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
adell [148]
2 years ago
6

Reptiles are able to survive on land because of characteristics that include a shelled egg, scaly skin, and efficient circulator

y and respiratory systems.
a. True
b. False
Biology
2 answers:
Scorpion4ik [409]2 years ago
8 0

Answer:

a. True

Explanation:

One of the characteristics in reptile reproduction is that they are vertebrate animals and reproduce by eggs, that is, they are oviparous. Reptile eggs are quite similar to those we can find in birds and differ from those laid by amphibians and fish. This is because reptile eggs are amniotic, that is, they have a specific membrane that prevents the sequence of the egg.

The oviparous reproduction of reptiles stands out for the fact that the eggs they lay are specifically designed to survive without problems in arid conditions thanks to the amount of elements that compose it, we refer to the amniota egg. For starters, the shell is hard enough to protect the embryo, but at the same time it is permeable enough to allow the exchange of gases with the outside. The egg needs both water and nutrient reserves and normally these reserves are obtained through albumin. In addition to this, the egg has a sac that collects all the waste compounds and also has the amniotic sac with its amniotic fluid that serves as a buffer for the embryo.

 

The skin of reptiles resembles that of amphibians, as it is composed of two layers called dermis and epidermis.

Unlike amphibians, reptile skin does not have any type of glands to moisten it, which gives it a drier and harder skin that also makes it impervious to water.

The circulatory system in reptiles is VASCULAR, CLOSED, DOUBLE and INCOMPLETE, double because there are 2 blood circuits, the minor or pulmonary circulation (heart-lung-heart) and the major or systemic circulation heart-body-heart), it is vascular because the blood leaves the heart thro ugh the blood vessels, it closes because the blood never leaves the blood vessels, that is, it is not poured into large interoceanic spaces or blood lagoons, it is incomplete because the venous and arterial blood mix in the Only ventricle possess, however, in crocodiles (more evolved reptiles) by having 2 ventricles, the mixture of both blood persists, that is, there is a minimal mixture of both types of blood.

In all reptiles breathing is pulmonary. The lungs have partitions or partitions that offer a greater gas exchange surface and greater efficiency. Ophidiums, like snakes, only have the right functional lung, the left lung is atrophied. Sea turtles, in addition to lung breathing, have sewer breathing for this because their vascularized sewer takes the O2 that dissolves in the water.

N76 [4]2 years ago
5 0

Answer:

true

Explanation:

You might be interested in
Explain the difference between somatic cells and gametes
Marizza181 [45]

Answer:

somatic:any cell of a living organism other than the reproductive cells.

gametes:a mature haploid male or female germ cell which is able to unite with another of the opposite sex in sexual reproduction to form a zygote.

Explanation:

5 0
2 years ago
Analyze the diagram below and complete the instructions that follow.
Leni [432]
Please show that answer choices like what does a say
3 0
3 years ago
You have a population of dogs with three alleles for teeth size: L (large), M (medium), and S (small). Individuals with SS, SM,
Dahasolnce [82]

Answer:

<em>Small teeth will be missing. </em>

Explanation:

As seen from the information of the question, that dogs having medium and long teeth will not carry any alleles for small teeth. So, if a certain viral disease eradicates all the dogs with small teeth, there will be no organisms left to carry genes for this trait. Over time, the medium teeth dogs and long teeth dogs will be more adapted to the environment. Hence, after 10 generations no small teeth dogs will be seen.

5 0
3 years ago
Kira is a hemophiliac. This means that she does not produce clotting factors. What aspect of the clotting process should she be
Nesterboy [21]

Answer:

The correct answer would be "net formation by fibrin threads" .

Hemophilia is an X-linked recessive disorder in which a person is not able to produce clotting factors VIII (hemophilia A) or IX (hemophilia B).

These clotting factors are involved in the cascade of coagulation process which takes place after the formation of a platelet plug.

These clotting factors help in the conversion of fibrinogen (soluble protein) into insoluble fibrin which stabilizes the platelet plug and ensures that the wall of the vessel can be healed properly.

6 0
2 years ago
Which kind of organism is a heterotroph? photosynthesizers producers consumers plants
lapo4ka [179]

Consumers

Consumers are organisms that cannot make their food supply and example of consumer are animals. Thus, Consumer are commonly refers to as heterotrophy in the food chain and they eat food that are produced by producer. However, very few exotic plants and few protists are also consumers.

7 0
3 years ago
Read 2 more answers
Other questions:
  • Which one below is not a strand of RNA
    12·1 answer
  • QUESTION 1 to the lungs The spinal cord is a. anterior b. proximal c. posterior O d. distal​
    14·1 answer
  • if the kinetic energy of a sample increases, the _____ will also increase. potential energy temperature chemical energy nuclear
    7·2 answers
  • Mutations are sometimes helpful in providing food for people. TrueFalse
    15·1 answer
  • Males of some species have proteins in their ejaculate that cause the female to be less attractive to other males for some perio
    8·1 answer
  • Animals in Cestoda have: Group of answer choices septa and parapodia proglottids and no digestive system a pharynx and gastrovas
    7·1 answer
  • Please help me it’s a test !!!! <br> Question 2
    14·2 answers
  • Does anyone know the answer
    9·1 answer
  • What are domains in biology? Question 8 options: internet website classification system highest ranking of organisms in taxonomy
    6·1 answer
  • Which of the following abiotic factors are used to
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!