1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
stepan [7]
3 years ago
5

Which if the following statements is a part of cell theory???????????A.most living things are made up of cells

Biology
1 answer:
Svetradugi [14.3K]3 years ago
3 0
THE ANSWER IS A,<span>most living things are made up of cells
</span>

You might be interested in
Which statement best describes how a human trait develops and can be passed on to future generations?
VLD [36.1K]
There are a lot of statements that one can give that would best describe how human trait develops and an be passed on to future generations. for example, one parent has a trait, so while parenting, she could pass it to her son or daughter unconsciously, and their son or daughter would pass it to their son when they grew up.
6 0
2 years ago
Gene expression is often assayed by measuring the level of mrna produced from a gene. what level of the control of gene expressi
mezya [45]

Answer is Translational control.

Gene expression refers to genes being ‘turned on’ and makes protein as product. Protein can be a structural protein, an enzyme or a control molecule. The protein synthesis rate is proportional to the concentration and translational efficiency of its mRNA. Translational control governs the efficiency of mRNA production. Translational control mechanisms are the most determining for final protein levels.

5 0
3 years ago
Read 2 more answers
It is estimated that every year more than 15 million babies are born too early. The lungs of these premature infants are often i
Triss [41]

Answer:

The development of artificial placentas can be a solution that would allow the survival of premature babies, favoring the complete development of the organs -such as the lungs- that would allow their viability.

Explanation:

The main problem facing a premature newborn - before 30 weeks of gestation - is his inability to breathe, due to an immature respiratory system.

During pregnancy, the mother provides nutrients and oxygen to the fetus through the placenta and the umbilical cord, which in turn receives carbon dioxide and waste products that eliminates the future baby. At birth, the baby should be able to breathe and nourish itself.

Some circumstances can cause premature birth, with the consequences of a fragile baby who may not be able to breathe due to the immaturity of his lungs.

<h3>Question 1: State how an artificial placenta would be of benefit to the lungs of premature infants. </h3>

In the case of a newborn whose lungs are not suitable for breathing, an artificial placenta provides conditions similar to the maternal uterus that allow the complete development of the respiratory system, that is, the formation of the bronchial tubes, bronchioles, pulmonary alveoli, as well as the production of surfactant, a substance that prevents alveolar collapse during breathing.

Knowing that a premature baby cannot return to the mother's womb, it is proposed to extend the period of development by introducing the newborn in a device that simulates the conditions of the uterus and the placenta.

<h3>Question 2: Explain why the lambs’ blood must be filtered as it circulates through the artificial placenta. </h3>

In the artificial placenta, also called biobag, the umbilical cord of the lambs is connected to a gas exchange machine - similar to that of extracorporeal circulation - capable of providing blood, nutrients and oxygen, in addition to eliminating waste products and dioxide carbon

The liquid contained in the biobag has a composition similar to that of the amniotic fluid and provides nutrients to the lamb. External monitors connected to the lamb provide all the necessary information about the vital signs of the developing animal.

<h3>Question 3: State one reason why premature lambs were likely used as model organisms in this study rather than mice.</h3>

Lambs have been chosen as a model to perform studies of artificial placenta because their fetal development is very similar to that of humans although their maximum gestation time is shorter.

In lambs, full gestation lasts up to 22 weeks, and lung development occurs between weeks 15 and 17, while in the human fetus it occurs between weeks 21 and 26. However, the stages of development are quite similar.

Since so far only the use of artificial placentas has been achieved for a maximum of 30 days, the relative rapidity with which lung development occurs in lamb fetuses allows its study, and the results of tests in lambs can be extrapolated to the fetus Human in the future.

Learn more:

Authorization for animal research brainly.com/question/8226295

8 0
3 years ago
What is a beneficial association between the roots of a plant and a fungus?
Gnom [1K]

Answer: Mycorrhiza

Explanation: Mycorrhiza is a symbiotic relationship between a plant and a fungi. Nearly 80 percent of all plants with root systems participate in this mutualistic relationship. In mycorrhiza, the fungus forms a haustoria that penetrates the cell walls of the plant's roots. The fungus absorbs all the nutrients from the roots as they are transported to the plant. In return, the fungus gives the plant necessary chemicals and minerals that it cannot properly reach on its own.

3 0
3 years ago
Read 2 more answers
Please answer each
nexus9112 [7]

Answer:

Function of each male reproductive system-

They produce, maintain and transport sperm and semen . They discharge sperm into the female reproductive tract. They produce and secrete male sex hormones.

Function of each female reproductive system-

The ovaries produce the egg cells, called the ova or oocytes. The oocytes are then transported to the fallopian tube where fertilization by a sperm may occur.

8 0
2 years ago
Other questions:
  • Flower position, stem length, and seed shape are three characters that Mendel studied. Each is controlled by an independently as
    6·1 answer
  • I need answers to #2
    13·1 answer
  • Compared to a normal body cell, a normal egg cell contains
    7·2 answers
  • The first class of antiviral drugs developed to treat hiv infection, such as azt, were known as reverse transcriptase inhibitors
    9·1 answer
  • Animal chAracteristics<br> List
    5·1 answer
  • What is the function of a cell's selectively permeable plasma membrane?
    14·1 answer
  • Where does energy and matter come from
    14·1 answer
  • What is the correct answer?
    10·2 answers
  • _______metamorphism is when metamorphism occurs near magma._______metamorphism usually results from plates colliding. ______meta
    15·1 answer
  • Anyone know what it is?
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!