculate the mass of sodium atom?
Answer:
22.989769
The relative atomic mass of sodium is calculated by dividing the atomic mass of sodium by the unified atomic mass unit, which is 1.66*10-27 kg. The number of 23 amu means that a normal, or stable, sodium atom weighs 23 unified atomic mass units.
Explanation:
Hope this helped Mark BRAINLIEST!!!
Drag each label to the correct location on the chart.
Sort the actions and terms based on the type of pollution they directly cause.
28. Eubacteria can be distinguished from archaebacteria by
a.The presence of a true nucleus
b. Being multicellular
Difference in the makeup of cell wall
d. The presence of organelles
Answer: D
Explanation:
i am sorry if this is wrong
A researcher using random assignment:
a
puts half the group in the dependent variable group and half in the independent variable group in a random way.
b
places participants in the sample group or the population group randomly.
c
assigns participants to the experimental and control groups by chance.
d
gives half the sample the dependent variable and doesn't give anything to the other half.
AAnswer:A
Explanation:because why not
Why would allowing a plant to undergo photosynthesis 24 hours a day cause it to grow faster?
The average number of individuals of the same species per unit of area or volume at a given time is the
population's
O carrying capacity,
O birth rate.
O size.
Odensity.
O distribution.
Next >
What part of the brain controls the following activity: you breathe faster when you run.
a]cerebrum
b]cerebellum
c]pons
d]medulla oblongata
Answer:
The answer is D because it is medulla
Explanation:
Hope u like it
Answer:
c:ponds
Explanation:
The pons, while involved in the regulation of functions carried out by the cranial nerves it houses, works together with the medulla oblongata to serve an especially critical role in generating the respiratory rhythm of breathing. Active functioning of the pons may also be fundamental to rapid eye movement .
HELP WILL GIVE BRAINLIEST IF CORRECT: Which plants are usually the first to live in soil?
a. Simple plants
b. Trees
c. Plants that can support insect life
d. Flowers
Answer:
simple plants
Explanation:
What are the 3C’s that plant cells have, but animal cells lack?
Answer:
Cell wall, Chloroplasts, Central vacuole
Explanation:
Answer: cell wall, chloroplast, central vacuole,
Explanation:
What process adds carbon dioxide to the air
teven cycle
water evele
respation
photosynthesis
Answer:
Respation
Explanation:
Though it is spelled respiration.
How is the ocean affected by the releasing of excess carbon?
Answer:
Explanation:
Because of human-driven increased levels of carbon dioxide in the atmosphere, there is more CO2 dissolving into the ocean. The ocean's average pH is now around 8.1 , which is basic (or alkaline), but as the ocean continues to absorb more CO2, the pH decreases and the ocean becomes more acidic.
______and____ are early tetrapods that do not have features unique to fish. Describe how these two species differ antaomically and what that means about where they each live.
